Synthesis and use of heterogeneous polymer gels
US5976648A · kind A · utility
39Cited by
17References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1996 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Dec 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a heterogeneous polymer gel comprising at least two gel networks. One embodiment of the present invention concerns a heterogeneous polymer gel comprising a first gel network comprising an environmentally-stable gel and a second gel network comprising an environmentally-unstable gel wherein the first gel network interpenetrates the second gel network. The heterogeneous polymer gel exhibits controlled changes in volume in response to environmental changes in condition, such as of temperature or of chemical composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.