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:
Apr. 03, 2001
Filed:
Oct. 28, 1999
Applicant:
Inventors:
Fumitaka Suto, Fukui, JP;
Hideyuki Mori, Chiba, JP;
Norikatsu Higuchi, Chiba, JP;
Norio Matsuda, Fukui, JP;
Assignee:
Dow Corning Toray Silicone, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B 1/10 ; B29B 7/00 ; C08K 5/01 ;
U.S. Cl.
CPC ...
B29B 1/10 ; B29B 7/00 ; C08K 5/01 ;
Abstract
A highly productive method for the continuous production of homogeneous solutions of organopolysiloxane gums is carried out by mixing a solvent and an organopolysiloxane gum. It is characterized by using for mixing, a twin screw compounding extruder which is self-cleaning in which the extruder has at least 2 solvent feed ports downstream from the gum feed port and the internal pressure in the extruder is maintained at a value from 0.00981 to 0.981 MPa during the process.