Classifications

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  • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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  • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
  • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
  • C08G65/32—Polymers modified by chemical after-treatment
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  • C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
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  • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
  • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
  • C08G65/32—Polymers modified by chemical after-treatment
  • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
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  • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
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  • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
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Definitions

• the present inventors have investigated the compatibility between the polymer photochromic compound and the solid matrix while securing the free space.
• the solid matrix can be secured by the following. I thought that it would be possible to improve the compatibility with.
• X3 is an alkylene group, a polyoxypropylene group, a polyoxyethylene group, a polyoxytetramethylene group, or a polysiloxane group.
• X1 and X2 are different groups from each other.
• X2 and X3 are different groups from each other.
• X1 and X3 may be the same group or different groups.
• Z is a hydrogen atom, a methyl group, or an alkyloxy group having 1 to 10 carbon atoms when X3 is an alkylene group.
• X1 and X2 bound via the binding hand L2 which will be described later, and / or X2 and X3 bound via the binding hand L3 are selected from different groups.
• X1 and X3 may be the same group or different groups. As described above, it is considered that the effect of the invention can be obtained by using X1 and X2 and X2 and X3 as different groups to form a block polymer-like group.
• the number of carbon atoms is preferably 12, the alkylthio group is preferably 1 to 10 carbon atoms, the cycloalkylthio group is preferably 3 to 8 carbon atoms, and the arylthio group is preferably 6 to 12 carbon atoms.
• R 3 and R 4 are preferably aryl groups having 6 to 12 ring member carbon atoms.
• the substituent of the aryl group includes an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a substituted amino group, and a ring-membered nitrogen atom, and the carbon to which it is bonded at the nitrogen atom.
• a heterocyclic group bonded to an atom (provided that it may have a substituent) and an arylthio group that may have a substituent are preferable.
• at least one of the substituents is the bond L1 described in detail below.
• R 5 and R 6 are alkyl groups having 1 to 10 carbon atoms or L1 described in detail below, respectively. Further, R5 and R6 are an aliphatic ring having a ring member carbon number of 3 to 20, an aromatic ring having a ring member carbon number of 3 to 20, an aromatic ring or an aromatic ring, together with a carbon atom at the 13-position to which the two are bonded together.
• a fused polycycle in which an aromatic heterocycle is fused, a heterocycle having 3 to 20 ring member atoms, or a fused polycycle in which an aromatic ring or an aromatic heterocycle is fused to the heterocycle is formed. preferable.
• the group bonded to L1 is a substituent on an aryl group or a heteroaryl group of R1 , R2 , R3 , a substituent on an aryl group or a heteroaryl group of R4 , and a group described in R5 and R6. In, it may have a substituent and may have a substituent. Above all, it is preferable that the group that binds to L1 is replaced with the 3-position, 6-position, 7-position, 11-position, or 13-position of indenonaphthopyran. Among these, the 3-position and 13-position are particularly preferable because the productivity of the photochromic compound itself can be improved.
• Z is a hydrogen atom, a methyl group, or 1 to 10 carbon atoms when X2 in the formula (1) or X3 in the formula (2) is a linear or branched alkylene group having 12 to 30 carbon atoms. Alkyloxy group. Z is preferably a methyl group.
• X2 in the formula (1) or X3 in the formula (2) is a polyoxypropylene group having 3 to 200 repeating units, a polyoxyethylene group having 3 to 200 repeating units, and a polyoxytetramethylene having 3 to 200 repeating units.
• Y1 and Y2 are divalent groups, which are independently and directly linked, or are groups consisting of —O—, —S—, amino group, substituted amino group, carbonyl group, and a combination thereof (combination).
• An example of this is an ester group that is a combination of —O— and a carbonyl group), or a substituted silylene group.
• A1 is a divalent group and has an alkylene group which is directly connected or may have a substituent having 1 to 10 carbon atoms and a substituent having 3 to 12 carbon atoms forming a ring.
• L3> L2 is an m + 1 valent bond that directly connects or binds two different types of oligomer chain groups X1 and X2.
• A2 is directly connected or has a substituent selected from an alkoxyl group, a methyl group, an ethyl group, a propyl group and a hydroxyl group as a substituent, a methylene group, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group and a heptylene.
• a substituent selected from an alkoxyl group, a methyl group, an ethyl group, a propyl group and a hydroxyl group as a substituent, a methylene group, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group and a heptylene.
• Y3 and Y4 are directly linked, and are preferably groups consisting of —O—, —S—, a carbonyl group, an ester group, a thioester group, an amide group, a urethane group, a thiourethane group, a dimethylsilylene group, and an amino group, respectively.
• L3 is a directly linked or l + 1 valent bond that binds two different types of oligomer chain groups X2 and X3.
• Y5 and Y6 are divalent groups, which are independently directly linked or consist of —O—, —S—, amino groups, substituted amino groups, carbonyl groups, and combinations thereof. Or, it is a substituted silylene group
• s is an integer of 1 to 3
• t is an integer of 1 to 5, and so on.
• the groups of a plurality of s may be the same or different from each other.
• t 2 or more, the multiple groups of t may be the same or different from each other.
• the group indicated by is preferred.
• A3 is directly connected or has a substituent selected from an alkoxyl group, a methyl group, an ethyl group, a propyl group and a hydroxyl group as a substituent, a methylene group, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group and a heptylene.
• a substituent selected from an alkoxyl group, a methyl group, an ethyl group, a propyl group and a hydroxyl group as a substituent, a methylene group, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group and a heptylene.
• L2 and L3 can be divalent bonds represented by the following formula (4'), respectively.
• V5, V6, V7, and V8 independently represent an oxygen atom, a sulfur atom, an amino group, a substituted amino group, a dimethylsilylene group, a dimethylsilyleneoxy group, a carbonyl group, a carbonyloxy group, respectively.
• Aminocarbonyloxy group aminooxycarbonyl group, alkylene group having 1 or more and 10 or less carbon atoms, oxyalkylene group having 1 or more and 10 or less carbon atoms, oxyalkylene group having 1 or more and 10 or less carbon atoms having a hydroxy group as a substituent, carbon Dioxyalkylene group with 1 or more and 10 or less, carbonyl alkylene group with 2 or more and 10 or less carbon atoms, dicarbonylalkylene group with 3 or more and 10 or less carbon atoms, thioalkylene group with 1 or more and 10 or less carbon atoms, 1 or more and 10 carbon atoms.
• aminoalkylene groups oxycarbonylalkylene groups having 2 or more and 10 or less carbon atoms, carbonyloxyalkylene groups having 2 or more and 10 or less carbon atoms, aminocarbonyloxyalkylene groups having 2 or more and 10 or less carbon atoms, 3 or more and 10 or less carbon atoms.
• Cycloalkylene group cycloalkylenecarbonyl group with 4 or more and 10 or less carbon atoms, cycloalkyleneoxycarbonyl group with 4 or more and 10 or less carbon atoms, cycloalkylenecarbonyloxy group with 4 or more and 10 or less carbon atoms, hetero with 1 or more and 10 or less carbon atoms It is a cycloalkylene group or a heterocycloalkylenecarbonyl group having 2 or more and 10 or less carbon atoms.
• ⁇ , ⁇ , ⁇ and ⁇ are 0 or 1, respectively.
• ⁇ + ⁇ + ⁇ + ⁇ is 1 or more and 4 or less.
• L2 and L3 can be trivalent bonds represented by the following formula (5'), respectively.
• W1 is a CH, CW8, or trivalent group that is a nitrogen atom.
• W8 is a linear or branched alkyl group having 1 or more and 10 or less carbon atoms.
• W2, W3, W4, W5, W6, and W7 independently have an oxygen atom, a sulfur atom, an amino group, a substituted amino group, a dimethylsilylene group, a dimethylsilyleneoxy group, a carbonyl group, a carbonyloxy group, and an aminocarbonyloxy.
• 10 or less dioxyalkylene group 2 or more and 10 or less carbonyl alkylene group, 3 or more and 10 or less carbonyl dicarbonyl alkylene group, 1 or more and 10 or less thioalkylene group, 1 or more and 10 or less carbon atoms
• ⁇ , ⁇ , and ⁇ are 0 or 1, respectively. In the case of L2, the broken line bond extending from W3 binds to X1, and the solid line bond extending from W5 and W7 binds to X2.
• L3 In the case of L3, the broken line bond extending from W3 binds to X2, and the solid line bond extending from W5 and W7 binds to X3.
• L2 and L3 can be tetravalent bonds represented by the following formula (6'), respectively.
• U1, U2, U3, U4, U5, U6, U7, U8, and U9 are independently oxygen atoms, sulfur atoms, amino groups, substituted amino groups, dimethylsilylene groups, and dimethylsilylenes, respectively.
• 1 or more and 10 or less oxyalkylene groups 1 or more and 10 or less dioxyalkylene groups, 2 or more and 10 or less carbonyl carbonyl alkylene groups, 3 or more and 10 or less carbonyl dicarbonyl alkylene groups, 1 or more and 10 or less carbon atoms Thioalkylene group, aminoalkylene group having 1 or more and 10 or less carbon atoms, oxycarbonylalkylene group having 2 or more and 10 or less carbon atoms, carbonyloxyalkylene group having 2 or more and 10 or less carbon atoms, aminocarbonyloxy having 2 or more and 10 or less carbon atoms.
• ⁇ , ⁇ , ⁇ and ⁇ are 0 or 1, respectively.
• the broken line bond extending from U3 binds to X1
• the solid line bond extending from U5, U7 and U9 binds to X2.
• the dashed bond extending from U3 binds to X2
• the solid bond extending from U5, U7 and U9 binds to X3.
• photochromic compound is shown by the following formula and the compounds exemplified by Examples, but is merely an example, and the present invention is not limited thereto.
• x, y, z indicate the number of repeating units, and are selected from 3 to 200. Since the oligomer chain group usually has a plurality of molecular weights, it is represented by a number average molecular weight. Therefore, x, y, and z can take values other than integer values. Further, x, y, and z may have different values or the same value. note that. "Me” in the formula means a methyl group.
• the photochromic compound may be produced by any synthetic method. A typical example of a method for producing a photochromic compound will be described, but the present invention is not limited to this method.
• a compound having a photochromic moiety and having at least a group capable of reacting with the reactive substituent introduced into the photochromic moiety is synthesized.
• this group is a group forming the L1.
• the reactive substituent of the block polymer may be reacted with the group capable of forming L1 to produce a photochromic compound.
• the photochromic site and the reactive substituent may be directly reacted (in this case, L1 is directly connected).
• the reactive substituent of the block polymer compound and the group capable of forming the L1 are not particularly limited. It is also possible to convert the OH group of the block polymer compound into another reactive group by a known method, and then react with the compound having a photochromic moiety into which a group capable of reacting with the reactive group has been introduced.
• the L1 can be formed by performing an esterification reaction with a photochromic compound (site) whose terminal is a carboxylic acid.
• the esterification reaction is carried out by heating in a solvent such as toluene in the presence of a mineral acid such as sulfuric acid or hydrochloric acid, an organic acid such as aromatic sulfonic acid, or a Lewis acid such as boron fluoride ether, if necessary. It can be proceeded by stirring while stirring and removing the generated water by co-boiling.
• a method for removing water a method for removing water with a desiccant such as anhydrous magnesium sulfate or molecular sieves, or water in the presence of a dehydrating agent typified by dicyclohexylcarbodiimide or the like. There is a method of removing.
• the L1 can also be formed by performing an esterification reaction with a compound having a carboxylic acid halide at the terminal. Specifically, a method of removing hydrogen halide generated by stirring in an ether solvent such as tetrahydrofuran in the presence of a base such as pyridine or dimethylaniline while heating as necessary can be adopted. ..
• the L1 can be formed by carrying out a urethanization reaction with a compound having an NCO group at the terminal.
• a method of stirring in the presence of an amine-based catalyst such as triethylenediamine or a tin-based catalyst such as dibutyltin dilaurate in a solvent-free solvent or a solvent such as toluene while heating as necessary can be adopted.
• the L1 can be formed by carrying out a Michael addition reaction with a compound having an SH group or a primary or secondary amino group at the terminal.
• a method of stirring in the presence of a catalyst amount of a tertiary amine such as triethylamine, a base such as a metal alkoxide, or a solid catalyst such as alumina, in a solvent-free or solvent such as toluene, while heating as necessary. can be adopted.
• a polymer having a photochromic moiety in advance and having a reactive substituent such as an OH group at the terminal is synthesized.
• a polymer having a group capable of reacting with the reactive substituent is synthesized.
• this group is a group forming the L2.
• the reactive substituent of the polymer having a photochromic moiety and having a reactive substituent may be reacted with the group capable of forming L2 to form a block polymer to produce a photochromic compound.
• the reactive substituent and the group capable of forming the L2 are not particularly limited.
• an OH group is converted into another reactive group by a known method, and then the reactive group is reacted with a polymer having a reactive group introduced to form a block polymer. You can also do it.
• the photochromic compound represented by the formula (2) can also be produced by using the above-mentioned method.
• the photochromic compound generally exists as a solid or a viscous liquid at normal temperature and pressure, and can be confirmed by the following means. Specifically, it is confirmed by separation operations such as thin layer chromatography, silica gel column chromatography, high performance liquid chromatography, gas chromatography, etc. that there are no by-products such as raw material compounds and colored components other than the photochromic compound. ..
• the obtained photochromic compound was measured by proton nuclear magnetic resonance spectrum ( 1 H-NMR), and the peaks based on the protons of aromatic protons and alkanes were around ⁇ : 5.0 to 9.0 ppm, ⁇ : 1. Proton-based peaks of alkyl and alkylene groups appear near 0.0 to 4.0 ppm. Further, by comparing the spectral intensities of each, the number of protons of each bonding group can be known.
• the photochromic compound is well soluble in general organic solvents such as toluene, chloroform and tetrahydrofuran.
• organic solvents such as toluene, chloroform and tetrahydrofuran.
• the photochromic compound can be widely used as a photochromic material (photochromic optical article), and for example, various storage materials, copying materials, printing photoconductors, cathode ray tube storage materials, laser photosensitive materials, and holography that replace silver salt photosensitive materials. It can be used as various storage materials such as photosensitive materials.
• photochromic materials using photochromic compounds can also be used as photochromic optical articles such as photochromic lens materials, optical filter materials, display materials, photometers, and decorations.
• the photochromic optical article can be produced by curing a photochromic curable composition containing a photochromic compound and a polymerizable compound, as will be described later, and can be produced by curing the surface of a substrate such as a plastic lens. It may be used as an optical article by laminating with a cured body layer in which a photochromic compound is dispersed.
• the photochromic compound exhibits excellent photochromic properties even in a solid matrix, it can be used by being dispersed in a polymer solid matrix, or it can be a polymer molded body in which a photochromic compound is dispersed inside.
• a method known per se can be used. For example, a method in which a photochromic compound and a solid matrix such as a thermoplastic resin are kneaded in a molten state and the photochromic compound is dispersed in the solid matrix, or a polymer photochromic compound is dissolved in a polymerizable compound and then a polymerization catalyst is used. And cure with heat or light to disperse the photochromic compound in the cured product, or a method of dyeing the polymer photochromic compound on the surface of the solid matrix to disperse the photochromic compound in the solid matrix. And so on.
• polyacrylates, polymethacrylates, poly (Cl- Cl2 ) alkyl methacrylates, polyoxy (alkylene methacrylate), poly (alkenylated phenol methacrylate), cellulose acetate are preferably optically preferred.
• a photochromic compound when used in a photochromic lens, there is no particular limitation as long as the method can obtain uniform dimming performance.
• a polymer film in which the photochromic compound is uniformly dispersed is sandwiched in the lens.
• the surface of the lens is impregnated with a curable substance to form a photochromic lens.
• a method of applying the polymer film to the lens surface and coating the surface with a curable substance to form a photochromic lens is also used.
• a coating agent made of a photochromic compound curable composition containing a photochromic compound described later may be applied to the surface of the lens substrate to cure the coating film.
• the lens base material may be subjected to surface treatment such as surface treatment with an alkaline solution or plasma treatment in advance, and further, the base material and the coating film may be subjected to surface treatment in combination with or without these surface treatments.
• a primer can also be applied to improve the adhesion with.
• Photochromic curable composition By blending the photochromic compound with the polymerizable compound, it can be used as a photochromic curable composition.
• the photochromic compound may be used alone, but may also be used in combination with other photochromic compounds depending on the purpose, for example, in order to obtain various color tones required for a photochromic lens.
• a known photochromic compound can be used without any limitation. For example, naphthopyran, spirooxazine, spiropyran, flugide, flugimid and the like can be mentioned.
• naphthopyran is preferable, and indenonaphthopyran is particularly preferable, from the viewpoint of keeping the color tone at the time of color development and fading uniform, suppressing the color shift at the time of color development due to the deterioration of the photochromic compound, and further suppressing the initial coloring.
• other photochromic compounds are also preferably photochromic compounds having an oligomer chain group.
• photochromic compound having an oligomer chain group it is most preferable to use a plurality of types of photochromic compounds to adjust the color tone from the viewpoint of suppressing white turbidity of the cured product.
• the blending amount of the photochromic compound is not particularly limited, and may be appropriately selected in consideration of the color development intensity of the photochromic compound and the thickness of the obtained photochromic cured product.
• the amount of the photochromic compound containing the photochromic compound is preferably 0.0001 to 30 parts by mass, more preferably 0.0003 to 20 parts by mass, and 0. Most preferably, it is 0005 to 10 parts by mass.
• the color development intensity of the photochromic cured product depends on the thickness of the cured product, it is especially important to consider the thickness. For example, when a thin film of 100 ⁇ m or less is formed using a photochromic curable composition, the color tone is adjusted by using 0.001 to 10 parts by mass of a photochromic compound containing a polymer photochromic compound with respect to 100 parts by mass of the polymerizable compound. It is preferable to do so. When producing a photochromic cured product having a thickness of 1 mm or more, it is preferable to adjust the color tone by using 0.0005 to 5 parts by mass of a photochromic compound containing a polymer photochromic compound with respect to 100 parts by mass of the polymerizable compound.
• the photochromic compound can be used as a photochromic curable composition in combination with the polymerizable compound.
• the polymerizable compound include urethane or urea-based polymerizable compounds, radical-polymerizable compounds, and epoxy-based polymerizable compounds that can form urethane bonds, urea bonds, and the like.
• These polymerizable compounds are not particularly limited, but for example, the polymerizable compounds described in International Publication WO2018-235771 can be preferably used.
• urethane-based polymerizable compounds or radically polymerizable compounds shown below are particularly preferably used.
• a composition containing an iso (thio) cyanate compound and a compound having active hydrogen can be preferably used.
• the iso (thio) cyanate compound refers to a compound having an isocyanate group or an isothiocyanate group, and may be a compound having both an isocyanate group and an isothiocyanate group.
• iso (thio) cyanate compound a known compound can be used without particular limitation, but a polyisocyanate group having a polyiso (thio) cyanate group having at least two iso (thio) cyanate groups in one molecule can be used. It is preferably contained, and a polyiso (thio) cyanate compound having an aromatic ring such as m-xylene diisocyanate or 4,4'-diphenylmethane diisocyanate, or an aliphatic polyiso (thio) such as norbornan diisocyanate or dicyclohexylmethane-4,4'-diisocyanate. ) It is particularly preferable to contain a cyanate compound.
• the compound having active hydrogen can be used without particular limitation, but is preferably a compound having an amino group and / or a hydroxyl group and / or a thiol group. In particular, it is preferable to contain a polyfunctional compound having two or more active hydrogens in one molecule.
• Specific examples of the compound having active hydrogen include bifunctional amine compounds such as isophoronediamine, bis- (4-aminocyclohexyl) methane, and norbornandiamine, dipentaerythritolhexakis (3-mercaptopropionate), and the like.
• Trimethylol a polyfunctional thiol compound such as trimethylol propanthris (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropionate) and 4-mercaptomethyl-3,6-dithia-octanedithiol.
• Polyfunctional alcohols such as propane and pentaerythritol can be mentioned, and it is preferable to prepare a composition containing these.
• an active hydride having at least one piperidine structure, hindered phenol structure, triazine structure, or benzotriazole structure in the molecule.
• the radically polymerizable compound can be classified into a polyfunctional radically polymerizable compound and a monofunctional radically polymerizable compound, and each of them can be used alone or in combination of two or more.
• the radically polymerizable substituent include a group having an unsaturated double bond, that is, a vinyl group (including a styryl group, a (meth) acrylic group, an allyl group and the like).
• the multifunctional radically polymerizable compound refers to a compound having two or more radically polymerizable radicals in the molecule.
• This polyfunctional radical-polymerizable compound is divided into a first polyfunctional radical-polymerizable compound having 2 to 10 radical-polymerizable radicals and a second polyfunctional radical-polymerizable compound having more than 10 radical-polymerizable radicals. Can be divided.
• the first polyfunctional radically polymerizable compound is not particularly limited, but it is more preferable that the number of radically polymerizable substituents is 2 to 6.
• examples of the first polyfunctional radically polymerizable compound include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, and ethylene.
• Polyfunctional (meth) acrylic acid ester compounds such as propane; diallyl phthalate, diallyl terephthalate, diallyl isophthalate, diallyl tartrate, dialyl epoxidate, diallyl fumarate, diallyl chlorendate, diallyl hexaphthalate, diallyl Polyfunctional allyl compounds such as carbonates, allyldiglycol carbonates, trimethylolpropanetriallyl carbonates; 1,2-bis (methacryloylthio) ethane, bis (2-acryloylthioethyl) ethers, 1,4-bis (methacryloylthiomethyl). )
• Examples of the second polyfunctional radically polymerizable compound include compounds having a relatively large molecular weight, such as a silsesquioxane compound having a radically polymerizable substituent and a polyrotaxane compound having a radically polymerizable substituent.
• the monofunctional radically polymerizable compound refers to a compound having one or more radically polymerizable substituents in the molecule.
• Examples of the monofunctional radically polymerizable compound include unsaturated carboxylic acids such as acrylic acid, methacrylic acid, and maleic anhydride; methyl (meth) acrylate, benzyl methacrylate, phenyl methacrylate, 2-hydroxyethyl methacrylate, and glycidyl (meth).
• the radically polymerizable compound can be used alone or a mixture of a plurality of types.
• the polyfunctional radical-polymerizable compound is preferably 80 to 100 parts by mass and the monofunctional radical-polymerizable compound is preferably 0 to 20 parts by mass per 100 parts by mass of the total radically polymerizable compound, and the polyfunctional radical polymerizable is preferable. It is more preferable that the compound is 90 to 100 parts by mass and the monofunctional radically polymerizable compound is 0 to 10 parts by mass.
• the first polyfunctional radically polymerizable compound 80 to 100 parts by mass of the first polyfunctional radically polymerizable compound, 0 to 20 parts by mass of the second radically polymerizable compound, and 0 to 0 to 0 to 100 parts by mass of the monofunctional radically polymerizable compound per 100 parts by mass of the radically polymerizable compound. It is preferably 20 parts by mass, the first polyfunctional radically polymerizable compound is 85 to 100 parts by mass, the second polyfunctional radically polymerizable compound is 0 to 10 parts by mass, and the monofunctional radically polymerizable compound is 0 to 10 parts by mass. It is more preferable to use parts by mass.
• the photochromic curable composition includes various additives known per se, such as mold release agents, UV absorbers, UV absorbers, UV stabilizers, antioxidants, anticoloring agents, and antistatic agents, as long as the effects are not impaired.
• Various stabilizers such as agents, fluorescent dyes, dyes, pigments and fragrances, additives, solvents, leveling agents, and thiols such as t-dodecyl mercaptan can be blended as necessary as a polymerization modifier. ..
• an ultraviolet stabilizer because it can improve the durability of the photochromic part.
• an ultraviolet stabilizer a hindered amine light stabilizer, a hindered phenol antioxidant, a sulfur-based antioxidant and the like are known.
• Particularly suitable UV stabilizers are as follows. Bis (1,2,2,6,6-pentamethyl-4-piperidyl) Sevacate, Adecastab LA-52, LA-57, LA-62, LA-63, LA-67, LA-, manufactured by Asahi Denka Kogyo Co., Ltd.
• the amount of such an ultraviolet stabilizer used is not particularly limited as long as the effect is not impaired, but is usually 0.001 to 10 parts by mass, preferably 0, per 100 parts by mass of the photochromic curable composition. It is 0.01 to 5 parts by mass.
• UV absorbers can also be used.
• UV absorbers include benzotriazole-based UV absorbers, triazine-based UV absorbers, benzophenone-based UV absorbers, cyanoacrylate-based UV absorbers, diphenylacrylate-based UV absorbers, phenol-based UV absorbers, and oxanilide-based UV absorbers.
• Malonic acid ester-based UV absorbers, and known UV absorbers such as katsura acid ester-based UV absorbers can be used, and in particular, cyanoacrylate-based UV absorbers, benzophenone-based UV absorbers, and oxanilide-based UV absorbers can be used.
• malonic acid ester-based UV absorbers, and cinnamon acid ester-based UV absorbers are preferred, and oxanilide-based UV absorbers, malonic acid ester-based UV absorbers, and cinnamon acid ester-based UV absorbers are particularly preferred.
• the ultraviolet stabilizer is preferably used in the range of 0.001 to 5 parts by mass with respect to 100 parts by mass of the photochromic curable composition.
• a polymerizable compound other than the above may be blended in the photochromic curable composition as long as the effect is not impaired, and the blending ratio thereof may be appropriately determined according to the intended use.
• the cured product obtained by polymerization can be used as a photochromic optical article.
• the photochromic curable composition can be prepared by mixing a photochromic compound to be used, a polymerizable compound, an additive to be blended if necessary, and the like by a known method.
• Polymerization for producing a cured product is carried out by radical polymerization, ring-opening polymerization, anionic polymerization or demultiplexing polymerization by irradiation with active energy rays such as ultraviolet rays, ⁇ rays, ⁇ rays and ⁇ rays, heat, or a combination of both. By doing, it is done. That is, an appropriate polymerization means may be adopted depending on the type of the polymerizable compound and the polymerization curing accelerator and the form of the cured product to be formed.
• the temperature particularly affects 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 the polymerizable compound, so it cannot be unconditionally limited, but in general, the polymerization is started at a relatively low temperature and the temperature is slowly raised.
• the method is preferred. 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.
• UV intensity particularly affects the properties of the obtained cured product.
• This illuminance condition cannot be unconditionally limited because it is affected by the type and amount of the photopolymerization initiator and the type of the polymerizable monomer, but generally, UV light of 50 to 500 mW / cm 2 is emitted at a wavelength of 365 nm. It is preferable to select the conditions so that the light is irradiated in 5 to 5 minutes.
• the cured product is a photochromic lens
• the known methods described below can be adopted as long as uniform dimming performance can be obtained.
• the above photochromic curable composition is injected between the glass molds held by the estramer gasket or the spacer to obtain a type of polymerizable compound or polymerization curing accelerator. Accordingly, a photochromic optical article formed into a lens or the like can be obtained by casting polymerization by heating in an air furnace or irradiation with active energy rays such as ultraviolet rays.
• a photochromic curable composition is appropriately dissolved in an organic solvent to prepare a coating liquid, and the coating solution is applied to the surface of an optical substrate such as a lens substrate by spin coating or dipping.
• a photochromic layer is formed on the surface of the optical substrate by applying a liquid, drying to remove the organic solvent, and then polymerizing by UV irradiation or heating in an inert gas such as nitrogen. Lenses can be obtained (coating method).
• an optical base material such as a lens base material is arranged so as to form a predetermined gap, a photochromic curable composition is injected into the gap, and in this state, polymerization is performed by UV irradiation, heating, or the like.
• a photochromic lens in which a photochromic layer is formed on the surface of an optical substrate can also be obtained by casting polymerization using the above method (casting polymerization method).
• the surface of the optical substrate is previously chemically treated with an alkaline solution, an acid solution, or the like.
• an alkaline solution such as corona discharge, plasma discharge, and polishing
• the adhesion between the photochromic layer and the optical substrate can be improved.
• a photochromic sheet is produced by sheet molding using a photochromic curable composition, and the photochromic sheet is sandwiched between two transparent sheets (optical sheets) to be described above.
• a photochromic laminate having a photochromic layer as an adhesive layer is obtained.
• a means of coating with a coating liquid in which the photochromic curable composition is dissolved in an organic solvent can also be adopted for producing the photochromic sheet.
• the photochromic laminate thus produced is mounted in a mold, for example, and then a thermoplastic resin for an optical substrate (for example, polycarbonate) such as a lens is injection-molded to form a photochromic laminate.
• a photochromic lens having a predetermined shape is obtained by stacking the lenses.
• this photochromic laminate can also be adhered to the surface of the optical base material with an adhesive or the like, whereby a photochromic lens can be obtained.
• a urethane or urea-based polymerizable compound particularly a urethane-based polymerizable compound, is used as the polymerizable compound because it has high adhesion to the optical substrate.
• the polyurethane is adjusted so as to be formed.
• the cured product obtained by polymerizing the above-mentioned photochromic curable composition can exhibit excellent photochromic properties with a high color development concentration at high temperatures.
• the cured product obtained by polymerizing the photochromic curable composition may be dyed with a dye such as a disperse dye, a silane coupling agent, silicon, zirconium, antimony, aluminum, tin, tungsten or the like, depending on the intended use.
• a dye such as a disperse dye, a silane coupling agent, silicon, zirconium, antimony, aluminum, tin, tungsten or the like, depending on the intended use.
• a hard coat film using a hard coat agent containing sol as the main component thin film formation by vapor deposition of metal oxides such as SiO 2 , TiO 2 , and ZrO 2 , and antireflection by the thin film coated with an organic polymer. It is also possible to perform post-processing such as treatment and antistatic treatment.
• the compound shown by is obtained.
• the number of repeating units such as polyoxyethylene group and polyoxypropylene group varies in the reaction process or the purification process, and in this example as well, the number of repeating units after the reaction or purification in each step. was written.
• WSC water-solve carbodiimide
• DMAP dimethylaminopyridine
• Second step Add 14.1 g (18.7 mmol) of polypropylene glycol monoacrylate with a number average molecular weight of 700, 7.0 mg of dibutylhydroxytoluene (BHT), 2.0 g (20.0 mmol) of succinic anhydride, and 500 mL of dichloromethane, and ice-cool. While stirring underneath, 2.52 g (25 mmol) of triethylamine was slowly added. After stirring for 12 hours, 200 mL of water was added, the liquid was separated, the solvent of the obtained organic layer was concentrated, and the following formula (15) was used. The compound shown by is obtained.
• BHT dibutylhydroxytoluene
• Second step 2- (methoxymethoxy) -1,3-propanediol 5.44 g (40.0 mmol), dityltylformamide (DMF) 100 mL, sodium hydride (40% mineral oil-containing product) 4.0 g (100. While stirring under ice-cooling (0 mmol), 49.87 g (90.0 mol) of the compound of the above formula (19) was slowly added and reacted for 24 hours. After the reaction, 300 mL of water, 500 mL of THF and 500 mL of toluene were added, and the liquid was separated. The obtained organic layer was dried over anhydrous magnesium sulfate, filtered off, the solvent of the obtained organic layer was concentrated, and purified by silica gel column chromatography.
• DMF dityltylformamide
• Example 4 Except for the fact that 17.1 g (50.0 mmol) of icosane diacid and 37.5 g (50.0 mmol) of polyethylene glycol monomethyl ether having a number average molecular weight of 750 were used, the same procedure as in the second step of Example 1 was carried out, and the following formula was used. (27) The compound shown in is synthesized.
• Step 4 In the fourth step of Example 1, the following formula (30) is used instead of the compound of the formula (11). Except for the fact that the compound represented by is used, the same procedure was carried out, and the following formula (31) was used. The chromen compound shown in is obtained.
• the photochromic curable composition was prepared by adding the photochromic compound so that the photochromic moiety was 0.53 ⁇ mol per 100 g of the polymerizable compound in the compounding composition of the polymerizable compound.
• the photochromic curable composition thus obtained was polymerized by a kneading method to obtain a photochromic cured product.
• the polymerization method is as follows. (Polymerization method) After the photochromic curable composition was sufficiently defoamed, it was cast into a mold having a thickness of 2 mm, which was composed of a glass mold and a gasket made of an ethylene-vinyl acetate copolymer.
• the photochromic cured product was removed from the glass of the mold, and then annealed at 100 ° C. for 1 hour.
• the column labeled "maximum absorption wavelength” shows the positions (wavelengths) of the two peaks appearing in the spectral spectrum. Of the two peaks, the peak that appears at the shorter wavelength is the first peak, the wavelength is described in the upper part of the cell, the peak that appears at the longer wavelength is the second peak, and the wavelength is the lower part in the cell. It is described in.
• the column labeled "23 ° C. color development density” the 23 ° C. color development density of the first peak is described in the upper row in the cell, and the 23 ° C. color development density of the second peak is described in the lower row.
• the column described as “23 ° C. fading rate” the 23 ° C. fading rate of the first peak is described in the upper row in the cell, and the 23 ° C. fading rate of the second peak is described in the lower row.
• Example 18 First step In the third step of Example 17, the following formula (50) is used instead of the compound of the formula (45). The reaction was carried out in the same manner except that the compound of (51) was used. The compound shown by is obtained.
• Example 20 First Step In the third step of Example 17, the reaction was carried out in the same manner except that the compound of the formula (7) was used instead of the compound of the formula (45), and the following formula (58) was carried out. The compound shown by is obtained.

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