Sealant composition comprising moisture curable isocyanurate containing compound
US5206331A · kind A · utility
10Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1991 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Jun 13, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S528/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
At least some of the isocyanate groups in the cured polyurethane sealant of this invention have the isocyanurate structure. A moisture-curing sealant composition of the invention comprises an active isocyanato-terminated isocyanate prepolymer containing a polyol component with a molecular weight of 2,000 to 20,000 and an isocyanurating agent. The sealant composition of the present invention is particularly excellent in initial bond strength due to sharp viscosity buildup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.