Liquid catalysts for rapid polymerization of liquid compositions bases on polyisocyanates and epoxides
US5288833A · kind A · utility
8Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | May 20, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/686
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to quaternary .beta.-hydroxy-alkyl-ammonium halides and quaternary .beta.-hydroxy-cycloalkylammonium halides, which are liquid at temperatures lower than 60.degree. C., are easily and rapidly miscible in liquid epoxides, as well as in liquid poly-isocianates, generating liquid compositions which spontaneously polymerize, with fast polymerization rate, already at temperatures comprised within the range of from 0.degree. C. to 60.degree. C., yielding a solid, insoluble polymeric material endowed with very high values of softening temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.