Flame-retardant injection-molding resin composition

Details Flame-retardant injection-molding resin composition Flame-retardant injection-molding resin composition

1990-03-09

1992-05-26

Ziegler, Jacob

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

Synthetic resins

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

525203, 525207, 525228, 525230, C08L 3306, C08L 3318

Patent

active

051169096

ABSTRACT:
A flame-retardant injection-molding resin composition. The composition contains (A) 100 parts by weight of a flame-retardant resin composed of 30% to 80% by weight of styrene resin having a reduced viscosity of methyl-ethyl-ketone soluble portions of 0.2 to 0.55 dl/g in N,N-dimethylformamide at a concentration of 0.3 g/dl at 30.degree. C., and from 20% to 70% by weight of a polyvinyl chloride resin having a polymerization degree of from 400 to 800; and (B) 0.5 to 10 parts by weight of a copolymer of from 3% to 35% by weight of a vinyl cyanide compound, 30% to 97% by weight of an alkyl acrylate and 0% to 67% by weight of a vinyl monomer being copolymerizable with the vinyl cyanide compound and the alkyl acrylate. The flame-retardant injection-molding resin composition provides injection-molded articles of high impact strength and low delamination tendency and has excellent thermal stability, flame resistance and heat stability.

REFERENCES:
patent: 3536788 (1970-10-01), Hurwitz
patent: 4111876 (1978-09-01), Bailey
patent: 4391948 (1983-07-01), Falk
patent: 4460742 (1984-07-01), Kishida
patent: 4518515 (1985-05-01), Ott
patent: 4518743 (1985-05-01), Lindner
patent: 4764563 (1988-08-01), Meredith

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