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. 22, 2005
Filed:
May. 09, 2000
Nobuyuki Sakamoto, Tsukuba, JP;
Kenshiro Shuto, Ibaraki, JP;
Shujiro Sakaki, Ibaraki, JP;
Ken Suzuki, Tsukuba, JP;
Shinji Tanaka, Tsukuba, JP;
Nobuyuki Sakamoto, Tsukuba, JP;
Kenshiro Shuto, Ibaraki, JP;
Shujiro Sakaki, Ibaraki, JP;
Ken Suzuki, Tsukuba, JP;
Shinji Tanaka, Tsukuba, JP;
NOF Corporation, Tokyo, JP;
Abstract
A composition for hydrogels which comprises (A1) a copolymer which comprises 25 to 97 mol % of unit (a) derived from a compound represented by formula (1) and 3 to 75 mol % of unit (b) derived from a monomer represented by formula (2) and is soluble in aqueous media and (B) a polymer which has hydrophilic groups such as hydroxyl or carboxyl groups and is soluble in aqueous media; and a hydrogel comprising the composition. (X represents a divalent organic residue; Y represents alkyleneoxy, etc.; Z, R, R, R, R, and Leach represents hydrogen, etc.; and Lrepresents —CH—, etc.)