Cationic oxazine dyes

Details Cationic oxazine dyes Cationic oxazine dyes

1979-07-11

1981-09-15

Randolph, John D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

8655, 8657, C07D26538

Patent

active

042898803

ABSTRACT:
There are described new blue cationic oxazine dyes of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are each C.sub.1-4 -alkyl, with R.sub.1 and R.sub.2 together with the nitrogen atom also being able to form a heterocyclic ring, and X.sup..crclbar. is an anion; these dyes are distinguished in particular by an excellent migration capacity on polyacrylonitrile fibres.

REFERENCES:
patent: 3629248 (1971-12-01), Schafer et al.
patent: 3731222 (1973-05-01), Drexhage
patent: 3894014 (1975-07-01), Baumann et al.
patent: 4018763 (1977-04-01), Moser
patent: 4125717 (1978-11-01), Psaar
Canon KK, CPI-Profile Booklet 1978, abst. of Japanese Patent 78652Y/44 (E23 A89 G08 R24 (A13).
Mitsuhashi et al., Chem. Abst., vol. 88, abst. 144315w (1978).

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