Fire-retardant polyurethane systems
US6790906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A storage-stable moisture-curing one-component fire-retardant polyurethane system, useful as adhesive, sealant or coating material, comprising at least one hydrated mineral having a water-content of less than 0.1% and being treated with a moisture-reactive compound, and at least one binder on isocyanate basis. Such PU-systems preferably further comprise at least one phosphorus-containing compound, most preferably a phosphorus-containing plasticizer, which is preferably halogen-free. The binder on isocyanate basis has preferably an isocyanate content in the range of from 0.01 to 10% by weight referred to the total weight of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.