HCFC resistant resin composition

Details HCFC resistant resin composition HCFC resistant resin composition

1996-10-08

1998-05-05

Zemel, Irina S.

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

Synthetic resins

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

525 71, C08F27904, C08L 5502

Patent

active

057475873

ABSTRACT:
The resin composition for preparing an internal box of a refrigerator according to the present invention comprises (A) a graft polymer obtained by grafting of a monomer mixture comprising a vinyl cyanide compound and an aromatic vinyl compound to a conjugated diene rubber, (B) a graft polymer obtained by grafting a monomer mixture comprising a vinyl cyanide compound and an aromatic vinyl compound to an acrylic rubber, (C) a copolymer of about 40.about.about 50% by weight of a vinyl cyanide compound and about 60.about.about 50% by weight of an aromatic vinyl compound, and (D) a copolymer of about 30.about.about 35% by weight of a vinyl cyanide compound and about 70.about.about 65% by weight of an aromatic vinyl compound. The thermoplastic resin composition according to the present invention may be preferably employed in preparing the internal boxes of refrigerators, which are manufactured using HCFC 141b as a foaming agent, due to good physical properties, easy vacuum formability, and excellent freon resistance, especially excellent resistance to HCFC 141b.

REFERENCES:
patent: 5229457 (1993-07-01), Kamoshita et al.

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