Building assembly containing a water barrier coating film and method of making the building assembly
US10472293B2 · kind B2 · utility
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32References
19Claims
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Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Jun 24, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K7/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A building assembly can include a substrate and a water barrier coating film. The water barrier coating film can include a thermoplastic polymer and microporous particles, such as microporous glass beads. The water barrier coating film can provide a good protection towards liquid water but may allow water vapor flow from the substrate through the coating film. The water vapor permeability of the water barrier coating film can be at least 2 US perms as tested according to ASTM E96 (2014) at 21° C. and 50% average relative humidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.