Mixture of grafted polyamide-block and flexible polyolefin copolymers

   
   

The invention concerns a mixture comprising by weight, the total being 100%, 1 to 100% if a polyamide block copolymer consisting of a basic polyolefin chain and on an average at least a polyamide graft wherein: the grafts are fixed to the basic chain by the radicals of an unsaturated monomer (X) having a function capable of reacting with a polyamide with amine terminal, the radicals of the unsaturated monomer (X) are fixed to the basic chain by grafting or copolymerization from its double bond; 99 to 0% of a flexible polyolefin with elastic modulus in flexure less than 50 MPa at 23.degree. C. and having a crystalline melting point ranging between 60.degree. C. and 100.degree. C. Said mixtures are useful for making films, tanks, geomembrane protective fabrics produced by extrusion, products obtained by calendering, thermocladding/forming, protective films for electric cables and skins using slush molding technique.

A invenção concerne uma mistura que compreende pelo peso, o total que é 100%, 1 a 100% se um copolymer do bloco do polyamide que consiste em uma corrente básica do polyolefin e em uma média ao menos um graft do polyamide wherein: os grafts são reparados à corrente básica pelos radicais de um monomer unsaturated (X) que tem uma função capaz de reagir com um polyamide com terminal do amine, os radicais do monomer unsaturated (X) são reparados à corrente básica grafting ou por copolymerization de sua ligação dobro; 99 a 0% de um polyolefin flexível com o modulus elástico no flexure menos de 50 MPa em 23.degree. C. e ter um ponto de derretimento cristalino que varia entre 60.degree. C. e 100.degree. C. As misturas ditas são úteis para fazer películas, tanques, as telas protetoras do geomembrane produzidas pela extrusão, os produtos obtidos calendering, o thermocladding/forming, películas protetoras para cabos elétricos e peles usando a técnica do molde da lama.

 
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