Fibers of acid-dyeable polyester having tetramethylpiperidine gr

Details Fibers of acid-dyeable polyester having tetramethylpiperidine gr Fibers of acid-dyeable polyester having tetramethylpiperidine gr

1975-03-19

1977-01-04

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 77, C08G 6368

Patent

active

040011895

ABSTRACT:
Textile fibers or filaments prepared from polyesters modified with a minor proportion of 2,2,6,6-tetramethylpiperidine groups attached through oxyalkylene linkages to ends of linear polyester polymer chains have improved dyeability with acid dyes. A variety of alkylene oxide condensates of tetramethylpiperidine compounds are shown to have adequate heat-stability and compatibility for incorporating in polyesters under conditions of condensation polymerization to form desirable products.

REFERENCES:
patent: 2647104 (1953-07-01), Shivers
patent: 3352872 (1967-11-01), Cislak et al.
patent: 3372143 (1968-03-01), Terada et al.
patent: 3624181 (1971-11-01), Munakata et al.
patent: 3684765 (1972-08-01), Matsui et al.

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