Responsive polymer networks and methods of their use
US5939485A · kind A · utility
75Cited by
17References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1996 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Jan 3, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B71/081
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A responsive polymer network exhibiting the property of reversible gelation in response to a change in an environmental stimulus is provided. The aqueous solution of the network polymer, comprises about 0.01 to 20 wt % by weight of a responsive component and about 0.01 to 20 wt % by weight of a structural component capable of supporting and interacting with the responsive component. The aqueous composition exhibits at least a five-fold increase in viscosity upon gelation. The gelation may be triggered by a change in an environmental stimulus, such as temperature, pH and ionic strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.