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. 17, 1976
Filed:
Oct. 29, 1974
Applicant:
Inventors:
Shoei Fujishige, Yokohama, JA;
Mitsuo Suzuki, Tokyo, JA;
Assignee:
Agency of Industrial Science & Technology, Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 526 72 ; 526211 ; 526204 ; 526222 ; 526328 ; 526217 ; 526193 ;
Abstract
Disclosed is a method whereby a vinyl compound such as an .alpha., .beta.-carbonyl compound, acrylonitrile or methacrylonitrile is polymerized in a non-protonic organic medium in the presence of an alkali metal alcoholate as the polymerization catalyst. High polymers having different stereospecific structures contained at a desired ratio as well as low polymers having regulated stereochemical structures are manufactured from vinyl compounds such as above mentioned by selecting reaction conditions such as the kind of organic medium to be used and the amount of the catalyst in use based on that of the charged vinyl compound.