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:
Sep. 27, 1994
Filed:
Jan. 22, 1993
Applicant:
Inventors:
Hiroshi Tsuchiya, Tokyo, JP;
Makoto Kokura, Tokyo, JP;
Yutaka Ozawa, Kanagawa, JP;
Takaaki Sugimura, Tokyo, JP;
Assignee:
Asahi Denka Kogyo K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525356 ; 5253328 ; 5253329 ; 5253331 ;
Abstract
Disclosed herein is a process for the preparation of a chlorinated rubber, wherein chlorine gas is caused to act on a polyisoprene rubber to prepare the chlorinated rubber. Chlorine gas is blown into a high-acidity aqueous dispersion of the polyisoprene rubber to chlorinate the polyisoprene rubber, whereby a chlorinated isoprene rubber with high performance is prepared stably in an aqueous medium.