The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 1991
Filed:
Nov. 20, 1989
Kouhei Ueno, Sakai, JP;
Ube Industries, Ltd., , JP;
Abstract
The present invention relates to a polypropylene composition comprising a crystalline ethylene-propylene block copolymer having an ethylene content of 5-20% by weight and a melt flow index of 11-90, a thermoplastic elastomer, an amorphous propylene-.alpha.-olefin random copolymer having a number-average molecular weight of 1,000-20,000 and a propylene content of 40-95% by weight and an inorganic filler. This composition can be made into a molded article having no flow mark on the surface. The molded article is superior in rigidity, heat deformation resistance, low temperature impact resistance and coatability, has appearance free from waviness, voids, etc., and is suitable for use particularly in high quality bumper for automobiles.