Purification of polystyrene recycle streams

Details Purification of polystyrene recycle streams Purification of polystyrene recycle streams

1998-07-22

2000-12-19

Teskin, Fred

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

Synthetic resins

Removing and recycling removed material from an ongoing...

526 65, 526 68, 526227, 5262325, 525 53, 525 54, 525316, C08F 1206, C08F29702

Patent

active

061628808

ABSTRACT:
A process is disclosed for enhancing the production of polymerized monovinyl aromatic compounds, in which process a small polymerization reactor is inserted in the recycle stream to deactivate the polymerization inhibitors in the recycle stream and to further increase the conversion level of monomer to desirable polymer.

REFERENCES:
patent: 4777210 (1988-10-01), Sosa et al.
patent: 4857587 (1989-08-01), Sosa et al.
patent: 4861827 (1989-08-01), Sosa et al.
patent: 5200476 (1993-04-01), Sosa et al.

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