Compatibilizing agent for engineering...

Details Compatibilizing agent for engineering... Compatibilizing agent for engineering...

2005-05-03

2005-05-03

Nutter, Nathan M. (Department: 1711)

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

Synthetic resins

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

C525S192000, C525S194000, C525S195000, C525S196000, C525S197000, C525S198000, C525S217000, C525S222000, C525S225000, C525S232000, C525S240000, C525S262000, C525S263000, C525S266000

Reexamination Certificate

active

06887940

ABSTRACT:
A compatible blend of an engineering thermoplastic such as a polyamide and an olefin polymer material is prepared by (1) making an oxidized olefin polymer material containing carboxylic acid groups or derivatives thereof, (2) extruding a mixture of (a) the oxidized olefin polymer material from step (1), (b) an engineering thermoplastic, (c) optionally, an inorganic base, and (d) optionally, a non-oxidized olefin polymer material, and (3) recovering a blend of the engineering thermoplastic, the oxidized olefin polymer material or an ionomer thereof, which acts as a compatibilizer, and, optionally, the non-oxidized olefin polymer material.The oxidized olefin polymer material can be made by treating the olefin polymer material with an organic peroxide initiator while adding a controlled amount of oxygen.

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