WO2021169033A1 - 折射率1.50的光致变色树脂镜片及其制备方法 - Google Patents
折射率1.50的光致变色树脂镜片及其制备方法 Download PDFInfo
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- WO2021169033A1 WO2021169033A1 PCT/CN2020/088779 CN2020088779W WO2021169033A1 WO 2021169033 A1 WO2021169033 A1 WO 2021169033A1 CN 2020088779 W CN2020088779 W CN 2020088779W WO 2021169033 A1 WO2021169033 A1 WO 2021169033A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/102—Photochromic filters
Definitions
- the invention belongs to the field of resin lenses, and more specifically, relates to a photochromic resin lens with a refractive index of 1.50 and a preparation method thereof.
- Photochromic resin lenses are also called "photosensitive lenses". According to the principle of the reversible reaction between light and color, the lens can be quickly darkened under the irradiation of light and ultraviolet rays, blocking strong light and absorbing ultraviolet rays, and has a neutral absorption to visible light; returning to the dark place, it can quickly restore the colorless and transparent state, ensuring the lens Light transmittance. Therefore, the color-changing lens is suitable for both indoor and outdoor use to prevent the sun, ultraviolet light, and glare from damaging the eyes.
- the chromic dye and the lens monomer are mixed together, and then heated and cured to form a lens with photochromic function.
- they are basically resin lenses with a refractive index of 1.56, which account for most of the sales market.
- the main raw material of the resin lens with a refractive index of 1.56 is polyfunctional acrylate plus styrene that dissolves the color changing powder.
- the cured lens has a refractive index of about 1.545 and an Abbe number of about 41.
- the other raw material is bisphenol A type acrylate, which is a low-toxic chemical.
- the purpose of the present invention is to overcome the above shortcomings, provide a photochromic resin lens with a refractive index of 1.50, high Abbe number, clear imaging, good color change effect and safer and more environmentally-friendly wearing, and a preparation method thereof.
- the present invention provides a photochromic resin lens with a refractive index of 1.50, comprising resin monomers, photochromic organic substances, initiators, antioxidants and light stabilizers in a mass ratio of 100:0.01 ⁇ 0.1 :1 ⁇ 10:0.1 ⁇ 0.9:0.1 ⁇ 0.9; among them, the resin monomer is a mixture of monofunctional acrylate, difunctional acrylate and tetrafunctional acrylate, and the mass ratio is 10 ⁇ 80:10 ⁇ 50:10 ⁇ 50.
- the resin monomer, photochromic organic substance, initiator, antioxidant and light stabilizer contained in the photochromic resin lens with a refractive index of 1.50 of the present invention preferably have a mass ratio of 100:0.01 ⁇ 0.08:1 ⁇ 5: 0.1-0.5: 0.1-0.5, wherein the resin monomer is a mixture of monofunctional acrylate, bifunctional acrylate, and tetrafunctional acrylate, and the mass ratio is preferably 30-60:20-40:20-40.
- the refractive index N d of the monofunctional acrylate of the present invention is less than or equal to 1.42, and the refractive index N d of the bifunctional acrylate and the tetrafunctional acrylate is less than or equal to 1.48.
- the above-mentioned monofunctional acrylate is one or more of methyl methacrylate, vinyl acetate, methyl laurate, and isooctyl acrylate.
- bifunctional acrylates are polyethylene glycol (meth) diacrylate, tripropylene glycol diacrylate, diethylene glycol diacrylate, polypentylene glycol (meth) diacrylate, neopentyl glycol diacrylate One or more of esters and 1,9-nonanediol diacrylate.
- the above-mentioned tetrafunctional acrylate is one of di(trimethylolpropane) tetraacrylate, pentaerythritol tetraacrylate, ditrimethylolpropane tetraacrylate, ethoxylated pentaerythritol tetraacrylate, and dipentaerythritol tetraacrylate pentaacrylate.
- di(trimethylolpropane) tetraacrylate pentaerythritol tetraacrylate
- ditrimethylolpropane tetraacrylate ditrimethylolpropane tetraacrylate
- ethoxylated pentaerythritol tetraacrylate ethoxylated pentaerythritol tetraacrylate
- dipentaerythritol tetraacrylate pentaacrylate dipentaerythritol tetraacrylate
- the aforementioned photochromic organic substance is one or two of spiropyrans and spirooxazines.
- the above-mentioned initiator is an azo initiator, preferably azobisisobutyronitrile or azobisisoheptonitrile.
- antioxidants mentioned above are N,N'-bis[ ⁇ -(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine, N,N'-bis-(3-(3,5- Di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylene diamine, ⁇ -(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, ⁇ -(3, One of 5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate and 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid Or several; light stabilizers are bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, N,N'-bis-(2,2,6,6-tetra Methyl-4-piperidinyl)-1,6-
- the method for preparing the above-mentioned photochromic resin lens with a refractive index of 1.50 is characterized in that it comprises the following steps:
- step (1) Put the uniformly mixed material in step (1) into the glass mold through a 1 ⁇ m filter, and seal it with tape;
- the first heat curing set the initial temperature to 30 ⁇ 35°C, 1h to raise the temperature to 35 ⁇ 40°C, 1h to raise the temperature to 40 ⁇ 45°C, after 6h heat preservation, 6.5h to raise the temperature to 50 ⁇ 55°C, after 1h heat preservation
- the temperature rises to 85 ⁇ 95°C in 2.5h, and after 2h heat preservation, it drops to 70 ⁇ 50°C in 1h; the temperature rises and falls at a constant speed;
- the second thermal curing the temperature is 100°C, and the time is 2h for the second thermal curing.
- the beneficial effects of the present invention are: the present invention can be used as a solvent to dissolve photochromic organic substances and participate in the reaction through specific resin monomers, matching specific refractive index requirements, and preparing refractive index of 1.50.
- the lens does not contain toxic materials, it is safer and more environmentally friendly to wear and produce, and has high Abbe number, clear imaging, high visible light transmittance, and high product qualification rate; the visible light transmittance under ultraviolet light is less than 20%, the color is dark, and the color is changed. The effect is good.
- Bifunctional acrylate polyethylene glycol (meth) diacrylate (Korea Hannon)
- Tetrafunctional acrylate di(trimethylolpropane) tetraacrylate (Korea Hannon)
- Antioxidant N,N’-bis[ ⁇ -(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine (Nanjing Jingtianwei Chemical Co., Ltd. Antioxidant 1024)
- Light stabilizer bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate (Nanjing Jingtianwei Chemical Co., Ltd. Light Stabilizer 770)
- a photochromic resin lens with a refractive index of 1.50 containing resin monomer 10Kg (monofunctional acrylate 3.4kg, bifunctional acrylate 3.3kg, tetrafunctional acrylate 3.3kg), photochromic organic substance 2g, and initiator 100g , Antioxidant 10g and light stabilizer 10g.
- the method for preparing the lens includes the following steps:
- step (1) Put the uniformly mixed material in step (1) into the glass mold through a 1 ⁇ m filter, and seal it with tape;
- the first heat curing set the initial temperature to 30 ⁇ 35°C, 1h to raise the temperature to 35 ⁇ 40°C, 1h to raise the temperature to 40 ⁇ 45°C, after 6h heat preservation, 6.5h to raise the temperature to 50 ⁇ 55°C, after 1h heat preservation
- the temperature rises to 85 ⁇ 95°C in 2.5h, and after 2h heat preservation, it drops to 70 ⁇ 50°C in 1h; the temperature rises and falls at a constant speed;
- the second thermal curing the temperature is 100°C, and the time is 2h for the second thermal curing.
- Monofunctional acrylate vinyl acetate (Shanghai Huzhen Industrial Co., Ltd.)
- Bifunctional acrylate Tripropylene glycol diacrylate (Taiwan Changxing)
- Tetrafunctional acrylate pentaerythritol tetraacrylate (Taiwan Changxing)
- Antioxidant N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylene diamine (Nanjing Jingtianwei Chemical Co., Ltd. Antioxidant 1098)
- Light stabilizer poly ⁇ [(6-1,1,3,3,-tetramethylbutyl)amino]-S-triol-2,4-diyl ⁇ (Nanjing Jingtianwei Chemical Co., Ltd. Light Stabilizer Agent 783)
- a photochromic resin lens with a refractive index of 1.50 containing resin monomer 10Kg (monofunctional acrylate 5kg, bifunctional acrylate 2.5kg, tetrafunctional acrylate 2.5kg), photochromic organic substance 5g, initiator 400g, Antioxidant 40g and light stabilizer 30g.
- the method for preparing the lens includes the following steps:
- step (1) Put the uniformly mixed material in step (1) into the glass mold through a 1 ⁇ m filter, and seal it with tape;
- the first heat curing set the initial temperature to 30 ⁇ 35°C, 1h to raise the temperature to 35 ⁇ 40°C, 1h to raise the temperature to 40 ⁇ 45°C, after 6h heat preservation, 6.5h to raise the temperature to 50 ⁇ 55°C, after 1h heat preservation
- the temperature rises to 85 ⁇ 95°C in 2.5h, and after 2h heat preservation, it drops to 70 ⁇ 50°C in 1h; the temperature rises and falls at a constant speed;
- the second thermal curing the temperature is 100°C, and the time is 2h for the second thermal curing;
- Bifunctional acrylate Diethylene glycol diacrylate (Korea Hannon)
- Tetrafunctional acrylate ditrimethylolpropane tetraacrylate (Taiwan Changxing)
- Antioxidant ⁇ -(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate (Jiangxi Lote Chemical Co., Ltd. Antioxidant 1076)
- Light stabilizer Bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate (Light stabilizer 770 of Jiangxi Lote Chemical Co., Ltd.)
- a photochromic resin lens with a refractive index of 1.50 containing resin monomer 10Kg (monofunctional acrylate 4kg, bifunctional acrylate 3kg, tetrafunctional acrylate 3kg), photochromic organic substance 10g, initiator 1kg, antioxidant 90g of agent and 90g of light stabilizer.
- the method for preparing the lens includes the following steps:
- step (1) Put the uniformly mixed material in step (1) into the glass mold through a 1 ⁇ m filter, and seal it with tape;
- the first heat curing set the initial temperature to 30 ⁇ 35°C, 1h to raise the temperature to 35 ⁇ 40°C, 1h to raise the temperature to 40 ⁇ 45°C, after 6h heat preservation, 6.5h to raise the temperature to 50 ⁇ 55°C, after 1h heat preservation
- the temperature rises to 85 ⁇ 95°C in 2.5h, and after 2h heat preservation, it drops to 70 ⁇ 50°C in 1h; the temperature rises and falls at a constant speed;
- the second thermal curing the temperature is 100°C, and the time is 2h for the second thermal curing;
- a photochromic resin lens with a refractive index of 1.56 resin monomer 10Kg (styrene 2kg, bisphenol A bifunctional acrylate 2.2kg, non-bisphenol A bifunctional acrylate 2.1kg, trifunctional acrylate 2.7 kg, tetrafunctional acrylate 0.9kg), chain transfer agent bromotrichloromethane 5g, and the rest of the raw material types, amounts and preparation methods are the same as in Example 1.
- a photochromic resin lens comprising 10Kg of resin monomer (5kg of bifunctional acrylate, 5kg of tetrafunctional acrylate), 2g of photochromic organic substance, 100g of initiator, 10g of antioxidant and 10g of light stabilizer.
- the types of raw materials and preparation methods are the same as in Example 1.
- a photochromic resin lens comprising resin monomer 10Kg (monofunctional acrylate 5kg, difunctional acrylate 5kg), photochromic organic substance 2g, initiator 100g, antioxidant 10g and light stabilizer 10g.
- resin monomer 10Kg monomer 10Kg (monofunctional acrylate 5kg, difunctional acrylate 5kg)
- photochromic organic substance 2g photochromic organic substance 2g
- initiator 100g initiator 100g
- antioxidant 10g antioxidant 10g
- light stabilizer 10g The types of raw materials and preparation methods are the same as in Example 1.
- a photochromic resin lens the resin monomer contains resin monomer 10Kg (monofunctional acrylate 3.4kg, bifunctional acrylate 3.3kg, tetrafunctional acrylate 3.3kg), photochromic organic substance 2g, and initiator 100g , Antioxidant 10g and light stabilizer 10g, the monofunctional acrylate is o-phenylphenoxyethyl acrylate (refractive index is 1.528), and the bifunctional acrylate is 3 (ethoxy) bisphenol A diacrylate ( The refractive index is 1.540), the tetrafunctional acrylate is dipentaerythritol hexamethacrylate (refractive index is 1.486), and the preparation method is the same as in Example 1.
- resin monomer 10Kg monomer 3.4kg, bifunctional acrylate 3.3kg, tetrafunctional acrylate 3.3kg
- photochromic organic substance 2g and initiator 100g
- Antioxidant 10g and light stabilizer 10g the monofunctional acrylate is
- a photochromic resin lens containing resin monomer 10Kg (monofunctional acrylate 3.4kg, bifunctional acrylate 3.3kg, tetrafunctional acrylate 3.3kg), photochromic organic substance 15g, initiator 1.5kg, antioxidant Agent 100g and light stabilizer 100g.
- resin monomer 10Kg monomer 10Kg (monofunctional acrylate 3.4kg, bifunctional acrylate 3.3kg, tetrafunctional acrylate 3.3kg)
- photochromic organic substance 15g containing photochromic organic substance 15g, initiator 1.5kg, antioxidant Agent 100g and light stabilizer 100g.
- a photochromic resin lens The type and amount of raw materials are the same as in Example 1.
- the preparation method includes the following steps:
- step (1) Put the uniformly mixed material in step (1) into the glass mold through a 1 ⁇ m filter, and seal it with tape;
- the first heat curing set the initial temperature to 30 ⁇ 35°C, 1h heat up to 40 ⁇ 45°C, 1h heat up to 50 ⁇ 55°C, after 6h heat preservation, 6.5h heat up to 60 ⁇ 65°C, keep heat for 1h
- the second thermal curing the temperature is 100°C, and the time is 2h for the second thermal curing.
- Table 1 shows the performance comparison of the lenses described in the above embodiments and the comparative examples.
- the measuring equipment of refractive index and Abbe number is Abbe refractometer, the measuring equipment of visible light transmittance is TM-3 spectrum tester, and the hardness measuring equipment is Barcol hardness tester.
- the qualified lens in the table only means that the lens is not broken when the mold is opened. , And there is no point, injury, face shape, garbage, hair, cracked edge problems.
- a refractive index of 1.56 refers to a lens with a refractive index ranging from 1.545 to 1.550, and a refractive index of 1.50 refers to a lens with a refractive index of 1.50 ⁇ 0.005; Abbe coefficients within the range of 58 plus or minus 5% are regarded as Abbe coefficients. 58.
- the refractive index of the lens prepared by the embodiment of the present invention is 1.50, the Abbe number is high, the visible light transmittance is high, and the visible light transmittance under ultraviolet light irradiation is low, that is, the color change effect is good, and the lens pass rate is high.
- Comparative Example 1 is a lens with a refractive index of 1.56. Its Abbe coefficient is much lower than that of the lens of the present invention, and the hardness is also lower than that of the lens of the present invention; The change of the ratio will greatly reduce the pass rate of the lens; from Comparative Example 6, it can be seen that changing the preparation method will also lead to the decrease of the pass rate of the lens. It can also be seen from the various examples and comparative examples that different raw materials will have an impact. While ensuring the improvement of a certain additive on its own performance, it is also necessary to pay attention to whether it has an impact on other properties.
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Abstract
Description
Claims (10)
- 一种折射率1.50的光致变色树脂镜片,其特征在于包含树脂单体、光致变色有机物质、引发剂、抗氧剂和光稳定剂,其质量比为100:0.01~0.1:1~10:0.1~0.9:0.1~0.9;其中,树脂单体为单官能团丙烯酸酯、双官能丙烯酸酯和四官能团丙烯酸酯的混合物,其质量比为10~80:10~50:10~50。
- 根据权利要求1所述的折射率1.50的光致变色树脂镜片,其特征在于所述镜片包含树脂单体、光致变色有机物质、引发剂、抗氧剂和光稳定剂,其质量比为100:0.01~0.08:1~5:0.1~0.5:0.1~0.5;其中,树脂单体为单官能团丙烯酸酯、双官能丙烯酸酯和四官能团丙烯酸酯的混合物,其质量比为30~60:20~40:20~40。
- 根据权利要求1或2所述的折射率1.50的光致变色树脂镜片,其特征在于所述单官能团丙烯酸酯折射率N d小于等于1.42,双官能团丙烯酸酯和四官能团丙烯酸酯的折射率N d小于等于1.48。
- 根据权利要求3所述的折射率1.50的光致变色树脂镜片,其特征在于所述单官能团丙烯酸酯为甲基丙烯酸甲酯、乙酸乙烯酯、甲基月桂酸酯、丙烯酸异辛酯中的一种或者几种。
- 根据权利要求3所述的折射率1.50的光致变色树脂镜片,其特征在于所述双官能团丙烯酸酯为聚乙二醇(甲基)二丙烯酸酯、三丙二醇二丙烯酸酯、二乙二醇二丙烯酸酯、聚戊二醇(甲基)二丙烯酸酯、新戊二醇二丙烯酸酯、1,9-壬二醇二丙烯酸酯中的一种或者几种。
- 根据权利要求3所述的折射率1.50的光致变色树脂镜片,其特征在于所述四官能丙烯酸酯为二(三羟甲基丙烷)四丙烯酸酯、季戊四醇四丙烯酸酯、双三羟甲基丙烷四丙烯酸酯、乙氧化季戊四醇四丙烯酸酯、五丙烯酸二季戊四醇四丙烯酸酯中的一种或者几种。
- 根据权利要求3所述的折射率1.50的光致变色树脂镜片,其特征在 于所述光致变色有机物质为螺吡喃类和螺噁嗪类中的一种或两种。
- 根据权利要求3所述的折射率1.50的光致变色树脂镜片,其特征在于所述引发剂为偶氮引发剂,优选偶氮二异丁腈或偶氮二异庚腈。
- 根据权利要求3所述的折射率1.50的光致变色树脂镜片,其特征在于所述的抗氧剂为N,N’-双[β-(3,5-二叔丁基-4-羟基苯基)丙酰]肼、N,N’-双-(3-(3,5-二叔丁基-4-羟基苯基)丙酰基)己二胺、β-(3,5-二叔丁基-4-羟基苯基)丙酸正十八碳醇酯、β-(3,5-二叔丁基-4-羟基苯基)丙酸异辛醇酯、1,3,5-三(3,5-二叔丁基-4-羟基苄基)异氰尿酸中的一种或者几种;所述的光稳定剂为双(2,2,6,6-四甲基-4-哌啶基)癸二酸酯、聚{[(6-1,1,3,3,-四甲基丁基)氨基]-S-三嗅-2,4-双基}中的一种或者几种。
- 权利要求3所述的折射率1.50的光致变色树脂镜片的制备方法,其特征在于包括以下步骤:(1)配料:将树脂单体、光致变色有机物质、引发剂、抗氧剂和光稳定剂按比例称量后混合均匀;(2)浇料:把步骤(1)混合均匀的料经过过滤器注入玻璃模具中密封;(3)第一次热固化:设定初始温度30~35℃,1h升温至35~40℃,1h升温至40~45℃,保温6h后,6.5h升温至50~55℃,保温1h后2.5h升温至85~95℃,保温2h后,1h降至70~50℃;(4)开模、车边、清洗;(5)第二次热固化:温度为100℃,时间为2h进行第二次热固化。
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BR112021010078A BR112021010078A2 (pt) | 2020-02-28 | 2020-05-06 | Lente de resina fotocrômica com uma refratividade de 1,50 e método para preparação de uma lente de resina fotocrômica com uma refratividade de 1,50 |
US17/243,339 US20210269569A1 (en) | 2020-02-28 | 2021-04-28 | Photochromic resin lens with refractivity of 1.50 and preparation method thereof |
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CN202010130125.1 | 2020-02-28 | ||
CN202010130125.1A CN111187377B (zh) | 2020-02-28 | 2020-02-28 | 一种折射率1.50的光致变色树脂镜片及其制备方法 |
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US17/243,339 Continuation-In-Part US20210269569A1 (en) | 2020-02-28 | 2021-04-28 | Photochromic resin lens with refractivity of 1.50 and preparation method thereof |
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CN115109186A (zh) * | 2022-08-10 | 2022-09-27 | 山东鲁源化工科技有限公司 | 一种1.60折射率变色单体材料和一种镜片及其制备方法 |
CN116731498A (zh) * | 2023-06-09 | 2023-09-12 | 江苏视科新材料股份有限公司 | 一种防蓝光光致变色树脂镜片 |
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