Reinforced polypropylene composition

Details Reinforced polypropylene composition Reinforced polypropylene composition

1989-11-08

1991-01-08

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524449, 524504, C08K 1304, C08K 334, C08L 2326

Patent

active

049836471

ABSTRACT:
The present invention relates to a reinforced polypropylene composition comprising a polypropylene component (a modified polypropylene or a mixture of said modified polypropylene and an unmodified polypropylene), an ethylene-propylene copolymer, a glass fiber and mica having an average particle diameter of 40-160 .mu.m and an average aspect ratio of 30-85. This composition can provide molded articles of very low warpage and is useful for the production of molded articles, particularly core materials of instrument panels for automobiles requiring high rigidity, high heat resistance and deformation resistance.

REFERENCES:
patent: 4603153 (1986-07-01), Sobajima
patent: 4694031 (1987-09-01), Morita
patent: 4707505 (1987-11-01), Matsuno

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