Process for introducing an additive into a polymer melt

Details Process for introducing an additive into a polymer melt Process for introducing an additive into a polymer melt

2011-08-09

2011-08-09

Del Sole, Joseph (Department: 1743)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S211000, C264S510000, C428S035900, C426S129000

Reexamination Certificate

active

07993560

ABSTRACT:
A process includes introducing a base polymer into an extruder, heating to a temperature sufficient to form a polymer melt, introducing a liquid such as water including an additive with mixing and subsequent vaporization and venting of the liquid to produce an extrudate having a uniform distribution of preferably uniformly small additive particles.

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