Process for the preparation of oligourethanes containing free isocyanate groups, the oligourethanes obtainable by this process and their use as binders or binder components in moisture hardening one-component lacquers
US4737566A · kind A · utility
5Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1987 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Apr 2, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/6611
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for the preparation of an oligourethane and free isocyanate groups which soluble in aromatic solvents and suitable as a lacquer binder by reacting an organic diisocyanate with a high molecular polyol and a low molecular weight polyol which contains 2,2,4-trimethylpentane-1,3-diol, its ethoxylation and/or propoxylation products or addition products of this low molecular weight diol with .epsilon.-caprolactone. The present invention is also directed to oligourethanes produced by this process and to their use as the binder or binder component in moisture hardening one-component lacquers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.