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. 16, 1976
Filed:
Feb. 05, 1976
Applicant:
Inventors:
Horst Muller, Emmerting, DT;
Ignaz Bauer, Burghausen, DT;
Edgar Schmidt, Burghausen, DT;
Rudolf Riedle, Burghausen, DT;
Assignee:
Wacker-Chemie GmbH, Munich, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2604 / ; 2604 / ;
Abstract
An improved process for preparing bis-(trimethylsilyl-)urea which comprises reacting urea with hexamethyldisilazane in the presence of a catalytic amount of salts selected from the class consisting of ammonia, basic amine comounds and quaternary ammonium hydroxides.