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. 31, 2006
Filed:
Sep. 17, 2003
Mikio Yamahiro, Kanagawa, JP;
Hisao Oikawa, Kanagawa, JP;
Kenya Ito, Kanagawa, JP;
Masami Tanaka, Kanagawa, JP;
Nobumasa Ootake, Kanagawa, JP;
Kenichi Watanabe, Kanagawa, JP;
Mikio Yamahiro, Kanagawa, JP;
Hisao Oikawa, Kanagawa, JP;
Kenya Ito, Kanagawa, JP;
Masami Tanaka, Kanagawa, JP;
Nobumasa Ootake, Kanagawa, JP;
Kenichi Watanabe, Kanagawa, JP;
Chisso Corporation, Osaka, JP;
Abstract
The object of the present invention is to provide a new kind of silicon compound having an ester-type organic functional group and a new method for providing a T-silsesquioxane compound having a hydroxyl group by using said silicon compound as the starting material. A silicon compound represented by formula (1) is obtained through the production process characterized by using a silicon compound represented by formula (2). wherein: in formula (1), each of seven Rgroup is independently selected from the group consisting of hydrogen, alkyl, substituted or unsubstituted aryl, and substituted or unsubstituted arylalkyl and Ais a hydroxyl-terminal organic functional group, and in formula (2), each of Rgroup is the same as Rin formula (1), and Ais an organic functional group containing an acyloxy group.