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:
Feb. 29, 2000
Filed:
Jun. 12, 1998
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
In a first step, a crosslinkable organopolysiloxane oil (2) is mixed with an inorganic filler (3) in a flow jet mixer (1) to form a flowing silicone rubber compound. In a second step, the silicone rubber compound is fed into a tank (6) equipped at the bottom with a vacuum discharge pump (8) and maintained in vacuum where the compound is continuously deaerated, and a thixotropy controlling agent (10) is then added and mixed with the compound in a mixer (9). In a third step, a crosslinking agent (12) is added and mixed with the silicone rubber compound in a KRC kneader (11), and the compound is degassed in a mixer (13). The process continuously produces an RTV silicone rubber composition which is anti-sagging and improved in applicability on use.