High specific gravity geosynthetic comprising polypropylene
US11932754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Apr 2, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2300/0085
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure provides a geosynthetic. In one embodiment, the geosynthetic contains a composition containing (A) a polypropylene and (B) from greater than 0 wt % to less than 3 wt % of a halogen-free flame retardant, based on the total weight of the composition. In another embodiment, the geosynthetic contains a composition containing (A) a polypropylene and (B) greater than 20 wt % zinc sulfide, based on the total weight of the composition. In another embodiment, the geosynthetic contains a composition containing (A) a polypropylene; (B) a halogen-free flame retardant; and (C) greater than 20 wt % zinc sulfide, based on the total weight of the composition. The composition has a specific gravity greater than 1.00 g/cc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.