Curative for a two component isocyanate adhesive and said adhesive
US4373082A · kind A · utility
19Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1981 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Nov 16, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curative for a two component isocyanate or polyurethane adhesive composed of a prepolymer component having about 3 to 15 percent free isocyanate, said curative comprising at least one polyol of about 400 to 6000 molecular weight and a polyamine with at least part of said polyol and said diamine being reacted with an organic polyisocyanate to form micelles that exhibit upon NMR examination strong urea peaks and weak urethane peaks. The curative is useful to make an adhesive that is particularly useful for adhering to metals and polyesters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.