Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Fluorescent dye – e.g. – stilbene – benzimidazole – benzoxazole,...
Patent
1980-04-02
1982-02-09
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Fluorescent dye, e.g., stilbene, benzimidazole, benzoxazole,...
252 875, 252 88, 252 89, 252 891, 25230121, 25230126, 546255, 564 82, 564286, C09K 1106
Patent
active
043148204
ABSTRACT:
The distyrylbenzenes of the formula ##STR1## in which X and X' independently of one another are --COO-- or --CON(R.sub.4)-- in the o-position, a direct bond, oxygen, sulfur, --O--C.sub.1-3 --alkylene--CON(R.sub.4)--, --SO.sub.2 N(R.sub.4)--, --O--C.sub.1-3 -alkylene--COO-- or --OCO--, Y and Y' independently of one another are C.sub.1-20 -alkylene, R.sub.1 and R.sub.1 ' independently of one another are unsubstituted or substituted C.sub.1-8 -alkyl or C.sub.3-4 -alkenyl, or R.sub.1 together with R.sub.2, or R.sub.1 ' together with R.sub.2 ', is a heterocyclic ring, R.sub.2 and R.sub.2 ' independently of one another are unsubstituted or substituted C.sub.1-8 -alkyl or C.sub.3-4 -alkenyl, or R.sub.2 together with R.sub.1, or R.sub.2 ' together with R.sub.1 ', is a heterocyclic ring, or R.sub.1 and R.sub.2, or R.sub.1 ' and R.sub.2 ', together with R.sub.3 are a pyridine or picoline ring, R.sub.3 is hydrogen, unsubstituted or substituted C.sub.1-4 -alkyl or C.sub.3-4 -alkenyl, or together with R.sub.1 and R.sub.2 or with R.sub.1 ' and R.sub.2 ' is a pyridine or picoline ring, R.sub.4 is hydrogen or unsubstituted or substituted C.sub.1-16 -alkyl, A.sup..crclbar. is a colorless anion and n and n' independently of one another are the number 0 or 1, and the benzene nuclei B and C can also be substituted by non-chromophoric substituents, can be prepared by reacting a correspondingly substituted benzaldehyde with a p-xylylenephosphonate and then alkylating or protonising the distyrylbenzenediamine formed. The distyrylbenzenes are fluorescent brightening agents for organic materials. They are particularly suitable for use as additives to textile and laundry after-treatment agents which contain cationic textile softeners.
REFERENCES:
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Venkataraman's "The Chemistry of Synthetic Dyes", vol. V (Academic Press, 1971), pp. 562-565.
Meyer Hans R.
Weber Kurt
Ciba-Geigy Corporation
Clingman A. Lionel
McC. Roberts Edward
Spitals John P.
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