Claims
- 1. A silver halide sensitizing methine dye selected from those having one of the following formulas: ##STR35## wherein n represents a positive integer of from 1 to 4; g represents a positive integer of from 1 to 2; d represents a positive integer of from 1 to 3; R, R.sub.1, R.sub.3, R.sub.4 and R.sub.5 each represents a member selected from the group consisting of an alkyl, alkenyl, alkaryl and an aryl substituent; R.sub.4 and R.sub.5 also each represent in the alternative a member selected from the group consisting of alkoxy, halogen and cyano substituents, said substitutents R, R.sub.1, R.sub.3, R.sub.4 and R.sub.5 chosen such that the resulting nucleus is of the silver halide sensitizing type; X.sup.- represents an acid anion; Z represents the non-metallic atoms required to complete a sensitizing heterocyclic nucleus of the type used in cyanine dyes containing from 5 to 6 atoms in the heterocyclic ring; and Q represents the nonmetallic atoms required to complete a 5 or 6 membered silver halide sensitizing heterocyclic nucleus of the type used in merocyanine dyes.
- 2. A silver halide sensitizing methine dye of the formula ##STR36## wherein n represents a positive integer of from 1 to 4; R, R.sub.1, R.sub.4 and R.sub.5 each represent a member independently selected from the group consisting of an alkyl group of 1 to 12 carbon atoms, an alkenyl group of 2 to 4 carbon atoms, an alkaryl substituent of 7 to 12 carbon atoms and an aryl group of 6 to 20 carbon atoms said substitutents R, R.sub.1, R.sub.4 and R.sub.5 chosen such that the resulting nucleus is of the silver halide sensitizing type; and X.sup.- represents an acid anion.
- 3. A silver halide sensitizing machine dye of the formula ##STR37## wherein n represents a positive integer of from 1 to 4; g represents a positive integer of from 1 to 2; R, R.sub.1, R.sub.4 and R.sub.5 each represent a member independently selected from a group consisting of an alkyl group of 1 to 12 carbon atoms; an alkenyl group of 2 to 4 carbon atoms, an alkaryl substitutent of 7 to 12 carbon atoms and an aryl group of 6 to 20 carbon atoms; R.sub.3 represents an alkyl group of 1 to 12 carbon atoms said substitutents R, R.sub.1, R.sub.3, R.sub.4 and R.sub.5 chosen such that the resulting nucleus is of the silver halide sensitizing type; X.sup.- represents an acid anion; and Z represents the non-metallic atoms required to complete a silver halide sensitizing heterocyclic nucleus of the type used in cyanine dyes containing from 5 to 6 atoms in the heterocyclic ring and which in the alternative includes, in addition to the hetero nitrogen atom, a second hetero atom such as oxygen, sulfur, selenium or a second nitrogen atom.
- 4. A silver halide sensitizing methine dye of the formula ##STR38## wherein d represents a positive integer of from 1 to 3; R, R.sub.1, R.sub.4 and R.sub.5 each represent a member independently selected from an alkyl group of 1 to 12 carbon atoms, an alkenyl group of 2 to 4 carbon atoms, an alkaryl substituent of 7 to 12 carbon atoms and an aryl group of 6 to 20 carbon atoms said substituents R, R.sub.1, R.sub.4 and R.sub.5 chosen such that the resulting nucleus is of the silver halide sensitizing type; and Q represents the non-metallic atoms required to complete a silver halide sensitizing heterocyclic nucleus of the type used in merocyanine dyes containing from 5 to 6 atoms in the heterocyclic ring.
Parent Case Info
This is a division of application Ser. No. 388,867, filed Aug. 16, 1973, now U.S. Pat. No. 3,936,308.
US Referenced Citations (4)
Divisions (1)
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Number |
Date |
Country |
Parent |
388867 |
Aug 1973 |
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