Aqueous emulsion including interpenetrating network of silicone gum and crosslinked organic polymer
US12037493B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | May 15, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aqueous emulsion comprising particles having an average volume particle size (Dv 50) of 1 to 10 pm wherein the particles comprise an interpenetrating polymer network including from 90 to 99 wt % silicone gum and 1 to 10 wt % of crosslinked organic polymer, methods for making such aqueous emulsions, polyurethane coating compositions including such interpenetrating polymer networks, methods of preparing such polyurethane coating compositions, and their use in treating leather.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.