Cross-linked water-swellable polymer particles
US4059552A · kind A · utility
157Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1975 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Oct 23, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/916
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Cross-linked water-swellable polymers are described, having a particle size of less than 4 microns. They are used as thickening agents for aqueous dispersions or solutions, particularly useful where high shear conditions are encountered in the application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.