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:
Aug. 13, 1991
Filed:
Nov. 30, 1990
Applicant:
Inventors:
Norihisa Tamashima, Okazaki, JP;
Kouhei Ueno, Sakai, JP;
Tomohiko Akagawa, Sakai, JP;
Saburo Hinenoya, Sakai, JP;
Shinji Katsui, Sakai, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524423 ; 524451 ;
Abstract
A polypropylene resin composition obtained by mixing a crystalline ethylene-propylene block copolymer, an amorphous ethylene-propylene copolymer, talc and fibrous magnesium oxysulfate and then, at the time of melt-kneading the mixture, adding a metal soap to the mixture, retains the fiber length of the fibrous magnesium oxysulfate and has high rigidity with the addition of a small amount of the metal soap.