Thermoreversible coating and a process for its manufacture
US5633389A · kind A · utility
17Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | May 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a thermoreversible process for the preparation of a hydantoin comprisng PA1 (a) reacting an unsaturated polyester with a monofunctional amine to yield a poly(ester aspartate), and PA1 (b) reacting said poly(ester aspartate) with an isocyanate to produce a poly(ester urea), and PA1 (c) heating said poly(ester urea) to form a hydantoin compound. The process is useful for the preparation of coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.