Process for preparation of flame retardant polyesters

Details Process for preparation of flame retardant polyesters Process for preparation of flame retardant 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 457P, 528273, 528287, 528194, C08G 6314

Patent

active

041275667

ABSTRACT:
A process for preparation of flame retardant, fiber-forming polyesters by polycondensing a glycol phthalate and a phosphine oxide in the presence of the reaction product of germanium dioxide and a tetraalkyl ammonium hydroxide.

REFERENCES:
patent: 3459711 (1969-08-01), Hartmann et al.
patent: 3651017 (1972-03-01), Tanabe et al.

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