Polyester composition with improved dyeing properties
US11746228B2 · kind B2 · utility
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4References
11Claims
0Family size
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Key dates
| Filing date | Feb 28, 2020 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jun 3, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/8252
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A copolymer composition is disclosed with advantages for textile fibers, yarns, blended yarns, fabrics, and garments. The composition includes polyester copolymer, between about 9.5 and 10.5 percent adipic acid based on the amount of copolymer, between about 630 and 770 parts per million (ppm) of pentaerythritol based on the amount of copolymer, and between about 3.4 and 4.2 percent polyethylene glycol based on the amount of copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.