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Photocurable photochromic material and preparation method thereof

A technology of photochromic materials and photochromic dyes, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, optics, etc., can solve problems such as easy cracks, poor impact resistance, narrow application range, etc., to improve impact resistance , Improve weather resistance and avoid cracking

Active Publication Date: 2016-06-15
JIANGSU MAAT OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] First, photocurable photochromic materials have poor impact resistance and are prone to fragmentation during use;
[0006] Second, light-curing photochromic materials have poor weather resistance, and cracks are prone to appear in the process of drastic changes in cold and heat;
[0007] Third, light-curing photochromic materials generally adopt the method of thermal curing, and the production cycle of thermal induction is long, often taking about 20 hours
[0008] Fourth, photocurable photochromic materials are limited by color-changing molecules, and their application range is narrow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A photocurable photochromic material, the components it contains and the weight percentage of each component are as follows:

[0028] Bisphenol A dimethacrylate: 30%;

[0029] Polyethylene glycol diacrylate: 55%;

[0030] Multifunctional acrylate monomer: 10%;

[0031] Photochromic dye: 1%;

[0032] The rest are modified additives, and the modified additives include photoinitiators, ultraviolet absorbers, and antioxidants; the addition of the antioxidant is 1%, the addition of the ultraviolet absorbers is 2%, and the photoinitiator The additive amount is 1%.

[0033] The photochromic dyes may be spiropyran-based or fulgid-based or fulgidimide-based or azobenzene-based or viologen-based or spiro-oxazine-based or pyranyl-based organic compounds.

[0034] The bisphenol A dimethacrylate is an ethoxylated bisphenol A dimethacrylate containing 2 to 20 repeating units of ethoxy groups.

[0035] The polyethylene glycol diacrylate is polyethylene glycol diacrylate containin...

Embodiment 2

[0041] A photocurable photochromic material, the components it contains and the weight percentage of each component are as follows:

[0042] Bisphenol A dimethacrylate: 70%;

[0043] Polyethylene glycol diacrylate: 10%;

[0044] Multifunctional acrylate monomer: 10%;

[0045] Photochromic dye: 1%;

[0046] The rest are modified additives, totaling 100%.

[0047] The bisphenol A dimethacrylate is a propoxylated bisphenol A dimethacrylate containing 2 to 20 repeating units of propoxy groups.

[0048] The polyethylene glycol diacrylate is polyethylene glycol diacrylate containing 2 to 20 repeating units of propoxy groups.

[0049] The multifunctional acrylate monomer is at least one of dipentaerythritol hexaacrylate, dipentaerythritol hydroxypentaacrylate, and pentaerythritol tetraacrylate.

[0050] Described modification additive comprises photoinitiator, stabilizer, ultraviolet absorber, antioxidant, chain transfer agent, IR absorber, defoamer, antistatic agent, release ag...

Embodiment 3

[0055] A photocurable photochromic material, the components it contains and the weight percentage of each component are as follows:

[0056] Bisphenol A dimethacrylate: 40%;

[0057] Polyethylene glycol diacrylate: 30%;

[0058] Multifunctional acrylate monomer: 20%;

[0059] Photochromic dye: 3%;

[0060] The rest are modified additives, totaling 100%.

[0061] The photochromic dye is an organic compound based on spiropyran, or based on fulgidine, or based on fulgimide, or based on azobenzene, or based on viologen, or based on spiro-oxazine, or based on pyranyl.

[0062] The bisphenol A dimethacrylate is an alkoxylated bisphenol A dimethacrylate containing 2 to 20 repeating units of epoxy groups and propoxy groups, glycerinated bisphenol A dimethacrylate At least one of bisphenol A glyceryl (1-glycerol / phenol) dimethacrylate.

[0063] The polyethylene glycol diacrylate is polyethylene glycol diacrylate containing 2 to 20 repeating units of ethoxy groups or polyethylene g...

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PUM

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Abstract

The invention discloses a photocurable photochromic material and a preparation method thereof. The photocurable photochromic material is composed of 30%-70% of bisphenol A dimethacrylate, 10%-60% of poly(ethylene glycol) diacrylate, 10%-30% of polyfunctional acrylate monomer and the balance modifying additives, wherein the sum of weight percentages is 100%. The photocurable photochromic material and the preparation method thereof have the advantages that lens production time is shortened from 20 hours to 15 minutes, impact resistance of lenses is improved to prevent breakage in use, and weather resistance of the lenses can be improved as well to avoid cracks in a fierce cold-hot change process.

Description

technical field [0001] The invention relates to a photocurable photochromic material and a preparation method thereof. Background technique [0002] At present, the photochromic lens itself is a high-tech product integrating multiple functions. It can not only be used as dual-purpose glasses for vision correction and sunshade, but also can be used as protective glasses, fashion glasses, special glasses for car driving, etc. [0003] Photochromic lenses, in the case of sunlight, are black sunglasses that can replace sunglasses. The thick black lenses can block the dazzling light, prevent direct sunlight, and protect the eyes; in rooms with soft light Here, the photochromic lenses become transparent and colorless like ordinary lenses, and play a good role as a bridge in the transition between weak light and strong light. Photochromic lenses can not only darken and brighten with the intensity of light, but also absorb ultraviolet rays that are harmful to human eyes. More tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K9/02C08F222/10G02C7/10
CPCG02C7/102C09K9/02C08F222/1006C09K2211/14C08F222/1025C08F222/1063C08F222/103
Inventor 李军杜鹏
Owner JIANGSU MAAT OPTICAL CO LTD
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