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:
Feb. 09, 2010
Filed:
Oct. 12, 2005
Kazuaki Muranaka, Shunan, JP;
Maho Yamanaka, Isehara, JP;
Kosuke Araki, Shunan, JP;
Tosoh Corporation, Shunan-shi, JP;
Abstract
Crosslinked (meth)acrylamide particles in the form of substantially spherical fine particles having particle sizes of from 1 to 1000 μm made of a polymer of a N-alkoxymethyl(meth)acrylamide and a polyfunctional unsaturated monomer copolymerizable with the N-alkoxymethyl(meth)acrylamide, wherein the structural units derived from the N-alkoxymethyl(meth)acrylamide are crosslinked by a crosslink having a structure represented by the formula 1 (wherein X is hydrogen or a methyl group, and each of Rand Ris another structural unit derived from the N-alkoxymethyl(meth)acrylamide and bonded to the nitrogen atom in another structural unit derived from the N-alkoxymethyl(meth)acrylamide monomer via a methylene group).