Hydrogel of (semi) interpenetrating network structure and...

Details Hydrogel of (semi) interpenetrating network structure and... Hydrogel of (semi) interpenetrating network structure and...

2003-04-10

2011-10-04

Hartley, Michael G (Department: 1618)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Matrices

Reexamination Certificate

active

08029824

ABSTRACT:
A hydrogel of the semi-interpenetrating network structure or interpenetrating network structure, characterized in that the hydrogel is one formed from a first monomer ingredient at least 10 mol % of which is accounted for by a charge-possessing unsaturated monomer, the molar ratio of the first monomer ingredient to the second monomer ingredient being from 1/2 to 1/100, and that the second monomer ingredient has been polymerized and crosslinked to a lower degree of crosslinking than the first monomer ingredient. The hydrogel is usable in a diaper, sanitary good, sustained-release agent, construction material, building material, communication material, soil conditioner, contact lens, ocular lens, hollow fiber, artificial cartilage, artificial organ, material for fuel cells, battery diaphragm, impact-resistant material, cushion, etc.

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