Polystyrene processing apparatus and method

Details Polystyrene processing apparatus and method Polystyrene processing apparatus and method

2011-05-03

2011-05-03

Seidleck, James (Department: 1765)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S480000, C528S50200C, C528S50200C, C528S503000, C521S040000, C165S064000, C422S129000, C422S131000, C422S138000

Reexamination Certificate

active

07935783

ABSTRACT:
A method and apparatus for processing polystyrene. The method includes the steps: using at least one scrapped surface heat exchanger (160) to heat a solution of polystyrene dissolved in an organic solvent to provide a heated solution of polystyrene dissolved in the organic solvent, and separating the dissolved polystyrene from the organic solvent. The apparatus includes: a holding tank at least partly filled with a solution of polystyrene dissolved in an organic solvent, at least one scrapped surface heat exchanger (160), and a separator.

REFERENCES:
patent: 5824709 (1998-10-01), Suka

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