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:
Dec. 22, 2020
Filed:
Oct. 23, 2017
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Ryota Hashimoto, Annaka, JP;
Shinji Irifune, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
An epoxy group-containing organopolysiloxane shows the following average composition formula (1) and has an epoxy equivalent of 500 g/mol or more. The epoxy group-containing organopolysiloxane has excellent ultraviolet curability even when the content of epoxy group is small (when the epoxy equivalent is large), an ultraviolet curable silicone composition uses the same, and a method forms a cured film. In the formula, each Rrepresents the same or different unsubstituted or substituted monovalent hydrocarbon group having 1 to 10 carbon atoms (except for a group containing an epoxy group); Rrepresents a group containing an epoxy group; Rrepresents a hydrogen atom or a saturated monovalent hydrocarbon group having 1 to 4 carbon atoms; 'a', 'b', and “c” are positive numbers, “d” is 0 or a positive number, satisfying (a+b)/(c+d)=0.5 to 1.0.