Method for curing urethane resins
US4408034A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1982 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Feb 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/7642
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for curing an isocyanate group-containing compound, which comprises treating with a tertiary amine in a vapor-phase state an isocyanate compound having in one molecule not less than two isocyanate groups linked to an aromatic nucleus through a methylene group or an isocyanate-terminated urethane resin obtained by the reaction thereof with an active-hydrogen containing compound. The isocyanate compounds or isocyanate-terminated urethane resins are allowed to cure and dry for a shortened period of time ranging from about 1 to 10 minutes. The method of this invention can be advantageously employed in field, such as continuous painting and printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.