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. 06, 1991
Filed:
Sep. 01, 1989
Applicant:
Inventors:
Hideki Imabayashi, Ichihara, JP;
Kazutoshi Ishikawa, Ichihara, JP;
Koji Yamamoto, Ichihara, JP;
Takashi Izumi, Ichihara, JP;
Assignee:
Idemitsu Petrochemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 88 ; 526346 ; 5263 / ;
Abstract
A process for continuously producing a styrene-based polymer having high syndiotactic configuration which comprises continuously introducing a styrene-based monomer into a reactor and polymerizing to while adjusting the amount of the polymer produced in the reactor to at least 10% by weight of the total amount of the unreacted styrene-based monomer and the polymer. According to the present invention, the styrene-based polymer with high syndiotactic configuration is effectively produced with small power consumption.