Film for the treatment of soils by fumigation
AssigneeElf Atochem S.A.
InventorsDominique Basset, Marie-Pierre Corbic-Bellinger, Bruno Echalier
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Abstract
The present invention relates to a film (A) consisting of a mixture comprising at least one polyamide and at least one polyolefin, the said film being placed on agricultural land into which a fumigant is injected. According to a first variant, the invention also relates to a film comprising the above layer (A) and a layer (B) consisting essentially of a polyolefin. According to a second variant, the invention also relates to a film comprising the above layer (A) placed between two layers (B). A coextrusion binder may optionally be placed between the layers (A) and (B) in the two variants. The invention also relates to a process for the treatment of soils by fumigation.
Claims27
A film (A) for use in covering agricultural land comprising a fumigant and having enhanced fumigant impermeability, wherein the film consists of a mixture comprising at least one polyamide and at least one polyolefin.
A process for fumigating agricultural land treated with a fumigant comprising the steps of (1) forming a film having enhanced fumigant impermeability from a mixture comprising at least one polyamide and at least one polyolefin and (2) covering the agricultural land comprising the fumigant with the film.
Dependencies are inferred from the claim text.