Stabalization of linear polyesters

Details Stabalization of linear polyesters Stabalization of linear polyesters

1974-09-17

1976-05-25

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75N, 260 75T, 260307F, C08K 535, C08L 6702

Patent

active

039592154

ABSTRACT:
The invention relates to a process for reducing degradation in the spinning of fiber-forming polyesters by adding to the polyester granules before spinning compounds of the general formula ##SPC1##
In which hydrogen atoms may be replaced by alkyl or aryl radicals. These compounds react with the carboxyl end groups of the polyester, whereby in addition to the lesser degradation, a reduction of the number of free carboxyl end groups in the fiber is also obtained.

REFERENCES:
patent: 3051212 (1962-08-01), Daniels
patent: 3657191 (1972-04-01), Titzmann et al.
patent: 3692745 (1972-09-01), Molenaar
Fukui et al., Chem. Abs., vol. 72, 1970, 112313x.
Frump, Chem. Revs., vol. 71, No. 5, 1971, pp. 494 and 495.

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