Polymeric composition comprising transient foam control agent

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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521 57, 521 79, 521 81, 521 95, 521 97, 521139, 521146, C08J 908, C08J 910, C08J 914

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051890720

ABSTRACT:
A foamable composition comprising an alkenyl aromatic polymer, blowing agent and a transient foam control agent that is effective to reduce polymer melt viscosity in the melt phase but nonmiscible and nondetrimental to the solid polymer.

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Solid Solvent as Processing Aid for Polystyrene, C. I. Chung et al., Society of Plastics Engineers, first Regional Technical Conference, Nov. 6, 1985.

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