Novel compound for color-producing composition, and recording material
AssigneeChemipro Kasei Kaisha, Ltd.
InventorsKazuo Kabashima, Hiroshi Kobayashi, Tetsurou Iwaya
Life of this patent
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Abstract
A urea-urethane compound having one or more urea groups and one or more urethane groups in the molecular structure, the number of said urea groups (A) and the number of said urethane groups (B) satisfying the following numerical formula: 10≧(A+B)≧3 wherein each of A and B is an integer of 1 or more.
Claims86
A urea-urethane compound having one or more urea groups and one or more urethane groups in the molecular structure, the number of said urea groups (A) and the number of said urethane groups (B) satisfying the following numerical formula:
- 10≧(A+B)≧3
- wherein each of A and B is an integer of 1 or more.
A urea-urethane compound represented by any of the following formulas (I) to (VI):
- 73
- wherein X and Z are independently an aromatic compound residue, a heterocyclic compound residue or an aliphatic compound residue, each of the residues being able to have one or more substituents, and Y0 is a group selected from the group consisting of tolylene group, xylylene group, naphthylene group, hexamethylene group and -φ-CH2-φ- group wherein -φ- is a phenylene group;
- 74
- wherein X and Y are independently an aromatic compound residue, a heterocyclic compound residue or an aliphatic compound residue, each of the residues being able to have one or more substituents;
- 75
- wherein X and Y are independently an aromatic compound residue, a heterocyclic compound residue or an aliphatic compound residue, α is a residue having a valence of 2 or more, and n is an integer of 2 or more, each of the residues being able to have one or more substituents;
- 76
- wherein Z and Y are independently an aromatic compound residue, a heterocyclic compound residue or an aliphatic compound residue, β is a residue having a valence of 2 or more, and n is an integer of 2 or more, each of the residues being able to have one or more substituents;
- 77
- wherein at least one hydrogen atom of each benzene ring may be replaced by an aromatic compound residue, an aliphatic compound residue, a heterocyclic compound residue, a nitro group, a hydroxyl group, a carboxyl group, a nitroso group, a nitrile group, a carbamoyl group, a ureido group, an isocyanate group, a mercapto group, a sulfo group, a sulfamoyl group or a halogen atom, each of the residues may have one or more substituents, γ is a group selected from the group consisting of —SO2—, —O—, —(S)n—, —(CH2)n—, —CO—, —CONH— and any of groups represented by the formulas (a);
- 78
- or is absent, and n is 1 or 2;
- and
- 79
- wherein at least one hydrogen atom of each benzene ring may be replaced by an aromatic compound residue, an aliphatic compound residue, a heterocyclic compound residue, a hydroxyl group, a nitro group, a nitrile group, a carbamoyl group, a sulfamoyl group, a carboxyl group, a nitroso group, an amino group, an oxyamino group, a nitroamino group, a hydrazino group, a ureido group, an isocyanate group, a mercapto group, a sulfo group or a halogen atom, each of the residues may have one or more substituents, δ is a group selected from the group consisting of —SO2—, —O—, —(S)n—, —(CH2)n—, —CO—, —CONH—, —NH—, —CH(COOR1)—, —C(CF3)2— and —CR2R3— or is absent, each of R1, R2 and R3 is an alkyl group, and n is 1 or 2.
A urea-urethane compound characterized in that it is represented by the following formula (c) and has a molecular weight of 5,000 or less:
- 80
- wherein R is an aliphatic compound residue, A1 and A2 are independently an aromatic compound residue, the nitrogen atoms of the urea group are directly bonded to the carbon atoms, respectively, of the aromatic rings of A1 and A2, and R, A1 and A2 may have one or more substituents.
A urea-urethane compound characterized by being represented by the following formula (d):
- 81
- wherein R is an aliphatic compound residue, the hydrogen atom of each benzene ring may be replaced by an aromatic compound residue, an aliphatic compound residue or a heterocyclic compound residue, and R may have one or more substituents.
A urea-urethane compound characterized in that it is represented by the following formula (e) or (f), has at least one urethane group and at least one urea group in a total number of not more than 10 and not less than 3, and has a molecular weight of 5,000 or less:
- 82
- wherein R is an aliphatic compound residue, Y is an aromatic compound residue, a heterocyclic compound residue or an aliphatic compound residue, α1 is an aromatic compound residue, heterocyclic compound residue or aliphatic compound residue which is different from Y and has a valence of 2 or more, n is an integer of 2 or more, and each of the residues may have one or more substituents;
- or
- 83
- wherein Z1 and Y are independently an aromatic compound residue or a heterocyclic compound residue, β1 is an aliphatic compound residue having a valence of 2 or more, n is an integer of 2 or more, and each of the residues may have one or more substituents.
A urea-urethane compound characterized by being represented by the following formula (g) or (h):
- 84
- wherein the hydrogen atom of each benzene ring may be replaced by an aromatic compound residue, an aliphatic compound residue or a heterocyclic compound residue, β1 is an aliphatic compound residue having a valence of 2 or more, n is an integer of 2 or more, and each of the aresidues may have one or more substituents;
- or
- 85
- wherein Rs are independently an aliphatic compound residue, the hydrogen atom of each benzene ring may be replaced by an aromatic compound residue, an aliphatic compound residue or a heterocyclic compound residue, each of the residues may have one or more substituents, and γ1 is a group selected from the group consisting of —SO2—, —O—, —(S)n—, —(CH2)n—, —CO—, —CONH—, —NH—, —CH(COOR,)—, —C(CF3)2—, —CR2R3— and any of groups represented by the formulas (a);
- 86
- or is absent, each of R1, R2 and R3 is an alkyl group, and n is 1 or 2.
A urea-urethane composition obtained by reacting a polyisocyanate compound with a hydroxy compound and an amino compound, which is characterized by comprising 50 wt % or more of a urea-urethane compound having at least one urea group and at least one urethane group in a total number of 2 to 10 in the molecular structure and having a molecular weight of 5,000 or less.
A process for producing a urea-urethane composition which is characterized by reacting a polyisocyanate compound with a hydroxy compound so that the ratio of the number of moles of the polyisocyanate compound to the number of hydroxy equivalents of the hydroxy compound may be 100/1 to 1/2, to form one or more urethane groups from some of the isocyanate groups of the polyisocyanate compound, and then adding an amino compound thereto to react the same with the remaining isocyanate groups of the polyisocyanate compound to form one or more urea groups.
A process for producing a urea-urethane composition which is characterized by reacting a polyisocyanate compound with an amino compound so that the ratio of the number of moles of the polyisocyanate compound to the number of amino equivalents of the amino compound may be 100/1 to 1/2, to form one or more urea groups from some of the isocyanate groups of the polyisocyanate compound, and then adding a hydroxy compound thereto to react the same with the remaining isocyanate groups of the polyisocyanate compound to form one or more urethane groups.
A process for producing a urea-urethane composition which comprises reacting an amino compound with a polyisocyanate adduct obtained by the reaction of a polyisocyanate compound with a hydroxy compound, so that the equivalent ratio of isocyanate group to amino group may be 2/1 to 1/100, to form one or more urea groups, and then removing the unreacted amino compound.
A process for producing a urea-urethane composition which comprises reacting a hydroxy compound with a polyisocyanate adduct obtained by the reaction of a polyisocyanate compound with an amino compound, so that the equivalent ratio of isocyanate group to hydroxyl group may be 2/1 to 1/100, to form one or more urethane groups, and then removing the unreacted hydroxy compound.
A color-producing composition comprising a developer comprising a urea-urethane compound, and a colorless or light-colored dye precursor.
A recording material according to either of claims 46 and 47, which is characterized in that the intermediate layer comprises an inorganic pigment and/or an organic pigment.
A heat-sensitive magnetic recording material characterized by comprising a substrate, a heat-sensitive recording layer comprising a urea-urethane compound developer and formed on one side of the substrate, and a magnetic recording layer formed on the other side of the substrate.
A label for heat-sensitive recording characterized by comprising a substrate, a heat-sensitive recording layer comprising a urea-urethane compound developer and formed on one side of the substrate, and an adhesive layer formed on the other side of the substrate.
A multicolor heat-sensitive recording material characterized by comprising a substrate and two heat-sensitive recording layers laminated on one side of the substrate which have different color development temperatures, respectively, and undergo color development in different color tones, respectively, the upper heat-sensitive recording layer comprising either an agent used both as developer and tone reducer, or a reversible developer, and the lower heat-sensitive recording layer comprising a urea-urethane compound developer.
An article for laser marking characterized by having on the surface a heat-sensitive recording layer comprising a colorless or light-colored dye precursor, a urea-urethane compound developer and a recording sensitivity improving agent.
A process for producing an article for laser marking which is characterized by applying on a substrate a color-producing marking agent comprising a colorless or light-colored dye precursor, a urea-urethane compound developer and a recording sensitivity improving agent, and drying the thus treated substrate.
A color-producing marking agent characterized by comprising a colorless or light-colored dye precursor, a urea-urethane compound developer and a recording sensitivity improving agent.
A urea-urethane composition comprising a urea-urethane compound having at least one urea group and at least one urethane group in a total number of 2 to 10 in the molecular structure and having a molecular weight of 5,000 or less and 0.0001 to 50 wt % of a diluent based on the total of the urea-urethane compound and the diluent.
Dependencies are inferred from the claim text.