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  • C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
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  • C07C323/18—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and singly-bound oxygen atoms bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton
  • C07C323/21—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and singly-bound oxygen atoms bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton with the sulfur atom of the thio group bound to a carbon atom of a six-membered aromatic ring being part of a condensed ring system
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  • C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
  • C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
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  • C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
  • C07C323/52—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
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  • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
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  • C07C229/06—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton
  • C07C229/10—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
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  • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
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  • C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
  • C07C271/10—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
  • C07C271/18—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by doubly-bound oxygen atoms
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  • C07C43/00—Ethers; Compounds having groups, groups or groups
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  • C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
  • C07C43/04—Saturated ethers
  • C07C43/10—Saturated ethers of polyhydroxy compounds
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  • C08G18/3868—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur containing groups having sulfur atoms between two carbon atoms, the sulfur atoms being directly linked to carbon atoms or other sulfur atoms containing groups having one sulfur atom between two carbon atoms the sulfur atom belonging to a sulfide group
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  • C08G18/4833—Polyethers containing oxyethylene units
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  • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
  • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
  • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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  • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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  • C08G18/7642—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring containing at least one isocyanate or isothiocyanate group linked to the aromatic ring by means of an aliphatic group containing at least two isocyanate or isothiocyanate groups linked to the aromatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate groups, e.g. xylylene diisocyanate or homologues substituted on the aromatic ring
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• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
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• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C7/00—Optical parts
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Definitions

• the present invention relates to compounds for optical materials, curable compositions, cured products, and optical articles.
• Such a photochromic lens can be obtained, for example, by curing a polymerizable composition containing a photochromic compound whose structure changes depending on the amount of ultraviolet rays.
• a technique for improving photochromic performance a technique for suppressing aggregation of a photochromic compound in a cured product to improve dispersibility has been proposed (Patent Documents 1 to 3).
• An object of the present invention is to provide a novel compound for an optical material, and a curable composition, a cured product, and an optical article containing the compound for the optical material.
• the present invention includes the following inventions.
• 1. A compound for an optical material represented by the following formula (Ia).
• X 1 and X 2 are NH, S, or O, respectively.
• R 1 is a 1 to 30 valent organic residue.
• R 1 is a monovalent, divalent, trivalent, tetravalent or hexavalent organic residue.
• ⁇ + ⁇ is 1 to 6, C (CH 2 O) ⁇ (CH 2 CH 3 ) ⁇ - CH 2 OCH 2- C (CH 2 O) ⁇ (CH 2 CH 3 ) ⁇ (IIId)
• ⁇ is 0 to 3
• ⁇ + ⁇ is 3
• ⁇ is 0 to 3
• ⁇ is 0 to 3
• ⁇ + ⁇ is 3.
• ⁇ + ⁇ are 1 to 6.
• the R 1 is an organic residue selected from the group consisting of the formulas (4c), (4b), (5d), (5a), (6h), (6a), and (6e) described later in the above item 1.
• the R 3 is a group composed of a block copolymer of a polymer having ⁇ (CH 2 CH 2 O) ⁇ as a repeating unit and a polymer having (CH 2 CH (CH 3) O) ⁇ as a repeating unit.
• the compound for an optical material according to any one of the above items 1 to 4.
• R 3 is a group composed of a block copolymer represented by the following formula (IIa). -(CH 2 CH 2 O) x- (CH 2 CH (CH 3 ) O) y- (CH 2 CH 2 O) z- (IIa)
• x is an integer of 0 to 20
• y is an integer of 5 to 40
• z is an integer of 1 to 20.
• a novel compound for an optical material, and a curable composition, a cured product, and an optical article containing the compound for the optical material are provided.
• the photochromic cured product and the optical article containing the compound for an optical material of the present invention have excellent photochromic characteristics such as maximum absorption wavelength ( ⁇ max), color development concentration, and fading half-life [ ⁇ 1/2 (sec)], and have excellent color development durability. Also excellent.
• X 1 and X 2 are NH, S, or O, respectively. It is preferable that X 1 and X 2 are NH or S, respectively. When an amine compound in which X 1 and X 2 are NH and a thiol compound in which S is used as materials, a cured product having high durability and photochromic properties tends to be obtained. It is more preferable that X 1 and X 2 are S, respectively.
• A is an integer from 0 to 29. a is preferably 0, 1, or 2, and a is more preferably 0. b is 0 or 1. b is preferably 0. That is, when a compound having no S or NH is used, a cured product having high durability and photochromic properties tends to be obtained.
• R 1 is a 1 to 30 valent organic residue.
• R 1 is preferably a monovalent, divalent, trivalent, tetravalent, pentavalent, hexavalent, 7-valent, or 10-valent organic residue, and is preferably divalent, trivalent, tetravalent, or hexavalent. It is more preferable that it is an organic residue of. When a compound having a large valence of organic residues is used, a cured product having excellent photochromic properties tends to be obtained. Details of the organic residues will be described later.
• R 2 is H or CH 3 .
• R 2 is preferably H.
• C is 0 or 1.
• a compound for an optical material having a structure in which c is 1, that is, a subscript c is added, the durability of the cured product tends to be increased.
• c is 0, that is, when a compound for an optical material having no structure with a subscript c is used, a cured product having both durability and photochromic properties tends to be obtained.
• n is an integer of 3 to 20. It is more preferable that m is an integer of 4 or more.
• R 3 is a homopolymer of one repeating unit selected from the group a random copolymer of at least two repeating units selected from the group, or at least two kinds of repeating selected from the group It is a block copolymer of the unit.
• R 3 is a group comprising a polymer, a flexible chain having a relatively flexible structure.
• region near the flexible chain R 3 tends to flexibility is increased.
• the photochromic compound or the like located in the vicinity of the flexible chain R 3 the compound which produces a structural change, the structural change is prevented difficult. Therefore, the use of optical materials for compounds according to the embodiment with a flexible chain R 3, enhanced the photochromic performance of the cured product.
• the soft chain R 3 since the soft chain R 3 is linked via a structure in which the organic residue R 1 is optionally attached with the subscripts c and b, the soft chain R 3 is linked. It is easier to increase the flexibility of the area in the vicinity of the, and the durability can be increased over a long period of time.
• R 3 is a polymer of repeating units selected from the group consisting of-(CH 2 CH 2 O)-,-(CH 2 CH (CH 3 ) O)-, and-(CH 2 ) m O-. It is preferably a group consisting of at least two repeating unit random copolymers selected from the group or at least two repeating unit block copolymers selected from the group.
• an optical material compound containing a polymer having ⁇ (CH 2 CH 2 O) ⁇ as a repeating unit is used, a cured product having excellent durability tends to be obtained.
• R 3 is a group consisting of a block copolymer of a polymer having-(CH 2 CH 2 O) -as a repeating unit and a polymer having-(CH 2 CH (CH 3) O)- as a repeating unit. Is preferable.
• the polymer having-(CH 2 CH 2 O)- as a repeating unit is an organic residue via a polymer having- (CH 2 CH (CH 3) O)-as a repeating unit. It is preferably located so as to face R 1 , that is, it is located outside in the structural formula of the polymer for optical materials. When a compound for an optical material having such a structure is used, the durability of the cured product tends to be further enhanced.
• the number of repetitions of each repeating unit is, for example, 2 or more and 30 or less, preferably 5 or more and 20 or less, more preferably 7 to 16, and even more preferably 7, 9, 10, 11, 12 , 15, or 16.
• a compound for an optical material having a large number of repetitions is used, a cured product having high photochromic properties tends to be obtained.
• the number of repeating units is excessively large, the durability and photochromic properties of the cured product may decrease.
• R 3 is a group composed of a block copolymer represented by the following formula (IIa).
• a compound for an optical material containing such a structure is used, the durability and photochromic property of the cured product tend to be improved.
• x is an integer of 0 to 20
• y is an integer of 5 to 40
• z is an integer of 1 to 20.
• the compound for an optical material in which R 4 is H is suitable as a material for a polyurethane resin.
• the compound for an optical material in which R 4 is a glycidyl group is suitable as a material for an epoxy resin or an acrylic resin.
• d is an integer from 1 to 30.
• a + d is an integer of 1 to 30.
• d is, for example, 1, 2, 3, 4, 5, 6, or 7.
• the ratio of the valence of d and the organic residues R 1 (d / valence) is preferably 0.5 or more, more preferably 0.8 or more, and more preferably 1. That is, the bond of the organic residues R 1, higher proportion of the subscript d is affixed structure is bond.
• Organic residue R 1 The structure of the organic residue R 1, will be described with reference to specific examples. In the illustrated structural formula, the portion with a wavy line means that it is a bond that joins with another structure.
• Specific examples of the organic residue R 1 include a group represented by the following formula.
• Specific examples of the monovalent organic residue include an alkyl group having 1 to 20 carbon atoms, a polyoxyethylene monomethyl ether group, a propionic acid derivative group represented by the following formula (2a), and the like.
• R 6 is an alkyl group having 1 to 20 carbon atoms or a polyoxyethylene monomethyl ether group.
• divalent organic residue examples include an alkylene group having 1 to 20 carbon atoms, a polyoxyethylene glycol group, a divalent propionic acid derivative group represented by the following formula (3a), and the following formula (3b).
• divalent organic residue examples include a polyoxyethylene-block-polyoxypropylene-block-polyoxyethylene glycol group represented.
• R 5 represents an alkylene group having 1 to 20 carbon atoms, or a polyoxyethylene group.
• trivalent organic residue examples include a trimethylolpropane tripropionate derivative group represented by the following formula (4c), a glycerol derivative group represented by the following formula (4a), and a tri represented by the following formula (4b). Examples thereof include a trimethylolpropane derivative group.
• Examples of the tetravalent organic residue include a ditrimethylolpropanetetrapropionate derivative group, a pentaerythritol tetrapropionate derivative group represented by the following formula (5d), a pentaerythritol group represented by the following formula (5a), and a following formula.
• Examples thereof include a diglycerol group derivative group represented by (5b), an erythritol derivative group represented by the following formula (5c), and the like.
• Examples of the pentavalent organic residue include a D-glucopyranose group represented by the following formula (6d).
• the hexavalent organic residue includes a dipentaerythritol hexapropionate derivative group represented by the following formula (6h), a dipentaerythritol group represented by the following formula (6a), and a sorbitol group represented by the following formula (6b).
• Mannitol group represented by the following formula (6c) and the like can be mentioned. Mannitol is a stereoisomer of sorbitol.
• Examples of the monovalent to 21-valent organic residue include a ⁇ -cyclodextrin group represented by the following formula (6e).
• a ⁇ -cyclodextrin group represented by the following formula (6e).
• the binding sites are randomly selected.
• Non-bonded parts are modified with, for example, OH or CH 3.
• Examples of monovalent to 18-valent organic residues include an ⁇ -cyclodextrin group represented by the following formula (6f).
• ⁇ -cyclodextrin group if the valence is less than 18 valences, the binding sites are randomly selected.
• Non-bonded parts are modified with, for example, OH or CH 3.
• Examples of monovalent to 24-valent organic residues include a ⁇ -cyclodextrin group represented by the following formula (6 g). In the ⁇ -cyclodextrin group, if the valence is less than 24, the binding site is randomly selected. Non-bonded parts are modified with, for example, OH or CH 3.
• the organic residue R 1 is preferably an organic residue of a compound represented by the following formulas (IIIa), (IIIb), (IIIc) or (IIId).
• the organic residue represented by the formula (IIIa) is a 1- to tetravalent pentaerythritol derivative group.
• the organic residue represented by the formula (IIIb) is a 1- to tetravalent pentaerythritol propionate derivative group.
• the organic residue represented by the formula (IIIc) is a 1- to hexavalent dipentaerythritol propionate derivative group.
• the organic residue represented by the formula (IIId) is a 1- to hexavalent dipentaerythritol derivative group.
• R randomly selected from R are the molecular chains shown below.
• -R - (CH 2 CH 2 O) 7 - (CH 2 CH (CH 3) O) 16 - (CH 2 CH 2 O) 7 -H
• the method for synthesizing the compound for an optical material is not particularly limited.
• a compound for an optical material according to an embodiment can be obtained by a Michael addition reaction.
• the Michael addition reaction is, for example, a reaction represented by the following reaction formula 1, and known reaction conditions can be used (Non-Patent Document 1).
• a compound having a structure of the organic residue R 1 which acts as a nucleophile after mixing the compound with an activated polymer radical R 3 structure with respect to nucleophilic attack, under a nitrogen atmosphere By stirring for a certain period of time, the compound for an optical material according to the embodiment can be synthesized.
• Examples of the compound having the structure of the organic residue R 1 which acts as a nucleophile for example, bonds of the organic residues R 1 as described above is OH, a compound modified with SH or NH 2.
• Specific examples of the compound having the structure of the organic residue R 1 which acts as a nucleophile for example, tridecyl (3-mercaptopropionate), trimethylolpropane tris (3-mercaptopropionate), pentaerythritol tetrakis ( 3-mercaptopropionate), dipentaerythritolhexakis (3-mercaptopropionate), and the like.
• the compound having a polymeric group R 3 structure for example, polyethylene glycol monoacrylate, polyethylene glycol polypropylene glycol polyethylene glycol, and the like.
• Compounds with activated polymer radical R 3 structure with respect to nucleophilic attack for example, a compound having a polymeric group R 3 structure, obtained by acrylate process.
• Nucleophilic substitution reaction The compound for optical materials according to the embodiment can also be synthesized by, for example, a nucleophilic substitution reaction.
• the nucleophilic substitution reaction is, for example, a reaction represented by the following reaction formula 2, and known reaction conditions can be used.
• a compound having a polymeric group R 3 structure acting as a nucleophile anion with a base after mixing the organic residues R 1 having a leaving group L which is activated to nucleophilic attack By stirring for a certain period of time in a nitrogen atmosphere, the compound for an optical material according to the embodiment can be synthesized.
• Specific examples of the compound having a polymeric group R 3 structure acting as a nucleophile polyethylene glycol polypropylene glycol polyethylene glycol, polyethylene glycol polytetramethylene glycol and polyethylene glycol.
• the base used in the nucleophilic substitution reaction include metal hydroxide, sodium hydride, potassium tert-butoxide and the like.
• L is a leaving group and is not particularly limited as long as it forms an ether bond as a result of the nucleophilic substitution reaction.
• a chlorine atom, a bromine atom, an iodine atom, or p-toluene examples thereof include a sulfonyloxy group, a methanesulfonyloxy group, and a trifluoromethanesulfonyloxy group.
• Specific examples of the organic residues R 1 having a leaving group L which is activated to nucleophilic attack pentaerythrityl tetrabromide and the like.
• the nucleophilic substitution reaction can be carried out in a solvent.
• the solvent is not particularly limited as long as it does not interfere with the nucleophilic substitution reaction, and examples thereof include aprotic polar solvents such as tetrahydrofuran, acetonitrile, and dimethylformamide.
• the compound for optical materials (component D) represented by the formula (Ia) can be used as a constituent component of the curable composition.
• a cured product is obtained by curing the curable composition.
• the curable composition can contain a polyisocyanate compound and a polyisothiocyanate compound (component B) in addition to the compound for optical materials (component D) represented by the formula (Ia). Further, at least one selected from the group consisting of an active hydrogen-containing compound (C component), a photochromic compound (A component), a curing accelerator (E component) and other additives may be contained.
• the compound for an optical material can be used as a component of a urethane-based curable composition.
• the urethane-based curable composition contains at least one of a polyisocyanate compound and a polyisothiocyanate compound, that is, a polyiso (thio) cyanate compound (B component), in addition to the compound for an optical material (component D). It is preferable to add the active hydrogen-containing compound (C component) immediately before curing the urethane-based curable composition.
• the content of the compound (D component) for an optical material in the urethane-based curable composition is preferably 1% by mass or more, more preferably 3% by mass or more, and further preferably 8% by mass or more.
• the content of the compound for optical materials (component D) is large, the photochromic property of the cured product tends to increase.
• the content of the compound (D component) for an optical material is preferably 50% by mass or less, more preferably 30% by mass or less, and 20% by mass. It is more preferably% or less.
• the blending amount of the compound for optical material (D component) with respect to a total of 100 parts by mass of the polyiso (thio) cyanate compound (B component) and the active hydrogen-containing compound (C component) is 1 part by mass or more and 50 parts by mass or less. It is more preferably 5 parts by mass or more and 35 parts by mass or less, and further preferably 10 parts by mass or more and 25 parts by mass or less.
• polyiso (thio) cyanate compound (B component) is a compound having two or more isocyanate groups, a compound having two or more isothiocyanate groups, or a compound having one or more isocyanate groups and isothiocyanate groups.
• Polyisocyanate compounds (B component) include aliphatic isocyanate compounds, alicyclic isocyanate compounds, aromatic isocyanate compounds, sulfur-containing heterocyclic isocyanate compounds, sulfur-containing aliphatic isocyanate compounds, aliphatic sulfide-based isocyanate compounds, and aromatic sulfides. Included are based isocyanate compounds, aliphatic sulfone-based isocyanate compounds, aromatic sulfone-based isocyanate compounds, sulfonic acid ester-based isocyanate compounds, aromatic sulfonic acid amide-based isocyanate compounds and the like.
• the isocyanate group of the above isocyanate compound is used as an alcohol, a lactam, a phenol, an oxime, a pyrazole, a thiol, an active methylene compound, a malonic acid diester compound, and an acetoacetic acid. Included are blocked isocyanate compounds blocked with at least one blocking agent selected from the group consisting of ester compounds.
• the amount of the polyiso (thio) cyanate compound (component B) in the urethane-based curable composition is preferably 10 parts by mass or more and 200 parts by mass or less with respect to 100 parts by mass of the active hydrogen-containing compound (C component). It is more preferably 50 parts by mass or more and 150 parts by mass or less.
• polyisocyanate compounds (component B)
• compounds suitable for forming optical articles having excellent transparency and mechanical strength particularly compounds suitable for producing optical articles containing photochromic compounds (component A).
• examples thereof include compounds represented by the following formulas (I) to (VIII).
• the preferred aliphatic isocyanate compound is the following formula.
• R 100 is an alkylene group having 1 to 10 carbon atoms, a part of the methylene groups in the chain of the alkylene group may be a group which is substituted by a sulfur atom.
• Examples thereof include the compounds indicated by.
• the R 100 is an alkylene group having 1 to 10 carbon atoms, and may be a linear group or a branched chain group. Among them, a part of the hydrogen atom of the pentamethylene group, the hexamethylene group, the heptamethylene group, the linear group of the octamethylene group, or the pentamethylene group, the hexamethylene group, the heptamethylene group, and the octamethylene group is methyl. A branched chain-like group substituted with a group is preferable.
• the alkylene group in which a part of the methylene group is substituted with a sulfur atom is preferably —CH 2 CH 2 SCH 2 CH 2 SCH 2 CH 2 -group.
• the compound represented by the formula (I) are pentamethylene diisocyanate, hexamethylene diisocyanate, heptamethylene diisocyanate, octamethylene diisocyanate, 2,4,4-trimethylhexanemethylene diisocyanate, 1,2-bis (2). -Isocyanatoethylthio) ethane and the like can be mentioned. These compounds may be used alone, or two or more kinds of compounds may be used.
• Preferred alicyclic isocyanate compounds and aromatic isocyanate compounds are the following formula (II) and the following formula (III).
• R 101 is an alkyl group having 1 to 4 carbon atoms or a hydrogen atom, and may be the same group or different groups.
• R 102 is an alkyl group having 1 to 4 carbon atoms, and when a plurality of groups are present, it may be the same group or different groups.
• a 100 is an integer of 2 or 3
• b 100 is an integer of 0 to 4
• c 100 is an integer of 0 to 4.
• the difference between the compound represented by the formula (II) and the compound represented by the formula (III) is represented by a compound having a phenyl group (a compound represented by the formula (II)) and a compound having a cyclohexane group (the compound represented by the formula (III)).
• Compound Compound).
• the alkyl group having 1 to 4 carbon atoms may be a linear group or a branched chain group. Of these, R 101 is particularly preferably a hydrogen atom, a methyl group, or an ethyl group. Further, in R 102 , the alkyl group having 1 to 4 carbon atoms may be a linear group or a branched chain group. Of these, R 102 is particularly preferably a methyl group or an ethyl group.
• the compound represented by the formula (II) or the formula (III) are isophorone diisocyanate, xylene diisocyanate (o-, m-, p-), 2,4-tolylene diisocyanate, 2,6-.
• examples thereof include toluene diisocyanate, 1,3-bis (isocyanatomethyl) cyclohexane, and 1,4-bis (isocyanatomethyl) cyclohexane. These compounds may be used alone, or two or more kinds of compounds may be used.
• R 103 is an alkyl group having 1 to 4 carbon atoms or a hydrogen atom, respectively, and may be the same group or different groups, and d 100 is an integer of 0 to 4.
• d 100 is an integer of 0 to 4.
• the difference between the compound represented by the formula (IV) and the compound represented by the formula (V) is that the compound having two phenyl groups (the compound represented by the formula (IV)) and the compound having two cyclohexane groups (formula (V)). ) Is different from the compound).
• the alkyl group having 1 to 4 carbon atoms may be a linear group or a branched chain group.
• R 103 is particularly preferably a hydrogen atom, a methyl group, or an ethyl group.
• Specific examples of the compound represented by the formula (IV) or the above formula (V) include 4,4'-diphenylmethane diisocyanate, dicyclohexylmethane-4,4'-diisocyanate and the like. These compounds may be used alone, or two or more kinds of compounds may be used.
• R 104 is an alkyl group having 1 to 4 carbon atoms or a hydrogen atom, respectively, and may be the same group or different groups, and e 100 is an integer of 0 to 4. .
• the alkyl group having 1 to 4 carbon atoms may be a linear group or a branched chain group.
• R 104 is particularly preferably a hydrogen atom, a methyl group, or an ethyl group.
• These compounds can be used alone or two or more kinds of compounds can be used.
• sulfur-containing heterocyclic isocyanate compound Preferred sulfur-containing heterocyclic isocyanate compounds include the following formula (VII) and the following formula (VIII).
• R 105 is an alkyl group having 1 to 4 carbon atoms or a hydrogen atom, respectively, and may be the same group or different groups.
• R 106 is a methylene group or a sulfur atom, and R 107 is an alkylene group having 1 to 6 carbon atoms or a part of the methylene group in the chain of the alkylene group having 1 to 6 carbon atoms is substituted with a sulfur atom.
• F 100 is an integer of 0 to 2.
• Specific examples of the compound represented by the formula (VII) or the formula (VIII) are 2,5-bis (isocyanatomethyl) thiophene and 2,5-bis (isocyanatomethyl) -1,4-dithiane. , 3,4-Bis (Isocyanatomethyl) tetrahydrothiophene, 4,5-bis (Isocyanatomethyl) -1,3-dithiolane and the like. These compounds may be used alone, or two or more kinds of compounds may be used.
• Chemical reaction products and the like can also be used.
• polyisothiocyanate compound a compound in which the isocyanate group is replaced with the isocyanate group in the polyisocyanate compounds represented by the formulas (I) to (VIII) can be used. More specifically, aliphatic isothiocyanate compounds, alicyclic isothiocyanate compounds, aromatic isothiocyanate compounds, sulfur-containing heterocyclic isothiocyanate compounds, heterocyclic isothiocyanate compounds, sulfur-containing aliphatic isothiocyanate compounds, and sulfur-containing compounds. Examples include aromatic isothiocyanate compounds.
• isothiocyanate compounds include hexamethylene diisothiocyanate, 1,2-diisothiocyanate ethane, 1,3-diisothiocyanate propane, and 1,4-di.
• Examples of the alicyclic isothiocyanate compound and aromatic isothiocyanate compound include p-phenylenediisopropyridene diisothiocyanate, 1,2-diisothiocyanate benzene, 1,3-diisothiocyanate benzene, and 1,4-diisothiocyanate.
• Examples thereof include diisothiocyanate, and 1,1'-methylenebis (4-isothiocyanatebenzene), 1,1'-methylenebis (4-isothiocyanate2-methylbenzene), 1,1'-methylenebis (4-isothiocyanate). Isothiocyanate 3-methylbenzene) and the like.
• Preferred alicyclic isothiocyanate compounds include 2,4-bis (isothiocyanatomethyl) norbornane, 2,5-bis (isothiocyanatomethyl) norbornane, and 2,6-bis (isothiocyanatomethyl) norbornane. , 3,5-Bis (isothiocyanatomethyl) norbornane, norbornane diisothianate and the like.
• Preferred sulfur-containing heterocyclic isothiocyanate compounds include thiophene-2,5-diisothiocyanate, 1,4-dithian-2,5-diisothiocyanate, and 2,5-bis (isothiocyanatomethyl) -1,4. -Dithiane, 4,5-bis (isothiocyanatomethyl) -1,3-dithiolane and the like can be mentioned.
• Examples of the compound having both an isocyanate group and an isothiocyanate group include the following compounds.
• at least one isocyanate group is an isothiocyanate group.
• it is a compound in which at least one isothiocyanate group is an isocyanate group.
• a compound having an iso (thio) cyanate group blocked by a blocking agent is an iso (thio) cyanate group of the above-mentioned polyiso (thio) cyanate compound, and alcohols. Obtained by reacting with at least one blocking agent selected from the group consisting of lactams, phenols, oximes, pyrazoles, thiols, active methylene compounds, malonic acid diester compounds, and acetoacetic acid ester compounds. be able to.
• the conditions for reacting the blocking agent with the iso (thio) cyanate group differ depending on the type of the blocking agent, and may be appropriately determined according to the blocking agent to be selected.
• the protection of the iso (thio) cyanate group by the blocking agent can be confirmed by Fourier transform infrared spectroscopy (FT-IR).
• the pot life of the urethane-based curable composition can be further extended.
• isocyanate compounds include pentamethylene diisocyanate, hexamethylene diisocyanate, heptamethylene diisocyanate, octamethylene diisocyanate, 1,3-bis (isocyanatomethyl) cyclohexane, 1,4-bis (isocyanatomethyl) cyclohexane, isophorone diisocyanate, Norbornan diisocyanate, 2,5-bis (isocyanatemethyl) -bicyclo [2,2,1] -heptane, 2,6-bis (isocyanatemethyl) -bicyclo [2,2,1] -heptane, 1,2-bis (2-Isocyanate ethylthio) ethane, xylene diisocyanate (o-, m-, p-), 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, and 4,4'-diphenylmethane diisocyanate.
• active hydrogen-containing compound (C component) examples include an aliphatic poly (chi) all compound and an aromatic poly (chi) all compound.
• Aliphatic poly (chi) all compounds include aliphatic polyol compounds and aliphatic polythiol compounds.
• Aromatic poly (th) all compounds include aromatic polyol compounds and aromatic polythiol compounds.
• the amount of the active hydrogen-containing compound (C component) in the urethane-based curable composition is preferably 10 parts by mass or more and 200 parts by mass or less with respect to 100 parts by mass of the polyiso (thio) cyanate compound (B component). It is more preferably 80 parts by mass or more and 150 parts by mass or less.
• poly (chi) all compounds as a compound suitable for forming an optical article having excellent transparency and heat resistance, particularly as a compound suitable for producing an optical article containing a photochromic compound (component A).
• examples thereof include compounds represented by the following formulas (IX) to (XVII).
• a preferred aliphatic poly (chi) all compound is the following formula (IX).
• R 108 is a hydrogen atom or the following formula (X).
• R 111 is an alkylene group having 1 to 6 carbon atoms. It is a group synonymous with, and may be the same or different.
• R 109 is a hydrogen atom, a methyl group, or an ethyl group, respectively, and may be the same or different.
• R 110 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and when a plurality of hydrogen atoms are present, they may be the same or different.
• o 100 is 0 to 2
• p 100 is 1 to 6
• q 100 is 0 to 10
• r 100 is 2 to 4
• o 100 + r 100 is 4.
• Examples thereof include the compounds indicated by.
• R 111 is an alkylene group having 1 to 6 carbon atoms, and may be a linear group or a branched chain group. Of these, R 111 is particularly preferably a methylene group, an ethylene group, a trimethylene group, or a propylene group.
• Specific examples of the compound represented by the formula (IX) include trimethylolpropane, pentaerythritol, trimethylolpropanetris (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropionate) and the like. Be done.
• the polyfunctional poly (chi) all compound having an ether bond is represented by the following formula (XI).
• F 100 is an alkyl group having 1 to 6 carbon atoms, respectively, or the following formula (XII).
• R 112 is a hydrogen atom or a group having the same meaning as the above formula (X), and may be the same group or a different group.
• R 113 is a hydrogen atom, a methyl group, or an ethyl group, respectively, and may be the same group or different groups.
• s 100 is 1 to 6, and t 100 is 0 to 10. ).
• Examples thereof include the compounds indicated by.
• F 100 is a group of which at least two are represented by the formula (XII).
• the other group include an alkyl group having 1 to 6 carbon atoms, which may be a chain-like group or a branched chain-like group.
• F 100 is particularly preferably a methyl group, an ethyl group, a trimethyl group, or a propyl group.
• F 100 may be the same group or different groups as long as two or more groups are represented by the formula (XII).
• the polyfunctional polythiol compound has the following formula (XIII).
• R 114 is a group in which a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a part of the methylene group of the alkyl group having 1 to 6 carbon atoms is substituted with a sulfur atom, and when a plurality of R 114s are present. May be the same group or different groups,
• R 115 is an alkylene group having 1 to 10 carbon atoms, and is a group in which a part of the methylene group in the chain of the alkylene group having 1 to 10 carbon atoms is substituted with a sulfur atom, or the group having 1 to 10 carbon atoms.
• u 100 is an integer of 2 to 4
• v 100 is an integer of 0 to 2
• u 100 + v 100 is 4. It is preferable to use the compound indicated by.
• the alkyl group having 1 to 6 carbon atoms may be a linear group or a branched chain group, and among them, R 114 is preferably a hydrogen atom, a methyl group or an ethyl group.
• R 114 is preferably a hydrogen atom, a methyl group or an ethyl group.
• a specific group in which a part of the methylene group in the chain of the alkyl group having 1 to 6 carbon atoms is replaced with a sulfur atom -CH 2 SCH 3 and the like can be mentioned.
• the alkylene group having 1 to 10 carbon atoms may be a linear group or a branched chain group.
• R 115 is particularly preferably a methylene group, an ethylene group, a trimethylene group, or a propylene group.
• Specific groups in which a part of the methylene group in the chain of the alkylene group having 1 to 10 carbon atoms is substituted with a sulfur atom include -CH 2 S- , -CH 2 CH 2 S-, and -CH 2. CH 2 CH 2 S- and the like can be mentioned.
• a group in which a part of the hydrogen atom of the alkyl group having 1 to 6 carbon atoms is substituted with a thiol group a group such as —CH 2 SCH (SCH 2 SH) — can be mentioned.
• Specific examples of the compound represented by the formula (XIII) are 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 1,1,1,1-tetrakis (mercaptomethyl) methane, 1, 1,3,3-tetrakis (mercaptomethylthio) propane, 1,1,2,2-tetrakis (mercaptomethylthio) ethane, 4,7-bismercaptomethyl-3,6,9-trithio-1,11-undecanedithiol , 5,7-Dimercaptomethyl-1,11-Dimercapto-3,6,9-Trithiandecan, 4,8-Dimercaptomethyl-1,11-Dimercapto-3,6,9-Trithiandecan, etc. Can be mentioned.
• the phenyl group-containing polythiol compound has the following formula (XIV).
• R 116 is an alkylene group having 1 to 6 carbon atoms, or a group in which a part of the methylene group in the chain of the alkylene group having 1 to 6 carbon atoms is substituted with a sulfur atom, and w 100 is 3. be.
• Examples thereof include the compounds indicated by.
• the alkylene group having 1 to 6 carbon atoms may be a linear group or a branched chain group.
• R 116 is preferably a methylene group, an ethylene group, a trimethylene group, or a propylene group.
• the group in which a part of the methylene group in the chain of the alkylene group having 1 to 6 carbon atoms is replaced with a sulfur atom is specifically: -CH 2 CH 2 CH 2 SCH 2- , -CH 2 CH 2.
• SCH 2- , -CH 2 SCH 2-, etc. may be mentioned.
• Specific examples of the compound represented by the formula (XIV) include 1,3,5-tris (mercaptopropylthiomethyl) benzene.
• the poly (thi) all compound having a triazine ring is represented by the following formula (XV).
• Each of R 117 is an alkyl group having 1 to 6 carbon atoms or the following formula (XVI).
• R 118 and R 119 are alkylene groups having 1 to 6 carbon atoms.
• R 120 is an oxygen atom or a sulfur atom
• at least two of the R 117s are the groups represented by the formula (XVI), and the R 117s may be the same group or different groups. ⁇ Examples thereof include the compounds indicated by.
• the alkylene group having 1 to 6 carbon atoms may be a linear group or a branched chain group.
• R 118 and R 119 are preferably a methylene group, an ethylene group, a trimethylene group, or a propylene group.
• Specific examples of the compound represented by the formula (XV) include 2-mercaptomethanol and tris- ⁇ (3-mercaptopropionyloxy) -ethyl ⁇ -isocyanurate.
• the compound having a silsesquioxane structure has various molecular structures such as cage-like, ladder-like, and random-like, and is a compound represented by the following formula (XVII).
• a plurality of R 500 may be the same or different from each other, and may be a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a phenyl group, and at least two or more hydroxyl groups in one molecule. And / or an organic group containing a thiol group, where n 100 is an integer from 3 to 100.
• the poly (th) all compound can be used without particular limitation, and a plurality of the poly (th) all compounds can be used in combination in consideration of the photochromic properties and the mechanical properties of the obtained cured product.
• the poly (thio) compound is contained in one molecule. It is preferable to use a poly (thio) all compound having 3 to 6 active hydrogen-containing groups.
• Preferred poly (thi) all compounds include trimethylolpropanthris (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropionate), dipentaerythritol hexakis (3-mercaptopropionate), 4- It is preferably mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, tris- ⁇ (3-mercaptopropionyloxy) -ethyl ⁇ -isosyanurate, among which trimethylolpropanetris (3-mercaptopro). Pionate), pentaerythritol tetrakis (3-mercaptopropionate), and dipentaerythritol hexakis (3-mercaptopropionate) are more preferred.
• dipentaerythritol hexakis (3-mercaptopropionate) is most preferable because it can improve the photochromic property and mechanical properties of the obtained cured product.
• dipentaerythritol hexakis (3-mercaptopropionate) alone as a poly (thi) all compound, but dipentaerythritol hexakis (3-mercaptopropionate) has a viscosity.
• another poly (thritol) compound can be mixed and used for adjusting the viscosity.
• poly (thiane) compounds include trimethylolpropanthris (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropionate), 1,6-hexanediolbis (3-mercaptopropionate), 1,2-bis [(2-mercaptoethyl) thio] -3-mercaptopropane, 2,2-bis (mercaptomethyl) -1,4-butanedithiol, 2,5-bis (mercaptomethyl) -1,4 -Dithiane, 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 1,1,1,1-tetrakis (mercaptomethyl) methane, 1,1,3,3-tetrakis (mercaptomethylthio) propane, 1,1,2,2-tetrakis (mercaptomethylthio) ethane, 4,6-bis (mercaptomethylthio) -1,3-dithiane,
• the photochromic compound (component A) can be used without particular limitation as long as it is a compound exhibiting photochromic properties, and these can be used alone or in combination of two or more.
• photochromic compound component A
• known photochromic compounds such as chromene compounds, flugimid compounds, spiroxazine compounds, and spiropyran compounds can be used without any limitation.
• chromen compound a chromen compound having excellent photochromic properties is known in addition to those described in the above patent documents, and such a chromen compound can be suitably used as the A component.
• a chromen compound examples include JP 2001-011067, JP 2001-011066, JP 2000-344761, JP 2000-327675, and JP 2000-256347.
• Japanese Patent Application Laid-Open No. 2000-229976 Japanese Patent Application Laid-Open No. 2000-22997, Japanese Patent Application Laid-Open No. 2000-229974, Japanese Patent Application Laid-Open No. 2000-229973, Japanese Patent Application Laid-Open No. 2000-229972, Japanese Patent Application Laid-Open No.
• Japanese Patent No. 4256985, WO2007 / 086532 Japanese Patent Application Laid-Open No. 2009-120536, Japanese Patent Application Laid-Open No. 2009-67754 , JP-A-2009-67680, JP-A-2009-57300, Japanese Patent No. 4195615, Japanese Patent No. 41588881, Japanese Patent No. 4157245, Japanese Patent No. 4157239, Japanese Patent No. 4157227, Japanese Patent No. 4118458, Japanese Patent Application Laid-Open No. 2008-74832, Japanese Patent No. 3982770, Japanese Patent No.
• flugide compound examples include JP-A-2-28154, JP-A-62-288830, WO94 / 22850 pamphlet, WO96 / 14596 pamphlet and the like. ing.
• chromen compounds having an indeno [2,1-f] naphtho [1,2-b] pyran skeleton are selected from the viewpoint of photochromic properties such as color density, initial colorability, durability, and fading speed. It is more preferable to use it.
• a photochromic compound having an oligomer chain group in the molecule can also be preferably used.
• Examples of the photochromic compound having such an oligomer chain group include WO2000 / 015630 pamphlet, WO2004 / 041961 pamphlet, WO2009 / 146509 pamphlet, WO2012 / 149599 pamphlet, WO2012 / 162725 pamphlet, WO2013 / 078086 pamphlet, WO2019. It is disclosed in many documents such as Pamphlet No. 013249 and Pamphlet No. WO2019 / 203205.
• the photochromic compounds having an oligomer chain group in these molecules those having the oligomer chain group described in WO2019 / 013249 pamphlet and WO2019 / 203205 pamphlet in order to show better photochromic property and durability. It is preferable to use a photochromic compound.
• photochromic compound (component A) a compound represented by the following formula is preferable.
• the various photochromic compounds (component A) described above may be used alone or in combination of two or more, but the amount used may be small, for example, the polyiso (thio) cyanate compound (B). It may be in the range of 0.001 to 10 parts by mass, particularly 0.01 to 5 parts by mass, with respect to a total of 100 parts by mass of the component) and the active hydrogen-containing compound (C component).
• the compounding ratio of the mass of the polyiso (thio) cyanate compound (B component), the active hydrogen-containing compound (C component), and the compound for optical materials (D component) is particularly high.
• the polyiso (thio) cyanate compound (component B) is based on a total of 100 parts by mass of the polyiso (thio) cyanate compound (component B), the active hydrogen-containing compound (component C), and the compound for optical materials (component D).
• the active hydrogen-containing compound (C component) is preferably in the range of 20 to 75 parts by mass
• the optical material compound (D component) component is preferably in the range of 5 to 40 parts by mass.
• the photochromic properties and durability of the cured product tend to increase.
• This ratio is 25 to 70 parts by mass for the polyiso (thio) cyanate compound (B component), 25 to 70 parts by mass for the active hydrogen-containing compound (C component), and 5 to 35 parts by mass for the compound for optical materials (D component).
• the range is more preferably 30 to 60 parts by mass of the polyiso (thio) cyanate compound (B component), 30 to 60 parts by mass of the active hydrogen-containing compound (C component), and the compound for optical materials (D component). Is more preferably in the range of 10 to 25 parts by mass.
• the urethane-based curable composition may further contain various curing accelerators (component E) in order to rapidly accelerate the polymerization curing thereof, depending on the type of the component described above.
• a urethane or urea reaction catalyst or condensing agent used for the reaction of the hydroxyl group and the thiol group with the isocyanate group and the isothiocyanate group is used as the curing accelerator (component E).
• reaction catalyst for urethane or urea This urethane or urea reaction catalyst is used in the formation of a poly (thio) urethane bond by the reaction of polyiso (thio) cyanate with a polyol or polythiol.
• reaction catalysts for urethane or urea include tertiary amines and their corresponding inorganic or organic salts, phosphines, quaternary ammonium salts, quaternary phosphonium salts, Lewis acids, or organic sulfonic acids. The following can be exemplified as a specific example of this.
• a tertiary amine a tertiary amine and a Lewis acid.
• Tertiary amines triethylamine, tri-n-propylamine, triisopropylamine, tri-n-butylamine, triisobutylamine, triethylamine, hexamethylenetetramine, N, N-dimethyloctylamine, N, N, N', N '-Tetramethyl-1,6-diaminohexane, 4,4'-trimethylethylenebis (1-methylpiperidine), 1,8-diazabicyclo- (5,4,0) -7-undecene.
• Phosphines trimethylphosphine, triethylphosphine, tri-n-propylphosphine, triisopropylphosphine, tri-n-butylphosphine, triphenylphosphine, tribenzylphosphine, 1,2-bis (diphenylphosphine) ethane, 1,2 -Bis (dimethylphosphine) ethane.
• Quaternary ammonium salts tetramethylammonium bromide, tetrabutylammonium chloride, tetrabutylammonium bromide.
• Quaternary phosphonium salts tetramethylphosphonium bromide, tetrabutylphosphonium chloride, tetrabutylphosphonium bromide.
• Lewis acid triphenylaluminum, dimethyltin dichloride, dimethyltinbis (isooctylthioglycolate), dibutyltin dichloride, dibutyltin dilaurate, dibutyl tin maleate, dibutyl tin maleate polymer, dibutyl tin dilysinolate, dibutyl tin bis (dodecyl merca) Petit), dibutyl tin bis (isooctyl thioglycolate), dioctyl tin dichloride, dioctyl tin maleate, dioctyl tin maleate polymer, dioctyl tin bis (butyl maleate), dioctyl
• condensing agent Specific examples of the condensing agent include the following. Inorganic acid; hydrogen chloride, hydrogen bromide, sulfuric acid, phosphoric acid, etc. Organic acid; p-toluenesulfonic acid, camphorsulfonic acid, etc. Acid ion exchange resin; amber light, amber list, etc. Carbodiimide; dicyclohexylcarbodiimide, 1-ethyl-3- (3-dimethylaminopyrrolyl) -carbodiimide.
• the various curing accelerators (E component) described above may be used alone or in combination of two or more, but the amount used may be a so-called catalytic amount, for example, the polyiso (thio) cyanate.
• a small amount in the range of 0.001 to 10 parts by mass, particularly 0.01 to 5 parts by mass may be used with respect to 100 parts by mass of the total of the compound (B component) and the active hydrogen-containing compound (C component).
• the curable composition includes various additives known per se, such as UV absorbers, antioxidants, infrared absorbers, UV stabilizers, antioxidants, antioxidants, and antioxidants, as long as the effects are not impaired. , Fluorescent dyes, dyes, pigments, additives such as fragrances, solvents, leveling agents, internal mold release agents, and polymerization modifiers such as thiols such as t-dodecyl mercaptan, may be added as necessary. can.
• additives known per se such as UV absorbers, antioxidants, infrared absorbers, UV stabilizers, antioxidants, antioxidants, and antioxidants, as long as the effects are not impaired.
• Fluorescent dyes, dyes, pigments, additives such as fragrances, solvents, leveling agents, internal mold release agents, and polymerization modifiers such as thiols such as t-dodecyl mercaptan, may be added as necessary. can.
• an ultraviolet stabilizer in consideration of improving the durability of the photochromic compound (component A).
• ultraviolet stabilizers hindered amine light stabilizers, hindered phenol antioxidants, sulfur-based antioxidants and the like are known.
• Particularly suitable UV stabilizers are bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, 2,6-di-t-butyl-4-methyl-phenol, ethylenebis (oxyethylene).
• Bis [3- (5-t-butyl-4-hydroxy-m-tolyl) propionate] and the like can be mentioned, and commercially available products include Adecastab LA-52, LA-57, LA-62, manufactured by Asahi Denka Kogyo Co., Ltd. LA-63, LA-67, LA-77, LA-82, LA-87, IRGANOX 1010, 1035, 1075, 1098, 1135, 1141, 1222, 1330, 1425, 1520, 259 manufactured by Ciba Specialty Chemicals. , 3114, 3790, 5057, 565 and the like.
• UV absorber Further, considering the improvement of the durability and the photochromic property of the photochromic compound (component A), it is preferable to use an ultraviolet absorber.
• UV absorbers include benzotriazole-based UV absorbers, triazine-based UV absorbers, benzophenone-based UV absorbers, cyanoacrylate-based UV absorbers, diphenylacrylate-based UV absorbers, and phenol-based UV absorbers.
• UV absorbers include an oxanilide-based ultraviolet absorber, a malonic acid ester-based ultraviolet absorber, and a katsura acid ester-based ultraviolet absorber.
• a cyanoacrylate-based UV absorber it is preferable to use a cyanoacrylate-based UV absorber, a diphenyl acrylate-based UV absorber, a phenol-based UV absorber, an oxanilide-based UV absorber, a malonic acid ester-based UV absorber, and a katsura acid ester-based UV absorber. Therefore, it is particularly preferable to use a cinnamon acid ester-based ultraviolet absorber from the viewpoint that durability can be improved without impairing photochromic properties (particularly, color development density) as compared with the case where the ultraviolet absorber is not used.
• an internal mold release agent can be used.
• an internal mold release agent any one that has a mold release effect and does not impair physical properties such as transparency of the resin can be used, but a surfactant is preferably used. Among them, a phosphoric acid ester-based surfactant is preferable.
• the internal mold release agent referred to here includes those having a mold release effect among the various catalysts described above, and may also contain, for example, quaternary ammonium salts and quaternary phosphonium salts. These internal mold release agents are appropriately selected based on the combination with the monomer, polymerization conditions, economy, and ease of handling. Specific examples of the internal release agent of phosphoric acid ester are as follows.
• Alkyl acid phosphate Alkyl acid phosphate; mono-n-butyl phosphate, mono-2-ethylhexyl phosphate, mono-n-octyl phosphate, mono-n-butyl phosphate, bis (2-ethylhexyl) phosphate, di (di (2-ethylhexyl) phosphate) 2-Ethylhexyl), di-n-octyl phosphate, di-n-butyl phosphate, butyl acid phosphate (mono-, di-mixture), ethyl acid phosphate (mono-, di-mixture), butoxyethyl acid phosphate (mono-, di-mixture) Mono-, di-mix), 2-ethylhexyl acid phosphate (mono-, di-mix), isotridene acid phosphate (mono-, di-mix), tetracosyl acid phosphate (mono-, di-
• Acid phosphate (mono-, di-mixture), Other phosphate esters; oleyl acid phosphate (mono-, di-mixture), dibutylpyrophosphate, ethylene glycol acid phosphate (mono-, di-mixture), butoxyethyl acid phosphate (mono-, di-mixture), etc. are exemplified. can.
• a specific wavelength absorber that absorbs light in a specific wavelength range is also available, if necessary, in order to impart desired characteristics to the photochromic optical article, such as blue light cutting ability, fender resistance, and high contrast.
• Blue light absorber Considering that it blocks blue light that is harmful to the eyes, it is preferable to use a blue light absorber.
• a blue light absorber can be used without particular limitation as long as it is a compound having an absorption peak in the range of 400 nm to 450 nm, and a commercially available compound can also be used.
• examples of such a blue light absorber include perylene-based compounds, porphyrin-based compounds, carotenoids, cyanine-based compounds, and the like.
• a porphyrin metal complex having a metal atom in the center can also be used. Commercially available products can also be used as the porphyrin metal complex.
• FDB-001, FDB-002, etc. manufactured by Yamada Chemical Industry Co., Ltd. and products manufactured by Tokyo Chemical Industry Co., Ltd. can be used.
• a porphyrin compound represented by the following formula (XVIII) it is particularly preferable to use a porphyrin compound represented by the following formula (XVIII).
• Y 11 to Y 81 are hydrogen atom and halogen atom, respectively.
• Z 1 to Z 4 are substituted or unsubstituted aryl groups, respectively.
• M is two hydrogen atoms, a divalent metal atom, a trivalent substituted metal atom, a tetravalent substituted metal atom, or a metal oxide.
• Y 11 to Y 81 are a hydrogen atom, a halogen atom, a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, or a cyclic alkyl group having 3 to 10 carbon atoms, respectively.
• Is preferable Z 1 to Z 4 are preferably substituted or unsubstituted aryl groups, respectively.
• M is preferably copper, magnesium, zinc, cobalt, titanium, iron, vanadium, or vanadium oxide.
• suitable porphyrin compounds include copper porphyrin complex, vanadium porphyrin complex, magnesium porphyrin complex, and zinc porphyrin complex.
• Organic dye having an absorption peak in the range of 550 nm to 600 nm Considering the improvement of visibility, it is preferable to use an organic dye having an absorption peak in the range of 550 nm to 600 nm.
• organic dyes include nitro-based compounds, azo-based compounds, anthraquinone-based compounds, slene-based compounds, porphyrin-based compounds, and rare earth metal compounds. Among them, porphyrin-based compounds and rare earth-based compounds are preferable. Furthermore, a porphyrin-based compound is most preferable from the viewpoint of compatibility with the curable composition.
• the porphyrin-based compound may have various substituents on the porphyrin skeleton.
• JP-A-5-194616, JP-A-5-195446, JP-A-2003-105218, JP-A-2008-134618, JP-A-2013-61653, JP-A-2015-180942 The compounds described in WO2012 / 020570 pamphlet, Japanese Patent No. 5626081, Japanese Patent No. 5619472, Japanese Patent No. 5778109, etc. can be preferably used.
• a commercially available product can also be used.
• porphyrin-based compounds include tetraazaporphyrin compounds represented by the following formula (XIX).
• Y 12 , Y 32 , Y 52 , and Y 72 are hydrogen atoms.
• Y 22 , Y 42 , Y 62 , and Y 82 are linear or branched alkyl groups having 1 to 6 carbon atoms, respectively.
• M is a divalent metal atom or a metal oxide atom.
• the linear or branched alkyl group having 1 to 6 carbon atoms includes a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a tert-butyl group, an n-pentyl group, and an isopentyl group.
• the divalent metal atom include Cu, Zn, Fe, Co, Ni, Ru, Pd, Pt, Mn, Mg, Ti, Ba, Cd, Hg, Sn and the like.
• the metal oxide atom include VO, MnO, TiO and the like.
• the other compounding agents may be used alone or in combination of two or more, but the amount used may be small, for example, the total of the polyiso (thio) cyanate compound (component B) and the polyol compound. It can be used in an amount of 0.0001 part to 10 parts by mass with respect to 100 parts by mass, and preferably 0.001 part by mass to 10 parts by mass.
• the acrylic curable composition contains a polymerizable monomer component.
• the acrylic curable composition may contain a photochromic compound (component A), a curing accelerator (component E), and an additive. Examples of the additive include stabilizers and the like.
• the compound for optical materials (component D) can be used as a polymerizable monomer component of an acrylic curable composition.
• the acrylic curable composition may contain at least one of an acrylate compound and a methacrylate compound, that is, a (meth) acrylate compound, in addition to the compound for optical material (component D) according to the embodiment.
• the content of the compound (D component) for an optical material in the acrylic curable composition is preferably 1% by mass or more, more preferably 3% by mass or more, and further preferably 5% by mass or more.
• the content of the compound for optical materials (component D) is preferably 50% by mass or less, more preferably 30% by mass or less, and 20% by mass or less. Is even more preferable.
• the blending amount of the compound for optical material (D component) with respect to 100 parts by mass of the (meth) acrylate compound is preferably 1 part by mass or more and 50 parts by mass or less, and more preferably 5 parts by mass or more and 35 parts by mass or less. ..
• the content of the compound (D component) for an optical material in which R 4 is a (meth) acrylic group is, for example, 90% by mass or more and 100% by mass or less, and occupies most of the acrylic curable composition. May be.
• (meth) acrylate compound for example, a bifunctional (meth) acrylic polymerizable compound, a polyfunctional (meth) acrylic polymerizable compound, a monofunctional (meth) acrylic polymerizable compound and the like can be used, and bifunctional (meth) acrylic polymerizable compounds can be used. Meta) It is preferable to contain an acrylic polymerizable compound.
• bifunctional (meth) acrylic polymerizable compound examples include compounds represented by the following formulas (5), (6) and (7).
• R 14 and R 15 are hydrogen atoms or methyl groups, respectively, j and k are independently integers of 0 or more, and j + k is an average value of 2 or more and 50 or less.
• the polymerizable compound represented by the above formula (5) is usually obtained in the form of a mixture of molecules having different molecular weights. Therefore, j and k are shown as average values.
• Methacrylate (especially average molecular weight 330), polyethylene glycol dimethacrylate (especially average molecular weight 536), polyethylene glycol dimethacrylate (especially average molecular weight 736), tripropylene glycol dimethacrylate, tetrapropylene glycol dimethacrylate, polypropylene glycol dimethacrylate (especially average molecular weight) 536), polyethylene glycol diacrylate (especially average molecular weight 258), polyethylene glycol diacrylate (especially average molecular weight 308), polyethylene glycol diacrylate (especially average molecular weight 508), polyethylene glycol diacrylate (especially average molecular weight 708), polyethylene glycol methacrylate.
• Acrylates (especially average molecular weight 536).
• R 16 and R 17 are hydrogen atoms or methyl groups, respectively.
• R 18 and R 19 are hydrogen atoms or methyl groups, respectively, and are R 20 is a hydrogen atom or a halogen atom.
• 6 H 5 ) -, and l and m are integers of 1 or more, respectively, and l + m is an average value of 2 or more and 30 or less.
• the polymerizable compound represented by the above formula (6) is usually obtained in the form of a mixture of molecules having different molecular weights. Therefore, l and m are shown as average values.
• Specific examples of the compound represented by the above formula (6) include the following bisphenol A di (meth) acrylate.
• R 21 and R 22 are hydrogen atoms or methyl groups, respectively.
• n is a number from 1 to 20 on average, A and A'may be the same or different from each other, and are linear or branched alkylene groups having 2 to 15 carbon atoms, respectively. When a plurality of A's are present, the plurality of A's are the same group. It may be a different group.
• the compound represented by the above formula (7) can be produced by reacting a polycarbonate diol with (meth) acrylic acid.
• examples of the polycarbonate diol used include the following.
• Polycarbonate diol obtained by phosgenation of polyalkylene glycols such as trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, octamethylene glycol, and nonamethylene glycol (those having a number average molecular weight of 500 to 2,000).
• a mixture of two or more polyalkylene glycols eg, a mixture of trimethylene glycol and tetramethylene glycol, a mixture of tetramethylene glycol and hexamethylene diglycol, a mixture of pentamethylene glycol and hexamethylene glycol, tetramethylene glycol and octamethylene).
• Polycarbonate diol number average molecular weight 500-2,000 obtained by phosgenation of a mixture of glycols, a mixture of hexamethylene glycol and octamethylene glycol, etc.
• Polycarbonate diol number average molecular weight 500-2,000 obtained by phosgenation of 1-methyltrimethylene glycol;
• (meth) acrylate compound a bifunctional (meth) acrylic polymerizable compound having a urethane bond may be used.
• the bifunctional (meth) acrylic polymerizable compound having a urethane bond is, for example, a reaction product of a polyol and a polyisocyanate.
• the polyisocyanate include hexamethylene diisocyanate, isophorone diisocyanate, lysine isocyanate, 2,2,4-hexamethylene diisocyanate, dimerate diisocyanate, isopropyridenebis-4-cyclohexyl isocyanate, dicyclohexylmethane diisocyanate, norbornene diisocyanate, and the like.
• Norbornene methane diisocyanate or methylcyclohexane diisocyanate can be mentioned.
• examples of the polyol include ethylene oxide having 2 to 4 carbon atoms, propylene oxide, polyalkylene glycol having a repeating unit of hexamethylene oxide, and polyester diol such as polycaprolactone diol.
• polycarbonate diol polybutadiene diol, ethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,9-nonanediol
• examples thereof include 1,8-nonanediol, neopentyl glycol, diethylene glycol, dipropylene glycol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, and the like.
• reaction mixture obtained by further reacting a urethane prepolymer obtained by the reaction of these polyisocyanates and a polyol with 2-hydroxy (meth) acrylate, or a reaction in which the diisocyanate is directly reacted with 2-hydroxy (meth) acrylate.
• Urethane (meth) acrylate and the like which are mixtures, can also be used.
• Examples of the bifunctional (meth) acrylic polymerizable compound having a urethane bond include U-2PPA (molecular weight 482), UA-122P (molecular weight 1,100) and U-122P (molecular weight 1,) manufactured by Shin-Nakamura Chemical Industry Co., Ltd. 100), U-108A, U-200PA, UA-511, U-412A, UA-4100, UA-4200, UA-4400, UA-2235PE, UA-160TM, UA-6100, UA-6200, U-108.
• the (meth) acrylate compound a bifunctional (meth) acrylic polymerizable compound other than the above may be used.
• examples of such a (meth) acrylate compound include compounds having (meth) acrylic groups at both ends of an alkylene group which may have a substituent.
• a compound having an alkylene group having 6 to 20 carbon atoms is preferable.
• Examples of other (meth) acrylate compounds include bifunctional (meth) acrylate monomers containing a sulfur atom.
• the sulfur atom preferably forms part of a molecular chain as a sulfide group.
• Examples of the polyfunctional (meth) acrylic polymerizable compound include compounds represented by the following formula (8).
• R 23 is a hydrogen atom or a methyl group.
• R 24 is a hydrogen atom or an alkyl group having 1 to 2 carbon atoms.
• R 25 is 3-6 monovalent organic group of 1 to 10 carbon atoms, o is a number of 0 to 3 on average, and p is a number of 3 to 6.
• Examples of the alkyl group having 1 or 2 carbon atoms represented by R 24 preferably a methyl group.
• the organic group represented by R 25, a group derived from a polyol, 3-6 monovalent hydrocarbon group, and an organic group containing 3 to 6 valent urethane bond.
• Trimethylolpropane Trimethacrylate Trimethylolpropane Triacrylate, Tetramethylolmethanetrimethacrylate, Tetramethylolmethanetriacrylate, Tetramethylolmethanetetramethacrylate, Tetramethylolmethanetetraacrylate, Trimethylolpropane Triethylene Glycoltrimethacrylate, Trimethylolpropanetriethylene Glycoltriacrylate, ditrimethylolpropane tetramethacrylate, ditrimethylolpropane tetraacrylate.
• examples of the polyfunctional (meth) acrylic polymerizable compound include a polyfunctional (meth) acrylic polymerizable compound having a urethane bond.
• the polyfunctional (meth) acrylic polymerizable compound having a urethane bond is the polyisocyanate compound described in the bifunctional (meth) acrylic polymerizable compound having a urethane bond, and glycerin, trimethylolpropane, pentaerythritol, and dipentaerythritol. It is a compound obtained by reacting a polyol compound such as the above, and has three or more (meth) acrylate groups in the molecule.
• U-4HA molecular weight 596, functional group number 4
• U-6HA molecular weight 1,019, functional group number 6
• U-6LPA molecular weight 818, functional group number 6
• U-15HA molecular weight 2,300, number of functional groups 15
• polyfunctional (meth) acrylic polymerizable compound a compound other than those described above may be used.
• examples of such a polyfunctional (meth) acrylic polymerizable compound include compounds in which the end of a polyester compound is modified with a (meth) acrylic group.
• Commercially available polyester (meth) acrylate compounds can be used depending on the molecular weight of the polyester compound as a raw material and the modification amount of the (meth) acrylic group.
• tetrafunctional polyester oligomers (molecular weight 2,500 to 3,500, molecular weight CB, EB80, etc.), hexafunctional polyester oligomers (molecular weight 6,000 to 8,000, molecular weight CB, EB450, etc.) , 6-functional polyester oligomer (molecular weight 45,000 to 55,000, Dycel UCB, EB1830, etc.), 4-functional polyester oligomer (particularly, Daiichi Kogyo Seiyaku Co., Ltd., GX8488B, etc. with a molecular weight of 10,000) and the like. ..
• the crosslink density can be improved by the polymerization, and the surface hardness of the obtained cured product can be increased. Therefore, it is particularly preferable to use a polyfunctional (meth) acrylic polymerizable compound in the case of forming a photochromic cured product (laminated product) obtained by a coating method.
• polyfunctional (meth) acrylic polymerizable compound a single component in each component can be used, or a plurality of types described above can be used.
• Examples of the monofunctional (meth) acrylic polymerizable compound include compounds represented by the following formula (9).
• R 26 is a hydrogen atom or a methyl group
• R 27 is a hydrogen atom, a methyldimethoxysilyl group, a trimethoxysilyl group, or a glycidyl group.
• q is an integer from 0 to 10 and r is an integer from 0 to 20.
• Methoxypolyethylene glycol methacrylate (especially average molecular weight 293), methoxypolyethylene glycol methacrylate (especially average molecular weight 468), methoxypolyethylene glycol acrylate (especially average molecular weight 218), methoxypolyethylene glycol acrylate (especially average molecular weight 454), stearyl methacrylate, lauryl methacrylate, Methyl acrylate, ethyl acrylate, butyl acrylate, octyl acrylate, lauryl acrylate, ⁇ -methacryloyloxypropyltrimethoxysilane, ⁇ -methacryloyloxypropylmethyldimethoxysilane, glycidylmethacrylate.
• ⁇ Curing accelerator (E component) As the curing accelerator (component E), at least one of a thermal polymerization initiator and a photopolymerization initiator can be used.
• the thermal polymerization initiator include benzoyl peroxide, p-chlorobenzoyl peroxide, decanoyl peroxide, lauroyl peroxide, and acetyl peroxide as diacyl peroxide.
• peroxy ester examples include t-butylperoxy-2-ethylhexanate, t-butylperoxyneodecanate, cumylperoxyneodecanate, and t-butylperoxybenzoate.
• percarbonate examples include diisopropylperoxydicarbonate and di-sec-butylperoxydicarbonate.
• azo compound examples include azobisisobutyronitrile and 2,2'-azobis (2,4-dimethylvaleronitrile).
• photopolymerization initiator as an acetophenone compound, 1-phenyl-2-hydroxy-2-methylpropan-1-one, 1-hydroxycyclohexylphenylketone, 1- (4-isopropylphenyl) -2-hydroxy-2. -Methylpropan-1-one can be mentioned.
• Examples of the ⁇ -dicarbonyl compound include 1,2-diphenylethandione and methylphenylglycoxylate.
• acylphosphine oxide compound examples include 2,6-dimethylbenzoyldiphenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphinic acid methyl ester, 2, Examples thereof include 6-dichlorobenzoyldiphenylphosphine oxide, 2,6-dimethoxybenzoyldiphenylphosphine oxide and phenylbis (2,4,6-trimethylbenzoyl) phosphine oxide.
• a photopolymerization initiator a known polymerization curing accelerator such as a tertiary amine can also be used in combination.
• the acrylic polymerizable composition may further contain the photochromic compound (component A), the curing accelerator (component E), and other additives described in the urethane-based polymerizable composition in the above-mentioned proportions.
• the curable composition is obtained by mixing a compound for an optical material (component D) and a polyiso (thio) cyanate compound (component B) by a known method.
• a photochromic compound (A component), an active hydrogen-containing compound (C component), a curing accelerator (E component), other additives and the like may be added to the curable composition.
• a urethane-based curable composition is obtained by mixing a polyiso (thio) cyanate compound (B component) and an optical material compound (D component), and then adding an active hydrogen-containing compound (C component) and stirring the mixture.
• the stirring temperature may be adjusted appropriately in the range of 0 to 100 ° C. and the stirring time in the range of 0.1 to 48 hours. It is preferably produced in an atmosphere of an inert gas such as argon or nitrogen in order to suppress the mixing of water.
• the urethane-based curable composition when the polyiso (thio) cyanate compound (component B) and the active hydrogen-containing compound (component C) are mixed, the polymerization reaction can be immediately started to produce a cured product. .. Therefore, it is preferable that the urethane-based curable composition is prepared immediately before the cured product is obtained.
• the first container containing the polyiso (thio) cyanate compound (B component), the active hydrogen-containing compound (C component), the compound for optical materials (D component), and the like are prepared.
• a preparation kit containing a second container containing a mixture of any of the above components may be used.
• the urethane-based curable composition can be prepared by mixing and stirring the contents of the first container and the contents of the second container at a desired timing.
• the acrylic curable composition is obtained by mixing a polymerizable monomer component containing a compound for an optical material (component D) by a known method.
• a photochromic compound (component A), a curing accelerator (component E), an additive, or the like may be added to the acrylic curable composition.
• a cured product is obtained by curing the curable composition.
• a curing method for example, radical polymerization, ring-opening polymerization, anionic polymerization or polycondensation polymerization may be carried out by irradiation with active energy rays such as ultraviolet rays, ⁇ rays, ⁇ rays and ⁇ rays, heat, or a combination of both.
• active energy rays such as ultraviolet rays, ⁇ rays, ⁇ rays and ⁇ rays, heat, or a combination of both.
• the cured product is obtained, for example, by thermal polymerization of the curable composition.
• the temperature may particularly affect the properties of the cured product. This temperature condition is affected by the type and amount of the thermal polymerization initiator and the type of compound, so it cannot be unconditionally limited, but in general, a method of starting polymerization at a relatively low temperature and slowly raising the temperature is used. Suitable. Since the polymerization time also differs depending on various factors as well as the temperature, it is preferable to determine the optimum time according to these conditions in advance, but in general, the conditions are set so that the polymerization is completed in 2 to 48 hours. It is preferable to choose.
• Optical articles such as lenses include a cured product of a curable composition.
• the cured product according to the embodiment is particularly preferably used for a photochromic optical article.
• the photochromic optical article includes a cured product of a curable composition containing a photochromic compound (component A).
• Examples of the photochromic optical article include a photochromic lens.
• the photochromic lens can be manufactured by a known method such as a kneading method, a casting polymerization method, a glass bonding method, and a binder method.
• a photochromic compound-containing curable composition is injected between glass molds held by an elastomer gasket or a spacer, and the composition is sufficiently defoamed, and then in an air furnace or in water.
• a photochromic cured product (photochromic optical article) molded into the form of an optical material such as a lens can be manufactured by casting polymerization by heating.
• an optical substrate such as a lens substrate is arranged so as to form a predetermined void, and a photochromic compound-containing curable composition is injected into the void, and in this state,
• a photochromic lens (a laminate in which a photochromic optical article is laminated) in which a photochromic layer is formed on the surface of an optical substrate can be manufactured by casting polymerization using an inner mold that polymerizes by heating.
• the optical base material is not particularly limited, and an optical base material made of a known plastic can be used. Specific examples thereof include plastic materials such as (meth) acrylic resin, polycarbonate resin, allyl resin, thiourethane resin, urethane resin, and thioepoxy resin.
• the surface of the optical substrate is previously chemically treated with an alkaline solution, an acid solution, etc., corona discharge, plasma discharge, and polishing. It is also possible to improve the adhesion between the photochromic layer and the optical base material by performing physical treatment such as. Of course, it is also possible to provide a transparent adhesive resin layer on the surface of the optical base material.
• a required amount of a photochromic compound-containing curable composition is applied onto an optical substrate such as one glass on which a spacer is arranged, and the other glass or the like is applied onto the coating film. It is obtained by arranging the optical base material of the above and then curing the coating film to join a pair of optical base materials such as glass.
• a photochromic curable composition is applied on a substrate, and the coating film is dried to form an adhesive layer sheet.
• the obtained photochromic sheet is sandwiched between two optical sheets, and these are pressed and joined. In this way, a photochromic laminate in which two optical sheets are bonded via an adhesive layer containing a photochromic compound is obtained.
• a coating liquid in which the photochromic curable composition is dissolved in an organic solvent may be used to prepare the adhesive layer sheet.
• the photochromic laminate thus produced is, for example, mounted in a mold and then injection-molded with a thermoplastic resin (for example, polycarbonate) for an optical substrate such as a lens, whereby the photochromic laminate is formed into a lens.
• a photochromic lens having a predetermined shape laminated on the surface can be obtained.
• this photochromic laminate can also be adhered to the surface of an optical base material such as a lens with an adhesive or the like, whereby a photochromic lens can be obtained.
• the adhesive preferably contains a urethane or urea-based polymerizable compound, and more preferably contains a urethane-based polymerizable compound.
• a polyurethane adhesive is used, the adhesion to the optical substrate can be improved.
• the obtained photochromic cured product / laminated body can exhibit excellent photochromic properties such as color density and fading speed, and is effective for producing an optical substrate having photochromic properties, for example, a photochromic lens (photochromic optical article). Used for.
• the photochromic cured product can be laminated with other functional layers or dyed with a dye such as a disperse dye as long as the effect of the present invention is not impaired.
• a hard coat film using a silane coupling agent or a hard coat agent containing sol as a main component such as silicon, zirconium, antimony, aluminum, tin, and tungsten can be produced on the hard coat film.
• a thin film can be produced by vapor deposition of metal oxides such as SiO 2 , TiO 2 , and ZrO 2.
• Antireflection treatment can be performed with a thin film coated with an organic polymer. Antistatic treatment and the like can also be applied.
• a polarizing film may be laminated for the purpose of imparting polarization characteristics to the obtained photochromic cured product.
• the position of the polarizing film is not particularly limited, and the film may be laminated on the outside of the photochromic cured product, between the photochromic cured product and another layer, or inside the adhesive layer when an adhesive layer is used, but from the viewpoint of adhesiveness.
• a method of burying it in the adhesive layer is preferable.
• the method of laminating the polarizing film is not particularly limited, and a known method may be adopted.
• a method of laminating by polymerizing the photochromic curable composition can be mentioned.
• the glass bonding method it is preferable to laminate the polarizing film on one surface of the optical substrate made of inorganic glass in advance.
• a known thermosetting adhesive or ultraviolet (UV) curable adhesive may be used to bond the optical substrate made of inorganic glass to the polarizing film.
• the polarizing film is not particularly limited, and a commercially available polarizing film can be used.
• a polarizing film having a thickness of 20 to 100 ⁇ m can be preferably used.
• the polarizing film is formed by stretching polyvinyl alcohol dyed with a dichroic substance such as iodine or a dichroic dye.
• dichroic dye contained in the polarizing film a commercially available dichroic dye can be used without limitation.
• azo dyes, anthraquinone dyes and the like can be mentioned.
• the polarizing film may be one in which a cellulose triacetate film is laminated on both sides in order to enhance its function and adhesiveness.
• the thickness of the cellulose triacetate film is preferably 20 to 200 ⁇ m, more preferably 20 to 100 ⁇ m.
• the polarizing film was charged at 40 to 100 ° C. for about 5 seconds to 30 minutes. Heat treatment may be carried out.
• TDMP Tridecylic (3-mercaptopropionate) represented by the following formula (10) (manufactured by Yodo Kagaku Co., Ltd.)
• PEMP Pentaerythritol tetrakis (3-mercaptopropionate) represented by the following formula (11) (manufactured by SC Organic Chemistry Co., Ltd.)
• Blemmer-AE-400 Polyethylene glycol monoacrylate represented by the following formula (12) (manufactured by NOF CORPORATION)
• TMMP Trimethylolpropanetris (3-mercaptopropionate)
• Neutral Alumina MP Alumina N-Super I (Sales: Fuji Film Wako Pure Chemical Industries, Ltd.)
• Pluronic® L31 Polyethylene Glycol Polypropylene Glycol Polyethylene Glycol (Aldrich, Weight Average Molecular Weight 1100)
• Pluronic® L34 Polyethylene Glycol Polypropylene Glycol Polyethylene Glycol (Aldrich, Weight
• Example 4 Synthesis of compound (10a) Pluronic (registered trademark) L-31 (14.3 g, 13.0 mmol) and toluenesulfonic acid monohydrate (0.74 g, 3.9 mmol) are dissolved in 120 mL of toluene. After that, 3-mercaptopropionic acid (4.1 g, 39.0 mmol) was added, and the mixture was heated under reflux at 130 ° C. for 10 hours to carry out dehydration condensation. After the reaction, the solvent was distilled off under reduced pressure, the residue was dissolved in dichloromethane, and the organic layer was washed with 1% aqueous ammonia.
• Pluronic (registered trademark) L-31 (14.3 g, 13.0 mmol) and toluenesulfonic acid monohydrate (0.74 g, 3.9 mmol) are dissolved in 120 mL of toluene. After that, 3-mercaptopropionic acid (4.1 g, 39.0 mmol
• Example 7 Synthesis of compound (13a) Pluronic® L-34 monoacrylate was prepared in the same manner as described in Example 5. After uniformly mixing DPMP (3.15 g, 4.0 mmol) and Pluronic® L-34 monoacrylate (39.5 g, 23.9 mmol), add 15 g of neutral alumina and 5 at room temperature under a nitrogen atmosphere. Stir for hours. After completion of the reaction, 150 mL of toluene was added and the mixture was stirred for 5 minutes. Then, neutral alumina was filtered off (PTFE, 0.5 ⁇ m), and the solvent was distilled off under reduced pressure to obtain compound (13a) (yield: 99%).
• Example 9 Synthesis of compound (15a) Except that Pluronic (registered trademark) L-35 (45.4 g, 23.9 mmol) was used instead of Pluronic (registered trademark) L-34, the same as in Example 8. Synthesis was carried out in the same manner to obtain compound (15a) (yield: 82%). Moreover, when the proton nuclear magnetic resonance spectrum of compound (15a) was measured, the following peaks were shown. ⁇ 1.14 (m, 192H), 3.40-3.70 (m, 520H).
• Example 10 Synthesis of compound (16a) Except that Pluronic (registered trademark) L-44 (47.8 g, 23.9 mmol) was used instead of Pluronic (registered trademark) L-34, the same as in Example 8. Synthesis was carried out in the same manner to obtain compound (16a) (yield: 82%). Moreover, when the proton nuclear magnetic resonance spectrum of compound (16a) was measured, the following peaks were shown. ⁇ 1.14 (m, 252H), 3.40-3.70 (m, 548H).
• Example 11 Synthesis of compound (17a) Except that Pluronic (registered trademark) L-64 (69.3 g, 23.9 mmol) was used instead of Pluronic (registered trademark) L-34, the same as in Example 8. Synthesis was carried out in the same manner to obtain compound (17a) (yield: 80%). Moreover, when the proton nuclear magnetic resonance spectrum of compound (17a) was measured, the following peaks were shown. ⁇ 1.14 (m, 360H), 3.40-3.70 (m, 784H).
• ⁇ Evaluation method ⁇ ⁇ Photochromic characteristics> The photochromic cured products obtained in Examples and Comparative Examples were evaluated by the methods shown below. The following values were measured using a spectrophotometer (instantaneous multi-channel photodetector MCPD3000) manufactured by Otsuka Electronics Co., Ltd.
• Fading half-life [ ⁇ 1/2 (sec)]: At 23 ° C., after light irradiation for 300 seconds, when the light irradiation is stopped, the absorbance of the sample at the maximum absorption wavelength is 1 of ⁇ A 300 ⁇ A 0 ⁇ . It is the time required to decrease to / 2.
• Residual rate (%) [(A 96 ) / (A 0 ) ⁇ 100]: A xenon weather meter X25 manufactured by Suga Test Instruments Co., Ltd. was used to accelerate and deteriorate the photochromic cured product for 96 hours. The evaluation of the color development density was performed before and after the accelerated deterioration test, and the ratio (A 96 / A 0 ) of the color development density of the photochromic cured product before the test (A 0 ) and the color development density of the photochromic cured product after the test (A 96) remained. The rate was used as an index of the durability of color development. The higher the residual rate, the higher the durability of color development.
• Example 18 As shown in Table 1, a photochromic curable composition in which each component was mixed was prepared. The prepared photochromic curable composition was sufficiently defoamed and then poured into a glass mold provided with a gap of 2 mm, and the photochromic curable composition was polymerized by casting polymerization. The polymerization was carried out using an air furnace over 18 hours while gradually raising the temperature from 27 ° C to 120 ° C. After the polymerization, the cured product was removed from the glass mold to obtain a photochromic cured product (photochromic optical article) having a thickness of 2 mm. The evaluation results of the photochromic cured product are shown in Tables 1 to 4.
• Example 19 to 48 Comparative Example 1
• a photochromic cured product was prepared and evaluated by the same method as in Example 18 except that the formulations were changed to those shown in Tables 1 to 4. The evaluation results are shown in Tables 1 to 4 as in Example 18.
• Example 49 As shown in Table 4, a photochromic curable composition in which each component was mixed was prepared. Next, the prepared photochromic curable composition was sufficiently defoamed, and then injected into a mold consisting of a glass plate having a gap of 1 mm and a thiourethane plastic lens having a refractive index of 1.60, and subjected to casting polymerization. The photochromic composition was polymerized. The polymerization was carried out using an air furnace and cured over 18 hours while gradually raising the temperature from 27 ° C to 120 ° C.
• the glass plate was removed to obtain a bonded photochromic optical article in which a 1 mm thick photochromic cured product was laminated on the surface of a thiourethane plastic lens having a refractive index of 1.60.
• the obtained photochromic optical articles were evaluated for photochromic properties and durability in the same manner as in Example 18, and the evaluation results are shown in Table 4.
• Example 50 As shown in Table 4, a photochromic curable composition in which each component was mixed was prepared. Next, the prepared photochromic curable composition was used as an adhesive, and a pair of glass plates for optical articles were joined to produce a photochromic optical article. First, the photochromic curable composition is applied on one glass plate for an optical article on which a spacer having a thickness of 0.1 mm is arranged, and then the glass plate for the other optical article is arranged on the photochromic curable composition, and then the photochromic curable composition is applied. Polymerized. Polymerization is carried out using an air furnace, and is cured over 18 hours while gradually raising the temperature from 27 ° C to 120 ° C.
• the shaft molecule is formed of polyethylene glycol having a molecular weight of 11,000, the bulky groups at both ends are adamantyl groups, the cyclic molecule is ⁇ cyclodextrin, and ⁇ caprolactone is polymerized by an average of 3.5 molecules via an oxypropylene group. It was done.
• pr2 has a structure in which an acrylic group is introduced as a polymerizable group in 50% of the side chain and 50% of the side chain has an OH group at the end. Further, from the measurement of 1 H-NMR, a chain having an average of about 140 polymerizable groups (acrylic groups) per molecule was introduced.
• Stabilizer HP Ethylene bis (oxyethylene) bis [3- (5-tert-butyl-4-hydroxy-m-tolyl) propionate]
• Examples 51 to 52 Comparative Example 2
• a photochromic curable composition in which each component was mixed was prepared according to the formulation shown in Table 5.
• a thiourethane-based plastic lens having a center thickness of 2 mm and a refractive index of 1.60 was prepared as an optical substrate.
• This thiourethane-based plastic lens was previously subjected to alkaline etching at 50 ° C. for 5 minutes using a 10% aqueous sodium hydroxide solution, and then sufficiently washed with distilled water.
• a moisture-curable primer (product name; TR-SC-P, manufactured by Tokuyama Co., Ltd.) was applied to the surface of the above plastic lens using a spin coater (1H-DX2, manufactured by MIKASA) at a rotation speed of 70 rpm for 15 seconds. And coated at 1000 rpm for 10 seconds. Then, about 2 g of the photochromic composition obtained above was spin coated at a rotation speed of 60 rpm for 40 seconds and then at 600 rpm for 10 to 20 seconds so that the film thickness of the photochromic coating layer became 40 ⁇ m.
• the lens coated with the coating agent on the surface was irradiated with light for 90 seconds using a metal halide lamp having an output of 200 mW / cm 2 in a nitrogen gas atmosphere to cure the coating film. Then, by further heating at 110 ° C. for 1 hour, a photochromic optical article in which a photochromic cured product was coated on the surface of the plastic lens was obtained.
• the obtained photochromic optical article was evaluated for photochromic property and durability by the same method as in Example 18, and the evaluation results are shown in Table 5.
• Example 53 Synthesis of compound (24a)
• the compound (14a) (6.5 g, 1.0 mmol) synthesized in Example 8 and the toluenesulfonic acid monohydrate (0.076 g, 0.4 mmol) were added to the compound (14a) (6.5 g, 1.0 mmol).
• 3-mercaptopropionic acid (0.47 g, 4.4 mmol) was added, and the mixture was heated under reflux at 130 ° C. for 10 hours to carry out dehydration condensation.
• the solvent was distilled off under reduced pressure, the residue was dissolved in dichloromethane, and the organic layer was washed with 1% aqueous ammonia.
• Example 54 Synthesis of compound (25a) After dissolving compound (14a) (6.5 g, 1.0 mmol) synthesized in Example 8 in 50 mL of dry tetrahydrofuran, 60% sodium hydride (0) is dissolved in this solution. .24 g, 6.0 mmol) was added, and the mixture was stirred at room temperature for 1 hour. Epichlorohydrin (0.56 g, 6.0 mmol) was added to the stirred solution, and the mixture was stirred at room temperature for 15 hours. After the reaction, the solvent was distilled off under reduced pressure, dissolved in dichloromethane, and the organic layer was washed with ion-exchanged water three times. The organic layer was dried over magnesium sulfate, and the solvent was distilled off under reduced pressure to obtain compound (25a). As a result of proton nuclear magnetic resonance spectrum analysis, the introduction rate of the glycidyl group was 70%.
• Example 55 Each component was mixed according to the formulation shown in Table 6 to prepare a photochromic curable composition. Then, after the prepared photochromic curable composition was sufficiently defoamed, this composition was used as an adhesive to produce a photochromic optical article by a glass bonding method provided with a polarizing film layer and a photochromic layer. Specifically, first, a pair of glass plates for optical articles were prepared. An acrylic adhesive was applied to one side of a glass plate for an optical article by spin coating to form a coating film. A polarizing film (thickness 27 ⁇ m, visual transmittance 42.5%, degree of polarization 99.2%, gray color, polyvinyl alcohol base) was laminated on this coating film. Next, the coating film was cured by irradiating the coating film with UV through a glass plate. As a result, a first laminated body was obtained in which one of the glass plates and the polarizing film were bonded via an acrylic adhesive layer.
• the photochromic curable composition was applied on the other glass plate for an optical article having a 0.1 mm thick spacer at the end to form a coating film.
• the first laminate obtained by the above method was laminated on this coating film so that the polarizing film was in contact with the coating film.
• the coating film was cured to obtain a photochromic optical article in which the other glass plate and the polarizing film were bonded via a photochromic resin layer.
• the polymerization of the photochromic curable composition was carried out by gradually raising the temperature from 27 ° C. to 120 ° C. over 18 hours using an air furnace.
• the film thickness of the photochromic resin layer was 0.1 mm.
• the obtained photochromic optical articles were evaluated for photochromic properties and durability in the same manner as in Example 18, and the evaluation results are shown in Table 6.
• Example 56 A photochromic cured product was prepared and evaluated in the same manner as in Example 18 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 57 A photochromic cured product was prepared and evaluated in the same manner as in Example 49 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 58 A photochromic cured product was prepared and evaluated in the same manner as in Example 50 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 59 A photochromic cured product was prepared and evaluated in the same manner as in Example 55 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 62 to 63 A photochromic cured product was prepared and evaluated in the same manner as in Example 18 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 64 A photochromic cured product was prepared and evaluated in the same manner as in Example 49 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 65 A photochromic cured product was prepared and evaluated in the same manner as in Example 50 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Example 66 A photochromic cured product was prepared and evaluated in the same manner as in Example 55 except that the formulation was changed to that shown in Table 6. The evaluation results are shown in Table 6.
• Comparative Example 3 As shown in Table 6, a photochromic cured product was prepared and evaluated by the same method as in Comparative Example 1 except that the amount of TDMP was increased and the amounts of H6XDI and TMMP were decreased. The evaluation results are shown in Table 6.
• the compound for optical materials, the curable composition, and the cured product of the present invention can be used for optical articles having photochromic properties such as plastic lenses.

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