POLYOLEFINES SOUPLES MODIFIEES AVEC DES COPOLYMERES GREFFES A BLOCS POLYAMIDES

摘要

Polyolefin chain grafted with polyamide units mixed with a flexible copolymer that has a flexural modulus less than 150 MPa at 23 [deg]C : A mixture (M) comprising: (a) 1-100 wt.% of a copolymer grafted with polyamide blocks consisting of a polyolefin chain and on average at least one polyamide graft in which: (i) the grafts are attached to the chain through a group (X) on unsaturated monomer which has a function capable of reacting with the terminal amine of a polyamide; (ii) the group (X) is attached to the chain by grafting or copolymerization through the double bond; and (b) 99-0 wt.% of a flexible polyolefin with flexural modulus less than 150 MPa at 23 [deg]C and with a crystalline softening point between 60 and 100 [deg]C. Independent claims are included for: (i) an adhesive consisting essentially of mixture (M); (ii) a film consisting of mixture (M) canvas or geomembrane consisting of at least one layer of mixture (M); (iii) product obtained by calendaring mixture (M); (iv) electrical cables comprising protection layer based on mixture (M); and (v) use of mixture (M) as a powder in slush moulding.