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:
Mar. 29, 1983
Filed:
Feb. 19, 1980
Applicant:
Inventors:
Akihiro Kawasaki, Ichihara, JP;
Tsuyoshi Matsumoto, Ichihara, JP;
Masanobu Taniguchi, Narashino, JP;
Isao Maruyama, Ichihara, JP;
Masaaki Matsui, Tokyo, JP;
Masao Kaneko, Tokyo, JP;
Akihiko Imai, Tokyo, JP;
Assignee:
Maruzen Petrochemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526114 ; 2524 / ; 526115 ; 526116 ; 526122 ; 526127 ; 526129 ; 526137 ; 526144 ; 526155 ; 526157 ; 5261692 ; 526339 ; 526902 ;
Abstract
The present disclosure relates to a process for alternating copolymerization of propylene and butadiene in the absence of a polymerization solvent. The disclosure contains information relative to commercial production of the said copolymer and detailed teachings relative to the preparation of catalyst for use in the said process.