Method of making an integral geogrid from a coextruded multilayered polymer starting material
US11933013B2 · kind B2 · utility
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24References
23Claims
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Key dates
| Filing date | Nov 10, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Nov 10, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2300/0084
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An integral geogrid includes a plurality of interconnected, oriented strands having an array of openings therein that is produced from a coextruded multilayer polymer sheet starting material. By virtue of the construction, the coextruded multilayer sheet components provide a crystalline synergistic effect during extrusion and orientation of the integral geogrid, resulting in enhanced material properties that provide performance benefits to use of the integral geogrid in soil geosyuthetic reinforcement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.