Low density porous cross-linked polymeric materials and their preparation and use as carriers for included liquids
US4522953A · kind A · utility
170Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1984 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Sep 24, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Cross-linked homogenous porous polymeric materials are prepared by polymerization of monomers as the continuous phase in a high internal phase emulsion having above a critical limit of surfactant to ensure adequate absorbtivity. The porous materials may be dried and refilled with selected liquids and act as a high capacity reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.