Polymeric microparticles
US4569966A · kind A · utility
34Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1984 |
| Grant date | Feb 11, 1986 |
| Priority date | — |
| Expiry date | Apr 19, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric microparticles and dispersions of polymeric microparticles in a liquid hydrocarbon are disclosed. The dispersions are prepared by reacting in dispersed form a preformed NCO-prepolymer containing a segment solvated by the liquid hydrocarbon and a segment insoluble in the liquid hydrocarbon with an active hydrogen-containing compound. Reaction proceeds to form polymeric microparticles which are dispersed in the liquid hydrocarbon. Also disclosed are the use of the polymeric microparticles in coating compositions and articles coated with the coating compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.