A composition used for automotive fuel lines comprising a copolyamide resulting from condensation of a specified aliphatic diamine, aromatic carboxylic acid and aminoundecanoic acid or lactam 12

摘要

A composition comprising 60-99.5 wt.% of a specified copolyamide and 0.5-40 wt.% of one or more of plasticizer, nanofiller, polyolefin, crosslinked polyolefin or additive and optionally an aliphatic polyamide. - The copolyamide is of Formula X/Y,Ar, - Y = residues of an 8-20C aliphatic diamine; - Ar = residues of an aromatic carboxylic diacid; - X = residues of aminoundecanoic acid, residues of lactam 12 or the corresponding aminoacid, the residue of the condensation of the diamine with an aliphatic 8-20 diacid, the residue of condensation of the diamine with isophthalic acid. - Independent claims are included for - (1) Structures comprising a layer of the composition; - (2) Devices for storing or transfer of fluids comprising the structures; - (3) Materials for electric cables formed from the composition; - (4) Materials for filled formulations consisting of the composition; - (5) A structure comprising an external layer of an aliphatic polyamide, a polyolefin or a compatibilized mixture of them, optionally a binder layer and an internal layer consisting of the composition; - (6) A structure comprising an outer layer as above, optional binder layer, a central layer consisting of the composition, an optional binder layer, an optionally conductive inner layer similar to the outer layer and optionally a conductive layer similar to the outer layer; - (7) A structure comprising an external layer of the composition, an optionally conductive internal layer similar to the outer layer above and an optional conductive layer as above; - (8) A structure comprising an outer layer as above, an optional binder layer, a central layer consisting of a barrier material for petrols, an optional binder layer, an optionally conductive inner layer and optionally a conductive layer; - (9) A structure comprising an external layer of the composition, an optional binder layer an a layer of barrier material for petrols; - (10) A structure comprising an external layer of the composition, an optional binder layer a central barrier layer, an optional binder layer and an internal layer of the composition.