Thermoplastic compositions based on saturated polyester and moulded articles containing them

Thermoplastic composition consisting essentially of at least 60% by weight of a saturated polyester and not more than 40% by weight of at least one polymeric reinforcement, wherein the polymeric reinforcement employed is an at least partially crosslinked polymeric composition obtained by mixing:

• (a) at least one copolymer comprising from 94 to 60% by weight of ethylene, from 5 to 25% by weight of at least one alkyl or cycloalkyl acrylate or methacrylate in which the alkyl or cycloalkyl group has from 2 to 10 carbon atoms, and from 1 to 15% by weight of at least one unsaturated epoxide,
• (b) at least one copolymer comprising from 84 to 60% by weight of ethylene, from 15 to 34% of at least one alkyl or cycloalkyl acrylate or methacrylate in which the alkyl or cycloalkyl group has from 2 to 10 carbon atoms, and from 1 to 6% by weight of at least one anhydride of an unsaturated dicarboxylic acid, and
• (c) at least one compound capable of accelerating the reaction between the epoxy group present in the copolymer (a) and the anhydride group present in the copolymer (b);
• said polymeric reinforcement being present in a sufficient quantity to impart to said thermoplastic composition a melt index (determined at 250.degree. C. under a load of 5 kg) of at least 10 dg/min., and to impart to said composition upon being molded into articles, a notched Izod impact strength of at least equal to 110 kg/cm/cm at 20.degree. C., at least equal to 25 kg/cm/cm at -30.degree. C., and at least 20 kg/cm/cm at -40.degree. C.