US 5,178,995 AGranted

Optical information recording medium

AssigneeCanon Kabushiki Kaisha

InventorsTetsuro Fukui, Yoshhiro Oguchi, Kyo Miura, Yoshio Takasu

Life of this patent

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Abstract

An optical information recording medium comprises at least one compound, selected from the compounds of the general formulae (1-I) to (3-III) shown and pyrylium compounds, and a metal chelate compounds in the recording medium.

Claims6

Dependent claims

A thermal optical information recording medium capable of having information recorded thereon by a laser beam in the form of optically detectable pits, said recording medium comprising a recording material, which comprises (i) at least one compound selected from the group consisting of general formulae (1-I) to (3-III) shown below and pyrylium compounds, and (ii) a nonionic metal chelate compound:

##STR294## wherein R.sub.1-1, R.sub.1-2, R.sub.1-3, R.sub.1-4 and R.sub.1-5 each represent hydrogen, alkyl, substituted alkyl, cyclic alkyl, alkenyl, aralkyl, substituted aralkyl, aryl, cyclic alkyl, alkenyl, aralkyl, substituted aralkyl, aryl, substituted aryl, styryl, substituted styryl, heterocyclic ring or substituted heterocyclic ring;
m.sub.1-1 is 0 or 1, n.sub.1-1 is 0, 1 or 2;
and X.sub.1-1.sup..crclbar. is an anion, ##STR295## wherein A.sub.2-1, B.sub.2-1, D.sub.2-1 and E.sub.2-1 each represent hydrogen atom, alkyl, alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl;
Y.sub.2-1 represents a divalent residue having a group of atoms necessary for the completion of a 5- or 6-membered ring;
R.sub.2-1, R.sub.2-2, R.sub.2-3, R.sub.2-4 and R.sub.2-5 each represent hydrogen atom, halogen atom or alkyl;
X.sub.2-1.sup..crclbar. represents an anion;
m.sub.2-1 and n.sub.2-1 each represent 0, 1 or 2, ##STR296## wherein A.sub.2-1, B.sub.2-1, D.sub.2-1 and E.sub.2-1 each represent hydrogen atom, alkyl, alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl;
Y.sub.2-1 represents a divalent residue having a group of atoms necessary for the completion of a 5- or 6-membered ring;
R.sub.2-1, R.sub.2-2 and R.sub.2-3 each represent hydrogen atom, halogen atom or alkyl;
X.sub.2-1.sup..crclbar. represents an anion, ##STR297## wherein Z.sub.2-1.sup..crclbar. represents ##STR298## A.sub.2-1, B.sub.2-1, D.sub.2-1 and E.sub.2-1 each represent hydrogen atom, alkyl, alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl;
R.sub.2-1, R.sub.2-2, R.sub.2-3 and R.sub.2-4 each represent hydrogen atom, halogen atom or alkyl;
m.sub.2-1 and n.sub.2-1 each represent 0, 1 or 2, ##STR299## (in the general formulae, and, R.sub.3-1, R.sub.3-2, R.sub.3-3, R.sub.3-4, R.sub.3-5, R.sub.3-6 and R.sub.3-7 each represent hydrogen atom, halogen atom or monovalent organic residue;
or a substituted or unsubstituted fused ring may be formed by at least one combination of R.sub.3-1 and R.sub.3-2, R.sub.3-2 and R.sub.3-3, R.sub.3-3 and R.sub.3-4, R.sub.3-4 and R.sub.3-5, R.sub.3-5 and R.sub.3-6, and R.sub.3-6 and R.sub.3-7 ;
A.sub.3-1 represents divalent organic residue;
and Z.sub.3-1.sup..crclbar. represents anion residue),
wherein the metal chelate compound is at least one compound selected from the compounds (1)-(8) shown below:
(1) thiosalicylaldoxime type compound represented by the following formula:
##STR300## wherein each R.sub.15 represents hydrogen atom, hydroxyl, alkyl or aryl, and may be also bonded to another R.sub.15 ;
each R.sub.16 represents alkyl, halogen atom, hydrogen atom, nitro or benzo-fused type group;
and the center metal M represents Cu, Ni, Co or Pd,
(2) oxyxanthione type compound:
##STR301## wherein each R.sub.23 represents hydrogen atom, halogen atom or alkyl;
and M represents Cu or Ni,
(3) pyromeconic acid type compound:
##STR302## wherein R.sub.24 represents hydrogen atom or alkyl;
and M represents Cu, Ni, Co or Mn,
(4) mercaptobenzoazole type compound:
##STR303## wherein each R.sub.27 represents sulfur atom, substituted or unsubstituted amino group, oxygen atom or thioketone group;
each R.sub.28 represents hydrogen atom, alkyl, halogen atom or amino group;
and M represents Zn, Cu or Ni,
(5) hydroxamic acid type compound:
##STR304## wherein each R.sub.29 represents alkyl, aryl or styryl;
and M represents Cu, Ni or Co,
(6) nitrosohydroxylamine type compound:
##STR305## wherein each R.sub.31 represents alkyl or aryl;
and M represents Cu, Ni or Co,
(7) dioxime type compound:
##STR306## wherein R.sub.32 and R.sub.33 each represent alkyl or aryl;
and M represents Ni, and
(8) anthranilic acid type compound:
##STR307## wherein each R.sub.41 represents hydrogen atom, halogen atom, alkyl, acyl, nitro or alkoxyl;
and M represents Zn, Cu, Ni or Co.

39 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/679,144Filed 28 Mar 1991 · continuation
Priority: JP 61-22113618 Sep 1986
Granted: 12 Jan 1993
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G11B 7/249
Comprising organic materials only: containing organometallic compounds
C09B 57/10
Other synthetic dyes of known constitution: metal complexes of organic compounds not being dyes in uncomplexed form
G11B 7/246
Comprising organic materials only: containing dyes
G11B 7/247
Containing dyes: methine or polymethine dyes

Family

Serial97,162Parent of this continuation · filed 16 Sep 1987
Serial405,580Parent of this continuation · filed 8 Sep 1989
US 5,178,995 AThis patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

##STR294## wherein R.sub.1-1, R.sub.1-2, R.sub.1-3, R.sub.1-4 and R.sub.1-5 each represent hydrogen, alkyl, substituted alkyl, cyclic alkyl, alkenyl, aralkyl, substituted aralkyl, aryl, cyclic alkyl, alkenyl, aralkyl, substituted aralkyl, aryl, substituted aryl, styryl, substituted styryl, heterocyclic ring or substituted heterocyclic ring;
m.sub.1-1 is 0 or 1, n.sub.1-1 is 0, 1 or 2;
and X.sub.1-1.sup..crclbar. is an anion, ##STR295## wherein A.sub.2-1, B.sub.2-1, D.sub.2-1 and E.sub.2-1 each represent hydrogen atom, alkyl, alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl;
Y.sub.2-1 represents a divalent residue having a group of atoms necessary for the completion of a 5- or 6-membered ring;
R.sub.2-1, R.sub.2-2, R.sub.2-3, R.sub.2-4 and R.sub.2-5 each represent hydrogen atom, halogen atom or alkyl;
X.sub.2-1.sup..crclbar. represents an anion;
m.sub.2-1 and n.sub.2-1 each represent 0, 1 or 2, ##STR296## wherein A.sub.2-1, B.sub.2-1, D.sub.2-1 and E.sub.2-1 each represent hydrogen atom, alkyl, alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl;
Y.sub.2-1 represents a divalent residue having a group of atoms necessary for the completion of a 5- or 6-membered ring;
R.sub.2-1, R.sub.2-2 and R.sub.2-3 each represent hydrogen atom, halogen atom or alkyl;
X.sub.2-1.sup..crclbar. represents an anion, ##STR297## wherein Z.sub.2-1.sup..crclbar. represents ##STR298## A.sub.2-1, B.sub.2-1, D.sub.2-1 and E.sub.2-1 each represent hydrogen atom, alkyl, alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl;
R.sub.2-1, R.sub.2-2, R.sub.2-3 and R.sub.2-4 each represent hydrogen atom, halogen atom or alkyl;
m.sub.2-1 and n.sub.2-1 each represent 0, 1 or 2, ##STR299## (in the general formulae, and, R.sub.3-1, R.sub.3-2, R.sub.3-3, R.sub.3-4, R.sub.3-5, R.sub.3-6 and R.sub.3-7 each represent hydrogen atom, halogen atom or monovalent organic residue;
or a substituted or unsubstituted fused ring may be formed by at least one combination of R.sub.3-1 and R.sub.3-2, R.sub.3-2 and R.sub.3-3, R.sub.3-3 and R.sub.3-4, R.sub.3-4 and R.sub.3-5, R.sub.3-5 and R.sub.3-6, and R.sub.3-6 and R.sub.3-7 ;
A.sub.3-1 represents divalent organic residue;
and Z.sub.3-1.sup..crclbar. represents anion residue),
wherein the metal chelate compound is at least one compound selected from the compounds (1)-(8) shown below:
(1) thiosalicylaldoxime type compound represented by the following formula:
##STR300## wherein each R.sub.15 represents hydrogen atom, hydroxyl, alkyl or aryl, and may be also bonded to another R.sub.15 ;
each R.sub.16 represents alkyl, halogen atom, hydrogen atom, nitro or benzo-fused type group;
and the center metal M represents Cu, Ni, Co or Pd,
(2) oxyxanthione type compound:
##STR301## wherein each R.sub.23 represents hydrogen atom, halogen atom or alkyl;
and M represents Cu or Ni,
(3) pyromeconic acid type compound:
##STR302## wherein R.sub.24 represents hydrogen atom or alkyl;
and M represents Cu, Ni, Co or Mn,
(4) mercaptobenzoazole type compound:
##STR303## wherein each R.sub.27 represents sulfur atom, substituted or unsubstituted amino group, oxygen atom or thioketone group;
each R.sub.28 represents hydrogen atom, alkyl, halogen atom or amino group;
and M represents Zn, Cu or Ni,
(5) hydroxamic acid type compound:
##STR304## wherein each R.sub.29 represents alkyl, aryl or styryl;
and M represents Cu, Ni or Co,
(6) nitrosohydroxylamine type compound:
##STR305## wherein each R.sub.31 represents alkyl or aryl;
and M represents Cu, Ni or Co,
(7) dioxime type compound:
##STR306## wherein R.sub.32 and R.sub.33 each represent alkyl or aryl;
and M represents Ni, and
(8) anthranilic acid type compound:
##STR307## wherein each R.sub.41 represents hydrogen atom, halogen atom, alkyl, acyl, nitro or alkoxyl;
and M represents Zn, Cu, Ni or Co.

39 more elements

Facts

Application

07/679,144Filed 28 Mar 1991 · continuation

Priority

JP 61-22113618 Sep 1986

Granted

12 Jan 1993

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

G11B 7/249
Comprising organic materials only: containing organometallic compounds
C09B 57/10
Other synthetic dyes of known constitution: metal complexes of organic compounds not being dyes in uncomplexed form
G11B 7/246
Comprising organic materials only: containing dyes
G11B 7/247
Containing dyes: methine or polymethine dyes