Thermoplastic resin compositions

Details Thermoplastic resin compositions Thermoplastic resin compositions

1981-07-17

1984-01-24

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 72, 525 80, 525 86, 526 78, 526262, 526284, 526298, 526317, 5263292, 526342, C08F21206, C08F21210

Patent

active

044278322

ABSTRACT:
In the emulsion polymerization of a monomer mixture comprising an aromatic vinyl compound, a vinyl cyanide compound and if desired, other vinyl compounds copolymerizable therewith in an aqueous medium, the vinyl cyanide compound is further added to the polymerization system in a controlled velocity during the substantial period of polymerization from the initial stage. When the copolymer thus obtained is incorporated into, for example, an acrylonitrile-butadiene-styrene terpolymer composition, thermoplastic resin compositions not coloring upon molding are obtained with a good impact resistance and heat resistance.

REFERENCES:
patent: 2559155 (1951-07-01), Chapin et al.
patent: 2646417 (1953-07-01), Jennings
patent: 3149183 (1964-09-01), Salyer et al.
patent: 3424823 (1969-01-01), Hall et al.
patent: 3547857 (1970-12-01), Murray
patent: 3956246 (1976-05-01), Griffith et al.
patent: 4002812 (1977-01-01), Hendy
patent: 4060680 (1977-11-01), Hendy
patent: 4294946 (1981-10-01), Minematsu et al.

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