Process for producing a water-absorbent resin
US4683274A · kind A · utility
107Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1985 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | May 28, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water-absorbent resin usable as a suitable water absorbent in sanitary materials and other fields can be produced by subjecting an aqueous solution of an .alpha.,.beta.-unsaturated carboxylic acid and of an alkali metal salt thereof to polymerization with a radical polymerization initiator in a petroleum-based hydrocarbon solvent in the presence or absence of a crosslinking agent and, in this polymerization, using a saccharose-fatty acid ester as a protective colloid agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.