Impregnating paper with 7-hydroxy-coumarin compounds

Details Impregnating paper with 7-hydroxy-coumarin compounds Impregnating paper with 7-hydroxy-coumarin compounds

1981-12-22

1983-10-25

Ives, P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

428220, 428537, 428915, 428916, 427 7, 427395, B32B 2104, D21H 510

Patent

active

044119461

ABSTRACT:
7-Hydroxy-coumarin compounds of the general formula ##STR1## wherein A represents a heterocyclic radical, which can contain non-ionic substituents customary in dye-stuff chemistry,

REFERENCES:
patent: 2673186 (1954-03-01), Wheelock et al.
patent: 3886083 (1975-05-01), Laxer
patent: 4136229 (1979-01-01), Godet et al.
Venkatarman, The Chemistry of Synthetic Dyes, 1971, vol. 5, pp. 590-591.

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