Patent ID: 6579581
Filing Date: 2003-06-17
Classification: C08L,Y10T

Abstract:
A molding composition, consisting of:(I) from 60 to 96.5 parts by weight of a polyamide; (II) from 3 to 39.5 parts by weight of an impact-modifying component which comprises anhydride groups, wherein said impact-modifying component is selected from the group consisting of ethylene/C3-C12-&agr;-olefin copolymers and styrene-ethylene/butylene block copolymers; (III) from 0.5 to 20 parts by weight of a copolymer which comprises monomer units of the following monomers: (a) from 20 to 94.5% by weight, based on the total weight of (a), (b), and (c), of one or more &agr;-olefins having from 2 to 12 carbon atoms; (b) from 5 to 79.5% by weight, based on the total weight of (a), (b), and (c), of one or more acrylic compounds, selected from the group consisting of: (i) acrylic acid and methacrylic acid and salts thereof; (ii) esters of acrylic acid and/or of methacrylic acid with a C1-C12 alcohol; (iii) acrylonitrile and methacrylonitrile; (iv) acrylamides and methacrylamides; and (c) from 0.5 to 50% by weight, based on the total weight of (a), (b), and (c), of an olefinically unsaturated epoxide, an olefinically unsaturated carboxylic anhydride, an olefinically unsaturated carboximide, an olefinically unsaturated oxazoline, or an olefinically unsaturated oxazinone, wherein the total of the parts by weight of components I, II, and III is 100; wherein said polyamide has more amino end groups than carboxyl end groups; and wherein a mole ratio of said amino end groups to said carboxyl end groups is at least 55:45.