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Photochromic resin lens with refractive index of 1.50 and preparation method thereof

A photochromic, resin lens technology, used in optics, optical components, glasses/goggles, etc., can solve problems such as low refractive index, and achieve the effect of low transmittance, clear imaging, and high Abbe number

Active Publication Date: 2017-06-30
JIANGSU CONANT OPTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the color-changing liquid cannot be dissolved in the diethylene glycol bisallyl carbonate monomer, there is no diethylene glycol bisallyl carbonate photochromic resin lens with a low refractive index on the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The resin monomer selects 10Kg of diethylene glycol allyl carbonate and its multimer mixture, the initiator is peroxy-2-ethylhexyl tert-butyl carbonate 50g, and the quality of the color-changing liquid is 100g, wherein the photochromic organic substance is 1 g of spiropyrans (Berry Red from Vivimed, UK), and 99 g of methyl (meth)acrylate as the organic solvent. The specific steps of the preparation method are as follows: (1) ingredients: adding the photochromic organic substance into the organic solvent, mixing uniformly under magnetic stirring to form a color-changing liquid; adding the color-changing liquid into the monomer, and adding an initiator after completely dissolving; (2 ) Pouring material: inject the material filtered by 0.1 μm into the glass mold through the pouring device, and seal it with tape; (3) The first heat curing: perform the first heat curing on the material according to the following temperature curve and time, 30~35℃ 1h 35~80℃ 1h 80~95℃ 14h...

Embodiment 2

[0014] The resin monomer selects 10Kg of diethylene glycol allyl carbonate and its multimer mixture, the initiator is 300g of tert-amyl peroxide-2-ethylhexyl carbonate, and the quality of the color-changing liquid is 400g, wherein the photochromic organic substance is 9 g of spirooxazines (Ocean blue from Vivimed, UK), and 391 g of ethyl (meth)acrylate as the organic solvent. The specific steps of the preparation method are as follows: (1) ingredients: adding the photochromic organic substance into the organic solvent, mixing uniformly under magnetic stirring to form a color-changing liquid; adding the color-changing liquid into the monomer, and adding an initiator after completely dissolving; (2 ) Pouring material: inject the material filtered by 0.1 μm into the glass mold through the pouring device, and seal it with tape; (3) The first heat curing: perform the first heat curing on the material according to the following temperature curve and time, 30~35℃ 1h 35~80℃ 1h 80~...

Embodiment 3

[0016] The resin monomer is 10Kg of diethylene glycol allyl carbonate and its multimer mixture, and the initiator is 150g of 1,1-bis(tert-butyl peroxide)-3,3,5-trimethylcyclohexane, and the color changes The mass of the liquid is 200g, wherein the photochromic organic substance is 5g of spiropyrans (Flame from Vivimed, UK), and the organic solvent is 195g of hydroxyethyl (meth)acrylate. The specific steps of the preparation method are as follows: (1) ingredients: adding the photochromic organic substance into the organic solvent, mixing uniformly under magnetic stirring to form a color-changing liquid; adding the color-changing liquid into the monomer, and adding an initiator after completely dissolving; (2 ) Pouring material: inject the material filtered by 0.1 μm into the glass mold through the pouring device, and seal it with tape; (3) The first heat curing: perform the first heat curing on the material according to the following temperature curve and time, 30~35℃ 1h 35~8...

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PUM

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Abstract

The invention discloses a photochromic resin lens with refractive index of 1.50. The photochromic resin lens with refractive index of 1.50 comprises the following materials: a resin monomer, an initiator and color changing liquid based on the ratio of 100:(0.5-3.0):(1.0-4.0); the resin monomer is a mixture of diglycol allyl carbonate and a polymer of diglycol allyl carbonate; the initiator is one or the mixture of peroxide-2-ethylhexyl tert-butyl carbonate, peroxide-2-ethylhexyl tert-amyl carbonate and 1,1-bi(tert-butyl peroxide)-3,3,5-trimethyl-cyclohexane; the color changing liquid is a photochromic organic material dissolved with an organic solvent. The preparation method comprises the following steps: (1) weighting the resin monomer, the initiator and the color changing liquid based on the ratio, and uniformly mixing; (2) casting; (3) thermally curing for the first time; (4) opening a die, turning the edge, and washing; (5) thermally curing for the second time for 2 hours at the temperature of 110 DEG C; (6) checking and warehousing. The prepared photochromic resin lens with refractive index of 1.50 is high in abbe number, clear in imaging, and suitable for a customer wearing; the visible light transmittance after the color changing is equal to or less than 30%.

Description

technical field [0001] The invention relates to the technical field of photochromic resin lenses, in particular to a photochromic resin lens with a refractive index of 1.50 and a preparation method thereof. Background technique [0002] The ultraviolet region accounts for 7% of the total solar radiation energy. Excessive ultraviolet rays will cause photochemical reactions, especially harmful to the human skin, eyes and immune system, and need to be protected. Therefore, those who engage in outdoor activities should avoid prolonged exposure to sunlight. Under the sun. Eyes are the most sensitive part to ultraviolet rays. Long-term and repeated exposure to ultraviolet rays can cause acute conjunctivitis and retinal diseases. Those engaged in outdoor activities should wear color-changing sunglasses that can shield ultraviolet rays. Ultraviolet radiation is also one of the important factors of senile cataract. [0003] At present, there are two technologies for manufacturing p...

Claims

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Application Information

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IPC IPC(8): C08F118/00C08F2/44G02C7/02
CPCC08F2/44C08F118/00G02C7/022G02C7/024
Inventor 王传宝严清波黄添鸟黄健储林兴黄景润
Owner JIANGSU CONANT OPTICS
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