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:
Mar. 31, 1992
Filed:
Aug. 03, 1990
Applicant:
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ;
U.S. Cl.
CPC ...
556437 ; 556442 ;
Abstract
Novel fluorinated carboxylic acid derivatives of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from substituted or unsubstituted monovalent hydrocarbon groups, Rf is a divalent perfluoroalkyl or perfluoropolyether group, X is a hydrogen atom or triorganosilyl group, and a is equal to 2 or 3 are useful curing catalysts for RTV organopolysiloxane compositions. These fluorinated carboxylic acid derivatives are prepared by effecting hydrosilylation between alkenyl-containing fluorinated carboxylic acid derivatives and hydrosilanes in the presence of catalysts.