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:
Dec. 14, 1976
Filed:
Sep. 28, 1971
Applicant:
Inventors:
Assignee:
Ceskoslovenska akademie ved, Prague, C;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
20415924 ; 526170 ; 526308 ; 526332 ; 526334 ; 526339 ; 526346 ; 526347 ; 526349 ; 526350 ;
Abstract
Process for polymerization and copolymerization of momo-olefinic monomers, such as isobutylene, either with one another or with dienes, catalyzed by tetravalent metal halides, and initiated or accelerated by the action of ultraviolet, visible or infrared light. The polymerization or copolymerization can be affected with or without solvent. Suitable solvents are aliphatic, aromatic or halogenated hydrocarbons. The polymerization is carried out at a temperature in a range of from about -140.degree. C. to about +30.degree. C.