Patent ID: 9331215
Filing Date: 2016-05-03
CPC Classification: C08G,C09K,H01L,Y02E

Claim Text:
1. A flame-retardant and transparent thermoplastic composition that contains no halogenated compound, the composition comprising a polyamide-block graft copolymer consisting of a polyolefin backbone and, on average, at least one polyamide graft wherein the grafts are attached to the backbone by the residues of a functional unsaturated monomer (X) having a function capable of reacting with a polyamide, the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization via its double bond, said polyamide-block graft composition presenting a nanostructured organization, the composition comprises, as a weight percentage of the total composition: between 90% and 99% by weight of the polyamide-block graft copolymer, and between 1% and 10% by weight of a metal salt of phosphonic acid.