Aqueous polyurethane dispersions for artificial leather applications
US12031054B2 · kind B2 · utility
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6References
9Claims
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Key dates
| Filing date | Oct 8, 2018 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | May 6, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N2205/023
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous polyurethane dispersions are useful for making artificial leather and similar products. The dispersions contain polyurethane-urea particles dispersed in an aqueous phase. The particles are made using isophorone diisocyanate, certain cyclic amine chain extenders and certain polyol mixtures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.