High performance polyolefin blends for industrial pallets...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C524S401000, C524S425000, C525S055000, C525S238000, C525S240000

Reexamination Certificate

active

06987148

ABSTRACT:
A thermoplastic polyolefin blend comprising of a base polymer and up to 25% by wt of an ethylene propylene diene monomer (EPDM), the balance if any consisting of a conventional filler and/or a conventional compatibilizer or interfacial agent is disclosed. The blend of the present invention is prepared by extruding a base polymer with ethylene propylene diene monomer (EPDM) at a temperature in the range of from 150 to 230° C. The blends of the invention exhibit very high mechanical properties at moderate concentrations of EPDM and/or filler, and can be made into industrial pallets either by injection molding or by thermoforming.

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