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:
Jul. 16, 1991
Filed:
Nov. 08, 1989
Applicant:
Inventors:
Makoto Matsumoto, Ohta, JP;
Junichiro Watanabe, Ohta, JP;
Akitsugu Kurita, Ohta, JP;
Yuichi Funahashi, Ohta, JP;
Assignee:
Toshiba Silicone Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524837 ; 528 23 ;
Abstract
There is disclosed a process for producing polyorganosiloxanes, comprising that an organosiloxane having a structural unit represented by the following general formula: ##STR1## (in which R.sup.1 represents a substituted or unsubstituted monovalent organic group; and n represents an integer of 0 tp 3) is subjected to emulsion polymerization in an aqueous medium in the presence of an organic sulfonic acid and a trihalogenated acetic acid.