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. 12, 2023
Filed:
Aug. 12, 2020
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Muneo Kudo, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
One of the purposes of the present invention is to provide a silicone which has polymerizable groups at the both terminals and an amphiphilic side chain and which provides a copolymer having high surface wettability. The present invention provides a silicone represented by the formula (1): in the formula (1) Ris a group represented by the following formula (2): wherein n is an integer of 2 to 8 and Ris a methyl group or a hydrogen atom, 'a' is an integer of 1 to 500, b is an integer of 1 to 100, provided that a+b is 50 to 600, the siloxane units in the aforesaid parentheses may be bonded in a block or at random, Ris, independently of each other, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, Ris, independently of each other, an alkyl group having 1 to 6 carbon atoms, Ais a group represented by the formula (3) or (3'): wherein R is a hydrogen atom or a methyl group, Bis a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or an acyl group having 1 to 6 carbon atoms, m is an integer of 0 to 8, p is an integer of 1 to 10, q is an integer of 1 to 50, and the polyether units in the parentheses are bonded in the above-described order.