Spray-suppression device
AssigneeMonsanto Company
InventorEarle R. Ellis
Life of this patent
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Abstract
A laminated, spray-suppression device having service properties over a wide range of use temperatures includes a non-woven nylon fabric core layer to inhibit stress cracks originating at low temperatures in an embrittled, grass-like low density polyethylene or polypropylene layer on one side of the core layer from propagating through to a high density polyethylene backing layer on the other side of the core layer.
Claims10
A laminated spray-suppression device comprising a non-woven polyamide fabric core layer encapsulated on each side with an adhesive layer, a backing layer of high density polyethylene fusion-bonded to one of the adhesive layers and a grass-like, three-dimensional layer of low density polyethylene or polypropylene fusion-bonded to the other adhesive layer.
A method of minimizing the tendency of a spray-suppression laminate which includes a grass-like layer of low density polyethylene or polypropylene and a backing layer of high density polyethylene to crack through its thickness on the application of stress at low temperature, said method comprising the step of incorporating a core layer into the laminate between said high density and grass-like layers for inhibiting crack-propagation from the grass-like layer to the high density polyethylene layer, said core layer comprising a non-woven nylon fabric encapsulated on each side with a thermoplastic adhesive layer melt bondable to said high density polyethylene and grass-like layers.
Dependencies are inferred from the claim text.