Monomer composition for manufacturing chameleon glass blocks and method for preparing chameleon glass blocks

A technology of monomer composition and color-changing eyes, which is applied in the direction of instruments, optics, optical components, etc., can solve the problems of poor color-changing performance, and achieve the effect of easy control of the process, high refractive index, and vision correction

Inactive Publication Date: 2010-09-22
SHANGHAI WEIXING OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are two technologies for manufacturing resin photochromic eyeglasses, one is surface coating technology, which can realize photochromic function on the surface of various lenses (high, medium and low refractive index); the other is the incorporation of The formula is to mix photochromic dyes and lens monomers together, and heat and cure them to make lenses with photochromic function. At present, most of them are medium refractive index lenses, accounting for the vast majority of the sales market; high refractive index resin photochromic lenses are due to Poor discoloration performance and not put into the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Recipe (weight):

[0037] (Meth)acrylic resin: Tetrabromobisphenol A dimethacrylate 400g

[0038] Vinyl monomer: divinylbenzene 250g

[0039] Vinyl monomer: methyl styrene 150g

[0040] Cross-linking agent: polyethylene glycol di(meth)acrylate 200 grams

[0041] Chromatic dye: Spiral naphthopyran 0.4g, ROBINSON UK

[0042] Company's CHARCOAL GRAY

[0043] Chromatic dye: Spiral naphthoxazine 0.1g

[0044] SEA GREEN by ROBINSON, UK

[0045] UV absorber 2-(2'-hydroxy-3',5'-di-t-pentylphenyl)benzotriazole 0.1 g

[0046] Antioxidant: β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate 2 g

[0047] Antioxidant: 2,6-di-tert-butyl-4-methylphenol 2 grams

[0048] Light stabilizer: bis(2,2',6,6'-tetramethylpiperidine) sebacate 4 grams

[0049] Polymerization Additive: Dodecyl Mercaptan 4g

[0050] Polymerization initiator: azobisisobutyronitrile 0.5 g

[0051] Polymerization initiator: azobisisoheptyl cyanide 1.5 g

[0052] Preparation method: After the above c...

Embodiment 2

[0061] Recipe (weight):

[0062] Tetrabromobisphenol A dimethacrylate 500g

[0063] Pentacyclopentadecane di(meth)acrylate 200g

[0064] 150g divinylbenzene

[0065] Methyl styrene 50 g

[0066] Ethoxylated bisphenol A diacrylate 100g

[0067] Color-changing dye 1 0.25 g (CHARCOAL GRAY of ROBINSON, UK)

[0068] Color-changing dye 2 0.08 g (SEA GREEN, ROBINSON, UK)

[0069] Color-changing dye 3 0.2 g (RUBYRED, ROBINSON, UK)

[0070] 2-(2'-Hydroxy-3',5'-di-t-pentylphenyl)benzotriazole 0.1 g

[0071] Octadecyl β(3,5-Di-tert-butyl-4-hydroxyphenyl)propionate 2g

[0072] 2,6-Di-tert-butyl-4-methylphenol 2 grams

[0073] Bis(2,2′,6,6′-tetramethylpiperidine) sebacate 4 g

[0074] Methyl bromide 2 g

[0075] Azobisisobutyronitrile 0.5 g

[0076] Azobisisoheptylcyanide 1.5g

[0077] Preparation method: After the above composition is fully stirred and mixed evenly, it is poured into a pre-prepared glass mold while filtering through a 0.5 micron filter, and the cast mold is pu...

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Abstract

The invention provides a monomer composition for manufacturing chameleon glass blocks and a method for preparing chameleon glass blocks. The composition comprises the following components in percentage by weight: 1, a monomer mixture: 40 to 70 percent of (methyl) acrylic resin, 20 to 40 percent of ethenyl monomer and 10 to 20 percent of crosslinker; and 2, auxiliary material and assistant for 1,000 grams of monomer mixture: 0.1 to 1 gram of chromotropic dye, 0.05 to 0.2 gram of ultraviolet absorber, 2 to 6 grams of antioxidant, 2 to 6 grams of stabilizer, 1 to 5 grams of polymerization additive and 0.8 to 5 grams of polymerization initiator. The reflection index of the obtained chameleon glass blocks is 1.60 to 1.63 and the transmittance after color change is 20 percent. Therefore, the effect that one pair of glasses can be used for multiple purposes is achieved.

Description

technical field [0001] The invention relates to a composition for manufacturing resin spectacle lenses and a preparation method for photochromic spectacle lenses, in particular to a composition for manufacturing high refractive index resin photochromic spectacle lenses. Background technique [0002] At present, there are two technologies for manufacturing resin photochromic eyeglasses, one is surface coating technology, which can realize photochromic function on the surface of various lenses (high, medium and low refractive index); the other is the incorporation of The formula is to mix photochromic dyes and lens monomers together, and heat and cure them to make lenses with photochromic function. At present, most of them are medium refractive index lenses, accounting for the vast majority of the sales market; high refractive index resin photochromic lenses are due to Poor discoloration performance has not been put into the market. Contents of the invention [0003] The te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08K5/00C08K5/1545C08K5/357C08K5/3475C08K5/103C08K5/3435C08K5/13G02B1/04
Inventor 陈国贵林晓华徐云
Owner SHANGHAI WEIXING OPTICAL
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