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. 24, 1987
Filed:
May. 14, 1985
Applicant:
Inventors:
Gunther von Au, Sao Paulo, BR;
Karl Braunsperger, Burghausen, DE;
Karl Huhn, Burghausen, DE;
Ingomar Kovar, Burghausen, DE;
Assignee:
Wacker-Chemie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C07D / ;
U.S. Cl.
CPC ...
549215 ; 556413 ; 556423 ; 556424 ; 556425 ; 556439 ; 556445 ;
Abstract
A process for preparing organofunctional organopolysiloxanes which comprises reacting a cyclic diorganopolysiloxane with a silane having a SiC-bonded monovalent organic radical with at least one functional group and at least one SiOC-bonded monovalent hydrocarbon radical which can be substituted by an ether oxygen atom, or with an oligomer of such a silane having a maximum of 10 silicon atoms per molecule, in the presence of a quaternary ammonium hydroxide.