WO2008035643A1 - Composition de résine pour matériau optique et matériau optique l'utilisant - Google Patents
Composition de résine pour matériau optique et matériau optique l'utilisant Download PDFInfo
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- WO2008035643A1 WO2008035643A1 PCT/JP2007/068016 JP2007068016W WO2008035643A1 WO 2008035643 A1 WO2008035643 A1 WO 2008035643A1 JP 2007068016 W JP2007068016 W JP 2007068016W WO 2008035643 A1 WO2008035643 A1 WO 2008035643A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
- C08G18/3876—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur containing mercapto groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/52—Polythioethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7628—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
- C08G18/7635—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 one isocyanate or isothiocyanate group linked to the aromatic ring by means of an aliphatic group and at least one isocyanate or isothiocyanate group directly linked to the aromatic ring, e.g. isocyanatobenzylisocyanate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7628—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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7628—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
- C08G18/765—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 alpha, alpha, alpha', alpha', -tetraalkylxylylene diisocyanate or homologues substituted on the aromatic ring
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
Definitions
- the present invention relates to a resin composition for an optical material, and further relates to an optical material such as a plastic lens, a prism, an optical fiber, an information recording substrate, and a filter using the resin composition.
- an optical material such as a plastic lens, a prism, an optical fiber, an information recording substrate, and a filter using the resin composition.
- the present invention is suitably used as a plastic lens. Background art
- plastic materials have been widely used in various optical materials, particularly spectacle lenses, because they are light and tough and easy to dye.
- the performance required particularly for optical materials, especially eyeglass lenses is low specific gravity, high transparency and low yellowness, high heat resistance, high strength, etc. as physical properties, and high refractive index and high optical performance.
- Abbe number A high refractive index makes it possible to reduce the thickness of the lens, and a high Abbe number reduces the color difference of the lens, but the higher the refractive index, the lower the Abbé number. ing.
- the most typical method is a method using an episulfide compound disclosed in Japanese Patent No. 3 4 9 1 6 60.
- the first is falling ball strength. It must be strong enough not to break when it hits the lens or drops it.
- Second is the drilling resistance. When drilling a lens with a drill, no chipping or cracking occurs, that is, drilling workability is good. It is necessary to make a hole when installing a so-called “two-boyt” frame, but it must be strong enough to prevent chipping or cracking.
- Third is the tensile strength. In order to withstand the use of a two-point frame, the lens must be strong enough not to be damaged even if the frame is bent.
- heat resistance is necessary. It is standard to attach a hard coat to protect the surface of plastic lenses, but heat resistance is required because heat is applied when applying a hard coat.
- the problem to be solved by the present invention is to provide a resin composition for an optical material that has excellent optical properties and can provide an optical material having excellent strength and heat resistance.
- the present inventors solved the present problem as a result of intensive studies and reached the present invention.
- one embodiment of the present invention is a resin for optical materials containing (a) an epoxy compound represented by the following general formula (1), (b) a xylylene dithiol compound, and (c) a xylylene diisocyanate compound. It is a composition.
- n represents an integer of 0 to 2.
- a preferred embodiment of the present invention is the resin composition for an optical material, wherein the (a) episulfide compound is bis ( ⁇ -epithiopropyl) sulfide or bis (/ 3-epitipropyl) disulfide.
- Another preferred embodiment of the present invention is the resin composition for an optical material, wherein the (b) xylylene dithiol compound is m-xylylene dithiol or p-xylylene dithiol.
- Another preferred embodiment of the present invention is a resin composition for an optical material, wherein the (c) xylylene diisocyanate compound is m-xylylene diisocyanate.
- the (c) xylylene diisocyanate compound is 1, 3-bis (1-isocyanato-1-methylethyl)
- a resin composition for optical materials which is benzene.
- Another preferred embodiment of the present invention is a resin composition for an optical material further comprising (d) a compound having both an ester group and a mercapto group.
- the compound (d) having both an ester group and a mercapto group is a trimethylolpropane tristiglycolate, a pentaerythritol tetrakistidedalycolate, a trimethylolpropane tristiol.
- Another preferred embodiment of the present invention is a resin composition for optical materials further comprising (e) an inorganic compound having a sulfur atom.
- the number of SH groups (SH group number, NCO group number) contained in the resin composition for optical materials is 1 with respect to the number of NCO groups contained in the resin composition for optical materials. It is the resin composition for optical materials which is -2.
- Another preferred embodiment of the present invention is a resin composition for an optical material, wherein the (a) episulfide compound is contained in an amount of 40% by weight to 90% by weight with respect to the optical material resin composition.
- the optical composition further comprises (f) 0.01% by weight to 5% by weight of an onium salt and / or a phosphine as a polymerization catalyst with respect to the resin composition for an optical material. It is a resin composition for materials.
- Another embodiment of the present invention is an optical material obtained by curing the resin composition for optical materials.
- the present invention is a resin composition for an optical material containing (a) an ed compound represented by the following general formula (1), (b) a xylylene dithiol compound, and (c) a xylisocyanate compound.
- n represents an integer of 0 to 2.
- an episulfide compound represented by the above general formula (1) is used.
- episulfide compound represented by the general formula (1) of (a) include bis (epeptiopropyl) sulfide, bis (-epeptiopropyl) disulfide, bis (; 3—epeptiopropyl) trisulfide, bis (] 3-Epithiopropylthio) Methane, 1,2-bis (; 3-Epithiopropylthio) ethane, 1,3-bis (/ 3-Epithiopropylthio) propane, 1,4_bis
- Preferable examples include (13-epithiopropylthio) butane, bis (j3-epiopropylthioethyl) sulfide, and the like.
- the episulfide compound represented by the general formula (1) may be used alone or in combination of two or more.
- preferred episulfide compounds are bis (epepithiopropyl) sulfide and bis (] 3-epiopropyl) disulfide represented by the following structural formula, and the most preferred episulfide compound is bis (3-epiopropyl) sulfide. It is.
- xylylenedithiol compound (b) preferably include o_, m-, and p-xylylenedithiol.
- preferred xylylene dithiol compounds are m-xylylene dithiol and p-xylylene dithiol represented by the following structural formula, and particularly preferred xylylene dithiol compound is m_xylylene dithiol.
- the xylylene diisocyanate compound (c) include o-, m- and p-xylylene diisocyanate, 1, 2—, 1, 3—, and 1,4-bis (1-isocyanate).
- One-to 1-methylethyl) benzene is preferred. These may be used alone or in combination of two or more.
- a preferred xylylene diisocyanate compound is m-xylylene diisocyanate represented by the following structural formula, 1,3-bis (1_isocyanate-1-1-methylethyl) benzene, and particularly preferred xylylene diisocyanate.
- the nate compound is m_xylylene sulfonate.
- Xylylene diisocyanate is preferably used alone, but xylylene diisocyanate and 1,3-bis (1-isocyanato 1-methylethyl) ) You may mix benzene in arbitrary ratios. When mixed and used, the preferable mixing ratio is expressed as follows in terms of the ratio of the number of moles of NCO groups. Z / u force SO when the number of moles of NCO groups in xylylene diisocyanate is z, 1, 3-bis (1-isocyanato 1-methylethyl) The number of moles of NCO groups in benzene is u It is preferably from 01 to 10.
- the mixing ratio of the xylylene dithiol compound and the compound having both the ester group and the mercapto group is arbitrary (however, the xylylene dithiol compound is always used), but in order to develop better physical properties It is preferable to use a compound having a xylylene diol compound as a main component and having both an ester group and a mercapto group as subcomponents.
- a preferable mixing ratio is expressed as follows by the ratio of the number of moles of SH groups.
- X Z y is not less than 0.01 and not more than 2 when x is the number of moles of SH in a compound having both an ester group and a mercapto group, and y is the number of moles of SH in a xylylenedithiol compound It is preferable that More preferably, they are 0.1 or more and 1.2 or less, More preferably, they are 0.2 or more and 1.0 or less, Most preferably, they are 0.3 or more and 0.8 or less.
- the compound (d) having both an ester group and a mercapto group include: ethylene glycol / lebisthioglycolate, butanediolobisbioglycolate, hexanediol bisthioglycolate, tri Such as methylolpropane tristhioglycolate, pentaerythritol tetrakisthioglycolate, ethylene glycol bisthiopropionate, butanediol bisthiopropionate, trimethylolpropane tristhiopropionate, pentaerythritol tetrakisthiopropionate Preferably mentioned.
- the most preferred compounds are trimethylolpropane tristodaricolate, pentaerythritol tetrakisthioglycolate, trimethylolpropane tristhiopropionate, and pentaerythritol tetrakisthiopropionate represented by the following structural formula. Is pentaerythritol tetrakisthiopropionate. These can be used alone or in combination of two or more.
- the inorganic compound having a sulfur atom of (e) include sulfur, hydrogen sulfide, carbon disulfide, selenium sulfide, carbon selenosulfide, ammonium sulfide, sulfur dioxide, sulfur trioxide and other sulfur oxides, and thiocarbonate.
- the addition amount of the inorganic compound is 0.01 to 30% by weight, preferably 0.1 to 20% by weight, more preferably 1 to 10% by weight, based on the total resin amount.
- the number of SH groups contained in the resin composition for optical materials is compared with the number of NCO groups contained in the resin composition for optical materials. It is desirable that the number (31 ⁇ base ⁇ 0base) is 1 or more. More preferably, it is 1.1 or more, more preferably 1.2 or more. On the other hand, in order to maintain high heat resistance, the number of SH groups contained in the resin composition for optical materials (31 ⁇ number of radicals 1 ⁇ 1) relative to the number of NCO groups contained in the resin composition for optical materials It is desirable that the number of 0) is 2 or less. More preferably, it is 1.9 or less, more preferably 1.8 or less.
- the proportion of the episulfide compound has a high refractive index and a good Abbe number balance in the resin composition for optical materials. It should be 40% by weight or more. More preferably, it is 50 weight% or more, More preferably, it is 60 weight% or more.
- the ratio of episulfide compound is optical The amount is desirably 90% by weight or less, more preferably 85% by weight or less, and still more preferably 80% by weight or less based on the resin composition for materials.
- the proportion of the xylylene dithiol compound is preferably 1% by weight or more and 50% by weight or less, more preferably 3% by weight or more and 30% by weight or less, based on the resin composition for optical materials. Preferably they are 5 weight% or more and 20 weight% or less.
- the proportion of the xylylene diisocyanate compound is preferably 1% by weight or more and 50% by weight or less, more preferably 2% by weight or more and 30% by weight or less, based on the resin composition for optical materials. More preferably, it is 3% by weight or more and 20% by weight or less.
- an onium salt phosphine compound is preferably used as the polymerization catalyst.
- Specific examples include quaternary ammonium salts, quaternary phosphonium salts, tertiary sulfonium salts, secondary odonium salts, and phosphine compounds. Of these, quaternary ammonium salts, quaternary phosphonium salts, and phosphine compounds having good compatibility with the resin composition for optical materials are more preferable, and quaternary phosphonium salts are more preferable.
- more preferable compounds include tetra-n-methylammonium chloride, tetra-n-ethylammonium chloride, tetra-n-butylammonium chloride, tetraoctylammonium chloride, tetraphenyl.
- Ruammonium chloride tetra_n-methylammonium bromide, tetra-n-ethylammonium bromide, tetra-n-butylammonium bromide, tetraoctylammonum bromide, tetraphenylammonide Umuburomaido, Application Benefits ethylbenzyl ammonium Niu skeleton line de, cetyl dimethyl benzyl en Moni Umukuroraido, 1 one n - quaternary ammonium Niumu salts and dodecyl pyridinylbenzoyloxy ⁇ skeleton line, tetra one n- methyl phosphonyl ⁇ skeleton ride, Tetra n-etil ho Homonium chloride, tetra-n-butylphosphonium chloride, tetraoctylphosphonium chloride, tetraphenylphosphonium chloride,
- more preferred compounds are triethylbenzyl ammonium chloride, tetra-n-butinorephosphonium bromide, triphenyl ⁇ phosphine, and the most preferred compound is tetra-n- Butylphosphonium bromide.
- the amount of the polymerization catalyst added varies depending on the components of the resin composition for optical materials, the mixing ratio, and the polymerization curing method. 0.001 to 5% by weight is preferable with respect to the resin composition, more preferably 0.0 to 1% by weight, and most preferably 0.0 to 1% by weight or more. Less than 5% by weight.
- Polymerization modifiers can include Group 13-16 halides in the Long Periodic Table. Of these, preferable compounds are halides of silicon, germanium, tin, and antimony, and more preferable compounds are germanium, tin, and antimony chloride having an alkyl group.
- More preferred compounds are specifically dibutyl tin dichloride, butyl tin trichloride, dioctyl tin dichloride, octyl tin trichloride, dibutyl dichlorogenoremanium, butinoretrichlorogenoremanium, diphenylenole Dichlorogenoremanium, phenolinotrichlorogenoremanium, triphenylenoantimony dichloride, and a specific example of the most preferred compound is dibutyltin dichloride.
- the polymerization regulator may be used alone or in combination of two or more.
- phosphatylphenyl boric acid can be mentioned.
- preferred compounds are dimethyl phosphate, jetyl phosphate, dibutyl phosphate, dibutoxetyl phosphate, di (2-ethyl hexyl) phosphate, diisodecyl phosphate, dilaurino phosphate, distearyl phosphate, di-n-hexadecyl Phosphate, di-ray lysole phosphate, ditetracosinorephosphate, diphenylenophosphate, diethylene glycol phosphate, phenylboric acid, and more preferred compounds are diphenylphosphate, phenylboric acid, most preferred A preferred compound is diphenyl phosphate. These may be used alone or in combination of two or more.
- the addition amount of the polymerization adjusting agent is usually respect to the resin compound for optical material, 0. 0 0 0 1-5. 0 weight 0/0, preferably 0. 0 0 0 5 to 3.0 weight %, More preferably 0.001 to 2.0% by weight.
- an episulfide compound other than the compound (b) a thiol compound other than the compound, (c) a compound, in order to adjust various physical properties such as the refractive index of the cured product
- a compound in order to adjust various physical properties such as the refractive index of the cured product
- isocyanate compounds, epoxy compounds, and alcohols having unsaturated groups can be used in combination.
- the optical material resin composition of the present invention is polymerized and cured to obtain an optical material, it is obtained by adding additives such as known antioxidants, ultraviolet absorbers, and bluing agents. Of course, it is possible to further improve the practicality of the material.
- antioxidants include phenol derivatives.
- preferred compounds are polyvalent phenols and halogen-substituted phenols, more preferred compounds are catechol, pyrogallol, and alkyl-substituted catechols, and most preferred compounds are catechol and pyrogallol.
- Preferred examples of the ultraviolet absorber include benzotriazole compounds and benzophenone compounds.
- preferred compounds are benzotriazole compounds, and specific examples of particularly preferred compounds are 2— (2-hydroxy-5 — methylphenyl) — 2 H —benzotriazole, 5 — black mouth 2 — (3,5-Di-tert-Butyl 2-Hydroxyphenyl) 1 2 H-Benzotriazole, 2-— (3-tert —Butanole 2-Hydroxy 5-methylphenyl 2-one) 1 5—Black 1 2 H— Benzotriazole, 2-(3,5-di-tert-pentynole 2-hydroxylphenyl) 1 2 H-benzotriazole, 2- (3,5-di-tert-butynole 2--2-hydroxyphenyl) 1 2 H-benzotriazole, 2- (2-hydroxy-4-octyloxyphenyl) 1 2 H-benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) 1 2 H-benzo In Triazole That.
- a known external and Z or internal adhesion improver is used or added to improve the adhesion between the cured product obtained and the mold. It is also possible to improve.
- the adhesion improving agent include well-known silane force pulling agents and titanate compounds, and these may be used alone or in combination of two or more. The added amount is usually from 0.001 to 5% by weight based on the resin composition for optical materials.
- Release agents include fluorine-based nonionic surfactants, silicon-based nonionic surfactants, phosphoric acid esters, acidic phosphoric acid esters, oxyalkylene-type acidic phosphoric acid esters, alkali metal salts of acidic phosphoric acid esters, and oxyalkylene-type acidic phosphoric acid.
- Examples include alkali metal salts of esters, metal salts of higher fatty acids, higher fatty acid esters, paraffins, waxes, higher aliphatic amides, higher aliphatic alcohols, polysiloxanes, and aliphatic amine amine oxide adducts. These may be used alone or in combination of two or more.
- the addition amount is usually from 0.001 to 5% by weight based on the resin composition for optical materials.
- the method for producing an optical material by polymerizing and curing the resin composition for an optical material of the present invention is as follows in more detail. Even if the above-mentioned components, antioxidants, ultraviolet absorbers, polymerization catalysts, radical polymerization initiators, adhesion improvers, release agents, etc. are all mixed together in the same container with stirring, Each raw material can be added and mixed in stages, or several components can be mixed separately and then mixed again in the same container. Each raw material and auxiliary raw material may be mixed in any order. When mixing, the set temperature, the time required for this, etc. may basically be any conditions that allow the components to be sufficiently mixed.
- the resin composition for optical materials is preferably subjected to a degassing treatment in advance, and thereby high transparency of the optical material may be achieved.
- the deaeration treatment is preferably performed under reduced pressure before, during or after mixing the compound capable of reacting with some or all of the composition components, the polymerization catalyst, and the additive. Preferably, it is performed under reduced pressure during or after mixing.
- the treatment conditions are from 0 ° C. to 100 ° C. under reduced pressure of 0.0 1 to 50 torr for 1 minute to 24 hours.
- the degree of decompression is preferably 0.05 to 25 torr, more preferably 0.01 to 10 torr, and the degree of decompression may be varied within these ranges.
- the deaeration time is preferably 5 minutes to 18 hours, more preferably 10 minutes to 12 hours.
- the temperature at the time of deaeration is preferably 5 ° C. to 80 ° C., more preferably 10 ° C. to 60 ° C. The temperature may be varied within these ranges.
- renewing the interface of the resin composition by stirring, blowing of gas, vibration by ultrasonic waves or the like is a preferable operation for enhancing the deaeration effect.
- the components removed by the degassing treatment are mainly dissolved gases such as hydrogen sulfide and low boiling point substances such as low molecular weight thiols.
- the resin composition for optical material thus obtained is poured into a glass or metal mold, subjected to a polymerization and curing reaction by heating or irradiation with active energy rays such as ultraviolet rays, and then removed from the mold.
- The Preferably, it is polymerized and cured by heating.
- the curing time is 0.1 to 200 hours, usually 1 to 100 hours, and the curing temperature is -10 to 160 degrees Celsius, usually 10 to 140 degrees Celsius. .
- the polymerization is held for a predetermined time at a predetermined polymerization temperature, and the temperature is raised from 0.1 ° C to 100 ° CZ time, the temperature is lowered from 0.1 ° C to 100 ° CZ time, and a combination thereof. Do.
- annealing the cured product at a temperature of 50 to 1550 ° C. for about 10 minutes to 5 hours is a preferable treatment for removing the distortion of the optical material of the present invention.
- surface treatment such as dyeing, hard coating, impact-resistant coating, antireflection and antifogging can be performed as necessary.
- the polymer thus obtained is a resinous material that is insoluble and infusible due to three-dimensional crosslinking.
- Falling ball strength Drop a 10 g iron ball from a height of 1 27 cm onto a 2.5 mm thick flat plate, and gradually increase the weight of the iron ball by 10 g until the flat plate breaks. Yuki, we measured the impact energy (J) given by the iron ball when it broke down.
- Drill strength Drill speed 25 00 rpm, approach speed 600 mm, min
- Tensile strength A 2 mm diameter hole was drilled 4 mm from both ends of a planar lens with a diameter of 5 Omm and a thickness of 2 mm. Pins were inserted into the two holes and both ends were fixed, pulled at a speed of 1 OmmZ, and the strength at break (kgf) was measured.
- Heat resistance Apply a load of 10 g by placing a lmm diameter pin on a 3 mm thick sample
- the temperature was increased from 30 ° C to 10 ° CZ, TMA measurement was performed, and the peak value at which thermal expansion changed was measured. 80 ° C or higher was marked as ⁇ , and less than 80 ° C was marked as X
- Refractive index, Abbe number Measured at 25 ° C using an Abbe refractometer (Abbago's Abbe refractometer NAR-4T).
- the refractive index at the d-line (587.6nra, yellow) was measured. This is generally written as n d .
- the refractive index was first measured for d-line (587.6 nm, yellow), F-line (486. lnm, blue), and C-line (656.3 nm, red).
- the numerical values are n d , n F , and n c , the Abbe number V d can be calculated by the following formula.
- Example 1 The operation shown in Example 1 was carried out with the composition shown in Table 1. The obtained lenses were all transparent and had a good appearance. Optical properties, strength, and heat resistance were measured and the results are shown in Table 1. Examples 7 to: 1 4
- Example 1 The operation shown in Example 1 was carried out with the composition shown in Table 2. Since (b) the xylylene diol compound or (c) the xylylene diisocyanate compound was used for polymerization and curing with a composition using other compounds, the strength was not sufficiently obtained. In addition, there were cases where heat resistance was insufficient. table 1
- a _ 1 Bis (j3-epithiopropyl) sulfide a-2: Bis (—epiopropyl) disulfide (b) Xylylene dithiol compound
- DMDS Bis (2-mercaptoethyl) snorefide.
- DIMB Di (isocyanate methyl) heptane
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KR1020157022595A KR101821467B1 (ko) | 2006-09-19 | 2007-09-11 | 광학재료용 수지 조성물 및 그것을 사용한 광학재료 |
EP07807420A EP2058346B1 (en) | 2006-09-19 | 2007-09-11 | Resin composition for optical material and optical material using the same |
CN2007800277991A CN101495531B (zh) | 2006-09-19 | 2007-09-11 | 光学材料用树脂组合物及使用该树脂组合物的光学材料 |
KR1020147029553A KR20140141669A (ko) | 2006-09-19 | 2007-09-11 | 광학재료용 수지 조성물 및 그것을 사용한 광학재료 |
US12/310,474 US8575293B2 (en) | 2006-09-19 | 2007-09-11 | Resin composition for optical material and optical material using the same |
AU2007298219A AU2007298219B2 (en) | 2006-09-19 | 2007-09-11 | Resin composition for optical material and optical material using the same |
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US20100004421A1 (en) | 2010-01-07 |
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US8575293B2 (en) | 2013-11-05 |
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TW200821348A (en) | 2008-05-16 |
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