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:
Nov. 02, 1999
Filed:
Nov. 05, 1997
Donald Anthony Kadlec, Midland, MI (US);
William James Schulz, Jr, Midland, MI (US);
Shizhong Zhang, Midland, MI (US);
Dow Corning Corporation, Midland, MI (US);
Abstract
A method of thickening solvents involves reacting (A) an .ident.Si--H containing polysiloxane with (B) an alkene such as an alpha, omega-diene; conducting the reaction in the presence of a platinum catalyst and (C) a solvent; continuing the reaction until a gel is formed by crosslinking and addition of .ident.Si--H across double bonds in the alpha, omega-diene; adding additional solvent and a post cure terminating agent to the gel; and subjecting the solvent, the post cure terminating agent, and the gel to shear force until a paste is formed. The post cure terminating agent is an amino acid ester, preferably a sulfur containing amino acid ester, such as methionine methyl ester, methionine ethyl ester, cysteine methyl ester, cysteine ethyl ester, and cystine dimethyl ester.