Tubular knitted geotextiles implementing hydrophobic cellulose based threads, methods of making the same, and erosion sediment and pollution control products made from the same
US12390789B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Aug 22, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A10/11
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An erosion, sediment and pollution control product comprises a geotextile which includes cellulose based threads treated to be hydrophobic and cellulose based filler within the tubular geotextile. The geotextile may be knitted and may include lyocell threads and wherein the lyocell threads are treated to be hydrophobic, and are treated with food grade mineral oil. A method of making a tubular knitted geotextile comprises the steps of: supplying cellulose based threads to a circular knitting machine and knitting a tubular substrate, treating the cellulose based threads with one of mineral oil, beeswax, paraffin, petroleum jelly, lanolin, plant-based oils, and combinations thereof, whereby the threads are rendered hydrophobic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.