Patent · US Active

Flexible geomembrane

US10836146B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

KURARAY CO., LTD. · JP

Inventors

Edgard Chow · Houston, US
Astrid Torres · Houston, US
Wataru Hirose · Kyoto, JP

Key dates

Filing date	May 10, 2019
Grant date	Nov 17, 2020
Priority date	—
Expiry date	May 10, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/30
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Provided is a polyvinyl chloride (“PVC”)/ethylene-vinyl alcohol (“EVOH”) multilayer sheet used for the fabrication of liners and covers for the geotechnical industry (“geomembrane”), which sheet has both good flexibility and excellent barrier properties to organic solvents and gases.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.