Method of manufacturing shaped article of hydrogel
US4548983A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1984 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Jun 21, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F265/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for the manufacture of shaped article of hydrogel is provided. This shaped article of hydrogel is obtained by the polymerization in a mold of a mixture comprising: PA1 A. an alkylene glycol mono(meth)acrylate or a monomer mixture consisting preponderantly of an alkylene glycol mono(meth)acrylate, PA1 B. a polymer synthesized from a component A and possessing a polymerizable double bond in the molecular unit thereof, PA1 C. a water-soluble dipolar aprotic solvent, and PA1 D. at least one member selected from the group consisting of (a) water-soluble organic acids, (b) surface active agents, and (c) water-soluble organic substances which are poor solvents or non-solvents of the component B, and having the weight ratio of the component A to the component B in the range of 45:55 to 20:80.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.