Compositions – Light transmission modifying compositions – Infrared
Patent
1987-08-05
1990-04-03
Rotman, Alan L.
Compositions
Light transmission modifying compositions
Infrared
430616, C07D33300, F21V 904
Patent
active
049138464
ABSTRACT:
An infrared absorbing composition is disclosed, which contains at least one compound selected from compounds represented by formula (I) ##STR1## Compounds represented by formula (II) ##STR2## and compounds represented by formula (III) ##STR3## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.10, R.sup.11, R.sup.12, R.sup.13, R.sup.14, R.sup.17, R.sup.18, R.sup.19, R.sup.20 and R.sup.21, which may be the same or different, each represents a halogen atom, a hydrogen atom, or a substituted or unsubstituted alkyl, aryl, cycloalkyl or heterocyclic group which is bonded to the carbon atom of the benzene ring either directly or via a divalent linking group, or any pair of R.sup.1 to R.sup.5, R.sup.10 to R.sup.14, R.sup.17 to R.sup.21 having adjacent positions on the same ring combine to form a substituted or unsubstituted ring; R.sup.6 and R.sup.7, which may be the same or different, each represents an alkyl group or a substituted or unsubstituted aryl group; and R.sup.8, R.sup.9, R.sup.15, R.sup.16, R.sup.22 and R.sup.23, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a cyano group; or R.sup.8 and R.sup.9, R.sup.15 and R.sup.16, or R.sup.22 and R.sup.23 combine to form a substituted or unsubstituted ring, which may be condensed with one or more additional rings or ring systems which may be further substituted with substituents. The composition selectively absorbs far to near infrared rays having wavelengths of 600 nm or more and are useful as an optical filter.
REFERENCES:
patent: 3588216 (1971-06-01), Bloom
patent: 3620888 (1971-11-01), Buzzell
patent: 3687862 (1972-09-01), Bloom
patent: 3724934 (1973-04-01), Bloom
patent: 3806462 (1979-04-01), Bloom
patent: 4062867 (1977-12-01), Bloom
patent: 4730902 (1988-03-01), Suzuki et al.
patent: 4763966 (1988-08-01), Suzuki et al.
patent: 4767571 (1988-08-01), Suzuki et al.
Dance, et al. "Solvatochromic Dithiolene . . . ", J.C.S. Chem. Comm. 1973, p. 433.
Rehorek, "Nickel (II)-Chelate", Z. Chem. 1976, 16(11), 451-2.
Kirmse, "Dithiolen", Z. Chem. 1977, 17(1), 33-5.
Rehorek, "Complexes with Copper", Z. Chem. 1977, 17(4), 149-50.
Hayashi Gouichi
Suzuki Yoshiaki
Fuji Photo Film Co. , Ltd.
Kilby Scalzo Catherine S.
Rotman Alan L.
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