WO2008018168A1 - Lentille polarisante en plastique et procédé servant à produire celle-ci - Google Patents
Lentille polarisante en plastique et procédé servant à produire celle-ci Download PDFInfo
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- WO2008018168A1 WO2008018168A1 PCT/JP2007/000826 JP2007000826W WO2008018168A1 WO 2008018168 A1 WO2008018168 A1 WO 2008018168A1 JP 2007000826 W JP2007000826 W JP 2007000826W WO 2008018168 A1 WO2008018168 A1 WO 2008018168A1
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- compound
- bis
- group
- polarizing lens
- lens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0073—Optical laminates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
Definitions
- the present invention relates to a plastic polarizing lens and a method for manufacturing the same.
- a polarizing lens can prevent transmission of reflected light. Therefore, it is used to protect eyes by blocking strong reflected light outdoors such as ski resorts and fishing, and to ensure safety by blocking reflected light from oncoming vehicles when driving.
- a polarizing lens in which a polarizing film is arranged on the surface of a lens material and a polarizing lens with a San German structure in which a polarizing film is arranged inside the lens material.
- a polarizing lens in which a polarizing film is arranged on the surface of a lens material can reduce the lens thickness, In the process (the step of cutting the edge of the lens to match the predetermined shape), there is a serious drawback that the polarizing film is easily peeled off from the lens material.
- the resin applied to the polarizing film constituting the polarizing lens has been substantially limited to polyvinyl alcohol.
- a polarizing film is produced by making a polyvinyl alcohol film uniaxially stretched by including iodine or a dichroic dye into a film having molecular orientation in a uniaxial direction.
- a method for producing a polarizing lens comprising a polyvinyl alcohol polarizing film is disclosed, for example, in International Publication No. 04/098859 (Patent Document 2).
- Patent Document 3 In order to remedy the above-mentioned drawbacks, International Publication No. 0 2/0 7 3 2 9 1 pamphlet (Patent Document 3) is composed of an impact-resistant polyurethane resin obtained from diamine and isocyanate prepolymer. A polarizing lens using a lens material and a polyethylene terephthalate polarizing film has been proposed.
- this polarizing lens clearly has a polarizing film, and has a drawback that many users feel uncomfortable when wearing it. Furthermore, a composition in which diamine and isocyanate prepolymer are mixed has a high viscosity and a short pot life, so that it is difficult to inject into a lens casting mold with a polarizing film fixed. The production of thin lenses has been extremely difficult. As described above, in the conventional plastic polarizing lens, the occurrence of peeling of the polarizing film in the outer periphery polishing process, which is a subsequent process, is suppressed, the water resistance is excellent, the discomfort during wearing is suppressed, or the thickness can be reduced. There was a need for a plastic polarizing lens.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9-258090
- Patent Document 2 International Publication No. 0 4/0 9 9 8 5 9 Pamphlet
- Patent Document 3 International Publication No. 0 2/0 7 3 2 9 No. 1
- the present invention has been made in view of the above-described background art, and provides a plastic polarizing lens excellent in processing characteristics and the like, and a method for manufacturing the same.
- a plastic polarizing lens characterized in that a layer made of a cholethane-based resin obtained by reacting is laminated.
- thermoplastic polyester is polyethylene terephthalate.
- the polarizing film is selected from the group consisting of a silane coupling agent treatment, a sodium hydroxide aqueous solution treatment, an atmospheric pressure or vacuum plasma treatment, a corona discharge treatment, and a coating treatment with a urethane resin in advance.
- the plastic polarized lens according to (1) or (2) which has been processed by two or more methods.
- the isocyanate compound (A) is 2,5-bis (isocyanatomethyl) bicyclo_ [2. 2. 1] _heptane, 2,6-bis (isocyanate).
- Active hydrogen compound (B) force pentaerythritol tetrakis (3-mercaptopropionate), 4_mercaptomethyl_1,8-dimercapto-3,6-dithiaoctane, 5,7-dimercaptomethyl_1,11-dimercapto -3, 6, 9-trithiaundecane, 4, 7-dimercaptomethyl-1, 1 1-dimercapto-3, 6, 9_trithiaundecane, 4,8-dimercaptomethyl-1, 1 1- Dimercapto-3,6,9-trithiaundecane, 1,1,3,3-tetrakis (mercaptomethylthio) propane, 4,6_bis (mercaptomethylthio) 1 1,3-dithiane, and 2_ (2, 2 _Bis (mercaptomethylthio) ethyl)
- the plastic polarizing lens according to any one of (1) to (4), which is one or more polythiol compounds selected from the group consisting of 1,
- a method for producing a plastic polarizing lens comprising: one or more active hydrogen compounds selected from the group consisting of a thiol compound having a hydroxy group and a polythiol compound.
- thermoplastic polyester is polyethylene terephthalate.
- the polarizing film is selected from the group consisting of a silane coupling agent treatment, a sodium hydroxide aqueous solution treatment, an atmospheric pressure or vacuum plasma treatment, a corona discharge treatment, and a coating treatment with a urethane resin 1
- a silane coupling agent treatment a sodium hydroxide aqueous solution treatment
- an atmospheric pressure or vacuum plasma treatment a corona discharge treatment
- a coating treatment with a urethane resin 1 The method for producing a plastic polarizing lens according to (8) or (9), wherein the method is processed by two or more kinds of seeds.
- Active hydrogen compound (B) force pentaerythritol tetrakis (3-mercaptopropionate), 4_mercaptomethyl_1,8-dimercapto-3,
- 6-dithiaoctane 5,7-dimercaptomethyl_1,1 1-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,1,1 1-dimercapto-3,6,9_ Trithiaundecane, 4,8-dimercaptomethyl-1,1,1-dimercapto-3,6,9-trithiaundecane, 1,1,3,3-tetrakis (mercaptomethylthio) propane, 4,6_bis (Mercaptomethylthio) 1, 1-, 3-dithiane, and 2_ (2, 2_bis (mercaptomethylthio) ethyl) 1, 1- or 2 or more polythiol compounds selected from the group consisting of 1,3-di triben ( 8) The method for producing a plastic polarizing lens according to any one of (1) to (11).
- the plastic polarizing lens of the present invention is excellent in processing characteristics and the like. Therefore, it is particularly useful as a polarizing lens for a glass.
- FIG. 1 is a cross-sectional view schematically showing a plastic polarizing lens according to an embodiment.
- FIG. 2 is a cross-sectional view schematically showing a lens casting saddle according to an embodiment.
- the plastic polarizing lens 10 of the present invention has a resin layer (lens material) made of thiourethane resin on both sides of a polarizing film 12 made of thermoplastic polyester. Is formed.
- polyethylene terephthalate polyethylene naphthalate, polybutylene terephthalate, and the like can be used as the thermoplastic polyester. From the viewpoint of water resistance, heat resistance, and molding processability. To polyethylene terephthalate. Those modified by adding a copolymer component are also included.
- the plastic polarizing lens in which a resin layer made of a cholesteric resin is laminated on both sides of a polarizing film made of such a thermoplastic polyester, it is excellent in water resistance, suppresses discomfort during wearing, and is thin. In addition, the peeling of the polarizing film is suppressed in the subsequent peripheral polishing step. In other words, the balance of these characteristics is excellent.
- the polarizing film made of the thermoplastic polyester in the present invention is disclosed in, for example, Japanese Patent Application Laid-Open No. 2 0202 — 2 6 7 8 4 1. Specifically, it is a polarizing film having a thermoplastic polyester as a matrix, and a dichroic dye is blended with a thermoplastic polyester to form a film, and then the obtained film is stretched in a uniaxial direction. Thereafter, it can be obtained by heat treatment at a predetermined temperature.
- the thickness is usually in the range of 10 to 500 m.
- a known dye is used as the dichroic dye used in the present invention.
- Specific examples include anthraquinone, quinophthalone, and azo dyes. Those having heat resistance capable of withstanding the molding of thermoplastic polyester are preferred.
- the polarizing film comprising the thermoplastic polyester in the present invention is usually used after being shaped into a desired curvature by a known method.
- the polarizing film is treated with primer coating, chemical treatment (gas or chemical treatment), corona discharge treatment, plasma treatment, ultraviolet irradiation treatment, electron beam irradiation treatment, It may be used after one or more kinds of pretreatments selected from roughening treatment, flame treatment and the like are performed.
- pretreatments one or more selected from primer coating treatment, chemical treatment, corona discharge treatment, and plasma treatment are particularly preferred.
- the pretreatment may be performed before or after the shaping to the desired curvature shape.
- primer coating treatment examples include a coating treatment of a silane force pulling agent, and a resin coating treatment that may contain a silane force pulling agent.
- Examples of the silane coupling agent used in the primer coating treatment include an epoxy group, an amino group, a (meth) acryloyl group, a vinyl group, a mercapto group, a halogen group, an imino group, and an isocyanate group.
- a silane force pulling agent having one or more substituents of any one of the ureido groups can be mentioned.
- Examples of the hydrolyzable group bonded to the silicon atom of the silane-powered pulling agent include an alkoxy group which may have two or more oxygen atoms, an alkyl group, a oxyl group, and a halogen group. Of these, alkoxysilane compounds having an alkoxy group which may have two or more oxygen atoms are more preferable.
- r-glycidoxypropyltrimethoxysilane examples include r-glycidoxypropylmethyljetoxylan, S_ (3,4-epoxycyclohexyl) ethyltrimethoxysilane, r-glycidoxypropylmethyl jetoxysilane, etc.
- a silane force pulling agent having an epoxy group examples include r-glycidoxypropyltrimethoxysilane, r-glycidoxypropylmethyljetoxylan, S_ (3,4-epoxycyclohexyl) ethyltrimethoxysilane, r-glycidoxypropylmethyl jetoxysilane, etc.
- Silane coupling agents having a mercapto group such as —mercaptopropyl trimethoxysilane, —mercaptopropylmethyldimethyloxysilane, —mercaptopropyltriethoxysilane;
- -Halogen-containing silane coupling agents such as black-mouthed propylene trimethoxysilane, and black-headed propyltriethoxysilane;
- Silane-powered prepregs with isocyanate groups such as isocyanatopropyl trimethoxysilane, —isocyanate propyltriethoxysilane;
- silane coupling agents are: r-glycidoxypropyltrimethoxysilane, aminopropyl trimethoxysilane, N_S_
- -methacryloxypropyl trimethoxysilane -methacryloxyp oral pyrmethyldimethoxysilane
- -methacryloxypropyltriethoxysilane -methacryloxypropylmethyljetoxysilane
- -methacryloxypropyltris (methoxoxy) trisilane -methacryloxypropyltris (methoxoxy) trisilane
- (Meth) acryloxyalkylalkoxysilanes such as vinyltrichlorosilane are particularly preferred.
- the silane coupling agent in applying the silane coupling agent to the polarizing film made of the thermoplastic polyester in the present invention, it may be applied as it is without solvent, but usually an appropriate solvent system is selected and the silane coupling is performed. It is preferable to apply using a coating solution in which the agent is dissolved or dispersed.
- Solvents include water, alcohol compounds such as methanol, ethanol and isopropanol, aromatic compounds such as toluene and xylene, ester compounds such as ethyl acetate, ketone compounds such as acetone and methyl ethyl ketone, It can be selected from halogen compounds such as dichloromethane, and can be used alone or in combination of two or more. These include combinations where the functional groups in the organic group of the silane coupling agent and the solvent are likely to chemically react, such as amino groups and asetones, or isocyanate groups and methanol. In the case where it is preferable to incorporate the above reaction, it is selected from a functional group in the organic group and a chemically inert solvent.
- Silane-powered coupling agents are used to hydrolyze alkoxide groups bonded to the silicon atom. These have hydrolyzable groups, which react with water to hydrolyze to form silanol groups, and the silanol groups dehydrate and condense and polymerize on the basis of one Si-os i- bond. However, if the degree of progress is extremely high, it will be deposited as a precipitate. A series of these reactions proceeds at a reaction rate according to the set conditions. It can be used as a coating solution in any stage of the series of reactions, including the stage where hydrolysis has not occurred, but preferably, hydrolysis proceeds partially and _S i -os i is due to the formation of a single bond. It is used in the state before the polymer compound is substantially precipitated.
- the water contained in the solvent in which the silane coupling agent is dissolved or dispersed is also considered in the same manner as the added water.
- water may be added to a high concentration silane pulling agent solution in advance and then diluted to a desired concentration with a solvent.
- a solvent containing water in a desired range may be used in advance.
- the solvent is water, or depending on the amount of water added, or depending on the storage environmental conditions of the coating solution, the time that can be used as the coating solution is selected.
- the concentration of the coating solution in terms of a silane force pulling agent is 300 g to 0.01 g / L, preferably 30 g to 0.05 g / L, more preferably 5 g to 0.1 g / L. It is. If it exceeds 300 g / L, the coating amount is too large, which is not only economically wasteful, but the adhesive layer may be visually recognized in the formed lens. Some of the above problems can be solved by cleaning the surface with only the solvent after application exceeding 300 g / L, but there are usually no advantages over the initial setting. If the concentration in terms of silane coupling agent is less than 0.01 g / L, the amount of silane coupling agent applied at one time will be insufficient, and polarization will occur during lens molding. Impairs adhesion to the film. Although the amount of application can be increased to the required level by repeated application, there is usually no advantage over the initial setting.
- the fluid coating liquid portion is removed on the film and dried as necessary.
- the drying temperature is not particularly limited as long as it is 200 ° C. or lower, but preferably 5 to 100 ° C., more preferably 10 to 100 ° C. so that the condensation reaction of the silane coupling agent does not proceed excessively.
- a range of 80 ° C., particularly preferably 20 to 70 ° C. is appropriate.
- the drying time is set according to the environment such as the solvent to be used, the drying temperature, or the air blowing condition, and is not particularly limited, but is usually in the range of 10 seconds to 60 minutes, preferably 20 seconds to 30 minutes. .
- the method of applying the coating solution on both surfaces of the polarizing film made of the thermoplastic polyester in the present invention and a method of bending the polarizing film after treatment with a silane force coupling agent, Silane force pulling after processing, and both methods can be broadly classified, but either method can be used. Depending on the situation, roll coating, spin coating, spray coating, etc. Conventionally known methods such as the auto method, the bar coat method, and the dubbing method can be employed. After drying, it can be applied once or more times, and in this case, the type of each coating solution may be the same or different. Usually, the object of the present invention can often be achieved by a single application and drying without repeated application.
- a pH adjusting agent an organic tin compound, or an inorganic compound is added as necessary without departing from the scope of the present invention.
- a catalyst such as an acid or an organic acid may be added.
- pH adjusting agents include organic acids such as acetic acid, oxalic acid, formic acid, and succinic acid. These include the storage stability of a solution or dispersion of a silane pulling agent, adjustment of the pot life of the coated polarizing film, or faster hydrolysis. It can be used as needed for the purpose of achieving a curing rate.
- primer coating treatment examples include the above-mentioned "application treatment of a resin that may contain a silane coupling agent”.
- the resin examples include polyester resins, epoxy resins, urethane resins, acrylic resins, and cellulose resins. From the viewpoints of transparency and the like, among these, saturated or unsaturated polyester resins and urea resins are preferable, and urea resins are particularly preferable.
- the resin may be used in combination with a solvent, and examples of the solvent include organic solvents and water. When the solvent is water, the resin is emulsified or dispersed.
- the polarizing film Prior to the primer-coating process, the polarizing film is preliminarily treated with a gas or chemical solution, a corona discharge process, a plasma process, an ultraviolet irradiation process, an electron beam irradiation process, a roughening process, a flame process, etc.
- a gas or chemical solution e.g., a corona discharge process, a plasma process, an ultraviolet irradiation process, an electron beam irradiation process, a roughening process, a flame process, etc.
- the method for applying the resin used for the primer coating treatment to the polarizing film there is no particular limitation on the method for applying the resin used for the primer coating treatment to the polarizing film, and conventionally known methods such as a roll coating method, a spin coating method, a spray coating method, a bar coating method, and a dipping method. The method can be adopted.
- silane coupling agent coating treatment from silane coupling agent coating treatment, gas or chemical treatment, corona discharge treatment, plasma treatment, ultraviolet irradiation treatment, electron beam irradiation treatment, roughening treatment, flame treatment, etc.
- One or more selected pretreatments may be performed.
- the polyester-based resin used for the primer-coating treatment is a copolymerized polyester composed of a dicarboxylic acid-derived structural unit and a glycol-derived structural unit.
- dicarboxylic acids include aliphatic, aromatic, or aliphatic / aromatic dicarboxylic acids that may have a functional group.
- the functional group include a sulfonic acid group and an alkali metal salt or ammonium salt with the acid. Dicarboxylic acids can be used by selecting one or more from these examples.
- Dicarboxylic acids having no functional group include aromatic dicarboxylic acids such as isophthalic acid, phthalic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, and aliphatic dicarboxylic acids such as adipic acid, azelaic acid, and sebacic acid, Examples thereof include alicyclic dicarboxylic acids such as 1,3-cyclohexanedicarboxylic acid and 1,4-cyclohexanedicarponic acid, and one or more kinds can be selected and used.
- glycol that is a monomer of the polyester resin examples include aliphatic, aromatic, and aliphatic / aromatic glycols. Of these, aliphatic glycols are particularly preferred. Specific examples of the aliphatic glycol include ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-monobutanediol, 1,5-pentanediol, and 1,6-hexanediol. , Neopentyl glycol, trimethylolpropane, bisphenol A ethylene oxide adduct, and the like, and one or more can be selected and used.
- the urethane-based resin used for the primer coating treatment is a polymer composed of a structural unit derived from a polyhydroxyl compound and a structural unit derived from a polyisocyanate.
- the polyhydroxy compound include polyester diol, polyether diol, polythioether diol, polylactone diol, and polyacetal diol.
- polyester diol and polyether diol are preferable.
- polyester diol examples include ethylene glycol and propylene glycol.
- Diols such as saturated polyhydric alcohols exemplified by recall, butylene glycol, diethylene glycol, neopentyl glycol, hexamethylene glycol, trimethylolpropane, etc., or unsaturated polyhydric alcohols exemplified by butenediol, etc.
- saturated fatty acids such as adipic acid and sebacic acid
- unsaturated fatty acids such as maleic acid and fumaric acid
- aromatics such as isophthalic acid, phthalic acid and terephthalic acid
- a polyester having a hydroxyl group at the terminal obtained by reacting an organic dicarboxylic acid such as carboxylic acid or its anhydride, or a mixture thereof, or a lactone such as methyl proprolacton with a strong prolactam.
- Polyethylene obtained by ring-opening polymerization with And the like ethers.
- polyether diol are obtained by ring-opening polymerization or ring-opening copolymerization of ethylene oxide, propylene oxide, epichlorohydrin, oxacyclobutane, substituted oxacyclobutane or tetrahydrofuran.
- examples thereof include a polymer or copolymer having a hydroxyl group at the terminal and a mixture thereof.
- Polyisocyanates that are monomers of the urethane resin include 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate, 1,8-octamethylene diisocyanate.
- One or more types may be selected and used. it can.
- Specific examples of the chemical treatment include gas treatment using gas such as ozone, halogen gas, chlorine dioxide, or sodium hypochlorite, alkali metal hydroxide, alkaline earth metal hydroxide, metal Examples include chemical treatment using an oxidizing agent or reducing agent such as sodium, sulfuric acid, or nitric acid, or an acid / base.
- an oxidizing agent, a reducing agent, or an acid / base is usually used as a solution in which it is dissolved in water, alcohol, liquid ammonia, or the like.
- the treatment chemical is an alkaline metal hydroxide and / or an alkaline earth metal hydroxide
- examples of the alkali metal hydroxide include lithium hydroxide, sodium hydroxide, and hydroxy hydroxide.
- examples of the alkaline earth metal hydroxide include magnesium hydroxide, calcium hydroxide, barium hydroxide and the like, and one or more kinds can be selected and used. Of these, sodium hydroxide and potassium hydroxide are preferable, and sodium hydroxide is particularly preferable.
- the alkali metal hydroxide and / or alkaline earth metal hydroxide as a solution thereof, and examples of the solvent of the solution include water and / or an organic solvent.
- the organic solvent include methanol, ethanol, isopropanol and the like.
- the concentration of the solution is 5 to 55 wt%, preferably 10 to 45 wt%, and the temperature of the solution is 0 to 95 ° C, preferably 20 to 90. A temperature range of 30 ° C., more preferably 30 to 80 ° C. is preferred.
- the pretreatment with the alkaline metal hydroxide and / or alkaline earth metal hydroxide solution in the present invention includes the solution in the solution concentration and the solution temperature range, and one side of the polarizing film. Or it can carry out by making both surfaces contact for a predetermined period.
- this contact method For example, methods, such as immersion in the solution of this polarizing film, or contact with this polarizing film by shower, surface flow, etc., can be illustrated. In particular, a method of immersing the polarizing film in a solution is preferable.
- methods such as stirring, convection, and jet can be employed.
- the contact time is not particularly limited, but is preferably in the range of 1 minute to 24 hours, preferably 5 minutes to 10 hours, particularly preferably ⁇ 5 minutes to 5 hours.
- Al-strength metal hydroxide and / or Al-strength earth metal hydroxide solution When the Al-strength metal hydroxide and / or Al-strength earth metal hydroxide solution is brought into contact with the polarizing film, physical stimulation such as ultrasonic irradiation or vibration can be used in combination. .
- Al-strength metal hydroxide and / or al-strength earth metal hydroxide solution has a surface activity such as anionic property and nonionic property for the purpose of improving the wettability between the solution and the polarizing film. An agent or the like may be included.
- the concentration of the solution, the solution temperature, and the contact time at the time of contacting the polarizing film with the alkali metal hydroxide and / or alkaline earth metal hydroxide solution are determined by the optical properties of the polarizing film. It can be carried out by appropriately selecting within a range that does not substantially impair the characteristics.
- the polarizing film is pulled out of the solution, and water and / or as necessary.
- the polarizing film may be washed with an organic solvent such as methanol, ethanol, isopropanol, acetone, methyl ethyl ketone, and dried.
- the corona discharge treatment is a kind of gas discharge, which utilizes a phenomenon in which gas molecules are ionized to show conductivity and the film surface is activated by the ion flow, and is widely used.
- Surface treatment technology The gas to be subjected to the discharge treatment includes air, but may be a gas such as nitrogen, carbon dioxide, or ammonia gas.
- the corona discharge treatment can be achieved, for example, by a method of treating the surface of the polarizing film using a corona that is generated by applying a voltage to the electrode in a known high-frequency generator.
- the corona discharge treatment strength is preferably 1 to 50 OW min / m 2 , more preferably 5 to 400 W ⁇ min / m 2 .
- Examples of the plasma treatment include normal pressure plasma treatment and vacuum plasma treatment (low temperature plasma treatment).
- discharge treatment is performed in a gas atmosphere in which gases such as air, water vapor, argon, nitrogen, helium, carbon dioxide, and carbon monoxide are used alone or mixed.
- the vacuum plasma treatment can be performed under reduced pressure.
- a polarizing film is placed in an internal electrode type discharge treatment apparatus having a counter electrode composed of a drum-like electrode and a plurality of rod-like electrodes.
- 0 Torr preferably 0.0 1 to 1 0 T orr, more preferably, in a processing gas atmosphere of 0.02 to 1 Torr, a high voltage of direct current or alternating current is applied between the electrodes and discharged to generate plasma of the processing gas, and the polarizing film Surface treatment can be performed by exposing the surface of the surface.
- the processing conditions for the vacuum plasma processing depend on the processing apparatus, the type of processing gas, the pressure, the frequency of the power source, etc., but preferable conditions may be selected as appropriate.
- the processing gas for example, argon, nitrogen, helium, carbon dioxide, carbon monoxide, air, water vapor or the like can be used alone or in combination.
- the polarizing film is treated with a silane coupling agent treatment, a sodium hydroxide aqueous solution treatment, an atmospheric pressure or vacuum plasma treatment, a low-pressure discharge treatment, and an urethane system. It is preferable to perform the treatment by one or more methods selected from the group consisting of coating treatment with resin.
- the plastic polarizing lens of the present invention has a lens casting mold 20 to which a polarizing film 12 made of a thermoplastic polyester is fixed. It is obtained by injecting a mixture with an active hydrogen compound and then polymerizing and curing.
- the polarizing film 12 may be previously treated with a silane coupling agent.
- the silane coupling agent is dissolved or dispersed. You may have the process of apply
- the lens casting saddle 20 is generally composed of two molds 2 2 a and 2 2 b held by a gasket 2 2 c.
- Gasket 2 2 c is made of polyvinyl chloride, ethylene monoacetate vinyl copolymer, ethylene ethyl acrylate copolymer, ethylene mono Pyrene copolymers, ethylene, propylene, genco polymers, polyurethane elastomers, fluororubbers, or soft elastic resins blended with polypropylene are used.
- a material that does not swell or elute with respect to the mixture of the specific isocyanate compound and the specific active hydrogen compound used in the present invention is preferred.
- Examples of the material of the molds 2 2 a and 2 2 b include glass and metal, and glass is usually used.
- a mold release agent may be applied to the molds 2 2 a and 2 2 b in advance in order to improve the releasability of the obtained lens.
- a coating liquid for imparting hard coating performance to the lens material may be applied to the mold in advance.
- a polarizing film 12 made of thermoplastic polyester is placed in the space of the lens casting saddle 20 so that the film surface is parallel to the inner surface of the front mold 2 2a facing each other. . Between the polarizing film 12 and the molds 2 2 a and 2 2 b, gaps 2 4 a and 2 4 b are formed, respectively.
- the separation distance a having the narrowest gap between the gaps 2 4 a and 24 b is about 0.2 to 2 Om m.
- two gaps 2 4 a, 2 4 b between the molds 2 2 a, 2 2 b and the polarizing film 12 are respectively A mixture of (A) a specific isocyanate compound and (B) a specific active hydrogen compound is injected by injection means.
- the (A) isocyanate compound used in the present invention includes a compound having an isothiocyanate group, specifically, a polyisocyanate compound, an isocyanate compound having an isothiocyanate group, and a polyisothiocyanate compound.
- a compound having an isothiocyanate group specifically, a polyisocyanate compound, an isocyanate compound having an isothiocyanate group, and a polyisothiocyanate compound.
- polyisocyanate compounds include: Hexamethylene diisocyanate, 2, 2, 4_trimethylhexane diisocyanate, 2, 4, 4_trimethylhexamethylene diisocyanate, lysine diisocyanate methyl ester, lysine triisocyanate, m-key Silylene diisocyanate, H, H, H, ', H' Tetramethylxylylene diisocyanate, bis (isocyanatomethyl) naphthalene, mesitylylene triisocyanate, bis (isocyanatomethyl) sulfide, bis (isocyanine ethyl) ) Sulfide, bis (isocyanatomethyl) disulfide, bis (isocyanatoethyl) disulfide, bis (isocyanatomethylthio) methane, bis (isocyanatoethylthio) methane, bis (isocyanatoethylthio) methane,
- Isophorone diisocyanate bis (isocyanatomethyl) cyclohexane, dicyclohexylmethane diisocyanate, cyclohexane diisocyanate, methylcyclohexane diisocyanate, dicyclohexyldimethylmethane isocyanate, 2, 5_bis (isocyanatomethyl) bicyclo _ [2. 2. 1] _heptane, 2, 6_bis (isocyanatomethyl) bicycl _ [2. 2.
- Aromatic polyisocyanate compounds such as phenolic diisocyanate, tolylene diisocyanate, 4,4-diphenylmethane diisocyanate, diphenylsulfide-1,4-diisocyanate;
- 2,5-diisocyanate thiophene 2,5_bis (isocyanatotomethyl) thiophene, 2,5-diisocyanatotetrahydrothiophene, 2,5_bis (isocyanatomethyl) tetrahydrothiophene, 3 , 4_Bis (isocyanatomethyl) tetrahydrothiophene, 2,5-diisocyane —To 1,4—dithiane, 2,5_bis (isocyanatomethyl) 1,4_dithian, 4,5-diisocyanate 1,3—dithiolane, 4,5_bis (isocyanatomethyl) 1,3— Heterocyclic polyisocyanate compounds such as dithiolane
- Examples of the isocyanate compound having an isothiocyanate group include those obtained by changing a part of the isocyanate group of the polyisocyanate compound exemplified above to an isothiocyanate group. However, it is not limited to these.
- polyisothiocyanate compound examples include:
- Isophorone diisothiocyanate bis (isothiocyanatemethyl) hexane, dicyclohexylmethane diisothiocyanate, cyclohexanediisothiocyanate, methylcyclohexanediisothiocyanate, 2, 5_ Bis (isothiocyanate methyl) bicyclo _ [2. 2. 1] _heptane, 2, 6_bis (isothiocyanate methyl) bicyclo _ [2. 2.
- 2,5-diisothiocyanate tothiophene 2,5_bis (isothiocyanate-tomethyl) thiophene, 2,5-diisothiocyanatetetrahydrothiophene, 2,5_bis (isothiocyanate-methyl) tetrahydrothiophene, 3, 4_ Bis (isothiocyanatemethyl) tetrahydrothiophene, 2,5-diisothiocyanate 1,4-dithiane, 2,5_Bis (isothiocyanatemethyl) 1,1,4-dithiane, 4,5-diisothiosi Sulfur-containing heterocyclic polyisothiocyanate compounds such as cyanate 1,3-dithiolane, 4,5_bis (isothiocyanatemethyl) 1,1,3_ dithiolane, etc.
- halogen-substituted products alkyl-substituted products, alkoxy-substituted products, nitro-substituted products such as chlorine-substituted products and bromine-substituted products of these isocyanate compounds, prepolymer type modified products with polyvalent alcohol, A denatured product, urea modified product, biuret modified product, dimerized or trimerized reaction product, and the like can also be used.
- isocyanate compounds can be used alone or in combination of two or more.
- diisocyanate compounds are preferably used from the standpoint of availability, price, and performance of the resulting resin.
- diisocyanate compounds are preferably used from the standpoint of availability, price, and performance of the resulting resin.
- the (B) active hydrogen compound used in the present invention is one or more active hydrogen compounds selected from a thiol compound having a hydroxy group and a polythiol compound.
- Examples of the thiol compound having a hydroxy group include:
- Heterocyclic polythiol compounds such as 3-dithiane, 2_ (2, 2_bis (mercaptomethylthio) ethyl)-1, 3_diginan
- oligomers of these active hydrogen compounds and halogen-substituted products such as chlorine-substituted products and bromine-substituted products may be used.
- These active hydrogen compounds can be used alone or in admixture of two or more.
- polythiol compounds are preferably used from the standpoint of availability, price, and performance of the resulting resin.
- the (ii) isocyanate compound used in the present invention may be obtained by preliminarily reacting (ii) a part of the active hydrogen compound.
- the (iii) active hydrogen compound used in the present invention may be obtained by preliminarily reacting a part of the (iii) isocyanate compound.
- a resin modifier such as an olefin compound containing an acrylate compound or the like may be added.
- the resin modifier is a compound that adjusts or improves mechanical strength such as physical properties such as refractive index, Abbe number, heat resistance, specific gravity and impact resistance of thiourethane resin.
- hydroxy compound used as the resin modifier examples include, for example,
- Diethylene glycol triethylene glycol, dipropylene glycol, tripropylene glycol, 1,4_butanediol, thiojetanol, Dithiojetanol, glycerin, trimethylolpropane, pentaerythritol, and oligomers of these
- the epoxy compound that can be added as a resin modifier includes, for example, a phenol-based epoxy compound obtained by a condensation reaction of a polyhydric phenol compound such as bisphenol A glycidyl ether and an epihalohydrin compound; water Alcohol-based epoxy compounds obtained by condensation of polyhydric alcohol compounds such as bisphenol A glycidyl ether and epi-halohydrin compounds; 3, 4 _epoxycyclohexylmethyl 1 ', 4' _epoxy cyclohexyl A glycidyl ester-based epoxy compound obtained by condensing a polyvalent organic acid compound such as poxylate with an Epicha hydrin compound;
- Aliphatic polyhydric epoxy compounds such as vinylcyclohexene diepoxide can be mentioned, but are not limited to these exemplified compounds.
- Examples of the episulfide compound that can be added as a resin modifier include:
- organic acids that can be added as resin modifiers and their anhydrides include:
- Vinyl compounds such as styrene, chlorostyrene, methylstyrene, promostyrene, dib-mouth styrene, divinylbenzene, 3,9-divinylspirobi (m_dioxane), etc.
- resin modifiers can be used alone or in combination of two or more.
- the use ratio of (A) isocyanate compound and (B) active hydrogen compound (including a hydroxy compound as a modifier) used in the present invention is usually (NC O + NCS) / (SH + OH)
- the functional group molar ratio is usually in the range of 0.8 to 1.5, and preferably in the range of 0.9 to 1.2.
- the (A) isocyanate compound and the (B) active hydrogen compound used in the present invention are selected in view of availability, price, ease of handling, performance of the resulting resin, and the like.
- Viscosity at the time of injection is (A) Combination of isocyanate compound and (B) Active hydrogen compound. (When using a resin modifier, includes the type and amount of the resin modifier. When using a catalyst, ), But if the viscosity is too high, the glass molds 22a and 22b in the space of the lens casting mold 20 and the polarizing film 12 Narrow voids 24a and 24b This makes it difficult to manufacture a polarizing lens.
- the viscosity at the time of injection is preferably 200 m P a s or less as measured at 20 ° C.
- an even lower viscosity for example 1 O OmP a s or less is more preferable.
- the viscosity of the mixture is measured using a B-type viscometer at a liquid temperature of 20 ° C.
- the refractive index is important, and those having a high refractive index can be suitably used.
- the refractive index measured by e-line usually in the range of 1.57 to 1.70, preferably in the range of 1.59 to 1.70, more preferably in the range of 1.65 to 1.68.
- a combination of (A) an isocyanate compound and (B) an active hydrogen compound (including the type and amount of the resin modifier when a resin modifier is used) is preferable. If the refractive index is too low, it is obvious that there is a film in the polarizing lens and the appearance will be poor.
- the mixture of (A) isocyanate compound and (B) active hydrogen compound used in the present invention is usually the same on both sides of the polarizing film surface, but may be different. Absent.
- UV absorbers such as acids, internal release agents such as acidic phosphate esters, light stabilizers, antioxidants, reaction initiators such as radical reaction initiators, chain extenders, crosslinking agents, anti-coloring agents, oil-soluble Substances such as dyes and fillers may be added.
- an injection solution is prepared by mixing (A) an isocyanate compound and (B) an active hydrogen compound with a reaction catalyst, a release agent, and other additives, the addition of the catalyst, the release agent, and other additives Depending on the solubility in (A) isocyanate compound and (B) active hydrogen compound, whether (A) is added to and dissolved in isocyanate compound in advance, or (B) is added or dissolved in active hydrogen compound. Or (A) Isocyanate compound and (B) Active hydrogen compound Good. Alternatively, after preparing a master solution by dissolving it in a part of the (A) isocyanate compound or (B) active hydrogen compound to be used, this may be added. The order of addition is not limited to these exemplified methods, and is appropriately selected based on operability, safety, convenience, and the like.
- the lens casting mold on which the polarizing film into which the mixture of (A) isocyanate compound and (B) active hydrogen compound is injected is fixed in the oven or in a heatable apparatus such as in water with a predetermined temperature program. Heat and cure for several hours to several tens of hours.
- the polymerization curing temperature cannot be limited because the conditions vary depending on the composition of the mixture, the type of catalyst, the shape of the mold, etc., but it is approximately 1 to 100 hours at a temperature of _50 to 200 ° C. It is done over.
- the plastic polarizing lens of the present invention as shown in FIG. 1 can be obtained by taking it out from the lens casting mold.
- a resin layer 14a, a polarizing film 12 and a resin layer 14b are laminated in this order. With such a configuration, it is possible to prevent the polarizing film 12 from being peeled off from the lens material during the outer periphery polishing process.
- the plastic polarizing lens of the present invention is preferably subjected to annealing treatment by heating the released lens for the purpose of alleviating distortion due to polymerization.
- the annealing temperature is usually in the range of 80 to 150 ° C, preferably in the range of 100 to 130 ° C, more preferably in the range of 110 to 130 ° C.
- the annealing time is usually in the range of 0.5 to 5 hours, preferably in the range of 1 to 4 hours.
- the plastic polarizing lens of the present invention is used with a coating layer on one side or both sides as required.
- the coating layer include a primer layer, a hard coat layer, an antireflection film layer, an antifogging coat layer, an antifouling layer, and a water repellent layer. These coating layers may be used singly or may be used as a plurality of coating layers. When a coating layer is applied to both sides, a similar coating layer or a different coating layer may be applied to each side.
- Each of these coating layers has an ultraviolet absorber for the purpose of protecting the lens and eyes from ultraviolet rays, an infrared absorber for the purpose of protecting the eyes from infrared rays, and a light stabilizer and an antioxidant for the purpose of improving the weather resistance of the lens.
- an ultraviolet absorber for the purpose of protecting the lens and eyes from ultraviolet rays
- an infrared absorber for the purpose of protecting the eyes from infrared rays
- a light stabilizer and an antioxidant for the purpose of improving the weather resistance of the lens.
- dyes and pigments, photochromic dyes, photochromic materials, antistatic agents, and other known additives may be used in combination for the purpose of improving the performance of the lens.
- Various leveling agents may be used to improve coatability.
- the primer layer is generally formed between the polarizing lens substrate (thiourethane resin) and the hard coat layer for the purpose of improving the adhesion of the hard coat layer and the impact resistance of the polarizing lens.
- the primer layer is usually about 0.1 to 1 O ⁇ m.
- the primer layer is formed by, for example, a coating method or a dry method.
- a primer layer is formed by applying the primer composition by a known coating method such as spin coating or dip coating and then solidifying the primer composition.
- the dry method it is formed by a known dry method such as a CVD method or a vacuum deposition method.
- the surface of the lens should be Pretreatment such as alkali treatment, plasma treatment, and ultraviolet treatment may be performed.
- a solidified primer layer is preferably a material having high adhesion to the lens substrate (thiolethane resin).
- thiolethane resin a material having high adhesion to the lens substrate
- urethane resin epoxy resin, polyester resin, melanin resin, polyvinyl
- a primer composition mainly composed of acetal is used.
- the primer composition can be used without a solvent, but an appropriate solvent that does not affect the lens may be used for the purpose of adjusting the viscosity of the composition.
- the hard coat layer is a coating layer for the purpose of imparting functions such as scratch resistance, abrasion resistance, moisture resistance, hot water resistance, heat resistance, and weather resistance to the lens surface. Usually, about 0.3 to 30; U m.
- the hard coat layer is usually formed by applying a hard coat composition by a known coating method such as spin coating or dip coating and then curing.
- a known coating method such as spin coating or dip coating and then curing.
- the curing method include thermal curing, a curing method by irradiation with energy rays such as ultraviolet rays and visible rays, and the like.
- pretreatment such as alkali treatment, plasma treatment, and ultraviolet treatment is performed on the coated surface (lens substrate or primer layer) as necessary for the purpose of improving adhesion. May be.
- the hard coat composition includes a curable organic key compound and S i, AI, S ⁇ , S b, ⁇ a, C e, L a, F e, Z n, W
- a mixture of oxide fine particles (including composite oxide fine particles) such as Zr, In, and Ti is often used.
- amines, amino acids, metal acetylacetonate complexes, organic acid metal salts, perchloric acids, perchloric acid salts, acids, metal chlorides and polyfunctional epoxy compounds are used. May be.
- the hard coat composition can be used without a solvent, but an appropriate solvent that does not affect the lens may be used.
- the antireflection layer is usually formed on the hard coat layer as necessary.
- the antireflection layer includes an inorganic type and an organic type.
- an inorganic type generally, an inorganic oxide such as S i 0 2 or T i 0 2 is used for vacuum deposition, sputtering, By dry methods such as plating, ion beam assist, and CVD. Often formed.
- an organic type in general, it is often formed by a wet method using a composition containing an organic silicon compound and silica-based fine particles having internal cavities.
- the antireflection layer may be a single layer or a multilayer, but when used as a single layer, the refractive index is preferably at least 0.1 lower than the refractive index of the hard coat layer.
- the refractive index is preferably at least 0.1 lower than the refractive index of the hard coat layer.
- a low refractive index film and a high refractive index film are alternately laminated.
- the difference in refractive index between the low refractive index film and the high refractive index film is preferably 0.1 or more.
- the high refractive index film for example, Z n O, T i 0 2, C eO 2, S b 2 0 5, S n 0 2, Z r 0 2, T a 2 O 5 or the like of the film
- a low refractive Examples of the rate film include an S i 0 2 film.
- the film thickness is usually about 50 to 150 nm.
- plastic polarizing lens of the present invention may be subjected to back surface polishing, antistatic treatment, dyeing treatment, dimming treatment and the like, if necessary.
- Such a plastic polarizing lens can be reduced in thickness, and is therefore useful as a polarizing lens for use in glasses, particularly as a vision correction lens.
- the performance test of the polarizing lens was performed by the following method.
- TOPCON auto lens edger model number ALE-1 OO DX was used to hold and hold both sides of the polarized lens to be tested, and it was installed separately while rotating parallel to the polarizing lens surface.
- the ceramic chip was moved to and contacted the side surface of the polarizing lens, and the entire side surface was ground to remove the periphery of the polarizing lens.
- the adhesive property between the polarizing film and the cured lens material is insufficient, the polarizing film is peeled off. That is, paying attention to the peeled state of the laminated part of the polarizing film at the lens edge, It was evaluated according to the criteria.
- the lens In a dark room where other light sources can be ignored, the lens is placed on the polarized lens to be tested at a location of approximately 1 50 cm, directly below a 3 7 watt fluorescent lamp that is lit up. Hold the side with your hands so that there are no optical obstacles near both sides of the lens, and hold it horizontally with the concave surface facing the fluorescent lamp, and as close to the surface as possible, approximately 3 O cm above the lens. Look at the concave surface of the lens and observe the fluorescent lamp image. Also, the image is observed while slightly changing the angle of the lens from the horizontal direction. Two types of clear and large images are commonly observed, but if the polarizing film is conspicuous, other blurred images can be confirmed. The difficulty of seeing the polarizing film in the lens was judged from the following criteria.
- the polarizing lens to be tested was immersed in a constant temperature water bath set at 60 ° C, and the changes were observed by pulling up three types of lenses every predetermined time. If the water resistance is insufficient, whitening or decoloration-like deterioration occurs from the lens edge to the center, and the immersion time (data obtained after 4 hours, 3 days, and 7 days) Therefore, the length of the deteriorated part from the peripheral part toward the central part was measured in millimeters with a caliper.
- the viscosity of the monomer mixture for injection was measured using a B-type viscometer at a liquid temperature of 20 ° C.
- silane coupling agent 3-methacryloxyprovir trimethyoxysilane (Shin-Etsu Chemical Co., Ltd. product name: KBM503) 1 O g dissolved in methanol 10 L just before use, 2.0 g of water In addition, the impregnating solution was prepared by stirring.
- Polyethylene terephthalate polarizing film with protective films on both sides [Mitsui Chemicals Co., Ltd .: "Borasora (registered trademark) ⁇ (thickness: 1 30 microns) was shaped into a 2R curved shape by a hot press method. After the film was cut according to the size of the mold, the protective films on both sides were peeled off, and this was impregnated with the above impregnating solution in the vertical direction, pulled up quickly, and maintained in the vertical direction for 1 minute to allow the liquid to drain.
- a polarizing film was prepared by drying for 10 minutes in a blow drying oven at 50 ° C. This was a vertical mold (glass mold set) for forming a polarizing lens shown in Fig. 2 (front: 2 R, rear: 6 R, Diopter: S—5.00).
- xylylene diisocyanate 50 6 parts by weight, 4,8-dimercaptomethyl-1,1,1—dimercapto-1,6,9_trithiaundecane and 4,7-dimercaptomethyl_1, 1 1-dimercapto 1, 3, 6, 9-trithiaundecane and 5, 7-dimercaptomethyl _ 1, 1 1-dimercapto _3, 6, 9_trithiaundecane 49.
- this monomer mixture is passed through a 3 m filter into the two gaps 24 a and 24 b partitioned by the glass molds 22 a and 22 b and the polarizing film 12 in the lens casting mold. After filtration, it was injected through a tube. Note that the separation distance a of the narrowest gap portion 24 a was about 0.5 mm.
- Place the lens casting mold 20 closed after injection in a hot-air circulating oven increase the temperature from 25 ° C to 120 ° C over 16 hours, and then maintain at 120 ° C for 4 hours. After slow cooling, the lens casting mold was removed from the oven. The lens was released from the lens casting mold and annealed at 130 ° C for 2 hours to obtain a polarizing lens. The results of the performance test of the obtained polarizing lens are shown in Table 1.
- silane coupling agent 3-methacryloxyprovir trimethyoxysilane (Shin-Etsu Chemical Co., Ltd. product name: KBM503) 1 O g dissolved in methanol 10 L just before use, 2.0 g of water In addition, the impregnating solution was prepared by stirring.
- Polyethylene terephthalate polarizing film with protective film on both sides [Mitsui Chemicals Co., Ltd .: “Polaso Ira (registered trademark) 1 Thickness 1 30 microns] was molded into a 2 R curved shape by the hot press method. After cutting according to the size, the protective films on both sides were peeled off, and this was impregnated in the vertical direction with the above impregnating liquid, quickly pulled up, and maintained in the vertical direction for 1 minute to allow the liquid to drain. Make a polarizing film by drying for 10 minutes in an air-drying oven of C. This is a vertical mold (glass mold set) for forming a polarizing lens (front: 2 R, rear
- the glass molds 2 2 a and 2 2 b in the lens casting mold and the two gaps 2 4 a and 2 4 b partitioned by the polarizing film 1 2 The monomer mixture was injected through a tube after filtration through a 3 m filter. Lens injection mold closed after injection is heated from 20 ° C to 130 ° C over 26 hours in a hot air circulating oven, then maintained at 130 ° C for 4 hours, gradually After cooling, the lens casting mold was removed from the oven. The lens was released from the lens casting mold and annealed at 130 ° C. for 2 hours to obtain a polarized lens.
- a polarizing film made of polyethylene terephthalate having a protective film on one side [manufactured by Mitsui Chemicals, Inc .: “Boraso Ira (registered trademark) ⁇ (thickness: 130 ⁇ m)” was formed into a 2 R curved shape by a hot press method. The polarizing film was cut to the size of the mold, and then the protective film was peeled off, and the film was soaked in 20% by weight sodium hydroxide aqueous solution kept at 40 ° C. 30 minutes later, it was pulled up and washed with water.
- Polyethylene terephthalate polarizing film with a protective film on one side [Mitsui Chemicals Co., Ltd .: “Boraso Ira (registered trademark) ⁇ (thickness: 130 mm ) was peeled off and formed into a 2R curved shape by a hot press method.
- the polarizing film was cut according to the size of the mold, and then immersed in a 20 wt% aqueous sodium hydroxide solution kept at 40 ° C. Pulled up after 30 minutes, washed with water, then washed with methanol and air-dried.
- this film was selected by selecting “Strong” output of plasma processing machine (Keyence Co., ST-7200 model) and air A polarizing film was prepared by treating in an atmosphere for about 1 second.
- the polarizing film was sandwiched and placed in a polarizing lens molding mold shown in FIG. 2, and the same operation as in Example 1 was performed to obtain a polarizing lens.
- Polyethylene terephthalate polarizing film with a protective film on one side [Mitsui Chemicals Co., Ltd .: “Boraso Ira (registered trademark) ⁇ (thickness 130 mm) protective film is peeled off, and this is heated by a 2 R film.
- the polarizing film was cut according to the size of the mold, and then immersed in a 20 wt% aqueous sodium hydroxide solution kept at 40 ° C. 30 minutes later Pull it up, wash it with water, then wash it with methanol, let it air dry, and then select the output “strong” of vacuum plasma processing machine (March, PCB type output ⁇ 2 0 0 OW) and vacuum atmosphere
- a polarizing film was prepared by processing for about 300 seconds. This polarizing film was placed in a cage for molding a polarizing lens shown in FIG. 2, and the same operation as in Example 1 was performed to obtain a polarizing lens.
- a polarizing film made of polyethylene terephthalate having a protective film on one side [manufactured by Mitsui Chemicals, Inc .: “Boraso Ira (registered trademark) ⁇ (thickness: 130 ⁇ m)” was formed into a 2 R curved shape by a hot press method. This polarizing film is cut to the size of the mold, and then the protective film is peeled off. Both sides of the polarizing film are treated with a corona discharge treatment machine (Kasuga Denki Co., Ltd.) at 20 OW min / m 2 , with a spacing of 0.5 cm.
- a polarizing film was prepared by performing the scanning process three times under the conditions of A polarizing lens was obtained by sandwiching and placing in a polarizing lens molding mold shown in FIG. 2 and performing the same operation as in Example 1.
- Polyethylene terephthalate polarizing film having a protective film on one side [Mitsui Chemicals Co., Ltd .: “Boraso Ira (registered trademark) ⁇ (thickness 130 ⁇ m) protective film is peeled off, and a urethane resin solution-based coating agent is applied to both sides” This was coated and dried at about 50 to 60 ° C. This was formed into a 2 R curved shape by a hot press method, and this polarizing film was cut according to the size of the mold and polarized.
- a polarizing lens was obtained by performing the same operation as in Example 1 by placing the polarizing film in a cage for molding a polarizing lens shown in FIG.
- Polyethylene terephthalate polarizing film with a protective film on one side [Mitsui Chemicals Co., Ltd .: “Boraso Ira (registered trademark) ⁇ (thickness 1 30 ⁇ m) was shaped into a 2 R curved shape by the hot press method, The polarizing film was cut according to the size of the mold, and then the protective film was peeled off. The polarizing film was placed in a vertical mold for forming a polarizing lens shown in Fig. 2, and the same as in Example 1. Operation was performed to obtain a polarized lens.
- Polyvinyl alcohol (Kuraray Vinylon # 750 (manufactured by Kuraray Co., Ltd.)) was dyed in an aqueous solution of a dichroic dye, stretched in the solution, and then the film was dried at room temperature for a short time, followed by 3 at 40 ° C.
- a polarizing film having a thickness of 40 microns was obtained by heat treatment for 30 minutes.
- the obtained polarizing film was attached to a curved shape of 2R with a heat press, cut according to the shape of the mold, left in a constant temperature and humidity chamber to adjust the humidity, and then adjusted to 60 ° C.
- a vertical mold glass mold set
- Example 2 Thereafter, the same operation as in Example 1 was performed to obtain a polarizing lens.
- the polarizing lens of the present invention is excellent in water resistance, and the film is clearly dissolved in the lens, and the outer periphery polishing process in the subsequent process (the edge of the lens for adjusting to a predetermined shape) It was confirmed that there was no problem of peeling of the polarizing film even in the step of shaving, and that the viscosity at the time of injection was low and the thickness could be reduced.
- the plastic polarizing lens of the present invention is excellent in processing characteristics and is suitable for a polarizing lens for spectacle lenses.
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Description
Claims
Priority Applications (4)
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CN2007800269711A CN101490601B (zh) | 2006-08-10 | 2007-08-01 | 塑料偏光透镜及其制造方法 |
BRPI0715806A BRPI0715806B1 (pt) | 2006-08-10 | 2007-08-01 | lente polarizada plástica e método de produção da mesma |
JP2008528714A JP4843677B2 (ja) | 2006-08-10 | 2007-08-01 | プラスチック偏光レンズ及びその製造方法 |
EP07790316.9A EP2051129B1 (en) | 2006-08-10 | 2007-08-01 | Plastic polarizing lens and method for producing the same |
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US (2) | US7967434B2 (ja) |
EP (1) | EP2051129B1 (ja) |
JP (1) | JP4843677B2 (ja) |
KR (1) | KR101067605B1 (ja) |
CN (1) | CN101490601B (ja) |
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WO (1) | WO2008018168A1 (ja) |
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Also Published As
Publication number | Publication date |
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KR101067605B1 (ko) | 2011-09-27 |
BRPI0715806A2 (pt) | 2014-04-29 |
EP2051129A4 (en) | 2016-02-17 |
CN101490601B (zh) | 2011-11-23 |
US20080036964A1 (en) | 2008-02-14 |
KR20090038483A (ko) | 2009-04-20 |
US7967434B2 (en) | 2011-06-28 |
US20110215493A1 (en) | 2011-09-08 |
US8496859B2 (en) | 2013-07-30 |
EP2051129A1 (en) | 2009-04-22 |
EP2051129B1 (en) | 2018-04-04 |
BRPI0715806B1 (pt) | 2018-09-18 |
JP4843677B2 (ja) | 2011-12-21 |
JPWO2008018168A1 (ja) | 2009-12-24 |
CN101490601A (zh) | 2009-07-22 |
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