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. 17, 2020
Filed:
Sep. 14, 2016
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Takuya Abe, Annaka, JP;
Hiroomi Iyoku, Annaka, JP;
Masanao Kamei, Annaka, JP;
Yoshinori Takamatsu, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
A method for producing a hydrosilyl group-containing organic silicon resin of formula (6) in a solid form, wherein after formulae (1) to (3) are hydrolyzed in the presence of an acid catalyst, hydrolysis is carried out by adding hydrosilyl group-containing organic silicon compounds of formulae (4) and (5), followed by neutralization by a base catalyst with the amount thereof being more than a molar equivalent of the acid catalyst, and then by condensation. By so doing, deactivation amount of the hydrosilyl group can be reduced, so that the method for producing the hydrosilyl group-containing organic silicon resin, which is in a solid form without a solvent and to which a hydrosilyl group can be introduced quantitatively and in a large quantity, is provided,RSiOSiR  (1)RSiX  (2)SiX  (3)HRSiOSiRH  (4)HRSiX  (5)(RSiO)(HRSiO)(SiO)(RSiO)  (6).