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US 2006/0188390 A1Published application
Fumigation tarp
OwnerRichard Galloway, David Jonesinventors
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Abstract
A composite sheet material comprising a substantially gas-impermeable laminate made of a reinforcement scrim and a flexible sheet material that is extrusion-coated with a thermoplastic polymer resin particularly useful as a fumigation tarp having extremely low chemical gas permeability, high strength to weight ratio and good durability.
Claims6
A fumigation tarp comprising a composite sheet material comprising:
- a layer of a flexible sheet material having a tensile strength of at least 20 N/cm, a work to break of at least 0.6 Nm, and a grab tensile of at least 150 N,
- a layer of a thermoplastic open mesh reinforcement scrim laminated to the first layer;
- and
- a layer of polymer extruded on the scrim layer with the extruded layer having a thickness no less than 12 micrometers,
- wherein the layers are laminated to form a composite sheet having a thickness of no greater than 380 micrometers, a tensile strength of at least 65 N, an Elmendorf tear resistance of at least 10 N and a basis weight of no greater than 135 g/m2.
2 more elements
Dependencies are inferred from the claim text.