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:
May. 31, 2022
Filed:
Nov. 29, 2017
Applicant:
Dow Silicones Corporation, Midland, MI (US);
Inventors:
Brian D. Rekken, Midland, MI (US);
Michael D. Telgenhoff, Midland, MI (US);
Assignee:
DDP Specialty Electronic Materials US 9, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/107 (2006.01); B01J 31/02 (2006.01); C07F 7/10 (2006.01);
U.S. Cl.
CPC ...
C01B 33/10773 (2013.01); B01J 31/0227 (2013.01); C01B 33/10778 (2013.01); C07F 7/10 (2013.01); B01J 2531/26 (2013.01);
Abstract
A method for making chlorinated silazanes. The method comprises contacting: (a) a disilazane; (b) a chlorosilane; and (c) a catalyst which is a zinc salt of: (i) a sulfonic acid or (ii) a sulfonic acid imide.