Polyurethane dispersion based synthetic leathers
US9963822B2 · kind B2 · utility
0Cited by
11References
5Claims
0Family size
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Key dates
| Filing date | Jan 11, 2013 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jul 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249991
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A multilayer structure including (a) a fabric, (b) a polyurethane foam containing a plurality of cells defined therein, wherein the foam contains at least one surfactant, and (c) a skin layer, wherein the skin layer comprises a wetting agent and an acrylic polymer having a glass transition temperature of −20 degree Celsius or less, and the foam resides between the fabric and the skin layer; and the process of preparing the multilayer structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.