Process for the production of linear polyesters

Details Process for the production of linear polyesters Process for the production of linear polyesters

1975-03-06

1976-12-21

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75M, C08G 6338

Patent

active

039987930

ABSTRACT:
An alkali metal hydrogen monoglycolphosphate is added to the reaction product of diethylene glycol and dimethyl terephthalate to arrest the ester-interchange reaction and nullify the action of the divalent metal salt catalyst. These phosphates are easy to handle and convert the catalyst to an inactive compound which does not adversely affect subsequent polycondensation of the diethylene glycol terephthalate.

REFERENCES:
patent: 3028366 (1962-04-01), Engle et al.
patent: 3171828 (1965-03-01), Isaacs et al.

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