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A photochromic resin lens with a refractive index of 1.50 and its preparation method

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

Active Publication Date: 2021-10-26
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 a refractive index of 1.50, which comprises the following substances, resin monomer: initiator: discoloration liquid = 100: 0.5~3.0: 1.0~4.0, and the resin monomer is diethylene glycol carbonate Mixture of propyl esters and their polymers, the initiators are tert-butyl peroxy-2-ethylhexyl carbonate, tert-amyl peroxy-2-ethylhexyl carbonate and 1,1-bis(tert-butyl peroxy )‑3,3,5‑trimethylcyclohexane or a mixture of one or more, and the color-changing liquid is a photochromic organic substance dissolved in an organic solvent. The preparation method is as follows: (1) Weigh the resin monomer, initiator and color-changing liquid in proportion, and mix them evenly; (2) Pouring material: (3) The first thermal curing: (4) Open the mold, car side, and clean; (5) The second heat curing: the temperature is 110° C., and the time is 2 hours for the second heat curing; (6) Inspection and storage. The color-changing resin lens with a refractive index of 1.50 prepared by the invention has a high Abbe number, clear imaging, and is more suitable for consumers to wear, and the visible light transmittance after the color change is lower 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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Patent Type & Authority Patents(China)
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