Storage stable polyurethane compositions
US4383070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1982 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | May 27, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to an organic polyurethane composition having a solids content of about 10 to 100 weight percent which comprises PA0 (1) isocyanate-terminated prepolymers which are prepared by reacting reaction products of the phosgenation of aniline-formaldehyde condensates containing specific ratios of isomers and homologues with polyether polyols containing at least two hydroxyl groups and at least one tertiary nitrogen atom and, optionally, an additional polyol which does not contain a tertiary nitrogen atom and optionally, PA0 (2) a monoisocyanate comprising a member selected from para-toluenesulfonyl isocyanate and the reaction product of 2,4- or 2,6-toluene diisocyanate or mixtures thereof with specific monoalcohols. The present invention is also directed to the coatings produced from the polyurethane compositions, optionally containing pigments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.