Extruder isolation of polymers from solution

Details Extruder isolation of polymers from solution Extruder isolation of polymers from solution

C - Chemistry, Metallurgy

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F

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C08F 6/12 (2006.01) B29C 47/10 (2006.01) B29C 47/76 (2006.01) C08G 64/40 (2006.01) C08G 65/46 (2006.01) C08G 85/00 (2006.01)

Patent

CA 2022571

- RD-17377 EXTRUDER ISOLATION OF POLYMERS FROM SOLUTION Abstract Polymers, such as polyphenylene ethers, are isolated from solution in an extruder by addition of at least one non-solvent. Optional steps include removal of volatiles through vents or ports on the extruder and employment of an auxiliary non-solvent. Additional operations, such as blending with further polymers, fractionation of low molecular weight molecules and functionalization by chemical reaction, may also be performed in the extruder.

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