Back to results
US 5,763,047 AGranted
Blown-film textured liner having a smooth welding strip
AssigneeOlympic General Corporation
InventorJimmy D. Green
Life of this patent
Estimating the term…
Abstract
A blown-film textured liner having a textured surface to provide improved soil gripping properties and smooth untextured edges for improving the integrity of the joint between adjacent liner sheets. The textured liner can be used to protect soil from waste products.
Claims7
A blown-film textured liner, comprising:
- a) a first layer of thermoplastic material having an upper flat surface and a lower flat surface;
- b) a second layer of thermoplastic material bonded to said upper flat surface of said first layer of thermoplastic material, said second layer of thermoplastic material comprising a random distribution of peaks and valleys, wherein said second layer is not coextensive with said first layer;
- and
- c) a third layer of thermoplastic material bonded to said lower flat surface of said first layer of thermoplastic material, said third layer of thermoplastic material comprising a random distribution of peaks and valleys.
1 more element
Dependencies are inferred from the claim text.