Dispersion of a preformed polymer in a polyol
US6613827B2 · kind B2 · utility
31Cited by
23References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Sep 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2423/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a process for preparing a stable dispersion of a preformed polymer in a polyol in a single mixer. A preformed polymer is mixed under sufficient heat and shear to reduce its particle size to a desired size in the presence of a polyol. The present invention also provides stable dispersions of polymers in polyols and polyurethane formulations containing stable dispersions made by the process of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.