Silane-modified polyurethane resins, a process for their preparation and their use as moisture-curable resins
US6046270A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/809
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to moisture-curable resins having an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, based on the weight of the moisture-curable resins, and optionally containing hydroxy groups, wherein the alkoxysilane groups are incorporated as the reaction products at an NCO/OH equivalent ratio of 0.5:1.0 to 1.0:1.0 of PA1 i) a polyol having a functionality of at least 4 and an equivalent weight of at least 200 with PA1 ii) a compound containing urea, isocyanate and alkoxysilane groups corresponding to the formula I ##STR1## The present invention also relates to a process for preparing these moisturecurable resins, to coating, adhesive or sealing compositions containing these resins as the binder and to the compounds containing urea, isocyanate and alkoxysilane groups used to prepare these resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.