Ionomer/rubber/polyolefin blend and uses thereof

A thermoplastic ionomer blend or alloy composition exhibiting advantageous properties upon molding or extrusion and/or thermoforming, consisting essentially of the following components:

• A. about 15 to 85 parts by weight of a thermoplastic copolymer containing about 91 to 80 weight percent of alpha-olefin units and about 9 to 20 weight percent of alpha, beta-ethylenically unsaturated carboxylic acid units, said carboxylic acid units being about 20 to 90 percent neutralized with metal ions,
• B. about 10 to 80 parts by weight of a rubber which is a thermoplastic elastomer selected from the group consisting of (a) crosslinked ethylene-propylenediene copolymers and ethylene-alkene copolymers, (b) crosslinked acrylonitrile-butadiene copolymers, (c) crosslinked styrene-butadiene copolymers, and (d) styrene acrylonitrile graft-crosslinked polybutadiene rubbers, and
• C. about 5 to 40 parts by weight of a thermoplastic polymer selected from the group consisting of polyethylene and polypropylene copolymers and homopolymers,
• the total number of parts being 100, the blend when molded or extruded and/or thermoformed into a thermoplastic product providing properties in the following ranges:
• Specific Gravity 0.82-1.1 Tensile Strength 800-6500 PSI % Elongation 10-800% Flexural Modulus 500-90,000 PSI Tear Resistance 10 N/mm minimum 60 Degree Gloss 80 max. of Molded Plaque