METHOD FOR PRODUCING A MULTILAYER STRUCTURE COMPRISING AN ADHESIVE COMPOSITION BASED ON AN AMYLACEOUS MATERIAL

摘要

The subject matter of the invention is a method for producing an article comprising a multilayer structure containing: - a first layer based on a metal or on an organic polymer; - and a second layer of an adhesive composition comprising by weight: a) from 15 to 40% of at least one amylaceous material; b) from 10 to 30% by weight of at least one plasticizer for this amylaceous material; c) from 10 to 35% of at least one nongrafted polypropylene; d) from 10 to 35% of at least one polypropylene grafted with a grafting monomer selected from unsaturated carboxylic acid anhydrides, unsaturated carboxylic acids, oxiranes and silanes; these percentages being defined relative to the sum of a, b, c and d; said first and second layers adhering to one another and said method comprising a step of bringing the adhesive composition into contact in the molten or softened state.