Source: http://www.google.de/patents/US3994851
Timestamp: 2013-05-25 01:59:51
Document Index: 305060928

Matched Legal Cases: ['arts 20', 'arts 38', 'arts 20', 'arts 20', 'arts 20', 'arts 20', 'arts 20']

Patent US3994851 - High solids polyester coating composition - Google PatenteSuche Bilder Maps Play YouTube News Gmail Drive Mehr » Erweiterte Patentsuche | Webprotokoll | Anmelden Erweiterte Patentsuche PatenteHigh solids coating compositions can be formulated from an ester-containing polyol having a molecular weight of less than about 850 and a viscosity of less than about 60 poises, and an amine-aldehyde crosslinking agent. Such compositions aid in environmental control problems as well as having good adhesion,...http://www.google.de/patents/US3994851?utm_source=gb-gplus-sharePatent US3994851 - High solids polyester coating composition Ver�ffentlichungsnummerUS3994851 APublikationstypErteilung Anmeldenummer05/301,034 Ver�ffentlichungsdatum30. Nov. 1976Eingetragen26. Okt. 1972 Priorit�tsdatum26. Okt. 1972 ErfinderWen-Hsuan ChangUrspr�nglich Bevollm�chtigterPpg Industries, Inc. US-Klassifikation524/598525/163525/160428/423.1525/157525/519525/58525/162525/515525/443Internationale KlassifikationC09D161/20C09D167/00 UnternehmensklassifikationC09D167/00C09D161/20 Europ�ische KlassifikationC09D167/00C09D161/20ReferenzenPatentzitate (3) Referenziert von (58)Externe LinksUSPTO USPTO-Zuordnung EspacenetHigh solids polyester coating compositionUS 3994851 A Zusammenfassung High solids coating compositions can be formulated from an ester-containing polyol having a molecular weight of less than about 850 and a viscosity of less than about 60 poises, and an amine-aldehyde crosslinking agent. Such compositions aid in environmental control problems as well as having good adhesion, flexibility, hardness, stain resistance, detergent resistance, solvent resistance and the like.
I claim as my invention: 1. A coating composition having a solids content of at least 70 percent by weight based on weight of said coating composition comprising: a. from about 30 to about 85 percent based on weight of (a) and (b) of an ester-containing polyol having a molecular weight of less than about 850 and a viscosity of less than about 60 poises; wherein said ester-containing polyol is comprised of an aliphatic non-alicyclic carboxylic acid and a polyol wherein said acid may be in the form of anhydride or a lactone b. from about 15 to about 70 percent based on weight of (a) and (b) of an amine-aldehyde crosslinking agent.
16. A coating composition having a solids content of at least 70 percent by weight based on weight of said coating composition comprising: a. from about 30 to about 85 percent based on weight of (a) and (b) of neopentyl glycol adipate; and b. from about 15 to about 70 percent based on weight of (a) and (b) of a mixture of benzoguanamine resin and condensation product of an aldehyde and a melamine resin.
17. A method of coating a substrate with a coating composition having a solids content of at least 70 percent by weight based on weight of said coating composition which comprises the steps of: a. admixing 1. from about 30 to about 85 percent based on weight of (1) and (2) of an ester-containing polyol having a molecular weight of less than about 850 and a viscosity of less than about 60 poises; wherein said ester-containing polyol is comprised of an aliphatic non-alicyclic carboxylic acid and a polyol wherein said acid may be in the form of an anhydride or a lactone, with 2. from about 15 to about 70 percent based on weight of (1) and (2) of an amine-aldehyde crosslinking agent, with 3. from 0 to about 5 percent by weight based on the total solids content of (1) and (2) of a catalyst. b. applying said composition to said substrate; and c. curing said coating.
BACKGROUND OF THE INVENTION In recent years the coatings industry has become increasingly interested in high solids coatings. That is, coatings which can be applied by conventional techniques such as spraying, dipping, roll coating, etc., without the use of much volatile solvents or dispersants. The use of high solids coatings presents several advantages, including high film build per application, economy of materials since normally the solvents are lost to the ambient surroundings, and the diminuation of environmental control problems such as treatment of plant effluents to capture or destroy volatile pollutants.
DESCRIPTION OF THE INVENTION Now it has been discovered that a high solids or low solvent coating composition can be formulated from an ester-containing polyol and an amine-aldehyde crosslinking agent. More particularly, the invention herein provides for high solids coating compositions having a solids content of at least 70 percent by weight, based on weight of total coating composition, comprising (a) from about 30 to about 85 percent by weight based on (a) and (b) of an ester-containing polyol having a molecular weight of less than 850 and a viscosity of less than about 60 poises, and (b) from about 15 to about 70 percent by weight based on (a) and (b) of an amine-aldehyde crosslinking agent.
Particularly useful polyols include diols and triols. Generally, the diol component includes glycols of the formula HO(CH.sub.2).sub.n OH wherein n equals 2 to 10, glycols of the formulas HO(CH.sub.2 CH.sub.2 O).sub.n H and HO[CH(CH.sub.3)CH.sub.2 O].sub.n H in which n equals 1 to 10, such as ethylene glycol, diethylene glycol, and the like, 2,2-dimethyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, N-methyl and N-ethyl diethanolamines. Others include 4,4'-methylenebiscyclohexanol, 4,4'-isopropylidenebiscyclohexanol and various xylenediols, hydroxymethylphenylethyl alcohols, hydroxymethyl-phenylpropanols, phenylenediethanols, phenylenedipropanols and heterocyclic diols such as 1,4-piperazine diethanol and the like. Some of the preferred diols include 2-methyl-2-ethyl-1,3-propanediol, 2-ethyl-1,3-hexanediol and 2,2-dimethyl-3-hydroxypropyl, 2,2-dimethyl-3-hydroxypropionate and the like. The preferred triols (tri-functional polyols) are trimethylolpropane; trimethylolethane, 1,2,3-propanetriol; 1,2,4-butanetriol; 1,2,6-hexanetriol, and the like.
Extender pigments, well known in the art may also be employed. Examples of such pigments include whiting (CaCO.sub.3), gypsum (CaSO.sub.4), magnesium silicate (3MgO . SiO.sub.2 . H.sub.2 O), magnesium carbonate (MgCO.sub.3), china clays (Al.sub.2 O.sub.3 . 2SiO.sub.2 . 2H.sub.2 O), mica (K.sub.2 O . 3Al.sub.2 O.sub.3 . 6SiO.sub.2 . 2H.sub.2 O), silica (SiO.sub.2), diatomaceous silica, barium sulfate (BaSO.sub.4), barium carbonate (BaCO.sub.3), and aluminumhydrate (Al[OH].sub.3). It is understood that many other known extenders may be employed in accordance with the practice of this invention and the pigments indicated above are merely exemplary of the many which are known in the art.
It is also possible to incorporate various known colored pigments into the films of this invention. Some red pigments which may be used in accordance with the practice of this invention are Indian red (Fe.sub.2 O.sub.3), tuscan red, venetian red, red lead (Pb.sub.3 O.sub.4), orange mineral, English vermillion (HgS), American vermillion (chrome red, scarlet lead chromate which is a basic chromate of lead), and lakes which are formed by combination of the coloring matter of certain dyes with inorganic carriers, such as BaSO.sub.4, CaSO.sub.3, or clay. Among the most important lakes are the vermillions and scarlets made from para red, and from alizarin. Examples of blue pigments which may be incorporated in the films of this invention are phthalo-cyanine blue, Prussian blue (Fe[Fe(CN).sub.6 ].sub.3) being the approximate empirical formula, ultramarine, cobalt blue, sublimed blue lead consisting mainly of PbSO.sub.4 and PbO with a minor amount of PbS, PbSO.sub.3 and ZnO. Some of the preferred green pigments are phthalocyanine green, chrome green and chrome oxide green. It is also possible to incorporate some of the well known yellow pigments such as chrome yellows, yellow ochers and raw siennas. It is also contemplated by employing the practice of this invention to incorporate brown pigments such as burnt sienna, raw umber, burnt umber and Vandyke brown, otherwise known as Cassel earth or Cologne earth which is a natural pigment of a carbonaceous nature and is distinguished by its solubility in dilute alkali.
The baking schedule employed herein can vary depending on the amount of crosslinking agent utilized, the resins employed, the amount and type of acid catalyst used; but generally schedules of from about 170 for 30 minutes to about 500
EXAMPLE I This is an example of a high solids coating containing two crosslinking agents.
This example had a pigment to binder ratio of 0.95 to 1 The pigment employed was titanium dioxide.
This composition was applied at 90 percent solids cut in a solvent mixture of butanol and xylene. A coating of the composition was applied to a steel panel. The composition was heated to about 110 spray applied by means of an electrostatic spray disc and subsequently baked for 20 minutes at 350
EXAMPLE II A useful coating composition was formulated from the following components:
which was cut in a solvent mixture comprising 25 percent butanol, 50 percent Solvesso 150 (high boiling aromatic hydrocarbon solvent - b.p. range 185
EXAMPLE III This is an example of a high solids coating composition comprising:
EXAMPLE IV A useful coating was formulated from the following components:
EXAMPLE V A useful coating composition may be formulated by employing polyvinyl butyral in the following manner:
EXAMPLE VI A useful composition was formulated by employing polyvinyl chloride in the following manner
EXAMPLE VII A useful composition containing cellulose acetate butyrate was prepared as follows:
EXAMPLE VIII A useful coating composition was formulated by employing a polyester additive alone with an ester-containing polyol.
Coating compositions of Examples I - VIII were made by drawing down a 3 mil thick wet film on steel panels and thereafter baking at 250 1/2 hours. The coatings so provided were tough and had a pleasing appearance.
EXAMPLE IX In this example, a comparison was made between an ester-containing polyol prepared from hexahydroterephthalic acid and adipic acid having about the same molecular weight (590).
EXAMPLE X The following ester-containing polyols were evaluated for solubility and viscosity.
TABLE II__________________________________________________________________________Compositions   A        B          C      D        E        F__________________________________________________________________________Water   13 parts water            18 parts water                     18 parts water                              53 parts water                                       53 parts water                                                53 parts waterSolubility   in 100 parts            in 100 parts                     in 100 parts                              in 100 parts                                       in 100 parts                                                in 100 partsand Viscosity   Composition A-            Composition B-                     Composition C-                              Composition D-                                       Composition                                                Composition F-   6 poises 0.90-0.95 poises                     1.52 poises                              0.5 poises                                       &amp;lt; 0.5 poises                                                &amp;lt; 0.5 poises20 % Ethanol   18 parts 20 parts 38 parts &amp;gt; 100 parts                                       &amp;gt; 100 parts                                                &amp;gt; 100 partsin Water   solution in 100            solution in 100                     solution in 100                              solution in 100                                       solution in                                                solution in 100Solubility   parts Composition            parts Composition                     parts Composition                              parts Composition                                       parts Composition                                                parts Compositionand Viscosity   A - 3.3 poises            B - 0.65 poises                     C - 0.90-0.95                              D - &amp;lt; 0.5 poises                                       E - &amp;lt; 0.5 poises                                                F - &amp;lt; 0.5 poises                     poisesSolubility   20 parts 20 parts 20 parts 20 parts 20 parts 20 partsand Viscosity   ethanol in 80            ethanol in 80                     ethanol in 80                              ethanol in 80                                       ethanol in 80                                                ethanol in 80in Ethanol   parts Composi-            parts Composi-                     parts Composi-                              parts Composi-                                       parts Composi-                                                parts Composi-   tion A-  tion B-  tion C-  tion D-  tion E-  tion F-   0.90-0.95 poises            &amp;lt; 0.5 poises                     0.5 poises                              &amp;lt; 3.4 poises                                       0.5 poises                                                1.25 poisesViscosity in   61 poises            3.4 poises                     20 poises                              3.2 poises                                       3.4 poises                                                17.6 poisesthe absence                                 (solidifies atof Solvent                                  room temperature                                       on standing)__________________________________________________________________________
EXAMPLE XI In this example, Compositions A and B were compared for hardness and impact resistance.
EXAMPLES XII - XXXVII Listed below are examples of the various molar ratios of the various acids and polyols that may be employed to provide the ester-containing polyol of the present invention.
Patentzitate Zitiertes PatentEingetragen Ver�ffentlichungsdatum Antragsteller TitelUS342597418. M�rz 19644. Febr. 1969Ppg Ind. Inc.Alkyd resin-aminoplast resin coating composition for glassUS34494673. Juni 196510. Juni 1969Union Carbide Corporation,Hydroxyl terminated polyester oligomersUS35446568. Dez. 19671. Dez. 1970Chemische Werke Huels Ag.Hard,elastic,and impact-resistant coatings Referenziert von Zitiert von PatentEingetragen Ver�ffentlichungsdatum Antragsteller TitelUS40495999. Jan. 197620. Sept. 1977Grow Chemical CorporationHigh solids polyesters capable of dissolving in an organic solventUS410160326. Mai 197618. Juli 1978Union Carbide CorporationHigh solids coating compositionsUS411976220. Okt. 197610. Okt. 1978Monsanto CompanyCoating compositions comprising alkoxymethylaminotriazines and polyolsUS416302920. Apr. 197831. Juli 1979Union Carbide CorporationHigh solids coating compositionsUS416534520. Apr. 197821. Aug. 1979Union Carbide CorporationHigh solids coating compositionsUS421835521. Juli 197819. Aug. 1980Ppg Industries, Inc.Low organic solvent-containing polyester coating compositionsUS431491826. Juni 19809. Febr. 1982Ppg Industries, Inc.Coating compositions containing organic alcoholic reactive diluentsUS43169407. Aug. 198023. Febr. 1982E. I. Du Pont De Nemours And CompanyHigh-solids polyester and aminoplast coating compositionUS433837913. Febr. 19816. Juli 1982E. I. Du Pont De Nemours And CompanyHigh-solids thermosetting enamel coating compositionUS43979898. Febr. 19829. Aug. 1983E. I. Du Pont De Nemours & Co.High solids coating composition of an acrylic polymer a polyester polyol and an alkylated melamine crosslinking agentUS440309328. Sept. 19826. Sept. 1983Ppg Industries, Inc.PolyestersUS441066729. Jan. 198218. Okt. 1983Ppg Industries, Inc.Elastomeric coating compositionsUS441066829. Jan. 198218. Okt. 1983Ppg Industries, Inc.Elastomeric coating compositionsUS441940729. Jan. 19826. Dez. 1983Ppg Industries, Inc.Elastomeric coating compositionsUS450186330. Dez. 198326. Febr. 1985Nippon Paint Co., Ltd.Polycarboxylic acid resinous composition, its preparation and coating composition containing the sameUS453513212. Dez. 198313. Aug. 1985Ppg Industries, Inc.Thermosetting high solids solvent-based polyester polyol coating compositionsUS455293617. Aug. 198412. Nov. 1985General Electric CompanyWeatherable abrasion resistant etherified aminoplast derived coating for plastic substratesUS459802112. Aug. 19851. Juli 1986General Electric CompanyWeatherable abrasion resistant etherified aminoplast derived coating for plastic substratesUS471465718. Apr. 198522. Dez. 1987General Electric CompanyMelamine based protective coatings for thermoplastic substratesUS474042629. Aug. 198626. Apr. 1988E. I. Du Pont De Nemours And CompanyConductive primer compositionUS474365520. Apr. 198710. Mai 1988Nl Chemicals, Inc.Narrow molecular weight polyester oligomers and method of preparationUS475111223. Sept. 198714. Juni 1988Union Carbide CorporationHigh solids coating compositions containing polycaprolactone polyol reactive diluentsUS478970623. M�rz 19886. Dez. 1988Nl Chemicals, Inc.Narrow molecular weight polyester oligomers and method of preparationUS502314125. Juli 198911. Juni 1991E. I. Du Pont De Nemours And CompanyHigh solids primer compositionUS504319221. M�rz 198827. Aug. 1991North Dakota State UniversityPolymeric vehicle for coatingUS521804526. M�rz 19918. Juni 1993North Dakota State UniversityCoating binders comprising liquid crystalline enhanced polymersUS522332326. Jan. 199029. Juni 1993Basf CorporationProcess for coating finish foils and endless edgesUS523500618. Sept. 199010. Aug. 1993North Dakota State UniversityMesogens and polymers with mesogensUS537854625. M�rz 19933. Jan. 1995North Dakota State UniversityPolymeric vehicle for coatingsUS543974722. Nov. 19938. Aug. 1995Ppg Industries, Inc.Anodized aluminum having protective coatingUS548792722. Febr. 199430. Jan. 1996Revlon Consumer Products CorporationDecorating method and productsUS551044719. Okt. 199423. Apr. 1996North Dakota State UniversityPolymeric vehicle for coatingsUS554347518. M�rz 19926. Aug. 1996North Dakota State UniversityCompounds with liquid crystalline properties and coating binders based thereonUS55434765. Juni 19956. Aug. 1996North Dakota State UniversityCompounds with liquid crystalline properties and coating binders based thereonUS557135922. Febr. 19945. Nov. 1996Revlon Consumer Products CorporationRadiation curable pigmented compositionsUS55874287. Juni 199524. Dez. 1996Eastern Michigan UniversityPolymeric vehicle effective for providing solventless coating compositionsUS56102637. Juni 199511. M�rz 1997Eastern Michigan UniversityWater thinned polymeric vehicle for coating compositions with low amounts of volatile oragnic compoundsUS56418547. Juni 199524. Juni 1997Eastern Michigan UniversityPolymeric vehicle for high solids coatingsUS566323319. Juni 19952. Sept. 1997Herberts Gesellschaft Mit Beschrankter HaftungCoating agents and the use thereof in processes for the production of multi-layer coatingsUS56678562. Dez. 199416. Sept. 1997Revlon Consumer Products CorporationRadiation curable pigmented compositions and decorated substratesUS56773955. Juni 199514. Okt. 1997North Dakota State UniversityCompounds with liquid crystalline properties and coating binders based thereonUS57008825. Juni 199523. Dez. 1997North Dakota State UniversityCompounds with liquid crystalline properties and coating binders based thereonUS570804730. Dez. 199413. Jan. 1998Revlon Consumer Products CorporationDecorating method and productsUS58177221. Apr. 19966. Okt. 1998Exxon Chemical Patents Inc.Low viscosity, high solids polyesterdiols and compositions containing sameUS591056310. Nov. 19978. Juni 1999Exxon Chemical Patents, Inc.Water thinned polymeric vehicle for coating compositions with low amounts of volatile organic compoundsUS592247422. Jan. 199813. Juli 1999Eastman Chemical CompanySolventless coatings based on low-viscosity polyestersUS595555010. Nov. 199721. Sept. 1999Eastern Michigan UniversityPolymeric vehicle for providing solventless coating compositionsUS596908510. Nov. 199719. Okt. 1999Exxon Chemical Patents, Inc.Polymeric vehicle for high solids coatingsUS597670627. Juli 19982. Nov. 1999Exxon Chemical Patents Inc.Low viscosity, high solids polyesterdiols and compositions containing sameUS65693865. Okt. 200027. Mai 2003Ko Jong HoProcess for providing a titanium dioxide layer on a material that contains a light absorbing substance and the product so formedUS69746313. M�rz 200313. Dez. 2005Valspar Sourcing, Inc.High-reflectivity polyester coatingUS724450625. Aug. 200517. Juli 2007Valspar Sourcing, Inc.High-reflectivity polyester coatingUS739359113. Juli 20071. Juli 2008Valspar Sourcing, Inc.High-reflectivity polyester coatingEP0164753A212. Juni 198518. Dez. 1985HENKEL CORPORATION (a Delaware corp.)High solids coating composition based on fatty polyolsWO1995019997A124. Jan. 199527. Juli 1995Eastern Michigan UniversityPolymeric vehicle effective for providing solventless coating compositionsWO1995020004A124. Jan. 199527. Juli 1995Eastern Michigan UniversityPolymeric vehicle for high solids coatingsWO1996023034A124. Jan. 19961. Aug. 1996Eastern Michigan UniversityPolymeric vehicle for high solids coatingsWO1996023035A124. Jan. 19961. Aug. 1996Eastern Michigan UniversityPolymeric vehicle effective for providing solventless coating compositionsDrehenOriginalbildGoogle-Startseite - Sitemap - USPTO-Bulk-Downloads - Datenschutzerkl�rung - Nutzungsbedingungen - �ber Google Patente - Feedback gebenDaten bereitgestellt von IFI CLAIMS Patent Services.© 2012 Google