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. 19, 2006
Filed:
Nov. 16, 2005
Tiberiu L. Simandan, Marietta, OH (US);
Michael R. Powell, New Martinsville, WV (US);
Tiberiu L. Simandan, Marietta, OH (US);
Michael R. Powell, New Martinsville, WV (US);
General Electric Company, Schenectady, NY (US);
Abstract
Mercaptoalkylalkoxysilane is obtained by reacting at least one sulfide of the general formulaMHSwherein M is an alkali metal or ammonium with a haloalkyl silane in an aqueous reaction medium in the presence of an acidic gas to maintain the pH of the reaction medium at or below about 10, and in the additional presence of alkylguanidinium salt phase transfer catalyst to provide mercaptoalkylalkoxysilane, the alkylguanidinium salt phase transfer catalyst being represented by the general formula: wherein each of Ris a primary alkyl radical and Ris a primary alkyl or bis(primary alkylene) radical, or at least one of the R–R, R–Rand R–Rcombinations with the respective connecting nitrogen atom forms a heterocyclic radical; X is an anion; and n is 1 or 2.