Moisture-curable compounds containing isocyanate and alkoxysilane groups
US6077902A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to moisture-curable compounds which PA1 a) have an isocyanate group content (calculated as NCO, MW 42) of 0.2 to 30% by weight and an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, PA1 b) optionally contain repeating ethylene oxide units and PA1 c) have an equivalent ratio of isocyanate groups to alkoxy groups, which are bound to Si, of 1.0:0.05 to 1.0:1.4, wherein the preceding percentages are based on the weight of the moisture-curable compounds and wherein the alkoxysilane groups are incorporated as the reaction products of polyisocyanates with amino compounds corresponding to formula I ##STR1## The present invention also relates to coating, adhesive or sealing compositions containing these moisture-curable compounds as the binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.