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:
Jan. 20, 1987
Filed:
Jun. 25, 1985
Applicant:
Inventors:
Hiroyoshi Asakuno, Ichihara, JP;
Kinya Mori, Chiba, JP;
Kiyoaki Suzuki, Ichihara, JP;
Mamoru Nishida, Chiba, JP;
Kenji Iwai, Ichihara, JP;
Masahiro Tamamushi, Yokohama, JP;
Teruo Kawasaki, Yokohama, JP;
Assignees:
Chisso Corporation, Osaka, JP;
Nissan Motor Co. Ltd., Kanagawaken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
524536 ; 525323 ;
Abstract
Polypropylene interior parts for autocars having overcome the drawback of their permanent bulge or secondary deformation due to high temperature exposure is provided, which parts are obtained by molding a material comprising a propylene-ethylene block copolymer prepared by polymerizing propylene at a first stage so that the resulting propylene homopolymer can have a relation between its isotactic pentad ratio (P) and MFR of