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:
Oct. 30, 2012
Filed:
Dec. 25, 2008
Takashi Saito, Kisarazu, JP;
Mitsuhiro Koike, Kisarazu, JP;
Yuko Murakami, Kisarazu, JP;
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a cage-type copolymer in which a cage structure is incorporated in its main chain. Also disclosed is a curable resin composition comprising the said copolymer. Specifically disclosed is a curable cage-type silicone copolymer with a constituent unit represented by general formula (1) Y—[Z—(O—RSiO)—(RSiO)—(O)]—Z—Y: wherein Rand Reach is a vinyl group, an alkyl group, a phenyl group, a (meth)acryloyl group, an allyl group, or an oxirane ring-containing group, Z is a divalent group represented by the following general formula (2) wherein Ris a hydrogen atom, a vinyl group, an alkyl group, a phenyl group, a (meth)acryloyl group, an allyl group, or an oxirane ring-containing group, and Y is any one of the groups represented by the following general formula (3) [(RO)RSiO]—[RSiO]—[O]—, general formula (4) [RO]—[RSiO]—[O—RSiO]—, general formula (5) (RO)—, and general formula (6) (RSiO)— wherein Ris a hydrogen atom, a methyl group, or an ethyl group.