Waterborne polyurethane dispersion and method for preparing the same
US11981827B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Aug 14, 2019 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Dec 26, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24438
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion is prepared by using a tri-functionality polyether polyol as part of the polyols for forming the prepolymer and a hydrophilic amino siloxane co-chain extender, and can exhibit superior performance properties such as enhanced color fastness, improved low temperature stability, good anti-stickiness, bally flex resistance, anti-abrasion and mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.