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:
Nov. 13, 2007
Filed:
Aug. 07, 2003
Kohji Ohno, Kyoto, JP;
Yoshinobu Tsujii, Kyoto, JP;
Takeshi Fukuda, Kyoto, JP;
Chisso Corporation, Osaka, JP;
Abstract
A silicon compound represented by Formula (1). In Formula (1), Ris a group independently selected respectively from the group consisting of a hydrogen atom, alkyl, substituted or non-substituted aryl and substituted or non-substituted arylalkyl, and Ais an organic group substituted with a halogenated sulfonyl group and is preferably a group represented by Formula (2). In Formula (2), X is halogen; Ris alkyl; a is an integer of 0 to 2; and Zis a single bond or alkylene having a carbon number of 1 to 10. The silicon compound provided by the present invention is a silsesquioxane derivative having an excellent living polymerizable radical polymerization initiating function. For example, it is possible to commence polymerization by allowing an acryl base monomer to coexist to form an acryl base polymer making use of one point of the structure of the silsesquioxane in the present invention as a starting point. Because a halogenated sulfonyl group has a strong electrophilicity, it is possible to synthesize various silsesquioxane derivatives by reacting the silicon compound provided by the present invention with various nucleophilic reagents, and it can actively be used as an intermediate useful for organic synthesis.