Polyether based waterborne polyurethane dispersion and method for preparing the same
US12421391B2 · kind B2 · utility
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4References
12Claims
0Family size
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Key dates
| Filing date | Aug 22, 2019 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jul 28, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion is prepared in the presence of a chain extender N-aminoethylpiperazine (AEP) and exhibits good modulus while retaining limited solubility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.