Solvent-free aqueous polyurethane dispersions and methods of producing solvent-free aqueous polyurethane dispersions
US10329449B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Nov 21, 2014 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Jul 17, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solvent-free aqueous curable polyurethane dispersion is derived from at least one isocyanate-terminated ethylenically unsaturated polyurethane pre-polymer in a reactive diluent. The polyurethane pre-polymer comprises at least one (meth)acrylate functional group and at least one isocyanate functional group. Methods for making a solvent-free aqueous polyurethane dispersion, curable compositions comprising the dispersion and resulting cured products are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.