Method of polymer impregnation
US5508060A · kind A · utility
95Cited by
12References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1994 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Sep 19, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods of impregnating various polymer substrates with an impregnation additive, by simultaneously contacting the polymer substrate with an impregnation additive, carrier liquid, and supercritical fluid are provided. The impregnation additive is substantially insoluble in the supercritical fluid, and the carrier liquid is preferably substantially insoluble in the supercritical fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.