Modified nonflammable resin composition

Details Modified nonflammable resin composition Modified nonflammable resin composition

1991-04-12

1993-05-04

Seccuro, Jr., Carman J.

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

Synthetic resins

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

525 83, 525 85, 525 86, 525227, 525228, 525233, 525238, C08L 2504, C08L 2706, C08L 5104, C08L 5502

Patent

active

052082881

ABSTRACT:
A modified nonflammable molding resin composition. The composition is a blend of (A) a nonflammable resin composition composed of 30 to 80% by weight of a styrene resin having a methyl ethyl keton-soluble portion having a reduced viscosity of 0.2 to 0.5 dl/g and 70 to 20% by weight of a vinyl chloride resin having a polymerization degree of 400 to 800; and 0.5 to 15 parts, based on 100 parts by weight of the nonflammable resin composition (A), of (B) a copolymer of a vinyl cyanide, an alkyl methacrylate, an aromatic vinyl compound and another copolymerizable vinyl monomer in specified ratios and having a reduced viscosity of not less than 1.8 dl/g. The composition has improved heat stability in injection molding and excellent heat resistance.

REFERENCES:
patent: 3053800 (1962-09-01), Grabowski et al.
patent: 3626033 (1971-12-01), Keskkula et al.
patent: 3678132 (1972-07-01), Isogawa et al.
patent: 3780134 (1973-12-01), Lonning

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