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. 15, 2022
Filed:
May. 18, 2018
Sekisui Plastics Co., Ltd., Osaka, JP;
Ryo Akuta, Osaka, JP;
Koichiro Okamoto, Osaka, JP;
SEKISUI PLASTICS CO., LTD., Osaka, JP;
Abstract
A hydrogel has water, a polyvinylsulfonic acid-based polymer, and a polymer matrix containing the water and the polyvinylsulfonic acid-based polymer, in which the polymer matrix contains a copolymer of a monofunctional monomer having one ethylenically unsaturated group and a polyfunctional monomer having 2 to 6 ethylenically unsaturated groups, the copolymer has a hydrophilic group binding to its main chain, the polymer matrix is contained in an amount of 2 to 80 parts by mass in 100 parts by mass of the hydrogel, a polymer derived from the polyfunctional monomer is contained in a proportion of 0.1 to 5 parts by mass in 100 parts by mass of the copolymer, the polyvinylsulfonic acid-based polymer is contained in an amount of 0.1 to 150 parts by mass in 100 parts by mass of the polymer matrix, and the polyvinylsulfonic acid-based polymer has a weight average molecular weight of 200,000 to 3,000,000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile