Spunbond fabrics comprising propylene-based elastomer compositions and methods for making the same
US10844529B2 · kind B2 · utility
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29References
11Claims
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Key dates
| Filing date | May 2, 2016 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | May 23, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A polymer composition for forming spunbond fabrics offers a unique combination of simplicity and processability, while allowing fabrics formed therefrom to exhibit suitable elasticity and/or tensile strength. The polymer composition includes an propylene-based elastomer component exhibiting a particular combination of MFR and comonomer content, so as to allow for improved processability with minimal, if any, need for blending partners in the polymer composition, while still permitting fabrics formed therefrom to exhibit improved elasticity and/or tensile strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.