Polyisocyanate curing agent, and coating composition and adhesive composition employing the same
US5354834A · kind A · utility
19Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1992 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Jan 10, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curing agent for a two-component type polyurethane, containing as a main constituent a polyisocyanate derived from hexamethylene diisocyanate, the polyisocyanate having a viscosity of lower than 1,400 mP.a/25.degree. C. in substantially free from monomeric hexamethylene diisocyanate and a solvent, having a uretidine dione dimer content of more than 10%, and having an isocyanurate cyclic trimer content of less than 60%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.