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:
Jun. 09, 2020
Filed:
May. 31, 2018
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Toshiaki Ihara, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
Provided are: a crosslinked organopolysiloxane which has properties intermediate between a dimethylpolysiloxane oil and a gel-like crosslinked siloxane; and a method for producing the crosslinked organopolysiloxane. An oil-like organopolysiloxane which is produced by: adding a compound having a siloxane unit represented by formula (3) to a gel-like silicone, wherein the gel-like silicone is produced by a hydrosilylation reaction of an organopolysiloxane having an alkenyl group with an organohydrogenpolysiloxane having a hydrogen atom bonded to a silicon atom in the presence of a platinum-group metal catalyst; and then equilibrating the resultant product with an acid or alkali catalyst.RSiO  (3)(Rrepresents a group selected from a monovalent hydrocarbon group having no aliphatic unsaturated bond and an alkenyl group represented by the formula: —(CH)—CH═CH(wherein a represents a numerical value of 0 to 6), and the average polymerization degree of formula (3) is 3 to 2,000).