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. 23, 2024
Filed:
Nov. 21, 2019
Applicant:
Kuraray Co., Ltd., Okayama, JP;
Inventors:
Akio Fujita, Ibaraki, JP;
Atsushi Inatomi, Ibaraki, JP;
Kenta Toshinari, Ibaraki, JP;
Goro Kobayashi, Tokyo, JP;
Assignee:
KURARAY CO., LTD., Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/075 (2006.01); C08F 16/06 (2006.01); C08J 3/12 (2006.01); C08J 3/24 (2006.01);
U.S. Cl.
CPC ...
C08J 3/075 (2013.01); C08F 16/06 (2013.01); C08J 3/12 (2013.01); C08J 3/24 (2013.01);
Abstract
The present invention relates to monodisperse hydrogel particles containing a cross-linked product of a vinyl alcohol-based polymer having an ethylenically unsaturated group and an average degree of polymerization of 450 or more, the monodisperse hydrogel particles having an average particle size of 10 to 5,000 μm, and a coefficient of variation of a particle size distribution of 10% or less.