Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1985-08-05
1987-09-08
Briggs,, Sr.,
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525207, 525404, 525 53, 525315, C08F27902, C08F25506, C08F28306
Patent
active
046924981
ABSTRACT:
Rubber-modified thermoplastic resins are characterized by having a high content of olefinically unsaturated nitriles and good transparency. These thermoplastic resins generally comprise from about 43 to about 75 parts by weight of a monovinyl aromatic monomer, from about 20 to about 40 parts by weight of an olefinically unsaturated nitrile monomer and from about five to about 35 parts by weight of an unsaturated dicarboxylic acid anhydride monomer, providing 100 parts of a thermoplastic terpolymer, and from about two to about 30 parts by weight of rubber polymer per 100 parts of the thermoplastic terpolymer. Other resins characterized by having between about 30 to 45 parts by weight of unsaturated dicarboxylic acid anhydride exhibit good heat distortion temperatures.
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Bodolus Christopher L.
Woodhead David A.
Briggs, Sr.
Evans Larry W.
Miller John E.
The Standard Oil Company
Yusko David P.
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