ELASTOMER THERMOPLASTIC MIXTURES AND COMPOSITIONS HAVING IMPROVED PROPERTIES, METHOD OF MAKING SAID COMPOSITIONS AND APPLICATIONS THEREOF

摘要

The mixture of the invention contains, for 100 parts in weight of (A) + (B): (A) 10 to 90 parts in weight of at least one non-nanostructured olefinic thermoplastic polymer; (B) 90 to 10 parts in weight of a formulation of at least one elastomer having unsaturated double bonds and capable of reacting with a cross-linking or vulcanisation agent, said formulation containing a cross-linking or vulcanisation system of said elastomer(s), at least one plasticizer and the standard additives present in elastomer formulations; (C) up to 100 parts in weight relative to (A) + (B) of at least one copolymer grafted with polyamide blocks, said copolymer comprising a polyolefine trunk and at least 1.3 polyamide grafts on said trunk in average and having a nano-structured organisation, wherein said grafts are attached to the trunk by the rest of an unsaturated monomer (X) having a function capable of reacting with a polyamide with an amine end, the rest of said unsaturated monomer (X) being attached on the trunk by grafting or copolymerisation from the double bond thereof, and wherein (A) and (B) in the mixture can already have been combined together by the cross-linking or vulcanisation dynamic method in order to provide a cross-linked or vulcanised thermoplastic composition.