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. 15, 2005
Filed:
Sep. 20, 2002
Applicant:
Keiji Wakita, Chiba, JP;
Inventor:
Keiji Wakita, Chiba, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07F007/04 ;
U.S. Cl.
CPC ...
Abstract
A process for the preparation of (D) thiocyanato-bearing organoalkoxysilanes represented by the general formula (3) NCS—R—Si(OR)Rwherein Ris a divalent hydrocarbon group having 1 to 6 carbon atoms, Rand Rare monovalent hydrocarbon groups, and the subscript n has a value of from 0 to 3, in which (A) a thiocyanic acid salt represented by the general formula (1) MSCN, wherein M is an alkali metal and (B) a halogenated alkylalkoxysilane represented by the general formula (2) XRSi(OR)Rwherein X is a halogen atom, and R, R, R, and the subscript n are the same as above, are reacted in the presence of (C) a phase transfer catalyst.