Water immiscible porogen removal process
US6673847B2 · kind B2 · utility
2Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jul 7, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2201/042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of removing water immiscible porogens from macroreticular copolymers comprising distilling said porogen in water soluble organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.