Polylactide fibers
US10208405B2 · kind B2 · utility
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3References
10Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Aug 12, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Polylactide fibers are made from a blend of polylactides. One of the polylactides has a ratio of R-lactic and S-lactic units from 8:92 to 92:8. The second polylactide has a ratio of the R-lactic and S-lactic units of ≥97:3 or ≤3:97. The ratio of the R-lactic units to S-lactic units in the blend is from 7:93 to 25:75 or from 75:25 to 93:7. The polylactide fiber contains at least 5 Joules of polylactide crystallites per gram of polylactide resin in the fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.