Composition for hydrogel, hydrogel and use thereof

Details Composition for hydrogel, hydrogel and use thereof Composition for hydrogel, hydrogel and use thereof

2005-02-22

2005-02-22

Metzmaier, Daniel S. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S088000, C525S191000, C525S209000, C525S228000, C516S102000, C514S944000, C514S772400, C514S772600

Reexamination Certificate

active

06858673

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, R1, R2, R3, R4, and L2each represents hydrogen, etc.; and L1represents —C6H4—, etc.)

REFERENCES:
patent: 5468475 (1995-11-01), Shaku et al.
patent: 5977257 (1999-11-01), Waki et al.
patent: 6090901 (2000-07-01), Bowers et al.
patent: 6310116 (2001-10-01), Yasuda et al.
patent: 03-039309 (1991-02-01), None
patent: 06-157271 (1994-06-01), None
patent: 09-3132 (1997-01-01), None
Machine translation for JP 06157271 A, http://www6.ipdl.jpo.go.jp/Tokujitu/PAJdetail.ipdl?N0000=80&N0120=01&N2001=2&N3001=H06-157271, (7 pages), (Sep. 2003).*
Derwent Abstract on EAST, week 200005, London: Derwent Publications Ltd., AN 1994-242962, JP 06157271 A, (Nakabayashi N), abstract.*
JPO on EAST, Patent Abstracts of Japan, JP406157271A (Jun. 1994).*
Machine translation for JP 09003132 A, http://www6.ipdl.jpo.go.jp/Tokujitu/PAJdetail.ipdl?N0000=80&N0120=01&N2001=2&N3001=H09-003132, (8 pages), (Sep. 2003).*
JPO on EAST, Patent Abstracts of Japan, JP409003132A (Jan. 1997).

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