Polyisocyanatoimido compositions and imide group containing polymers prepared therefrom
US4302572A · kind A · utility
7Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Jan 17, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31725
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coating or molding composition including a polyisocyanate, an unsaturated imide and an olefinically unsaturated comonomer copolymerizable with the unsaturated imide, and having a ratio of total isocyanate functions to total polymerizable double bonds in the imide in the range of from 0.3 to 15, is addition polymerized to hard, imide group containing polymers characterized by the recurring unit: ##STR1## Coatings and shaped articles formed from such polymers are hard, tough, thermally stable, solvent resistant and are good insulators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.