Blends of polar thermoplastic polymers and modified block copoly

Details Blends of polar thermoplastic polymers and modified block copoly Blends of polar thermoplastic polymers and modified block copoly

1987-12-31

1990-03-06

Briggs, Sr., Wilbert J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 92, 525 98, C08L 5302, C08L 7702

Patent

active

049066870

ABSTRACT:
A multiphase thermoplastic composition is provided by incorporating at least one polar thermoplastic polymer with at least one functionalized, selectively hydrogenated alkenyl arene/conjugated diene block copolymer to which has been grafted an effective amount of carboxyl functional groups primarily in the alkenyl arene blocks thereof. The carboxyl functional groups may be in the form of carboxylic acids, their salts and esters, and combinations thereof. The rubbery compositions of the present invention possess improved tensile strength, high temperature mechanical properties and oil resistance.

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