Preparation of gray to blue aromatic polyesters by incorporation

Details Preparation of gray to blue aromatic polyesters by incorporation Preparation of gray to blue aromatic polyesters by incorporation

1987-06-30

1990-09-25

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528180, C08G 63181

Patent

active

049594451

ABSTRACT:
This invention relates to imparting gray, blue, or purple tints to aromatic copolyester compounds. This is accomplished through the addition of a cobalt-containing compound such as cobalt carbonate, cobalt acetate, cobalt benzoate, or cobalt phenate to the polyester forming reaction system.

REFERENCES:
patent: 2902469 (1959-09-01), Burkhard
patent: 3697479 (1972-10-01), Maycock
patent: 3824213 (1974-07-01), Stackman
patent: 3948856 (1976-04-01), Stackman
patent: 4319017 (1982-03-01), Kosanovich et al.
patent: 4330668 (1982-05-01), Hideo et al.
Chem. Abstracts, vol. 72: 90977n.
Chem. Abstracts, vol. 86: 15623p.

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