Method of preparing plant-based functional polyester filament
US11566348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Feb 2, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2401/13
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A plant-based functional polyester filament and a preparation method of the plant-based functional polyester filament are provided. The plant-based functional polyester filament includes polyester, and plant extract in a weight percentage range of approximately 0.1%-1.5%. The plant extract includes one or more of a peppermint extract, a valerian extract, a lavender extract, a wormwood extract, a chitin extract and a seaweed extract. The method includes preparing a plant-based functional polyester masterbatch, including: heating polyethylene terephthalate (PET) chips to a molten state, adding an antioxidant and a dispersant to the molten PET, stirring the molten PET, adding a protective agent and a plant extract to the molten PET, stirring the molten PET at a high speed, adding a modifier to the molten PET, obtaining a mixture by uniformly mixing the molten PET, and performing an extrusion granulation process on the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.