Liquid-applied waterproofing membrane for roofs comprising two different aldimines
US9879154B2 · kind B2 · utility
1Cited by
7References
22Claims
0Family size
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Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Apr 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2190/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A one-part moisture-curing liquid-applied waterproofing membrane is disclosed as including a polyurethane polymer and two different aldimines as blocked amine hardeners in a specific ratio range. The membrane has a low odor, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing 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.