Preparation of high molecular polyesters of 1,4-butanediol

Details Preparation of high molecular polyesters of 1,4-butanediol Preparation of high molecular polyesters of 1,4-butanediol

1974-08-06

1976-02-24

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 40P, 260 457P, 260 458R, 260 75M, 260475P, C08G 6334

Patent

active

039403670

ABSTRACT:
Low-molecular polyesters prepared by the condensation of diols and dicarboxylic acid dialkyl esters show a substantially improved capactiy to undergo polycondensation in a susequent polycondensation below the melting point if said low-molecular polyesters are prepared from pressure trans-esterification products by polycondensation in the melt.

REFERENCES:
patent: 2907753 (1959-10-01), Maclean et al.

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