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:
Jul. 10, 1990
Filed:
Aug. 12, 1987
Applicant:
Inventors:
Michel Gay, Lyons, FR;
Edith Canivenc, Lyons, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 18 ; 528 26 ; 556440 ; 556467 ; 556469 ;
Abstract
Organopolysiloxane oils comprising acrylate and/or methacrylate functional groups, well adapted as additives for silicone elastomers, or for UV-curable silicone coating compositions, are prepared by transesterifying an organopolysiloxane including at least one (HOY)R.sub.2 SiO.sub.0.5 or (HOY)RSiO.sub.2/2 recurring unit, with a lower alkyl (meth)acrylate having the formula CH.sub.2 .dbd.CR'OCOR', in the presence of a catalytically effective amount of a tin compound.