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. 13, 1988
Filed:
Feb. 08, 1988
Applicant:
Inventors:
Anthony Pickering, Warrington, GB;
Andrew J Thorne, Chester, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526190 ; 526194 ; 526217 ; 526262 ; 5263031 ; 5263077 ; 526319 ; 526320 ; 526326 ; 526327 ; 526328 ; 5263297 ; 526341 ; 526342 ; 526 89 ;
Abstract
A polymerization process which comprises contacting at least one polar acrylic type or maleimide monomer under polymerization conditions with (i) a tetracoordinate organosilicon, organotin or organogermanium initiator having at least one initiating site, (ii) a co-catalyst which is a source of fluoride, bifluoride, cyanide or azide ions or a Lewis acid, and (iii) from 0.1 to 10% by weight, based on the weight of monomer, of acetonitrile.