Dyed copolyesters and method of making

Details Dyed copolyesters and method of making Dyed copolyesters and method of making

1976-10-06

1977-09-20

Kight, III, John

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Depilating

8 1B, 8 1D, 8168C, 8179, 8DIG4, 8DIG7, 260 40R, D06P 352, D06L 6702

Patent

active

040493768

ABSTRACT:
New dyed copolyesters and their preparation are disclosed.
The copolyesters are characterized in that their macromolecular chains include dye moieties chosen from among those of the formulae: ##STR1## in which X is a hydrogen atom or a hydroxy group; X' is a halogen atom; Y is an alkoxy residue, Z.sub.1 is a hydrogen atom or a halogen atom or an alkyl or alkoxy residue and Z.sub.2 is a hydrogen atom or an acylamino residue.
These copolyesters can be converted into textile fibers or be used for dyeing of bulk plastic materials and synthetic fibers.

REFERENCES:
patent: 3371092 (1968-02-01), Dien
patent: 3480625 (1969-11-01), Ronco et al.
patent: 3510242 (1970-05-01), Bryan
patent: 3579519 (1971-05-01), Schweizer
patent: 4016132 (1977-04-01), Lees

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