WO2004108787A1 - 透明成形体 - Google Patents
透明成形体 Download PDFInfo
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- WO2004108787A1 WO2004108787A1 PCT/JP2004/008381 JP2004008381W WO2004108787A1 WO 2004108787 A1 WO2004108787 A1 WO 2004108787A1 JP 2004008381 W JP2004008381 W JP 2004008381W WO 2004108787 A1 WO2004108787 A1 WO 2004108787A1
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- molded article
- transparent molded
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Classifications
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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
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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
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
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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
- C08G18/28—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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/625—Polymers of alpha-beta ethylenically unsaturated carboxylic acids; hydrolyzed polymers of esters of these acids
- C08G18/6254—Polymers of alpha-beta ethylenically unsaturated carboxylic acids and of esters of these acids containing hydroxy 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
- C08G18/83—Chemically modified polymers
- C08G18/87—Chemically modified polymers by sulfur
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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
Definitions
- the present invention has a high refractive index, low dispersion, excellent transparency, and excellent impact resistance and weather resistance.
- the present invention relates to a transparent molded article having a high refractive index, a high Abbe number, excellent optical properties, and excellent impact resistance, including various lenses including an ophthalmic lens, a prism, and an optical element.
- the present invention relates to a transparent molded article which can be suitably used for a fiber, a substrate for a recording medium, a filter and the like.
- plastics are lighter, harder to break, and easier to dye, and are used in recent years for optical applications such as various lenses.
- Polyethylene glycol bisaryl carbonate (CR-39) and polymethyl methacrylate (PMMA) are commonly used as optical plastic materials.
- these plastic materials have a refractive index of 1.5 or less, when used as a lens material, for example, the higher the power, the thicker the lens, and the advantage of plastic, which is lighter, is lost. It was not desirable in terms of power and aesthetics.
- the thickness around the lens becomes large, and birefringence and chromatic aberration tend to occur, which is not preferable.
- a first object of the present invention is to provide a molded article having high impact strength, excellent transparency, and high refractive index, which is suitable for optical use.
- a second object of the present invention is to have a refractive index and transparency equal to or higher than that of a molded article conventionally used for optical materials such as lenses, and to be used for optical materials such as lenses conventionally.
- An object of the present invention is to provide a transparent molded article having a higher impact strength than a molded article and suitable for optical use.
- DISCLOSURE OF THE INVENTION The present inventors have conducted intensive studies to achieve the first object, and as a result, polymerized a polythiol compound having a specific structure and a polyisocyanate compound having a specific structure.
- the present inventors have found that the above object can be achieved by the obtained transparent molded article of polythiourethane, and have completed the present invention. That is, the means for achieving the first object of the present invention are as follows.
- Component (A) One or more polythiol compounds represented by the general formula (I) (wherein m is 1, 2, 3, 4, 5, or 6 in the general formula (I)) I)
- Component (B 1) One or more polyisocyanate compounds represented by the general formula (II).
- n and n 2 and n 3 are each independently 3, 4, 5, 6, 7, or 8 General formula (II)
- Component (B2) One or more aliphatic diisocyanate compounds having a cyclic structure in the molecule
- the ratio of the NCO group in the component (B1) to the total weight of the NCO groups in the component (B1) and the component (B2) is 25 mol% or more ( The transparent molded article according to 2).
- n 2 and n 3 in the general formula (II) of the component (B 1) are each independently 4, 5 or 6. .
- the molar ratio of the isocyanate group contained in the component (B1) and the isocyanate group contained in the component (B2) to the thiol group contained in the component (A) is in the range of 1.00 to 1.15.
- the present inventors have conducted intensive studies to achieve the second object, and as a result, have obtained a polythiol compound having a specific structure, an aliphatic diol compound, and a polyisocyanate compound having a specific structure.
- the present inventors have found that the above object can be achieved by a transparent molded article obtained by polymerization, and have completed the present invention. That is, means for achieving the second object of the present invention are as follows.
- Component (B 1) - general formula one or more of polyisobutylene Xia sulfonate compound represented by (II) in (formula (II), 11 I n 2, n 3 each independently 3, 4 , 5, 6, 7 or 8) General formula (II)
- Component (B2) One or more aliphatics having a cyclic structure in the molecule v
- the ratio of the NCO group in the component (B1) to the total amount of the NCO groups in the component (B1) and the component (B2) is in a range of 10 to 8 Omo 1%.
- the polyether-based diol compound is polypropylene glycol
- transparent molded article 1 The transparent molded article of the first embodiment of the present invention (hereinafter, referred to as “transparent molded article 1”) is obtained from a polythioethane obtained by polymerizing a monomer component containing the component (A) and the component (B 1). It becomes.
- transparent molded article 2 is a monomer comprising a component (A), a component (Bl), a component (B 2), and a component (C). It is obtained by polymerizing the components.
- a molded article having transparency that does not hinder use as an optical material is included in the “transparent molded article”.
- the index indicating the transparency those corresponding to each of the optical materials using the transparent molded article of the present invention can be used, and examples thereof include light transmittance, haze value, and visual observation.
- the transparent molded article 1 of the present invention is made of polythiourethane obtained by polymerizing a monomer component containing the component (A) and the component (B 1).
- the above-mentioned component (A) is a polythiolide having a 1,4-dithiane ring as a main skeleton represented by the general formula (I), wherein m is 1, 2, 3, 4, 5 or 6. It is a compound, and by containing this main skeleton, it is possible to simultaneously impart a high refractive index and a high Abbe number to a molded product obtained by polymerization without sacrificing weather resistance.
- the viscosity of the component (A) does not become too high, so that good handling properties can be maintained and compatibility with other components is high.
- the optical transparency of a molded article obtained by polymerization can be enhanced.
- m is preferably 1 or 2 from the viewpoint that a molded article having a high refractive index, a high Abbe number and good optical transparency can be obtained.
- the component (A) may be a single compound in which m is any integer from 1 to 6, or a mixture of two or more compounds having different values of m.
- the above component (A) can be synthesized, for example, by a known method described in JP-A-3-233686 and JP-A-10-12706.
- the component (B 1) is isocyanurate represented by the general formula (II) (wherein n 2 and n 3 are each independently 3, 4, 5, 6, 7 or 8)
- the transparent molded article 1 of the present invention has an appropriate cross-linking structure, is provided with high-level balanced heat resistance and impact resistance, and has improved solvent resistance. Will also be excellent.
- n 2 and n 3 are 2 or less. If that, although the molded body is obtained having a high heat resistance, the impact resistance of the obtained molded article will beat low, whereas, if it is 11 I n 2, n 3 of any even one 9 or more Although a molded article having high impact resistance can be obtained, the heat resistance of the obtained molded article decreases. As described above, when n 2 and n 3 are in the range of 3 to 8, the obtained molded body has a good balance between heat resistance and impact resistance, and also has a good balance between the component (B 1) and other raw materials. This is preferred because the compatibility with the components is kept good and a molded article having excellent optical transparency can be obtained.
- 1 ⁇ , n 2 , and n 3 are preferably 4, 5, or 6.
- the component (B 1) can be synthesized by a known method, and some of them can be obtained as a commercial product.
- specific examples of the component (B 1) include tris (6-isocyanatohexyl) isocyanurate and tris (4-isocyanato-butyl) isocyanurate.
- the monomer component containing component (A) and component (B 1) can further contain component (B 2).
- Component (B 2) is one or more aliphatic diisocyanate compounds having a cyclic structure in the molecule.
- the “aliphatic diisocyanate compound having a cyclic structure in the molecule” is an aliphatic diisocyanate compound having a cyclic structure in the main chain or side chain.
- the cyclic structure may be any of an alicyclic ring, an aromatic ring, and a complex ring.
- the “alicyclic” refers to a cyclic hydrocarbon group having 3 or more carbon atoms and not showing aromaticity, and some methylene groups constituting the ring, such as a dithiane ring, are converted to sulfur atoms or the like. The ones that have been replaced, Such bicyclo rings are also included in this.
- aromatic ring refers to a cyclic hydrocarbon group exhibiting aromaticity, and includes a condensed ring such as a naphthalene ring.
- heterocycle refers to one in which the ring is composed of carbon atoms and hetero atoms such as oxygen and sulfur, and which exhibits aromaticity.
- Compounds in which an isocyanate group is directly bonded to an aromatic ring such as the “aromatic ring” and the “heterocycle” are generally called aromatic isocyanate compounds. It does not correspond to the aliphatic diisocyanate compound having a cyclic structure in the molecule used as 2).
- an aliphatic diisocyanate compound having a cyclic structure of “aromatic ring” or “heterocycle” refers to an isocyanate group having 1 or more carbon atoms. Refers to those bonded to these rings via the above alkylene group.
- any of the alicyclic ring, aromatic ring, and heterocyclic ring listed as the above-mentioned cyclic structure may have a substituent such as an alkyl group bonded thereto.
- Aliphatic diisocyanates having a cyclic structure in the molecule are diisocyanate compounds having an alicyclic ring as the cyclic structure in the molecule (hereinafter referred to as “diisocyanate compounds”) from the viewpoint of preventing yellowing of the obtained molded article and maintaining sufficient elasticity and hardness. , And also referred to as “alicyclic diisocyanate compound”). Compared to alicyclic diisocyanates, the isocyanate having an aromatic ring tends to cause yellowing of the obtained molded body, and the aliphatic green isocyanate tends to soften the obtained molded body and decrease shape retention.
- an alicyclic diisocyanate as the component (B 2).
- the alicyclic diisocyanate compound include, for example, 4,4-methylene bis (cyclohexyl isocyanate), isophorone diisocyanate, 1,2_bis (isocyanatomethyl) cyclohexane, 1,3 —Bis (isocyanate 1,4-diisocyanatocyclohexane, 1,2-diisocyanatocyclohexane, 1,3-diisocyanate, 1,4-diisocyanate ⁇ Diisocyanatocyclohexane, 2,5-bis (isocyanatomethyl) 1,1,4-dithiane, 2,3-bis (isocyanate ⁇ "" monomethyl) 1,1,4-dithiane, 2,6-bis (isocyanate) 1,4-dithian, 2,4-bis (isocyanatomethyl)-1,3-
- Examples of the aliphatic diisocyanate compound having an aromatic ring as a cyclic structure in the molecule include m-xylylene diisocyanate, o— Xylylene diisocyanate, p-xylylene diisocyanate, m-tetramethyl xylylene diisocyanate, etc.
- Fats having a heterocyclic ring as a cyclic structure in the molecule The family Jiisoshianeto compounds, for example, 2, 5-bis (Isoshiana one Tomechiru) Chiofen can include 3, 4 one bis (Isoshiana one Tomechiru) Chiofuwen like.
- component (B 2) contains 4,4, -methylenebi from the viewpoints of light resistance and weather resistance.
- (Cyclohexyl isocyanate), isophorone diisocyanate, 1,3-bis (isocyanatomethyl) cyclohexane and 2,5-bis (isocyanato-methyl) -11,4-dithiane It is preferably at least one selected from the group.
- the ratio of the NCO group in the component (B1) to the total amount of the NCO groups in the component (B1) and the component (B2) is 25 m o. It is preferably at least 1%. When this ratio is 25 mo 1% or more, a practically sufficient degree of crosslinking can be obtained in polymerization, and a molded article having high heat resistance and mechanical properties can be obtained. From the viewpoint of heat resistance and mechanical properties,
- the proportion of the NCO group in the component (B 1) is 35 mo 1% or more based on the total amount of NCO groups in the component (B 1) and the component (B 2).
- the isocyanate contained in the component (B1) with respect to the thiol contained in the component (A) is preferably in the range of 1.00 to 1.15, from the viewpoint that a molded article having sufficient toughness (strength) can be obtained.
- the component (B1) and the component (B2) with respect to the thiol group contained in the component (A) are polymerized.
- ) Is preferably in the range of 1.00 to 1.15 from the viewpoint of obtaining a molded article having sufficient toughness (strength).
- the molar ratio is more preferably in the range of 1.02 to 1.12.
- a method including injecting into a mold and then polymerizing the component (A) and the component (B1) by heating to form a molded body can be used.
- the molded article 1 of the present invention is obtained by polymerizing the component (A) and a monomer component containing the component (B 1) and the component (B 2), for example, the component (A) and the component ( A mixture of B1) and component (B2) is poured into a mold, and then component (A) and components (B1) and (B2) are polymerized by heating to form a molded article.
- the heating temperature at that time is generally in the range of ⁇ 20 to 160 ° C. The heating temperature does not need to be constant during the polymerization, but can be changed stepwise.
- the heating time cannot be unconditionally determined depending on the conditions such as the heating temperature, but is generally about 0.5 to 120 hours.
- a polymerization catalyst for improving the polymerizability can be used.
- an organic tin compound is used.
- organometallic compounds and tertiary amines can be used.
- the amount of the catalyst to be used can be, for example, 0..001 to lmol 1% based on the isocyanate group.
- the transparent molded article 1 of the present invention includes, in addition to the above-mentioned components (A), (Bl), and (B2), an ultraviolet absorber for improving light absorption characteristics, a dye, a pigment, and the like.
- an ultraviolet absorber for improving light absorption characteristics
- Various additives such as plasticizers and mold release agents to improve moldability, such as antioxidants and anti-coloring agents to improve moldability, can be added to the transparent molded body as required without problems. It can be contained as appropriate.
- These components can be mixed with each component before the polymerization, can be mixed at the time of the polymerization, and can be impregnated in a molded article obtained after the polymerization.
- the transparent molded article 1 of the present invention may be subjected to a surface treatment such as a hard coat treatment for further improving scratch resistance and an antireflection coat treatment for reducing the reflectance.
- the transparent molded article 1 of the present invention can be, for example, a lens such as an eyeglass lens or an optical lens, a prism, an optical fiber, a recording medium substrate used for an optical disk, a magnetic disk, or the like. And other optical materials.
- the transparent molded article 1 of the present invention can be a lens, particularly preferably a spectacle lens.
- the transparent molded article 2 of the present invention is obtained by polymerizing a monomer component containing the component (A), the component (B1), the component (B2), and the component (C). Is something that can be done.
- the component (A) is a polythiol compound represented by the general formula (I) (where m is 1, 2, 3, 4, 5 or 6) and having a 1,4-dithiane ring as a main skeleton.
- a molded article obtained by polymerization can be simultaneously provided with a high refractive index and a high Abbe number without sacrificing weather resistance.
- the component (B 1) is represented by the general formula (II) (where 11 ⁇ n 2 and n 3 are each independently 3, 4, 5, 6, 7 or 8).
- the polyisocyanate compound has a structure in which an isocyanate group is bonded via an alkylene group represented by Formulas 3 to 8.
- the transparent molded article 2 of the present invention has an appropriate cross-linked structure, imparts a high degree of well-balanced heat resistance and impact resistance, and has solvent resistance. Will also be excellent.
- Component (B 2) is one or more aliphatic diisocyanate compounds having a cyclic structure in the molecule. By including such a component (B 2) in the monomer component, a molded article having more excellent heat resistance can be obtained.
- component (A), the component (Bl), and the component (B2) are described in the first embodiment. As described above. Next, the component (C) will be described.
- Component (C) is an aliphatic diolic compound.
- the aliphatic diol compound as the component (C) preferably has a number average molecular weight in the range of 300 to 2000. When the number average molecular weight of the Diolich compound is 300 or more, toughness can be effectively imparted to the obtained molded article, and when it is 200 or less, the hardness of the obtained molded article is maintained and the shape is maintained.
- the number average molecular weight of the diol compound is more preferably in the range of 600 to 1500.
- Such diol compounds include, for example, polyester-based diol compounds such as polyethylene glycol, polypropylene glycol, polytetramethylene dalichol, etc., polyester glycols composed of ethylene glycol and adipic acid, and propylene glycol.
- Polyester diol composed of adipic acid, polyester diol composed of diethylene glycol and adipic acid, polyester diol composed of 1,4-butanediol and adipic acid, polyester diol composed of neopentyl glycol and adipic acid, 1,6- Polyester diol consisting of xandiol and adipic acid, polyester diol consisting of 1,10-decanediol and adipic acid, and polyether consisting of 1,4-butanediol and glutaric acid Terujioru, 1, 4 poly comprising a single-butanediol and sebacic acid Ester diols, Porikapu butyrolactone diol comprising ethylene da recall and epsilon Ichiriki Purorataton, propylene da recall and epsilon - Poly force Purorata tons diol comprised force Purorataton, poly force Purorakutonjio one Honoré consist
- the aliphatic diol compound is preferably a polyether diol compound because the viscosity is low and the handleability is excellent at the same molecular weight.
- the aliphatic diol compound is polypropylene glycol. Is preferred.
- Such an aliphatic diol compound can be synthesized by a known method, and some of them can be obtained as a commercial product.
- the mass ratio of the component (C) to the total mass of the components ( ⁇ ) and (C) is preferably in the range of 3 to 60%. Better.
- the above mass ratio is more preferably in the range of 8 to 40%.
- the NCO group in the component (B 1) is determined based on the total amount of the NCO group in the component (B 1) and the component ( ⁇ 2). Is preferably in the range of 10 to 8 Omo 1%.
- the ratio is 1 Omo 1% or more, a practically sufficient degree of crosslinking can be obtained in polymerization, and a molded article having high heat resistance and mechanical properties can be obtained.
- the proportion is 8 Omo 1% or less, the compatibility of the component (B 1) and the component (B 2) with the component (A) and the component (C) is high, and sufficient transparency for practical use
- a molded article having the following can be obtained.
- the component (B 1) based on the total amount of the NCO groups of the component (B 1) and the component (B 2) More preferably, the proportion of the NCO groups therein is in the range of 15 to 65 mol%.
- the component (B1) and the component (B2) with respect to the total of the thiol group contained in the component (A) and the hydroxyl group contained in the component (C). )) Is preferably in the range of 1.00 to 1.15 from the viewpoint that a molded article having sufficient toughness (strength) can be obtained.
- the molar ratio is more preferably in the range of 1.02 to 1.12.
- the transparent molded article 2 of the present invention is obtained by polymerizing a monomer component containing the component (A), the component (B1), the component (B2), and the component (C), for example, the component (A)
- a mixture of component (Bl), component (B2), and component (C) is poured into a mold, and then component (A), component (B1), component (B2), and A method including polymerizing the component (C) by heating to form a molded article can be used.
- the mixture to be poured into the mold may be a simple mixture of component (A), component (B1), component (B2), and component (C), or component (C).
- the reaction may be carried out using a urethane reaction catalyst such as an organic metal compound such as a compound or a tertiary amine to form a urethane bond, and then a component (a mixture may be added by adding the component (2).
- C) and the component (B 1) are reacted in advance, for example, under the same conditions as above, to form a urethane bond, and then the component (B 2) and the component (A) are added to form a mixture;
- the component (C) and the component (B 2) are reacted in advance, for example, under the same conditions as above, to form a urethane bond.
- the heating temperature in the polymerization of the mixture is generally in the range of 120 to 160 ° C.
- the heating temperature is constant during the polymerization. It is not necessary and can be changed step by step.
- the heating time cannot be determined unconditionally depending on the conditions such as the heating temperature, etc., but is generally about 0.5 to 120 hours.
- a polymerization catalyst for improving the polymerizability can be used, and specifically, an organometallic compound such as an organic tin compound, tertiary amine, or the like can be used.
- the transparent molded article 2 of the present invention further comprises the component (A), the component (Bl), and the component (B).
- B 2) and component (C) moldability such as ultraviolet and ray absorbents to improve light absorption characteristics, dyes and pigments, and antioxidants and coloring inhibitors to improve weather resistance
- Various additives such as a plasticizer and a release agent for improving the These components can be mixed with each component before polymerization, can be mixed at the time of polymerization, and can be impregnated into a molded article obtained after polymerization. It can also be done.
- the transparent molded body 2 of the present invention can be subjected to a surface treatment such as a hard coat treatment for further improving the scratch resistance and an antireflection coat treatment for reducing the reflectance.
- the transparent molded body 2 of the present invention can be, for example, a lens such as an eyeglass lens or an optical lens, a prism, an optical fiber, a recording medium substrate used for an optical disk, a magnetic disk, or the like. It can also be a material.
- the transparent molded body 2 of the present invention can be a lens, and particularly preferably a spectacle lens.
- the measurement was performed at 20 ° C. using an Abbe refractometer 3T type manufactured by Atago.
- the obtained lenses were visually observed, and those with no coloring were designated as A, those with slight coloring (yellow) as B, and those with obvious coloring as C.
- the obtained lens was visually observed by a Schlieren method. A was given when there was no distortion, B was given when there was only a slight distortion at the periphery, and C was given when the whole was distorted.
- a measuring piece having a width of 5 mm, a depth of 5 cm, and a height of 16 thighs was prepared and subjected to a crushing test at 20 ° C. using a Dynestat tester manufactured by Toyo Seiki Seisaku-sho. From the obtained results, the energy required for destruction was calculated, and the value was used as an index of impact resistance. The higher the energy value, the greater the impact resistance.
- Table 1 shows the physical properties of the obtained plastic lens.
- Table 1 shows that the lens of Example 1 has a high refractive index (nD) of 1.61, a high Abbe number (VD) of 40, no coloring, excellent transparency, and low optical distortion. There was nothing. Also destructive energy The lug value was also 120 (kg ⁇ cmZcm 2 ), indicating a high impact resistance. (Examples 2 to 6)
- a plastic lens was obtained in the same manner as in Example 1, except that the monomer compositions shown in Table 1 were used.
- Table 1 shows the physical properties of these plastic lenses.
- Table 1 shows that the plastic lenses of Examples 2 to 6 have a high refractive index (nD) of 1.60 to 1.64, a high Abbe number (vD) of 39 to 41, no coloring, and no transparency. It had excellent lightness and had no optical distortion.
- the fracture energy value was 90 to 120 kg ⁇ cm / cm 2 , indicating high impact resistance.
- Table 1 shows that the plastic lens of Comparative Example 1 had a high refractive index of 1.60 and a high Abbe number of 41, was free from coloring, had excellent transparency, and had no optical distortion. However, the crushing energy value was 35 kg-cm / cm 2 , and the impact resistance was low.
- a plastic lens was obtained in the same manner as in Comparative Example 1, except that the monomer composition shown in Table 1 was used. Table 1 shows the physical properties of these plastic lenses. From Table 1, the plastic lens of Comparative Example 2 has a high refractive index of 1.62, no coloring, excellent transparency, and no optical distortion was observed, but the Abbe number was slightly low at 38. In the evaluation of the impact resistance, the impact resistance was so low that the blasting energy value could not be calculated. Furthermore, the plastic lens of Comparative Example 3 had a high refractive index of 1-63, a high Abbe number of 40, no coloring, excellent transparency, and no optical distortion. On the other hand, the rupture energy value was 45 kg ⁇ cm / cm 2 , and the impact resistance was low.
- GY tris (4-isocyanato-butyl) isocyanurate
- DBTD di-n-butyltin dilaurate
- DBTDG di- ⁇ -butyltin dichloride
- NDI Norpollendiisocyanate
- LTI Lysine triisocyanate
- Table 2 shows the physical properties of the obtained plastic lens.
- Table 2 shows that the lens of Example 7 has a high refractive index (nD) of 1.61, a high Abbe number (vD) of 41, no coloring, excellent transparency, and low optical distortion. There was no one. Also, the fracture energy value was 155 kg * cmZcm 2 , and the impact resistance was high.
- Example 7 The same operation as in Example 7 was performed except that the monomer components shown in Table 2 were used, and a plastic lens was obtained.
- Table 2 shows the physical properties of these plastic lenses together with the physical properties of the lens of Example 7. From Table 2, the plastic lenses of Examples 8 to 12 have high refractive indices (nD) of 1.60 to 1.64, and high Abbe numbers D) of 39 to 42. It had excellent properties and had no optical distortion.
- the Yabu ⁇ energy value also indicates 135 ⁇ 160 kg ⁇ cm / cm 2 , impact It was highly likely.
- the (nD) was as high as 1.60, the Abbe number ( ⁇ 40) was as high as 40, and there was no coloring, excellent transparency, and no optical distortion.
- the rupture energy value was 13 1 kg.cm/cm 2 , indicating a high impact strength.
- the refractive index is 1.60 or more, the Abbe number is 39 or more, and the transparency is excellent, and there is neither coloring nor optical distortion.
- a lens having excellent characteristics such as a fracture energy value of 130 kg ⁇ cm / cm 2 or more and an excellent impact resistance can be obtained.
- Table 2 shows that the plastic lens of Comparative Example 4 had a high refractive index of 1.60 and a high Abbe number of 41, had no coloring, was excellent in transparency, and had no optical distortion. However, the fracture energy value was 35 kg ⁇ cm / cm 2 and the impact resistance was low.
- a plastic lens was obtained in the same manner as in Comparative Example 4 except that the monomer components shown in Table 2 were used.
- the physical properties of these plastic lenses are shown in Table 2 together with the physical properties of the lenses of Examples 7 to 13 and Comparative Example 4.
- the plastic lens of Comparative Example 5 is a lens obtained by polymerizing the monomer component for obtaining the transparent molded article 2 of the present invention by removing the component (C) and the component (B1).
- Table 2 shows that the lens of Comparative Example 5 had a high refractive index of ⁇ .62, no coloration, excellent transparency, and no optical distortion, but had a slightly lower Abbe number of 38, and In the evaluation of the impact resistance, the impact resistance was so low that the fracture energy value could not be calculated.
- the plastic lens of Comparative Example 6 had a high refractive index of 1.63 and a high Atsube number of 41, was free from coloring, had excellent transparency, and had no optical distortion.
- the blasting energy value was 45 kg ⁇ cmZcm 2 , and the impact resistance was low.
- the plastic lens of Reference Example 1 is a monomer for obtaining the transparent molded body 2 of the present invention. This is a lens obtained by polymerizing one component after removing component (C). From Table 2, the lens of Reference Example 1 has a high refractive index of 1.61, a high Abbe number of 40, no coloring, excellent transparency, and no optical distortion.
- the rupture energy value was also 120 kg ⁇ cmZcm 2 , which was higher in impact resistance than the lens of Comparative Example 5 which did not contain the component (B 1). It was inferior to the transparent molded article 2 of the invention.
- DMMD 2,5-bis (mercaptomethyl) -1,4-dithiane
- MMDDi 2,5-bis (mercaptomethyl) -1,4-dithiane disulfide dimer 1
- P1000 number average molecular weight 100,000 Polypropylene glycol
- P700 Polypropylene glycol with a number average molecular weight of 700
- P1200 Polypropylene glycol with a number average molecular weight of 1200
- PBG 1,4-butanediol with a number average molecular weight of 10000
- CX Tris (6-isocyanatohexyl) isocyanurate
- CY Tris (4-isocyanatobutyl) isocyanurate
- HXDI 1,3-bis (isocyanatomethyl) cyclohexane
- BIMD 2,5-bis (isocyanatomethyl)-1,4-dithiane
- DBTDL di-n-butylt
- the transparent molded article 1 of the present invention has characteristics such as excellent refractive index, Abbe number, weather resistance, solvent resistance, transparency, and no optical distortion. It has the feature of excellent impact resistance. Therefore, the transparent molded article 1 of the present invention can be suitably used for an eyeglass lens, an optical lens such as a camera lens, and the like. According to the second aspect of the present invention, it has a refractive index and transparency equal to or higher than that of a molded body conventionally used for an optical material such as a lens, and is conventionally used for an optical material such as a lens. It is possible to provide a transparent molded body 2 having a higher impact strength than that of the molded body and suitable for optical use.
- the transparent molded article 2 of the present invention has excellent features such as a high Abbe number, excellent weather resistance and solvent resistance, and no optical distortion.
- the transparent molded body 2 of the present invention can be suitably used for various lenses including spectacle lenses, camera lenses, prisms, optical fibers, recording medium substrates, filters, and the like.
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- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
- Laminated Bodies (AREA)
- Materials For Medical Uses (AREA)
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005506863A JP4719000B2 (ja) | 2003-06-09 | 2004-06-09 | 眼鏡レンズ |
CA002528763A CA2528763A1 (en) | 2003-06-09 | 2004-06-09 | Transparent molded article |
AT04745933T ATE449803T1 (de) | 2003-06-09 | 2004-06-09 | Transparenter formkörper |
EP04745933A EP1637553B1 (en) | 2003-06-09 | 2004-06-09 | Transparent shaped body |
AU2004245407A AU2004245407B2 (en) | 2003-06-09 | 2004-06-09 | Transparent molded article |
DE602004024307T DE602004024307D1 (de) | 2003-06-09 | 2004-06-09 | Transparenter formkörper |
US11/296,526 US20060149018A1 (en) | 2003-06-09 | 2005-12-08 | Transparent molded article |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-163144 | 2003-06-09 | ||
JP2003163144 | 2003-06-09 | ||
JP2003279777 | 2003-07-25 | ||
JP2003-279777 | 2003-07-25 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/296,526 Continuation US20060149018A1 (en) | 2003-06-09 | 2005-12-08 | Transparent molded article |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004108787A1 true WO2004108787A1 (ja) | 2004-12-16 |
Family
ID=33513396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008381 WO2004108787A1 (ja) | 2003-06-09 | 2004-06-09 | 透明成形体 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060149018A1 (ja) |
EP (1) | EP1637553B1 (ja) |
JP (1) | JP4719000B2 (ja) |
KR (1) | KR20060009384A (ja) |
AT (1) | ATE449803T1 (ja) |
AU (1) | AU2004245407B2 (ja) |
CA (1) | CA2528763A1 (ja) |
DE (1) | DE602004024307D1 (ja) |
WO (1) | WO2004108787A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007020818A1 (ja) | 2005-08-18 | 2007-02-22 | Mitsui Chemicals, Inc. | ポリウレタン・チオウレタン系光学用樹脂およびその製造方法 |
WO2008026727A1 (fr) * | 2006-08-31 | 2008-03-06 | Hoya Corporation | Procédé de fabrication d'une résine de polythiouréthane |
EP1925629A1 (en) * | 2005-08-18 | 2008-05-28 | Mitsui Chemicals, Inc. | Polythiourethane-based polymerizable composition and optical resin obtained from the same |
CN101155848B (zh) * | 2005-04-11 | 2011-10-26 | 三井化学株式会社 | 聚硫氨酯类聚合性组合物及使用该组合物的光学用树脂的制备方法 |
WO2015137401A1 (ja) * | 2014-03-11 | 2015-09-17 | 三井化学株式会社 | 光学材料用重合性組成物および光学材料 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4473267B2 (ja) | 2004-03-12 | 2010-06-02 | 三井化学株式会社 | ポリウレタン系重合性組成物およびそれからなる光学用樹脂の製造方法 |
JP5175732B2 (ja) | 2006-09-21 | 2013-04-03 | 三井化学株式会社 | ポリチオウレタン系光学材料用重合触媒、それを含む重合性組成物、それより得られる成形体、及びポリチオウレタン樹脂の製造方法 |
US9353209B2 (en) | 2012-04-23 | 2016-05-31 | Covestro Deutschland Ag | Lightfast polyurethane compositions |
KR102029256B1 (ko) * | 2017-09-28 | 2019-11-29 | 에스케이씨 주식회사 | 플라스틱 렌즈용 중합성 조성물 |
JP7296755B2 (ja) * | 2019-03-28 | 2023-06-23 | ホヤ レンズ タイランド リミテッド | 光学部材用樹脂組成物、光学部材、及び眼鏡レンズ |
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- 2004-06-09 EP EP04745933A patent/EP1637553B1/en not_active Expired - Lifetime
- 2004-06-09 AT AT04745933T patent/ATE449803T1/de not_active IP Right Cessation
- 2004-06-09 DE DE602004024307T patent/DE602004024307D1/de not_active Expired - Lifetime
- 2004-06-09 WO PCT/JP2004/008381 patent/WO2004108787A1/ja active Application Filing
- 2004-06-09 AU AU2004245407A patent/AU2004245407B2/en not_active Ceased
- 2004-06-09 JP JP2005506863A patent/JP4719000B2/ja not_active Expired - Lifetime
- 2004-06-09 CA CA002528763A patent/CA2528763A1/en not_active Abandoned
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US8455610B2 (en) | 2005-04-11 | 2013-06-04 | Mitsui Chemicals, Inc. | Polythiourethane polymerizable composition and method for producing optical resin by using same |
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CN101155848B (zh) * | 2005-04-11 | 2011-10-26 | 三井化学株式会社 | 聚硫氨酯类聚合性组合物及使用该组合物的光学用树脂的制备方法 |
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CN106232658A (zh) * | 2014-03-11 | 2016-12-14 | 三井化学株式会社 | 光学材料用聚合性组合物及光学材料 |
JPWO2015137401A1 (ja) * | 2014-03-11 | 2017-04-06 | 三井化学株式会社 | 光学材料用重合性組成物および光学材料 |
US10266636B2 (en) | 2014-03-11 | 2019-04-23 | Mitsui Chemicals, Inc. | Process for producing episulfide compound for optical material, episulfide-containing composition, and polymerizable composition for optical material including the same composition |
Also Published As
Publication number | Publication date |
---|---|
EP1637553B1 (en) | 2009-11-25 |
AU2004245407B2 (en) | 2008-12-04 |
CA2528763A1 (en) | 2004-12-16 |
DE602004024307D1 (de) | 2010-01-07 |
KR20060009384A (ko) | 2006-01-31 |
EP1637553A1 (en) | 2006-03-22 |
AU2004245407A1 (en) | 2004-12-16 |
ATE449803T1 (de) | 2009-12-15 |
JP4719000B2 (ja) | 2011-07-06 |
EP1637553A4 (en) | 2008-07-02 |
US20060149018A1 (en) | 2006-07-06 |
JPWO2004108787A1 (ja) | 2006-07-20 |
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