Source: https://patents.google.com/patent/US20090143535
Timestamp: 2018-03-17 04:48:36
Document Index: 593810295

Matched Legal Cases: ['Application No. 60', 'arts 12', 'arts 1', 'arts 1', 'arts 12', 'arts 0', 'arts 1', 'arts 1', 'arts 1', 'arts 0']

US20090143535A1 - Impact modifier composition, an impact resistant composition, method of producing the same, and articles made therefrom - Google Patents
US20090143535A1
US20090143535A1 US12277401 US27740108A US20090143535A1 US 20090143535 A1 US20090143535 A1 US 20090143535A1 US 12277401 US12277401 US 12277401 US 27740108 A US27740108 A US 27740108A US 20090143535 A1 US20090143535 A1 US 20090143535A1
US12277401
The instant invention is an impact modifier composition, an impact resistant composition, method of producing the same, and articles made therefrom. The impact modifier composition comprises (a) less than 30 percent by weight of high-density polyethylene, based on the weight of the impact modifier composition; and (b) at least 70 percent by weight of chlorinated polyethylene, based on the weight of the impact modifier composition. The impact resistant composition comprises (1) at least 85 percent by weight of poly(vinyl chloride), based on the weight of the impact resistant composition; and (2) less than 10 percent by weight of an impact modifier composition, based on the weight of the impact resistant composition, comprising; (a) less than 30 percent by weight of high-density polyethylene, based on the weight of the impact modifier composition; and (b) at least 70 percent by weight of chlorinated polyethylene, based on the weight of the impact modifier composition; wherein the impact resistant composition has an instrumented dart drop impact of greater than 0.90 inch-pounds per mil at −10° C.
This application is a non-provisional application claiming priority from the U.S. Provisional Patent Application No. 60/990,927, filed on Nov. 29, 2007, entitled “IMPACT MODIFIER COMPOSITION, AN IMPACT RESISTANT COMPOSITION, METHOD OF PRODUCING THE SAME, AND ARTICLES MADE THEREFROM,” the teachings of which are incorporated by reference herein, as if reproduced in full hereinbelow.
In an alternative embodiment, the instant invention further provides an impact resistant composition comprising (I) at least 85 percent by weight of poly(vinyl chloride), based on the weight of the impact resistant composition; and (2) less than 10 percent by weight of an impact modifier composition, based on the weight of the impact resistant composition, comprising; (a) less than 30 percent by weight of high-density polyethylene, based on the weight of the impact modifier composition; and (b) at least 70 percent by weight of chlorinated polyethylene, based on the weight of the impact modifier composition; wherein the impact resistant composition has an instrumented dart drop impact of greater than 0.90 inch-pounds per mil at −10° C.
The high-density polyethylene may be an ethylene homopolymer or an ethylene copolymer. The high-density polyethylene may have a density in the range of 0.940 to 0.970 g/cm3. All individual values and subranges from 0.940 to 0.970 g/cm3 are included herein and disclosed herein; for example, the density of the high-density polyethylene may be from a lower limit of 0.940, 0.943, 0.945, 9.47, or 0.950 g/cm3 to an upper limit of 0.955, 0.960, 0.963, 0.965, or 0.970 g/cm3. The high-density polyethylene may have a melt index (I10) of less than 100 g/10 minutes. All individual values and subranges from less than 100 g/10 minutes are included herein and disclosed herein; for example, the melt index (I10) can be from a lower limit of 0.5, 1.0, 1.5, 2.0, 5.0, 10.0, 15.0, or 20 g/10 minutes to an upper limit of 0.7, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 15.0, 20, 50, or 100 g/10 minutes. For example, the high-density polyethylene may have a melt index (I10) in the range of 0.5 to 100 g/10 minutes; or in the alternative, the high-density polyethylene may have a melt index (I10) in the range of 0.5 to 50 g/10 minutes; or in the alternative, the high-density polyethylene may have a melt index (I10) in the range of 0.5 to 20 g/10 minutes; or in the alternative, the high-density polyethylene may have a melt index (I10) in the range of 0.5 to 10 g/10 minutes; or in the alternative, the high-density polyethylene may have a melt index (I10) in the range of 0.5 to 2.5 g/10 minutes; or in the alternative, the high-density polyethylene may have a melt index (I10) in the range of 0.5 to 2.5 g/10 minutes.
The alpha-olefin comonomers typically have no more than 20 carbon atoms. For example, the alpha-olefin comonomers may preferably have 3 to 10 carbon atoms, and more preferably 3 to 8 carbon atoms. Exemplary alpha-olefin comonomers include, but are not limited to, propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, and 4-methyl-1-pentene. The alpha-olefin comonomers may preferably be selected from the group consisting of propylene, 1-butene, 1-hexene, and 1-octene, and more preferably from the group consisting of 1-hexene and I-octene.
Representative chlorinated and chlorosulfonated ethylene polymers include (a) chlorinated and chlorosulfonated homopolymers of ethylene and (b) chlorinated and chlorosulfonated copolymers of ethylene and at least one or more ethylenically unsaturated monomer selected from the group consisting of C3 to C10 alpha-olefin comonomer; C1 to C12 alkyl esters of C3 to C20 monocarboxylic acids; unsaturated C3 to C10 mono- or dicarboxylic acids; anhydrides of unsaturated C4 to C8 dicarboxylic acids; and vinyl esters of saturated C2 to C1-8, carboxylic acids. Chlorinated and chlorosulfonated graft copolymers are included as well. Specific examples of suitable polymers include chlorinated polyethylene; chlorosulfonated polyethylene; chlorinated ethylene vinyl acetate copolymers; chlorosulfonated ethylene vinyl acetate copolymers; chlorinated ethylene acrylic acid copolymers; chlorosulfonated ethylene acrylic acid copolymers; chlorinated ethylene methacrylic acid copolymers; chlorosulfonated ethylene methacrylic acid copolymers; chlorinated ethylene methyl acrylate copolymers; chlorinated ethylene methyl methacrylate copolymers; chlorinated ethylene n-butyl methacrylate copolymers; chlorinated ethylene glycidyl methacrylate copolymers; chlorinated graft copolymers of ethylene and maleic acid anhydride; chlorinated copolymers of ethylene with propylene, butene, 3-methyl-1-pentene, or octene and chlorosulfonated copolymers of ethylene with propylene, butene, 3-methyl-1-pentene or octene. The copolymers may be dipolymers, terpolymers, or higher order copolymers. Preferred chlorinated olefin polymers are-chlorinated polyethylene and chlorinated copolymers of ethylene vinyl acetate.
The method for producing the impact resistant composition comprises the steps of (I) selecting poly(vinyl chloride); (2) selecting an impact modifier composition comprising; (a) less than 30 percent by weight of high-density polyethylene, based on the weight of impact modifier composition; and (b) at least 70 percent by weight of chlorinated polyethylene, based on the weight of impact modifier composition; (3) melt blending the poly(vinyl chloride) and the impact modifier composition; and (4) thereby producing the impact resistant composition comprising at least 85 percent by weight of poly(vinyl chloride), based on the weight of the impact resistant composition; and (2) less than 10 percent by weight of the impact modifier composition. In an exemplary process for producing the impact resistant composition of the instant invention, the vinyl chloride polymer component in a powder form and the impact modifier composition in the powder form are fed into an extruder, e.g. single screw extruder or twin screw extruder, and melt blended into a substantially homogenous mixture at melt temperatures in the range of 150° C. to 220° C. All individual values and subranges from 150° C. to 220° C. are included herein and disclosed herein; for example, the melt temperature may be from a lower limit of 150, 155, 160, 165, 170, 175, 180, 185, 190, 195, 200, 210, 215° C. to an upper limit of 155, 160, 165, 170, 175, 180, 185, 190, 195, 200, 210, 215, or 220° C. For example, the melt temperature may be in the range of 160 to 215° C., or in the alternative, the melt temperature may be in the range of 160 to 210° C., or in the alternative, the melt temperature may be in the range of 160 to 205° C., or in the alternative, the melt temperature may be in the range of 160 to 200° C., or in the alternative, the melt temperature may be in the range of 160 to 195° C., or in the alternative, the melt temperature may be in the range of 160 to 190° C. The high impact resistant compositions according to the instant invention are physical blends and do not require crosslinking or vulcanization.
Formulation Components Units Inventive 1 Inventive 2 Inventive 3
OMYACRAB UFT (Calcium Carbonate) Parts 12 12 12
PARALOID K-120N (Acrylic Process Aid) Parts 1.0 1.0 1.0
ADVASTAB TM-286 (Methyl Tin Stabilizer) Parts 1.0 1.0 1.0
Formulation Components Units 1 2 3 4 5 Comparative 6 Comparative 7
OMYACRAB UFT (Calcium Parts 12 12 12 12 12 12 12
AC 629A (Oxidized PE Wax) Parts 0.15 0.15 0.15 0.15 0.15 0.15 0.15
PARALOID K-120N (Acrylic Parts 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Process Aid)
HOSTALUB XL165 (Paraffin Wax) Parts 1.5 1.5 1.5 1.5 1.5 1.5 1.5
ADVASTAB TM-286 (Methyl Tin Parts 1.0 1.0 1.0 1.0 1.0 1.0 1.0
TI-PURE R960 (Titanium Dioxide) Parts 0.5 0.5 0.5 0.5 0.5 0.5 0.5
US12277401 2007-11-29 2008-11-25 Impact modifier composition, an impact resistant composition, method of producing the same, and articles made therefrom Abandoned US20090143535A1 (en)
US13168917 Continuation US8283417B2 (en) 2007-11-29 2011-06-24 Impact modifier composition, an impact resistant composition, method of producing the same, and articles made therefrom
US20090143535A1 true true US20090143535A1 (en) 2009-06-04
WO2011144039A1 (en) * 2010-05-21 2011-11-24 Dow Global Technologies Llc Thermoplastic compositions and formed articles thereof
US20150357080A1 (en) * 2014-06-05 2015-12-10 Sumitomo Electric Industries, Ltd. Flame-retardant flexible polymer composition, and polymer tube and insulated wire formed from the polymer composition
US6849694B2 (en) * 2002-01-17 2005-02-01 Dupont Dow Elastomers, Llc Impact modifier compositions for rigid PVC compositions of hydrocarbon rubbers and chlorinated polyethylene
US6204334B1 (en) * 1998-03-31 2001-03-20 The B. F. Goodrich Company Blocky chlorinated polyolefins, process for making and use as impact modifier compatibilizer for PVC or CPVC
US20110251350A1 (en) 2011-10-13 application