Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-02-28
1978-06-06
Person, Sandra M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 4221, 260 37NP, C08K 535
Patent
active
040935850
ABSTRACT:
Process for the dyeing of a water-insoluble thermoplastic polymer or polycondensate in mass, which comprises adding to the said thermoplastic material before the final molding thereof an azlactone dyestuff of the formula (1) ##STR1## in which A and B each represents naphthyl, phenyl, chlorophenyl, bromophenyl, lower alkyl-phenyl, lower alkoxyphenyl, nitrophenyl, ##STR2## CYANOPHENYL, DICHLOROPHENYL, CHLORO-LOWER ALKYL-PHENYL, NITRO-LOWER ALKYL-PHENYL, CHLORO-NITROPHENYL, A and B being identical or different, D represents naphthylene, phenylene, monochlorophenylene, dichlorophenylene or di-lower alkoxyphenylene, or with a mixture of dyestuffs of the said formula (1), the dyeings so obtained representing brilliant yellow dyeings of high tinctorial strength being distinguished by very good fastness to light, rubbing and ironing and, particularly, an outstanding stability toward heat.
REFERENCES:
patent: 2571319 (1951-10-01), Waters et al.
patent: 3489713 (1970-01-01), Bowman et al.
patent: 3617170 (1971-11-01), Hansen et al.
patent: 3793341 (1974-02-01), Genta
Modern Plastics Encyclopedia 1967, Sept., 1966, vol. 44, No. 7A, p. 459.
Schickfluss Rudolf
Teige Wolfgang
Hoechst Aktiengesellschaft
Person Sandra M.
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