Thermoplastic compositions and process for preparing the same

DETAILED DESCRIPTION OF THE INVENTION A thermoplastic polyamide and an unvulcanized elastomeric halogen-containing copolymer of a C.
sub.
4 to C.
sub.
7 isomonoolefin and a para-alkylstyrene are contacted with a metal compound capable of sorbing or reacting with a hydrogen halide, hereinafter designated "the basic metal compound", in a contacting zone where the components are mixed at non-vulcanization conditions.
The contacting zone may be a mixer such as a roll mill, Banbury.
RTM.
mixer, continuous mixers, kneaders, mixing extruder, etc.
Suitable basic metal compounds include compounds having a metal constituent selected from the Group consisting of Group IB, Group IIA, Group IIB, Group IVA, Group IVB, the non-noble metals of Group VIII of the Periodic Table of Elements and mixtures thereof.
The preferred metal constituents are selected from the group consisting of copper, beryllium, magnesium, calcium, strontium, barium, zinc, cadmium, titanium, zirconium, germanium, tin, lead, iron, cobalt, nickel, ruthenium, and mixtures thereof.
The more preferred metal constituents are selected from the group consisting of copper, magnesium, calcium, zinc, cadmium, tin, lead, titanium, cobalt, iron, nickel and mixtures thereof.
The most preferred metal constituents are selected from the group consisting of zinc, magnesium, titanium and mixtures thereof.
The preferred compounds are selected from the group consisting of oxides, phosphates, carbonates, alkoxides, carboxylates and mixtures thereof of said metals.
The most preferred compounds are selected from the group consisting of zinc oxide, magnesium oxide and neoalkoxy, tri(dioctyl) pyrophosphato titanate which can be represented by the formula: ##STR1## such as those sold under the tradename Ken-React Caps L38 by Kenrich Petrochemical, Inc.
, and mixtures of these compounds.
The Periodic Table referred to herein is in accordance with the periodic table published by Sargent-Welch, copywright 1968, Sargent-Welch Scientific Company.
The basic metal compound is added to the polyamide and to the elastomeric halogen-containing copolymer in an amount insufficient to effect vulcanization of the thermoplastic composition but in an effective amount