Polypropylene resin composition

Details Polypropylene resin composition Polypropylene resin composition

1988-08-26

1992-09-08

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524449, 524451, 524456, 524504, 524505, 525 57, 525 66, 525 68, 525 74, 525 80, 525 92, C08K 334

Patent

active

051458918

ABSTRACT:
A polypropylene resin composition superior in rigidity, resistances to heat distortion, to secondary deformation, to sink mark forming and to warpage deformation is provided which comprises a specified propylene-ethylene block copolymer and an organic fiber and an optionally added inorganic filler, or a specified modified propylene-ethylene block copolymer and an organic fiber and an optionary added inorganic filler.

REFERENCES:
patent: 4176097 (1979-11-01), Fox et al.
patent: 4507423 (1985-03-01), Sasaki et al.
patent: 4546128 (1985-10-01), Nakajima
patent: 4550130 (1985-10-01), Kishida et al.
patent: 4550144 (1985-10-01), Chiba et al.
patent: 4603153 (1986-07-01), Sobajima et al.
patent: 4621115 (1986-11-01), Morita et al.
patent: 4720516 (1988-01-01), Kishida et al.

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