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:
Aug. 20, 2013
Filed:
Feb. 01, 2011
Koji Hayashi, Ichihara, JP;
Yutaka Satou, Ichihara, JP;
Koji Hayashi, Ichihara, JP;
Yutaka Satou, Ichihara, JP;
DIC Corporation, Tokyo, JP;
Abstract
Phosphorus-containing oligomer is represented by formula (1): (Rrepresents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a phenyl group; n is the number of repeating units and an integer of 1 or more; X is a structural unit represented by structural formula (x1) or (x2) below; Y is a hydrogen atom, a hydroxyl group, or a structural unit represented by the formula (x1) or (x2); and, in the formula (x1) or (x2), R, R, R, and Reach independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group, or an aralkyl group), wherein the content of components whose n is 2 or more in the formula (1) is in the range of 5% to 90% in peak area in GPC measurement.