Process for making fiber-forming polyesters

Details Process for making fiber-forming polyesters Process for making fiber-forming polyesters

1977-12-22

1978-11-28

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

260 458R, 528273, 528289, 528287, 528194, C08G 6320, C08G 6368

Patent

active

041275659

ABSTRACT:
A flame-retardant, easily dyeable polyester and the process for preparing the same by polycondensing a glycol phthalate prepolymer with a phosphine oxide and dye improver selected from the group consisting of

REFERENCES:
patent: 2646420 (1953-07-01), Morgan
patent: 3459711 (1969-08-01), Hartmann et al.
patent: 3651017 (1972-03-01), Tanabe et al.
patent: 4073829 (1978-02-01), Moedritzer

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