Urethane linked hydroxy aromatic isocyanates
US4724256A · kind A · utility
2Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1987 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Jan 13, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/7614
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to urethane linked hydroxy aromatic isocyanates and to a process for producing such urethane linked hydroxy aromatic isocyanates. The compositions are formed by reacting one equivalent aromatic diisocyanate with one equivalent of an alkylene polyol under conditions such that only one of the isocyanate groups react with the hydroxyl group of the polyol. Conditions are controlled such that the urethane linked hydroxy aromatic isocyanates are formed. The resulting product is suited for producing a variety of elastomers including a one component polyurethane elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.