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:
Jul. 19, 2005
Filed:
May. 17, 2000
Masaki Hayashi, Aichi, JP;
Tomoyuki Nakamura, Aichi, JP;
Norihisa Ujikawa, Aichi, JP;
NOF Corporation, Tokyo, JP;
Abstract
Alkoxyamines containing a vinyl group as represented by the following general formula (1) are produced in a method which comprises a process of heating divinyl benzene, nitroxide compound and organic peroxide up to a temperature at which the organic peroxide decomposes thermally:(In the formula, Rrepresents an aryl group or an RO group, wherein Rrepresents a linear or branched alkyl group having 1-12 carbon atoms or a cycloalkyl group. Rand Rare each tertiary alkyl group having 4-6 carbon atoms or of cyclic structure where Rand Rare connected with each other having a total carbon number of 8-16. In case of cyclic structure, they are optionally substituted either by an alkyl group, an oxo group, a hydroxyl group, an acyloxy group or an alkoxy group.) Furthermore, graft polymers can be produced by the use of high molecular radical polymerization initiators from which an alkoxyamine group suspends.