US 4,891,305 A · Optical information recording element

Abstract

This invention relate to an optical information recording medium, characterized by having an organic thin film recording layer containing at least one of compounds expressed by the general formula (I), (II), (III) and (IV): ##STR1## (wherein in the above formulas, A, B, D and E represent a substituted or non-substituted aryl group; R.sub.1 to R.sub.8 may be the same or different and represent hydrogen atom, halogen atom or alkyl group; Y represents a divalent residue having atomic groups necessary for forming a five-membered ring or six-membered ring; m, n and l represents 0, 1 or 2; ans X.sup.- represents an acid anion); ##STR2## (wherein in the above formulas, A' represents a heterocyclic ring selected from the group of thiazole, oxazole, pyrrole, 3,3-dialkyl indolenine, imidazole, pyridine and quinoline and said heterocyclic ring may be condensed with a benzen ring or naphthalene ring, the aromatic ring of which may have a substituent; D' and E' may be the same or different and represent a substituted or non-substituted aromatic ring or D' and E' may get together to form an aromatic ring or heterocyclic ring; X represents an anion; l represents 0, 1 or 2 and m and n represnt 0, 1, 2 or 3; R.sub.9 represents hydrogen, alkyl group, amino group or halogen atom; and Y represents atomic groups necessary for forming a substituted or non-substituted five-membered ring or six-membered ring).

Claims15

Dependent claims

An optical information recording element, comprising a substrate and an organic, thin-film, recording layer on said substrate, said recording layer having a thickness of 100 .ANG.-10 .mu.m and containing at least one compound of the formula, ##STR154## wherein A' represent (1) a heterocyclic group selected from the group consisting of thiazole, oxazole, pyrrole, 3,3-dialkyl indolenine, imidazole, pyridine and quinoline, or (2) said heterocyclic group condensed with a substituted or unsubstituted benzene ring or a substituted or unsubstituted naphthalene ring;

D' and E' are the same or different and represent a substituted or non-substituted aromatic hydrocarbon group;
X represents an acid anion;
1 represents 0, 1 or 2 and m and n represent 0, 1, 2 or 3;
R.sub.9 represents hydrogen, alkyl, amino or halogen;
and Y represents atomic groups necessary for forming a substituted or non-substituted five-membered ring or six-membered ring, said recording layer containing an amount of said compound effective to cause said recording layer to undergo optical changes in areas irradiated with laser radiation so that information is recorded based on these optical changes.

2 more elements

An optical information recording element comprising a substrate and a recording layer having a thickness of 100 .ANG. to 10 .mu.m and consisting essentially of at least one compound having the formula ##STR158## wherein R.sub.10 is an alkyl selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, secondary butyl, isobutyl, tertiary butyl, n-amyl, tertiary amyl, n-hexyl, n-octyl and tertiary octyl,

a substituted alkyl selected from the group consisting of 2-hydroxyethyl, 3-hydroxypropyl, 4-hydroxybutyl, 2-acetoxyethyl, carboxymethyl, 2-carboxyethyl, 3-carboxypropyl, 2-sulfoethyl, 3-sulfopropyl, 4-sulfobutyl, 3-sulfatepropyl, 4-sulfatebutyl, N-(methylsulfonyl)-carbamylmethyl, 3-(acetylsulfamyl)propyl, and 4-(acetylsulfamyl)butyl,
cyclohexyl,
allyl,
an aralkyl selected from the group consisting of benzyl, phenethyl, alpha-naphthylmethyl and .beta.-naphthylmethyl,
a substituted aralkyl selected from the group consisting of hydroxybenzyl, carboxybenzyl and sulfobenzyl,
phenyl,
a substituted aryl selected from the group consisting of hydroxyphenyl, carboxyphenyl and sulfophenyl;
##STR159## is selected from the group consisting of thiazole, 4-methylthiazole, 4-phenylthiazole, 5-methylthiazole, 5-phenylthiazole, 4,5-dimethylthiazole, 4,5-diphenylthiazole, 4-(2-thienyl)-thiazole,
benzothiazole, 5-chlorobenzothiazole, 5-methylbenzothiazole, 6-methylbenzothiazole, 5,6-dimethylbenzothiazole, 5-bromobenzothiazole, 5-phenylbenzothiazole, 5-methoxybenzothiazole, 6-methoxybenzothiazole, 5,6-dimethoxybenzothiazole, 5,6-dioxymethylene benzothiazole, 5-hydroxybenzothiazole, 6-hydroxybenzothiazole, 4,5,6,7-tetrahydrobenzothiazole,
naphtho(2.1-d)thiazole, naphtho(1.2-d)thiazole, 5-methoxynaphtho(1.2-d)thiazole, 5-ethoxynaphtho(1.2-d)thiazole, 8-methoxynaphtho(2.1-d)thiazole, 7-methoxynaphtho(2.1-d)thiazole,
7-methoxythionaphthene(7.6-d)thiazole,
4-methyloxazole, 5-methyloxazole, 4-phenyloxazole, 4,5-diphenyloxazole, 4-ethyloxazole, 4,5-dimethyloxazole, 5-phenyloxazole,
benzoxazole, 5-chlorobenzoxazole, 5-methylbenzoxazole, 5-phenylbenzoxazole, 6-methylbenzoxazole, 5,6-dimethylbenzoxazole, 5-methoxybenzoxazole, 6-methoxybenzoxazole, 5-hydroxybenzoxazole, 6-hydroxybenzoxazole,
naphtho(2.1-d)oxazole, naphtho(1.2-d) oxazole,
4-methylselenazole, 4-phenylselenazole,
benzoselenazole, 5-chlorobenzoselenazole, 5-methylbenzoselenazole, 5,6-dimethylbenzoselenazole, 5-methoxybenzoselenazole, 5-methyl-6-methoxybenzoselenazole, 5,6-dioxymethylenebenzoselenazole, 5-hydroxybenzoselenazole, 4,5,6,7-tetrahydroxybenzoselenazole,
naphtho(2.1-d) selenazole, naphtho(1.2-d)selenazole
thiazoline, 4-methylthiazoline, 4-hydroxymethyl-4-methylthiazoline, 4,4-bis-hydroxymethylthiazoline,
oxazoline,
selenazoline,
2-quinoline, 6-methylquinoline, 6-chloroquinoline, 6-methoxyquinoline, 6-ethoxyquinoline, 6hydroxyquinoline,
4-quinoline, 6-methoxyquinoline, 7-methylquinoline, 8-methylquinoline,
1-isoquinoline, 3,4-dihydroisoquinoline,
3-isoquinoline,
3,3-dimethylindolenine, 3,3-dimethyl-5-chloroindolenine, 3,3,5-trimethylindolenine, 3,3,7-trimethylindolenine, 3,3-dimethyl-5,7-dichloroindolenine,
3,3-dimethyl-naphtho(1.2-d) pyrrole, 3,3-dimethylnaphtho(2.1-d) pyrrole, 6-chloro-3,3-dimethyl-naphtho(1.2-d) pyrrole,
pyridine 5-methylpyridine,
1-ethyl-5,6dichlorobenzoimidazole,
1-hydroxyethyl-5,6-dichlorobenzoimidazole,
1-ethyl-5-chlorobenzoimidazole,
1-ethyl-5,6-dibromobenzoimidazole,
1-ethyl-5-phenylbenzoimidazole,
1-ethyl-5-fluorobenzoimidazole,
1-ethyl-5-cyanobenzoimidazole,
1-(.beta.-acetoxyethyl)-5-cyanobenzoimidazole,
1-ethyl-5-chloro-6-cyanobenzoimidazole,
1-ethyl-5-fluoro-6-cyanobenzoimidazole,
1-ethyl-5-acetylbenzoimidazole,
1-ethyl-5-carboxybenzoimidazole,
1-ethyl-5-ethoxycarbonylbenzoimidazole,
1-ethyl-5-sulfamylbenzoimidazole,
1-ethyl-5-N-ethylsulfamylbenzoimidazole,
1-ethyl-5,6-difluorobenzoimidazole,
1-ethyl-5,6-dicyanobenzoimidazole,
1-ethyl-5-ethylsulfonylbenzoimidazole,
1-ethyl-5-methylsulfonylbenzoimidazole,
1-ethyl-5-trifluoromethylbenzoimidazole,
1-ethyl-5-trifluoromethylsulfonylbenzoimidazole, and
1-ethyl-5-trifluoromethylsulfinylbenzoimidazole;
##STR160## is selected from the group consisting of ##STR161## wherein D' and E' are selected from the group consisting of phenyl, 4-chlorophenyl, 4-dimethylaminophenyl, 4-diethylamino and 4-dibenzylaminophenyl;
X' represents an acid anion;
1 represents 0, 1 or 2;
and m and n represent 0, 1, 2 or 3.

50 more elements

Dependencies are inferred from the claim text.

Optical information recording element

Life of this patent

Optical information recording element

Life of this patent

Abstract

Claims15