Liquid-applied waterproofing membrane for roofs comprising a long-chain aldimine
US10487237B2 · kind B2 · utility
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9References
18Claims
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Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 4, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane having a polyurethane polymer, a long-chain aldimine and a hardener selected from an oxazolidine and another aldimine. The membrane has a low viscosity at low solvent content and a good shelf life stability and cures fast to form a solid elastic material. The membrane is particularly suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.