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Class Information
Number: 525/234
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Mixing of two or more solid polymers; mixing of solid polymer or sicp with sicp or spfi; mixing of sicp with an ethylenic agent; mixing of solid polymer with a chemical treating or ethylenic agent; or processes of forming or reacting; or the resultant product of any of the above operations > At least one solid polymer derived from ethylenic reactants only > Polymer mixture of two or more solid polymers derived from ethylenically unsaturated reactants only; or mixtures of said polymer mixture with a chemical treating agent; or products or processes of preparing any of the above mixtures > Solid polymer derived from reactant containing at least two ethylenic groups and is devoid of aryl ring > Polymer derived from nitrogen-containing reactant > At least two polymers derived from nitrogen-containing reactants
Description: Subject mixture wherein the polymeric mixture contains at least two solid polymers derived from nitrogen-containing reactants (e.g., poly(butadiene-acrylonitrile) mixed with poly(vinylchloride-acrylonitrile), etc.).

Patents under this class:
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Patent Number Title Of Patent Date Issued
8426524 Elastomeric blend for vehicle timing belt Apr. 23, 2013
8030407 Activated carbon fibers and precursor material thereof Oct. 4, 2011
7956128 Thermoplastic resin composition for refrigerator having improved environmental stress crack resistance Jun. 7, 2011
7847008 Hydrogenated NBR composition Dec. 7, 2010
7649051 Flame retardant thermoplastic polycarbonate compositions Jan. 19, 2010
7544745 Flame retardant thermoplastic polycarbonate compositions, method of manufacture, and method of use thereof Jun. 9, 2009
7060751 Graft polymers based on ethylene/.alpha.-olefin rubbers and process for their production Jun. 13, 2006
7037978 Quasi-interpenetrating networks used as separation media May. 2, 2006
6949607 Thermoplastic resin composition and its molded articles Sep. 27, 2005
6806315 Method for preparing of weatherability thermoplastic resin Oct. 19, 2004
6632888 Isocyanatosilane-and gel-containing rubber mixtures Oct. 14, 2003
6498223 Unsaturated nitrile-conjugated diene-typed rubber, rubber composition and process for the productions of the same Dec. 24, 2002
6403723 Composition of ABS and/or ASA copolymers and SAN copolymers with high chemical resistance Jun. 11, 2002
6281293 Mixture composition of synthetic resin and rubber Aug. 28, 2001
6277481 Adhesive composition and adhesive sheet Aug. 21, 2001
6262178 Rubber blend containing cyclized polyisoprene Jul. 17, 2001
6251996 Gel-type copolymer bead and ion-exchange resins made therefrom Jun. 26, 2001
6242534 Rubber composition, method of formulating and blending the same and article and tires made therefrom Jun. 5, 2001
6218473 Sulfur cured rubber composition containing chlorosulfonated polyethylene and carboxylated nitrile rubber Apr. 17, 2001
6060553 Non-agglomerating elastomeric particles May. 9, 2000
6043318 Nitrile rubber/polyvinyl chloride blends Mar. 28, 2000
6037415 Method of finishing plastic surfaces Mar. 14, 2000
6013732 Stainproofing agent Jan. 11, 2000
5874521 Polymer ahoy material and process for production thereof Feb. 23, 1999
5472995 Asbestos-free gaskets and the like containing blends of organic fibrous and particulate components Dec. 5, 1995
5446098 Covulcanizable rubber composition of partially hydrogenated nitrile rubber and chlorinated ethylene-propylene copolymer Aug. 29, 1995
5434218 ABS molding materials having a bimodal rubber particle size distribution Jul. 18, 1995
5387631 Tread rubber compositions and method of making same Feb. 7, 1995
5367048 Polymer alloy material and process for production thereof Nov. 22, 1994
5266640 Weather and heat resistant blended nitrile polymers Nov. 30, 1993
5225479 Polymers derived from a conjugated diolefin, a vinyl-substituted aromatic compound, and olefinically unsaturated nitrile Jul. 6, 1993
5112910 Mixtures of thermoplastic polymers in powder form May. 12, 1992
5106919 Compatible mixtures of N-aryl polyglutarimides with styrene copolymers Apr. 21, 1992
5098777 Compressed non-asbestos sheet containing novaloid and aramid fibers Mar. 24, 1992
4972022 Rubber compositions Nov. 20, 1990
4954571 Rubber dispersed copolymer resin Sep. 4, 1990
4897440 Abrasion resistant hulling rolls from carboxylated nitrile rubber Jan. 30, 1990
4885342 Thermoplastic polymer mixture with a high surface gloss Dec. 5, 1989
4837281 Method of making reinforced materials having improved reinforcing material therein Jun. 6, 1989
4824907 Preparation of thermoformed plastics articles Apr. 25, 1989
4791172 Process for the preparation of partially hydrogenated nitrile rubbers Dec. 13, 1988
4789697 Material based on a caoutchouc-type mixture for producing hard rubber, method of using such material for producing engine components, and engine components manufactured from such material Dec. 6, 1988
4713420 ABS compositions having trimodal rubber particle distributions Dec. 15, 1987
4647627 Low molecular weight copolymers and covulcanisates produced therefrom Mar. 3, 1987
4576992 Polymer mixtures Mar. 18, 1986
4522959 Thermoplastic compositions in powder form Jun. 11, 1985
4454304 Method and material for producing high green strength rubber compounds Jun. 12, 1984
4421884 Oil-resistant rubber composition Dec. 20, 1983
4409365 Thermoplastic rubber blends comprising crystalline polyolefin, vulcanized mono-olefin rubber and vulcanized nitrile rubber Oct. 11, 1983
4287316 Transparent resin composition for information signal recording discs Sep. 1, 1981

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