Biodegradable textiles, masterbatches, and method of making biodegradable fibers
US11584833B2 · kind B2 · utility
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5References
26Claims
0Family size
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Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Mar 10, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2310/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A masterbatch is disclosed, along with associated methods, and biodegradable filaments, fibers, yarns and fabrics. The masterbatch includes 0.2 to 5 mass % CaCO3, an aliphatic polyester with a repeat unit having from two to six carbons in the chain between ester groups, with the proviso that the 2 to 6 carbons in the chain do not include side chain carbons, and a carrier polymer selected from the group consisting of PET, nylon, other thermoplastic polymers, and combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.