Source: http://www.freepatentsonline.com/7829071.html
Timestamp: 2015-08-29 07:24:40
Document Index: 4531479

Matched Legal Cases: ['arti4196190', '§119', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Personal care fixative - Interpolymer Corporation
Personal care fixative United States Patent 7829071 Abstract:
The present invention is directed to bimodal polymer compositions and personal care fixatives containing bimodal polymer compositions. The present invention includes a bimodal polymer composition having a first polymer with anionic character and a second polymer with cationic character and wherein the polymers form an interpenetrating polymer network. In one embodiment, the present invention also includes personal care fixatives (e.g., health care, hygiene or cosmetic compositions) containing the bimodal polymer composition. The present invention also includes methods for forming bimodal polymer compositions. Inventors:
Wolff, Norwin W. (Marshfield Hills, MA, US) Martin, Timothy L. (Louisville, KY, US) Hiff, Thomas L. (Strasbourg, FR) Application Number:
10/591886 Publication Date:
Interpolymer Corporation (Canton, MA, US) Primary Class:
424/70.16 Other Classes:
424/47, 424/70.11, 424/70.12, 424/70.122, 424/70.15, 525/66, 525/71, 525/191, 528/271, 528/288 International Classes:
A61Q5/06; A61K8/91; A61Q5/02; A61Q5/10; C08L101/02 Field of Search:
525/71, 523/124, 424/60.27, 524/28, 424/47, 525/66, 528/271, 424/70.11, 424/70.31, 525/191, 424/70.22, 510/475, 424/70.12, 424/70.21, 424/70.15, 55/528, 424/70.16, 424/70.122, 528/288, 424/70.29, 424/70.28, 424/70.27 View Patent Images:
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6696050Hair treatment compositions2004-02-24Barbuzzi et al.20030180245Hair cosmetic formulations2003-09-25Gotsche et al.20030171246Use of cationically modified, particle-shaped, hydrophobic polymers as addition agents in textile rinsing or care products and as addition agents in detergents2003-09-11Boeckh et al.6482394Propellantless pump sprays and pump foams containing an anionic copolymer of methacrylic acid and ethyl acrylate2002-11-19Schehlmann et al.6297326Grafted polyolefin compositions2001-10-02Wang et al.6294158Cosmetic composition containing an anionic polymer and an acrylic terpolymer, and use of this composition for the treatment of keratinous material2001-09-25Dupuis6136296Personal care compositions2000-10-24Midha et al.5998500Method of making a filter with interpenetrating polymer network that biodegrades1999-12-07Cahill et al.5997851Hair care compositions containing low melting point fatty alcohol and ethylene oxide/propylene oxide polymer1999-12-07Cox et al.5980878Thermoplastic elastomeric copolymers and hair and skin care compositions containing the same1999-11-09Torgerson et al.5948396Hair fixative amphoteric polymer composition1999-09-07Das et al.424/70.175723113Sprayable hair treatment composition1998-03-03Faryniarz et al.5686062Acrylic hair fixatives and methods of making same1997-11-11Tong5519063Oily cosmetic composition containing, as a thickener, an association of two copolymers and optionally containing an amphiphilic rheology corrector1996-05-21Mondet et al.5501851Emulsion polymers for use in hair fixatives1996-03-26Mudge et al.5441728Hairspray compositions1995-08-15Tsaur et al.5185143Terpolymer hair fixative resins prepared by solution polymerization of maleic anhydride, vinyl acetate and isobornyl acrylate1993-02-09Cohen5126124Hair spray resin composition1992-06-30Tazi et al.5068099Hair spray package with low volatile organic compound emission1991-11-26Sramek5009880Composition and process for the treatment of keratin materials with polymers1991-04-23Grollier et al.4796646Composition and process for treating keratinic substances with at least one anionic polymer and at least one quaternized protein1989-01-10Grollier et al.4725492Composite heat-insulating material1988-02-16Yazaki et al.4710374Cosmetic composition containing cationic polymers and anionic latexes1987-12-01Grollier et al.4521404Polymeric hair preparation1985-06-04Lorenz et al.4501834Gels formed from anionic and cationic polymers1985-02-26Su4223009Hair preparation containing vinyl pyrrolidone copolymer1980-09-16Chakrabarti4196190Acrylic hair setting resins having high resistance to moisture and rapid removability from the hair with shampoo1980-04-01Gehman et al.4177178Thermosetting acrylic copolymer compositions1979-12-04Das et al.3932610Shampoo composition1976-01-13Rudy et al.3145147Film forming composition of copolymers of nu-vinyl-epsilon-caprolactam1964-08-18Glickman et al. Foreign References:
EP05812641994-02-02Miscible blends of vinyl acetate-ethylene copolymers and copolymers of acrylic acid or maleic anhydride. Other References:
International Search Report for PCT/US2005/007925, date of mailing Jul. 12, 2005. Primary Examiner:
RELATED APPLICATIONSThis application is the U.S. National Stage of International Application No. PCT/2005/007925, filed Mar. 8, 2005, published in English, and claims the benefit under 35 U.S.C. §119 or 365 to U.S. Provisional Application No. 60/551,658, filed Mar. 9, 2004; U.S. Provisional Patent Application No. 60/606,985, filed on Sep. 3, 2004; and U.S. Provisional Patent Application No. 60/627,224, filed on Nov. 12, 2004, the entire teachings of all of which are incorporated herein by reference. Claims:
1. A bimodal polymer composition, comprising: a first polymer with anionic character, said first polymer having a molecular weight ranging from about 1,000 daltons to about 1,000,000 daltons; aqueous ammonia; and a second polymer with cationic character, wherein the polymers form an interpenetrating polymer network, said second polymer having a molecular weight ranging from about 1,000 daltons to about 1,000,000 daltons. 2. The bimodal polymer composition of claim 1 wherein the first polymer includes the following carboxylate salt monomer unit: wherein R is hydrogen or an alkyl group and X+ is a salt-forming cation. 3. The bimodal polymer composition of claim 2 wherein the first polymer contains about 12 to about 20 weight percent carboxylate salt monomer units. 4. The bimodal polymer composition of claim 1 wherein the second polymer includes an ammonium derivative monomer unit. 5. The bimodal polymer composition of claim 4 wherein the ammonium derivative monomer unit is selected from the group consisting of: dialkyl amino alkyl acrylates, dialkyl amino alkyl methacrylates, quaternized adducts of dialkyl amino alkyl acrylate, quaternized adducts of dialkyl amino alkyl methacrylate, methacrylamide and esters thereof, vinyl pyrrolidone, and vinyl caprolactam. 6. The bimodal polymer composition of claim 5 wherein the ammonium derivative monomer unit is dimethylaminoethyl methacrylate or a quaternized adduct thereof. 7. The bimodal polymer composition of claim 1 wherein at least one of the first polymer and the second polymer includes a water insoluble monomer unit. 8. The bimodal polymer composition of claim 7 wherein the water insoluble monomer unit is selected from the group consisting of: esters of acrylate, esters of methacrylate, ethers of acrylate, ethers of methacrylate, styrene, and alpha-methyl styrene. 9. The bimodal polymer composition of claim 8 wherein the water insoluble monomer unit is butyl methacrylate. 10. The bimodal polymer composition of claim 1 wherein at least one of the first polymer and the second polymer includes a water soluble monomer unit selected from the group consisting of: hydroxy functional acrylates, hydroxy functional methyacrylates, and alkoxylated adducts thereof. 11. The bimodal polymer composition of claim 10 wherein the water soluble monomer unit is hydroxypropyl methacrylate. 12. The bimodal polymer composition of claim 1 wherein at least one of the first polymer and the second polymer includes a cross-linking or multifunctional monomer unit. 13. The bimodal polymer composition of claim 12 wherein the cross-linking or multifunctional monomer unit is selected from the group consisting of multifunctional acrylates, multifunctional methacrylates and diallyl phthalate. 14. The bimodal polymer composition of claim 1 wherein the second polymer includes a monomer unit of anionic functionality. 15. The bimodal polymer composition of claim 14 wherein the monomer unit of anionic functionality is selected from the group consisting of: acrylic acid, methacrylic acid and esters thereof. 16. The bimodal polymer composition of claim 1 wherein the second polymer includes the following cationic monomer unit: or a quaternized adduct thereof, wherein R1, R3 and R4 are, independently, hydrogen or an alkyl group and R2 is an alkyl group. 17. The bimodal polymer composition of claim 1 wherein the second polymer contains about 12 to about 20 weight percent of cationic monomer units. 18. The bimodal polymer composition of claim 1 wherein the first polymer includes a monomer unit with anionic functionality selected from the group consisting of acidic acrylate monomer; acidic methacrylate monomer; 2-sulfoethylmethacrylate and salts thereof; 2-acrylamido-2-methyl propanesulfonate and salts thereof; crotonic acid; itaconic acid, fumaric acid; acid anhydrides; and half esters of di-carboxylate monomer. 19. The bimodal polymer composition of claim 1 wherein the first polymer includes a chain modifier. 20. The bimodal polymer composition of claim 19 wherein the chain modifier is an alcohol or a mercaptan. 21. The bimodal polymer composition of claim 1 wherein the first polymer is present in a concentration of about 10 to about 90 weight percent. 22. The bimodal polymer composition of claim 1 wherein the second polymer is present in a concentration of about 10 to about 90 weight percent. 23. The bimodal polymer composition of claim 1 wherein the glass transition temperature (Tg) of the composition is less than about 40° C. 24. A personal care fixative containing the bimodal polymer composition of claim 1. 25. The personal care fixative of claim 24 further including one or more volatile solvents. 26. The personal care fixative of claim 25 having a total volatile solvent concentration ranging from about 30 to about 95 weight percent. 27. The personal care fixative of claim 24 further including at least one of a neutralizing agent and an alcohol. 28. The personal care fixative of claim 24 further including at least one component selected from the group consisting of thickening agents, dispersing agents, emulsifiers, emollients, stabilizers, surfactants, fragrances, preservatives, proteins, conditioners, colorants, dyes, plasticizers, neutralizers, glossifiers and propellants. Description:
BACKGROUND OF THE INVENTIONRecent regulatory legislation and environmental concerns require that personal care fixatives contain lower levels of volatile organic compounds (VOC) than are presently found in many commercially available fixative products. For example, desirable hair fixative compositions should have VOC levels of less than about 55 weight percent and should exhibit little or no loss in curl retention in humidity conditions, good holding power, ease of removal and resistance to build up.A need exists for a personal care fixative that contains lower levels of volatile organic compounds than the VOC levels found in currently available fixative products while retaining or improving upon the fixative properties of those currently available fixative products.SUMMARY OF THE INVENTIONThe present invention is directed to bimodal polymer compositions and personal care fixatives containing bimodal polymer compositions. The present invention includes a bimodal polymer composition having a first polymer with anionic character and a second polymer with cationic character and wherein the polymers form an interpenetrating polymer network. In one embodiment, the present invention also includes personal care fixatives (e.g., health care, hygiene or cosmetic compositions) containing the bimodal polymer composition.The present invention also includes methods for forming a bimodal polymer composition. In one embodiment, a method for forming a bimodal polymer composition includes the step of polymerizing monomers to form a first polymer with cationic character in the presence of a second polymer with anionic character. In another embodiment, a method for forming a bimodal polymer composition includes the step of polymerizing monomers to form a first polymer with anionic character in the presence of a second polymer with cationic character.A method for forming a bimodal polymer composition is also described herein that includes the step of polymerizing monomers to form a first polymer with cationic character in the presence of a second polymer with anionic character wherein the first polymer is formed from a monomer composition including about 35 to about 45 weight percent ammonium derivative monomer, about 15 to about 30 weight percent water insoluble monomer, and about 5 to about 15 weight percent water soluble monomer.Personal care fixatives containing the present bimodal polymer compositions can contain lower levels of volatile organic compounds than the VOC levels found in currently available fixative products. In addition, the present personal care fixatives can have acceptable, or even improved, fixative properties.Personal care fixatives containing bimodal polymer compositions of the present invention can gel at relatively low solids concentrations and/or at relatively high humidity conditions. Without being held to any particular theory, the ability of the present fixatives to gel at relatively low solids concentrations and/or at relatively high humidity conditions is thought to be due to ionic bonding of the bimodal polymer composition's polymer constituents. The present personal care fixatives can also gel quickly, allowing fixatives with dilute concentrations of the bimodal polymer composition to hold keratin-type substrates (e.g., hair) while volatile substances contained therein, such as water or alcohol, evaporate. This quick gelling makes the bimodal polymer compositions of the present invention particularly valuable for producing personal care fixatives that contain low VOC concentrations. In addition, ionic cross-linking is thought to produce good adhesion to keratin-type substrates due to an increase in cohesive energy density provided by polar groups contained in the bimodal polymer compositions.The bimodal polymer compositions of the present invention have acceptable adhesion to keratin-type substances such as hair, skin, fingernails, and toenails. The bimodal compositions described herein can form polymer films with acceptable adhesion in relatively high humidity conditions from personal care fixatives having relatively low concentrations of volatile organic compounds. The polymer films formed from these inventive personal care fixatives can also provide improved film properties, for example, gloss, water resistance, and abrasion resistance, in a variety of personal care applications.The bimodal polymer compositions of the present invention represent a significant advance over mere blends of polymers. Without being held to any particular theory, it is believed that blends of polymers containing anionic and cationic character can have only very limited stability. Further, it is believed that blends of polymers containing anionic and cationic character are limited in their ability to complex ionically. The bimodal polymer compositions of the present invention can have increased stability over polymer blends. In addition, it is believed that the present bimodal polymer compositions contain ionic moieties (e.g., groups having anionic and cationic functionalities) in close proximity to each other, whereby the polymer chains can interact in a manner generally not possible in a blend of polymers.DETAILED DESCRIPTION OF THE INVENTIONA description of preferred embodiments of the invention follows.The present invention is directed to bimodal polymer compositions and personal care fixatives containing bimodal polymer compositions. The present invention includes a bimodal polymer composition having a first polymer with anionic character and a second polymer with cationic character and wherein the polymers form an interpenetrating polymer network.“Bimodal,” as that term is used herein, describes polymer compositions that include two polymers, one having anionic character and one having cationic character.An “interpenetrating polymer network,” as that term is used herein, refers to a polymer structure wherein a monomer has been polymerized in the presence of another polymer. For example, an interpenetrating polymer network is formed by polymerizing a monomer to form the second polymer in the presence of the first polymer. An interpenetrating polymer network contains a polymer homogeneity that generally is not obtained from blending two polymers.In one embodiment, the first polymer, the second polymer, or both the first and the second polymer of the bimodal polymer composition have a molecular weight of at least about 1,000 daltons, for example, ranging from about 1,000 to about 1,000,000 daltons, e.g., ranging from about 1,000 to about 100,000 daltons or ranging from about 2,000 to about 1,000,000 daltons. In one embodiment, the first polymer has a molecular weight ranging from about 1,000 to about 100,000 daltons and the second polymer has a molecular weight ranging from about 2,000 to about 1,000,000 daltons. In another embodiment, the first polymer has a molecular weight ranging from about 2,000 to about 1,000,000 daltons and the second polymer has a molecular weight ranging from about 1,000 to about 100,000 daltons.In one embodiment, the first polymer includes the carboxylate salt monomer unit represented by Chemical Structure I: wherein R is hydrogen or an alkyl group and X+ is a salt-forming cation. An “alkyl group,” as the term is used herein, is a hydrocarbon in a molecule that is bonded to one other group in the molecule through a single covalent bond from one of its carbon atoms. Alkyl groups can be cyclic, branched or unbranched, substituted or unsubstituted, and/or saturated or unsaturated. An alkyl group can have, for example, 1 to about 24 carbons atoms, 1 to about 12 carbon atoms, or about 1 to about 4 carbon atoms, e.g., methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl and tert-butyl.In one embodiment, the first polymer is the polymer contained in a commercially available SYNTRAN® polymer dispersion. For example, the polymer with anionic character can be the polymer contained in, for example, SYNTRAN® 1501, SYNTRAN® 1555, SYNTRAN® 1560, or in blends thereof. SYNTRAN® is a trademark of Interpolymer Corporation (Canton, Mass.).SYNTRAN® 1501, SYNTRAN® 1555, and SYNTRAN® 1560 are water-based dispersions of polymers formed of acrylate monomers of the general chemical formula (—CH2—CH(COOR)—)n. These water-based dispersions of polymers generally contain about 24 to about 25 weight percent of acrylate copolymer and about 74 to about 75 weight percent water. SYNTRAN® 1501 further contains about 1 weight percent sodium alkylpolyethoxyethanol sulfosuccinate and about 1 weight percent sodium lauryl sulfate. SYNTRAN® 1555 further contains about 1 weight percent sodium lauryl sulfate and about 1 weight percent sodium laurylpolyethoxyethanol. SYNTRAN® 1560 further contains about 1 weight percent sodium alkylpolyethoxyethanol sulfosuccinate, about 1 weight percent sodium lauryl sulfate, and about 1 weight percent sodium laurylpolyethoxyethanol.The first polymer of the bimodal polymer composition includes, in one embodiment, at least about 10 weight percent of carboxylate salt monomer units. For example, the first polymer can include about 10 to about 20 or about 12 to about 20 weight percent of carboxylate salt monomer units.In one embodiment, the second polymer includes the cationic monomer unit represented by Chemical Structure II: or a quaternized adduct thereof, wherein R1, R3 and R4 are, independently, hydrogen or an alkyl group and R2 is an alkyl group. In one embodiment, the polymer with cationic character is the polymer contained in a commercially available SYNTRAN® polymer dispersion. For example, the polymer with cationic character can be the polymer contained in, for example, SYNTRAN® FX30. SYNTRAN® FX30 is a water-based dispersion of polymer that includes diethyl amino ethyl methacrylate.In one embodiment, the second polymer (with cationic character) includes an ammonium derivative monomer unit. The ammonium derivative monomer unit can include, but is not limited to, dialkyl amino alkyl acrylates, dialkyl amino alkyl methacrylates, quaternized adducts of dialkyl amino alkyl acrylate, quaternized adducts of dialkyl amino alkyl methacrylate, methacrylamide and esters thereof, vinyl pyrrolidone and vinyl caprolactam. In one embodiment, the ammonium derivative monomer unit is dimethylaminoethyl methacrylate or a quaternized adduct thereof. The second polymer can contain about 10 to about 90 weight percent of the ammonium derivative monomer unit(s). For example, the second polymer can contain about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent ammonium derivative monomer unit(s).In one embodiment, the second polymer includes a water insoluble monomer unit. The water insoluble monomer unit can include, but is not limited to, esters of acrylate, esters of methacrylate, ethers of acrylate, ethers of methacrylate, styrenes, and alpha-methyl styrene. In one embodiment, the water insoluble monomer unit is butyl methacrylate. The second polymer can contain about 10 to about 90 weight percent of the water insoluble monomer unit(s). For example, the second polymer can contain about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent water insoluble monomer unit(s).The second polymer can also include a water soluble monomer unit. For example, water soluble monomer units can include hydroxy functional acrylates, hydroxy functional methacrylates, and alkoxylated adducts thereof such as ethoxylated and/or propoxylated adducts thereof. In one particular embodiment, the second polymer includes a hydroxypropyl methacrylate monomer unit. The second polymer can contain up to about 80 weight percent of the water soluble monomer unit(s). For example, the second polymer can contain 0 to about 70, about 1 to about 50, about 5 to about 25, or about 10 to about 15 weight percent water insoluble monomer unit(s).The second polymer can include a cross-linking or multifunctional monomer unit. For example, the second polymer can contain a multifunctional acrylate, a multifunctional methacrylate, dially phthalate, or any other cross-linking or multifunctional monomer units known in the art. The second polymer can contain up to about 10 weight percent of the cross-linking or multifunctional monomer unit(s). For example, the second polymer can contain 0 to about 10 such as about 1 to about 5 or about 5 to about 10 weight percent cross-linking or multifunctional monomer unit monomer unit(s).In some embodiments, the second polymer can include a monomer unit of anionic functionality such as, but not limited to, acrylic acid, methacrylic acid and esters thereof.In specific embodiments, the second polymer includes an ammonium derivative monomer unit, a water insoluble monomer unit, and optionally, a water soluble monomer unit (e.g., hydroxy functional acrylates, hydroxy functional methacrylates, and alkoxylated adducts thereof) and/or a cross-linking or multifunctional monomer unit. For example, the second polymer can include about 10 to about 90 weight percent of an ammonium derivative monomer unit, about 10 to about 90 weight percent of a water insoluble monomer unit, and optionally, up to about 80 weight percent of a water soluble monomer unit (e.g., hydroxy functional acrylates, hydroxy functional methacrylates, and alkoxylated adducts thereof) and/or up to about 10 weight percent of a cross-linking or multifunctional monomer unit. In one particular embodiment, the second polymer includes about 55 to about 65 weight percent of dialkyl amino alkyl methacrylate, about 25 to about 35 weight percent of alkyl methacrylate, and about 5 to about 15 weight percent of hydroxy functional methacrylate. For example, the second polymer can include about 55 to about 65 weight percent of dimethylaminoethyl methacrylate, about 25 to about 35 weight percent of butyl methacrylate, and about 5 to about 15 weight percent of hydroxypropyl methacrylate.In one embodiment, the first polymer is the polymer contained in SYNTRAN® 1501, SYNTRAN® 1555, SYNTRAN® 1560, or in blends thereof and the second polymer includes an ammonium derivative monomer unit, a water insoluble monomer unit, and optionally, a water soluble monomer unit and/or a cross-linking or multifunctional monomer unit, as described supra. The first polymer (e.g., the polymer of SYNTRAN® 1501, SYNTRAN® 1555, SYNTRAN® 1560, or of blends thereof) can be present in the bimodal polymer composition in a concentration of up about 90 weight percent, for example, about 10 to about 90, about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent. In one embodiment, the first polymer can be present in the bimodal polymer composition in a concentration of about 10 to about 30 weight percent such as about 15 to about 25 weight percent. The second polymer can be present in the bimodal polymer composition in a concentration of up to about 90 weight percent, for example, about 10 to about 90, about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent. In one embodiment, the second polymer can be present in the bimodal polymer composition in a concentration of about 1 to about 30 weight percent such as about 5 to about 20 weight percent.In one embodiment, the first polymer (with anionic character) includes a monomer unit with anionic functionality. The monomer unit with anionic functionality can include, but is not limited to, acidic acrylate monomer, acidic methacrylate monomer, 2-sulfoethylmethacrylate and salts thereof, 2-acrylamido-2-methyl propanesulfonate and salts thereof, crotonic acid, itaonic acid, fumaric acid, acid anhydrides, and half esters of di-carboxylate monomer. The first polymer can contain about 10 to about 90 weight percent of monomer unit(s) with anionic functionality. For example, the second polymer can contain about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent monomer unit(s) with anionic functionality.In one embodiment, the first polymer includes a water insoluble monomer unit. The water insoluble monomer unit can include, but is not limited to, esters of acrylate, esters of methacrylate, ethers of acrylate, ethers of methacrylate, styrenes, and alpha-methyl styrene. The first polymer can contain about 10 to about 90 weight percent of the water insoluble monomer unit(s). For example, the first polymer can contain about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent water insoluble monomer unit(s).The first polymer can also include a water soluble monomer unit. For example, water soluble monomers can include hydroxy functional acrylates, hydroxy functional methacrylates, and alkoxylated adducts thereof such as ethoxylated and/or propoxylated adducts thereof. The first polymer can contain up to about 80 weight percent of the water soluble monomer unit(s). For example, the first polymer can contain 0 to about 70, about 1 to about 50, about 5 to about 25, or about 10 to about 15 weight percent water insoluble monomer unit(s).The first polymer can include a cross-linking or multifunctional monomer unit. For example, the first polymer can contain a multifunctional acrylate, a multifunctional methacrylate, dially phthalate, or any other cross-linking or multifunctional monomer units known in the art. The first polymer can contain up to about 10 weight percent of the cross-linking or multifunctional monomer unit(s). For example, the first polymer can contain 0 to about 10 such as about 1 to about 5 or about 5 to about 10 weight percent cross-linking or multifunctional monomer unit monomer unit(s). In one embodiment, the first polymer also includes a chain modifier. Chain modifiers are known in the art and include, but are not limited to, alcohols and mercaptans.In specific embodiments, the first polymer includes a monomer unit with anionic functionality, a water insoluble monomer unit, and optionally, a water soluble monomer unit (e.g., hydroxy functional acrylates, hydroxy functional methacrylates, and alkoxylated adducts thereof) and/or a cross-linking or multifunctional monomer unit. For example, the first polymer can include about 10 to about 90 weight percent of a monomer unit with anionic functionality, about 10 to about 90 weight percent of a water insoluble monomer unit, and optionally, up to about 80 weight percent of a water soluble monomer unit (e.g., hydroxy functional acrylates, hydroxy functional methacrylates, and alkoxylated adducts thereof) and/or up to about 10 weight percent of a cross-linking or multifunctional monomer unit.In one embodiment, the first polymer includes a monomer unit with anionic functionality, a water insoluble monomer unit, and optionally, a water soluble monomer unit and/or a cross-linking or multifunctional monomer unit, as described supra, and the second polymer is the polymer contained in SYNTRAN® FX30. The first polymer can be present in the bimodal polymer composition in a concentration of up to about 90 weight percent, for example, about 10 to about 90, about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent. In one embodiment, the first polymer can be present in the bimodal polymer composition in a concentration of about 1 to about 30 weight percent such as about 5 to about 20 weight percent. The second polymer (e.g., the polymer of SYNTRAN® FX30) can be present in the bimodal polymer composition in a concentration of up about 90 weight percent, for example, about 10 to about 90, about 20 to about 80, about 30 to about 70, or about 40 to about 60 weight percent. In one embodiment, the second polymer can be present in the bimodal polymer composition in a concentration of about 10 to about 30 weight percent such as about 15 to about 25 weight percent.In some embodiments, substantially all or all or the carboxylate groups of a constituent polymer of the bimodal polymer composition have been neutralized, e.g., as salts. Neutralization can be accomplished by techniques known in the art, for example, carboxylic acid groups of the polymer can be reacted with one or more alkaline reagents. For example, in one embodiment, the first polymer, with anionic alkylpolyethoxyethanol sulfosuccinate, salts of lauryl sulfate, and salts of laurylpolyethoxyethanol. In one embodiment, the concentration of the second polymer in the aqueous medium is about 10 to about 40 weight percent such as about 20 to about 30 weight percent or about 24 to about 25 weight percent. For example, a water-dispersed polymer can be used such as, but not limited to, SYNTRAN® FX30.The reaction of this above-described monomer composition can be moved to complete, or substantially complete, conversion by conventional methods known in the art, e.g., by emulsion polymerization, in water, solvent, or a combination thereof. The bimodal polymer composition thus obtained can be neutralized with an appropriate organic acid or inorganic acid to 0 to about 100 percent of the available amino groups.General techniques associated with emulsion polymerization suitable for forming the vehicle composition of this invention are discussed in D.C. Blackley, Emulsion Polymerization (Wiley, 1975). The teachings of which are incorporated herein by reference in their entirety. Final pH can be adjusted with a suitable cosmetically acceptable base used in the cosmetic industry. If the polymer is associated with other non-cosmetic applications, other more aggressive bases may be incorporated.The present invention also includes the bimodal polymer compositions produced by the methods described herein. In one aspect, the invention includes personal care fixatives that include bimodal polymer compositions produced by the methods described herein.The bimodal polymer compositions of the present invention can be used in personal care products such as personal care fixatives. For example, the bimodal polymer compositions can be used in hair fixatives such as, but not limited to, sprays, gels and mousses. In one embodiment, the invention includes a fixative composition such as a personal care fixative. The personal care fixative can include the bimodal polymer composition and a cosmetically acceptable medium. The cosmetically acceptable medium can include one or more relatively volatile solvents such as water or an alcohol. The personal care fixative can include a total volatile solvent concentration ranging from about 25 to about 95 weight percent or more, e.g., about 30 to about 95, about 50 to about 95, or about 75 to about 95 weight percent total volatile solvents. In one embodiment, the cosmetically acceptable medium is principally water by weight. In some embodiments, the personal care fixative is at least about 20, 30, 40, 50, 60, 70, 80, or at least about 90 weight percent water. In addition, in some embodiments, the cosmetically acceptable medium also includes an alcohol such as ethanol or panthenol. Preferably, the concentration of volatile organic compounds (VOC) such as, for example, alcohol is less than about 55 weight percent. For example the VOC concentration can be less than about 50, 45, 40, 35, 30, 25, 20, 15, 10, or less than 5 weight percent VOC. The personal care fixative can also contain any of the personal care fixative additives known to those of skill in the art. For example, the personal care fixative further can contain at least one component selected from the group consisting of thickening agents, dispersing agents, emulsifiers, emollients, stabilizers, surfactants, fragrances, preservatives, proteins, conditioners, colorants, dyes, plasticizers, neutralizers, glossifiers and propellants.Application of the personal care fixatives described herein to a subject (e.g., to a human subject) typically produces a polymer film. The polymer film can be principally composed of the bimodal polymer composition. In one embodiment, the polymer film is easily removed using normal hygiene procedures. For example, the polymer film can be water soluble or water dispersible. In one embodiment, the polymer film is removeable by water and soap or shampoo.In some embodiments, the bimodal polymer compositions of the present invention can be used in personal care products also containing water based olefin, styrene and/or acrylic polymer systems such as described in, for example, U.S. Provisional Patent Application No. 60/606,985 by Wolff, et al., filed on Sep. 3, 2004, and in U.S. Provisional Patent Application No. 60/627,224 by Wolff, et al., filed on Nov. 12, 2004, the entire teachings of both of which are incorporated herein by reference. For example, in one embodiment, the personal care product can contain an olefin graft polymer such as SYNTRAN® Olefin Graft PC 5208 (Interpolymer Corp., Canton, Mass.). In some embodiments, the personal care product can contain an olefin graft polymer in a concentration of about 10 to about 90 percent by polymer weight and a bimodal polymer composition concentration of about 90 to about 10 percent by polymer weight. For example, the personal care product can contain an olefin graft polymer in a concentration of about 20 to about 80 percent by polymer weight and a bimodal polymer composition concentration of about 80 to about 20 percent by polymer weight.EXEMPLIFICATIONThe invention will now be further and specifically described by the following examples which are not intended to be limiting.Example 1This example describes the production of a bimodal polymer composition.Into a 1000 ml resin flask equipped with an agitator, condensers, and addition ports, 500 grams SYNTRAN® 1501 (containing 25 weight percent non-volatiles) was added. The SYNTRAN® 1501 was heated to 80° C. slowly with a water bath and keeping the flask blanketed with an inert gas. When the temperature was reached, a premix of 40 grams of water and 0.5 gram of ammonium persulfate was slowly added.Immediately following, the following premix was added: 16 grams dimethylaminoethyl methacrylate, 8 grams butyl methacrylate, 3 grams hydroxypropyl methacrylate, 7 grams water, and 0.5 gram C12-C15 alkyl alcohol ethoxylate/10 mole. The reaction was allowed to exotherm and the temperature was kept between about 80° C. and about 85° C. using the water bath. The temperature was held for two hours, then 30 grams water, 0.2 gram ammonium bisulfite (45% solution), and 0.5 gram aqua ammonia (28%) were added. The mixture was then held for an additional hour.Example 2This example describes the production of a bimodal polymer composition.Into a 1000 ml resin flask equipped with an agitator, condensers, and addition ports, 350 grams SYNTRAN® 1501 (containing 25 weight percent non-volatiles) and 104 grams of water was added. The SYNTRAN® 1501 was heated to 60° C. slowly with a water bath and keeping the flask blanketed with an inert gas. A slow, even agitation was maintained while the material was in the flask. When the temperature was reached, a premix of 40 grams of water and 0.5 gram of ammonium persulfate was slowly added.Immediately following, the following premix was added: 25 grams dimethylaminoethyl methacrylate, 30 grams butyl acrylate, 10 grams hydroxyethyl acrylate, 15 grams water, and 1 gram C12-C15 alkyl alcohol ethoxylate/10 mole. The reaction was allowed to exotherm and the temperature was kept between about 80° C. and about 85° C. using the water bath. The temperature was held for two hours, then 40 grams water, 0.2 gram ammonium bisulfite (45% solution), and 0.5 gram aqua ammonia (28%) were added. The mixture was then held for an additional hour.Example 3This example describes the preparation of mousse and gel fixatives.Preparation of FixativesMousse and gel fixatives were prepared having the components listed in Tables 1 and 2. (DOW CORNING® is a trademark of Dow Corning (Midland, Mich.). MACKSTAT® is a trademark of The McIntyre Group Ltd. (University Park, Ill.). BRIJ® is a trademark of ICI Americas, Inc. (Wilmington, Del.).)The bimodal polymer composition used in Mousse Fixative A and the Gel Fixative was produced as described in Example 1. The bimodal polymer composition used in Mousse Fixative B was produced as described in Example 2.TABLE 1Gel FixativeConcentration(weightWeightComponentSupplierpercent)(grams)Phase ADistilled Water72.68218Acritimer 940 (carbomer)Rita Corp. (Woodstock, IL)0.601.80Triethanolamine (TEA) 99%Pride Solvents & Chemical0.621.86Co. (Holtsville, NY)Phase BBimodal Polymer1545CompositionPhase CDistilled Water1030DOW CORNING ® 193Dow Corning0.050.15Fluid (silicon fluid)(Midland, MI)Ritapan DL (panthenol)Rita Corp. (Woodstock, IL)0.100.30Promois WG (hydrolyzedRita Corp.0.050.15wheat protein)(Woodstock, IL)Promois WG-SIGRita Corp.0.050.15(hydrolyzed wheat protein(Woodstock, IL)PG-Propyl Methylsilanediol)MACKSTAT ® DM-LOThe McIntyre Group Ltd.0.401.20(DMDM Hydantoin)(University Park, IL)Phase DBRIJ ® 98 Veg (Oleth-20)Uniqema0.351.05(New Castle, DE)Fragrance #98444Intarome0.10.30(Norwood, NJ)Total:100300 The Gel Fixative, having a composition as shown in Table 1, was prepared by mixing Phase A components. Separately, Phase C and D were mixed. Phases C and D were then warmed and then Phase D was added to Phase C. Phases C and D were then stirred until the mixture was homogeneous. The mixture of Phases C and D were then added to Phase A and stirred. Finally, Phase B was added to the mixture of Phases A, C and D and the resulting mixture was stirred until homogeneous.TABLE 2Mousse Fixatives A and BConcentrationWeightComponentSupplier(weight percent)(grams)Phase ADistilled Water87.95263.85Ritapan DL (panthenol)Rita Corp.0.501.50(Woodstock, IL)DOW CORNING ® 193Dow Corning0.501.50Fluid (silicon fluid)(Midland, MI)Bimodal Polymer1030CompositionMACKSTAT ® DM-LOThe McIntyre Group Ltd.0.401.20(DMDM Hydantoin)(University Park, IL)Promois WG (hydrolyzedRita Corp.0.100.30wheat protein)(Woodstock, IL)Promois WG-SIGRita Corp.0.100.30(hydrolyzed wheat protein(Woodstock, IL)PG-PropylMethylsilanediol)Phase BPEG-40 HydrogenatedLipo Chemicals, Inc.0.050.15Castor Oil(Paterson, NJ)Fragrance #98444Intarome0.100.30(Norwood, NJ)Polysorbate 20 (PEG-10Lipo Chemicals, Inc.0.300.90Sorbitan Laurate)(Paterson, NJ)Total:100300 Mousse Fixatives A and B, having compositions as shown in Table 2, were prepared by adding together Phase A components in the listed order followed by stirring until Phase A was homogeneous. Phase B was then prepared by mixing the listed components. Phase B was added to Phase A and the mixture was stirred until homogeneous.Evaluation of Fixative CompositionsSeveral 24 cm tresses of European Brown hair (from same lot of hair) were prepared. Each tress weighed about 6.5 grams. Each tress was washed thoroughly with a strong detergent to remove any residual materials and excess water was removed.Mousse ApplicationAbout 0.5 grams of mousse fixative was applied to each of a set of tresses and was gently spread through the hair. The tips of the hair were then rolled about a ¾ inch to 1 inch curling rod. The tresses were clamped to the curling rods and dried for about five days in air at room temperature.Gel ApplicationAbout 0.8 grams of the gel fixative was applied to each of a set of tresses and was gently spread through the tresses. Each tress was then combed through tress once with fine end of a comb to distribute the gel fixative composition. The tips of the hair were then rolled about a ¾ inch to 1 inch curling rod. The tresses were clamped to the curling rods and dried for about 5 days in air at room temperature.The dry hair was removed from the curling rods and hung on calibrated boards. The length of the curl was measured. The curled hair was placed in a humidity chamber and position of bottom of curl was noted at prescribed time intervals. The humidity chamber had an average temperature of 82.7° F. and an average humidity of 96.7 percent relative humidity. Table 3 shows the percent curl retention for the Gel Fixative, Mousse Fixatives A and B, and 3 comparative fixatives (CARBOPOL® Polymer Gel, PVP K90 Mousse, and PVP K30 Mousse). The comparative fixatives were prepared by substituting a CARBOPOL® polymer, polyvinyl pyrrlidone (PVP) K90 and PVP K30, respectively, for the bimodal polymer composition in the gel and mousse formulations of Tables 1 and 2. CARBOPOL® is a trademark of Noveon IP Holdings Corp. (Cleveland, Ohio). The PVP K90 and PVP K30 were obtained from ISP Technologies, Inc. (Wayne, N.J.).TABLE 3Hair Curl Retention Using Various FixativesGelCARBOPOL ®PVP K90MousePVP K30MouseFixativePolymer GelMousseFixative AMousseFixative BInitial4.44.54.04.03.74.5CurlLength(cm)Final6.515.312.14.716.06.5CurlLength(cm)Time(hours)Curl Retention Percentage:196.997.496.010081.392.8294.466.796.51006492.3389.848.773.596.546.889.7489.844.66596.541.989.7589.344.659.596.539.489.7 Example 4This example describes three hair fixative compositions.Pump Composition A—(Crisp Character) (5% non-volatiles)bimodal polymer composition20grams (g)water24.6gamino methyl propanol (AMP)0.4gethyl alcohol, denatured (SDA-40)55g The water, SDA-40 and AMP are mixed and the bimodal polymer composition is slowly added with good agitation until dispersed.Pump Composition B—(Flexible Hold) (5% non-volatiles)bimodal polymer composition20grams (g)water23.3gamino methyl propanol (AMP)0.5gCrovol PK-700.4g(Croda, Inc., Parsippany, NJ)DOW CORNING ® 190 Fluid0.4g(Dow Corning Midland, MI)1,3-butylene glycol0.4gethyl alcohol, denatured (SDA-40)55.0g All ingredients except for the bimodal polymer composition are mixed with good agitation. The bimodal polymer composition is then added to the mixture with continued agitation.Pump Composition C—(Low Static) (5% non-volatiles)bimodal polymer composition14.4grams (g)water21.9gamino methyl propanol (AMP)0.5gCrovol PK-700.8g(Croda, Inc., Parsippany, NJ)DOW CORNING ® 190 Fluid1.2g(Dow Corning Midland, MI)panthenol0.8gethyl alcohol, denatured (SDA-40)55gStatran 17051.2g(Interpolymer Corp, Canton, MA) All of the ingredients are mixed with good agitation except the bimodal polymer composition and Statran 1705. The Statran 1705 is slowly added and allowed to mix. After the Statran 1705 is dispersed, the bimodal polymer composition is slowly added and agitated until dispersed.Example 5This example describes the production of a bimodal polymer composition.Into a 1000 ml resin flask equipped with an agitator, condensers, and addition ports, the following was added:Water293grams (g)Sodium lauryl sulfate (30%)2.4gSodium Alkylpolyethoxyethanol sulfosuccinate1.8g This was heated via water bath and under inert gas to 80° C. With good agitation the following was added over a one hour period: Butyl Acrylate11.6gEthyl Acrylate46.7gMethyl Methacryalte29.2gMethacrylic Acid22.1gStyrene7.0g After the mixture had agitated for 15 minutes, a premix of 0.5 grams of ammonium persulfate in 40 grams of water was added followed by 0.2 grams of ammonium bisufite solution (45%). The reaction was allowed to proceed and the temperature was maintained below 80° C. The mixture was held for two hours at the peak temperature. The following was added at this time: Water26gAqua Ammonia 28%13g This was mixed until it became uniform in appearance. A second mixture of ammonium persulfate, 0.5 grams in 40 grams of water was added and immediately followed with: Dimethylaminoethyl methacrylate15.5gEthyl Acrylate7.8gMethyl Methacrylate15.5g The mixture was allowed to exotherm and was held between 80 and 85° C. for two hours. The mixture was then cooled and filtered. Example 6This example describes the preparation of a Texturizing Shampoo.A Texturizing Shampoo was prepared having the components listed in Table 4. DISSOLVINE® is a trademark of Akzo Nobel (Chicago, Ill.), RITAPAN is a trademark of RITA Corp. (Woodstock, Ill.), MACKADET® is a trademark of The McIntyre Group Ltd. (University Park, Ill.), GERMALL® is a trademark of the ISP Corp. (Wayne, N.J.).TABLE 4Texturizing ShampooConcentration(weightWeightComponentSupplierpercent)(grams)Phase ADistilled Water42.93128.79DISSOLVINE ®Akzo Nobel0.100.30Na2S(Chicago, IL)Ritapan DLRita Corp.0.501.50(Woodstock, IL)Phase BSYNTRAN ® OlefinInterpolymer Corp.8.0024.00Graft PC 5208(Canton, MA)SYNTRAN ®Interpolymer Corp.2.006.00Bimodal PC 5100(Canton, MA)Phase CMACKADET ® APBThe McIntyre Group45.00135.00Ltd.(University Park, IL)Phase DGERMALL ® PlusISP Corp.0.351.05(Wayne, NJ)FragranceCarrubba Inc.0.300.90(Milford, CT)Citric Acid0.020.06Sodium Chloride0.802.40Sodium Chloride0.30(viscosity adjustment)Total:100300 The Texturizing Shampoo, having a composition as shown in Table 4, was prepared by heating water to 45° C. to 50° C. and mixing Phase A components. Separately Phase B was added at 45° C. to Phase A. Then, Phase C was added at 45° C. Finally, Phase D was added to the mixture of Phases A, B and C at 35° C. and the resulting mixture was stirred until homogenous.Example 7This example describes the preparation of a 35% VOC Hair Spray.The 35% VOC Hair Spray was prepared having the components listed in Table 5. AMP-95® is a trademark of Angus Corp. (Chicago, Ill.), DOW CORNING® is a trademark of Dow Corning (Midland, Mich.), CROVOL is a trademark of Croda Inc. (Parsippany, N.J.).TABLE 5Low VOC Hair SprayConcentration(weightWeightComponentSupplierpercent)(grams)Phase ASDA-40B 20070.00210.00ProofAMP-95 ®Angus Corp. (Chicago, IL)0.501.50DC 193 FluidDow Corning (Midland,0.100.30MI)Crovol PK-70Croda Inc. (Parsippany, NJ)0.050.15Phase BSYNTRAN ®Interpolymer Corp.10.0030.00KL-219C(Canton, MA)SYNTRAN ®Interpolymer Corp.19.3558.05EX 107-21-3(Canton, MA)AMP-95 ®Angus Corp. (Chicago, IL)Sufficient quantity to adjustpH to 8.5-8.7Total (100% Concentration):100300Hair Spray Formulation:35% VOC Concentrate50%Propellant50% The 35% VOC Hair Spray, having a composition as shown in Table 5, was prepared by mixing Phase A components and stirring between each component until homogenous. Phase B ingredients were separately added as listed, stirring between each ingredient until homogenous. Phase B was added to Phase A and the mixture was stirred until homogenous.The low VOC hair spray had the following average particle size:Valve specification: 020 MB Conclave Kosmos, o18 S90 Stem, 025×013 VT S90Average Particle Size: 30.18 micronsWhile this invention has been particularly shown and described with references to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims. <- Previous Patent (Ampholytic anionic c...) | Next Patent (Serum albumin compos...) ->