METHOD FOR PRODUCING A MULTILAYER STRUCTURE COMPRISING AN ADHESIVE COMPOSITION BASED ON AN AMYLACEOUS MATERIAL
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United States of America Patent
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Issued Date -
Aug 15, 2013
app pub date -
Oct 27, 2011
filing date -
Oct 27, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for producing an article including a multilayer structure containing:—a first layer based on a metal or on an organic polymer;—and a second layer of an adhesive composition including 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; the first and second layers adhering to one another and the method including a step of bringing the adhesive composition into contact in the molten or softened state.
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