| http://www.w3.org/ns/prov#value | - The toughened compositions of this invention can be prepared by melt blending, in a closed system, a polyamide and at least one polymer into a uniform mixture in a multi-screw extruder such as a Werner Pfleiderer extruder having generally 2-5 kneading blocks and at least one reverse pitch to generate high shear, or other conventional plasticating devices such as a Brabender, Banbury mill, or the l
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