Crystalline ethylene-propylene copolymer with ethylene copolymer

Details Crystalline ethylene-propylene copolymer with ethylene copolymer Crystalline ethylene-propylene copolymer with ethylene copolymer

1996-04-24

1999-06-22

Sellers, Robert E.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524504, 524505, 525 64, 525 88, 525 89, C08K 322, C08L 5104, C08L 5302

Patent

active

059143630

ABSTRACT:
A thermoplastic resin composition which has a melt flow rate of 25 to 30 g/10 min and a flexural modulus at 23.degree. C. of 20,000 kg/cm.sup.2 or more and which comprises (1) 78 to 87% by weight of a specific crystalline homopolymer portion has a Q value of 3.0 to 5.0, an isotactic pentad 1.10 dl/g as measured at 135.degree. C. in tetralin, (2) 3 to 10% by weight of at least two specific rubber components selected from the group consisting of (B) 1 to 9% by weight of an ethylene-butene-1 copolymer rubber, (C) 1 to 9% by weight of an ethylene-propylene copolymer rubber and (D) 1 to 9% by weight of an alkenyl aromatic compound-containing rubber; and (3) 10 to 12% by weight of talc having an average particle diameter of 4 .mu.m or less, and an injection molded article of the thermoplastic resin composition, said thermoplastic resin composition satisfying the impact strength and rigidity required as a material for an interior automotive trim and having a short molding cycle and good surface quality.

REFERENCES:
patent: 5283267 (1994-02-01), Nishio et al.
patent: 5308908 (1994-05-01), Fukui et al.
patent: 5462987 (1995-10-01), Shinonaga et al.
patent: 5484824 (1996-01-01), Abe et al.
patent: 5543454 (1996-08-01), Kamakura et al.
patent: 5723527 (1998-03-01), Sadatoshi et al.
WPAT accession No. 93-149349/18 for Japanese Patent No. 5-86256, Sumitomo Chem Co Ltd and Toyota Jidosha KK, Apr. 1993.
WPAT accession No. 93-164637/20 for Japanese Patent No. 5-98094, Sumitomo Chem Co Ltd and Toyota Jidosha KK, Apr. 1993.
WPAT accession No. 93-164636/20 for Japanese Patent No. 5-98093, Sumitomo Chem Co Ltd, Apr. 1993.

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