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AssigneeInstitut Textile de France
InventorsOdile Demuth, Daniel Wattiez, Jacques Maguin, Jean C. Brosse, Fabienne Poncin-Epaillard, Bruno Chevet
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The invention relates to the use of the amino groups created on the surface of a polymer material, such as a polypropylene film, by an electric treatment, notably a cold plasma, under nitrogen atmosphere, for accelerating the grafting of the polymer material by impregnating the latter with a bath containing a vinyl type unsaturated monomer comprising a carbonyl group in .alpha. of the double vinyl bond, such as an acrylic monomer.
A process for accelerating grafting of a polymeric material by impregnating said polymeric material in a bath containing an unsaturated monomer, said unsaturated monomer containing a vinyl functionality and comprising a carbonyl group in a position .alpha. to the double bond of said vinyl functionality, wherein said polymeric material is electrically treated in a nitrogen atmosphere at a frequency of 433 MHz in order to create amino groups on the surface of said polymeric material.
Dependencies are inferred from the claim text.