Process for the control of carboxyl end groups in fiber-forming

Details Process for the control of carboxyl end groups in fiber-forming Process for the control of carboxyl end groups in fiber-forming

1966-11-09

1977-04-05

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 334R, 260 457P, 260 47EP, 260 75R, 260873, 152330R, C08G 6346

Patent

active

040161420

ABSTRACT:
In the preparation of a fiber-forming polyester, the number of free carboxyl end groups present in the polymer may be reduced by adding to the polymerized polyester a glycidyl ether which reacts with the carboxyl end groups present to form free hydroxyl end groups.

REFERENCES:
patent: 2720500 (1955-10-01), Cody
patent: 2863855 (1958-12-01), Wilson et al.
patent: 2998408 (1961-08-01), Zoetbrood
patent: 3051212 (1962-08-01), Daniels
patent: 3089863 (1963-05-01), Hicks et al.
patent: 3110547 (1963-11-01), Emmert
patent: 3275606 (1966-09-01), Kujawa et al.
patent: 3372143 (1968-05-01), Terada
patent: 3869427 (1975-03-01), Meschke et al.

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