| abstract |
A compatible blend of an engineering thermoplastic such as polyamide and an olefin polymer material produces (1) an oxidized olefin polymer material containing carboxylic acid groups or derivatives thereof, (2) (a) in step (1) Extrude a mixture of the produced oxidized olefin polymer material, (b) engineering thermoplastic, (c) optionally inorganic base, and (d) optionally unoxidized olefin polymer material, and (3 ) By recovering a blend of engineering thermoplastic resin, oxidized olefin polymer material or its ionomer that acts as a compatibilizer, and optionally unoxidized olefin polymer material. Oxidized olefin polymer material can be produced by treating the olefin polymer material with an organic peroxide initiator while adding a controlled amount of oxygen. |