Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Patent
1975-11-03
1977-11-15
Czaja, Donald E.
Compositions: coating or plastic
Coating or plastic compositions
Carbohydrate or derivative containing
260 458NZ, 260 75N, 260307D, C08K 535
Patent
active
040584089
ABSTRACT:
The present invention relates to 1,4-bis-benzoxazolyl-(2)'-naphthalenes of the formula ##STR1## wherein R denotes optionally non-chromophorically substituted alkyl with 1 to 18 carbon atoms, alkenyl with 2 to 4 carbon atoms, cycloalkyl, aryl or aralkyl, Y denotes hydrogen, alkyl with 1 to 4 carbon atoms, halogen, carboxyl, carbalkoxy with 2 to 5 carbon atoms or the radical --SO.sub.2 R', wherein R' represents optionally non-chromophorically substituted alkyl with 1 to 18 carbon atoms, cycloalkyl, alkenyl with 2 to 4 carbon atoms, aryl or aralkyl, and X and X' independently of one another denote hydrogen, chlorine or alkyl with 1 to 4 carbon atoms. These new compounds are useful as optical brighteners for organic materials, especially for polyesters, polyvinyl chloride, polystyrene, polyacrylonitrile and cellulose acetates.
REFERENCES:
patent: 3565890 (1971-02-01), Tanaka
patent: 3586673 (1971-06-01), Bloom et al.
patent: 3637672 (1972-01-01), Seino et al.
patent: 3836505 (1974-09-01), Buell
patent: 3901883 (1975-08-01), Liechti et al.
patent: 3926963 (1975-12-01), Meyer
patent: 3940410 (1976-02-01), Kittl
Almaula Prabodh I.
Ciba-Geigy Corporation
Czaja Donald E.
McC. Roberts Edward
White R. A.
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