Method for dispersing miscible polymeric components
US5192479A · kind A · utility
5Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1992 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Feb 6, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for dispersing a second polymer within a first polymer is disclosed, the polymers being mutually miscible and when blended exhibit lower critical solution temperature (LCST) type behavior. The first and second polymers are blended together at a temperature for easy processing and then phase separated at a temperature above the LCST of the blended polymer pair. The phase separated polymers are then cooled to a temperature wherein the polymer pair become fixed in the phase separated state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.