Storable flowable polyurethane adhesive composition
US4247676A · kind A · utility
15Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Aug 13, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are disclosed storable, flowable, liquid polyurethane compositions comprising an equivalent of a prepolymer formed by reacting a liquid material having 2 to 3 hydroxyls with sufficient organic polyisocyanate to give an excess of 3 to 15 percent free NCS in said prepolymer and from 0.85 to 1.15 equivalents of a complex of alkali metal salt with 4,4'-diphenylmethane diamine, said polyurethane compositions being useful as gel coats and adhesives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.