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:
Oct. 27, 1992
Filed:
Dec. 14, 1988
Applicant:
Inventors:
Mamoru Kioka, Iwakuni, JP;
Masaya Yamada, Ichihara, JP;
Masanobu Ishiyama, Ichihara, JP;
Masao Nakano, Yamaguchi, JP;
Akinori Toyota, Iwakuni, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525247 ; 525270 ; 525321 ; 525320 ;
Abstract
A process for producing polypropylene, which comprises preliminarily polymerizing 3-methylbuten3-1 in the presence of a catalyst system formed from
Kioka, Mamoru. (1992). Process for producing polypropylene and stretched polypropylene film (U.S. Patent No. 5159021). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5159021
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile