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Ultrahigh-toughness anti-blue light resin lens and preparation method thereof

A technology of resin lenses and modifiers, applied in the field of lenses, can solve the problem of not being able to filter blue light

Active Publication Date: 2018-05-29
SHANDONG EFIRM BIOCHEMISTRY & ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For us normal people, blocking blue light exposure for a long time is the most effective way to reduce damage, and using anti-blue light glasses can effectively solve this problem. Ordinary anti-radiation glasses can only filter ultraviolet rays and certain electromagnetic radiation, but not blue light

Method used

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  • Ultrahigh-toughness anti-blue light resin lens and preparation method thereof

Examples

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preparation example Construction

[0029] The raw materials for the preparation of resin lenses provided by the present invention include polyisocyanate; the polyisocyanate is preferably selected from 4,4-dicyclohexylmethane diisocyanate, isophorone diisocyanate, toluene diisocyanate, norbornane diisocyanate, hexaethylene diisocyanate, One or more of methyl diisocyanate and m-xylylene diisocyanate, more preferably selected from isophorone diisocyanate, hexamethylene diisocyanate, norbornane diisocyanate and m-xylylene diisocyanate One or more of isocyanates.

[0030] The raw materials for the resin lens provided by the invention include polythiol compounds. The polythiol compound is preferably selected from pentaerythritol tetrakis (3-mercaptopropionate), 2,3-di(2-mercaptoethylthio)-3-propane-1-thiol, thiodiglycol One or more of alcohol and thiodiglycol.

[0031] The raw materials for the resin lens provided by the invention include carboxylic acid compounds. The carboxylic acid compound is selected from one...

Embodiment 1

[0050] The consumption of raw material is as follows in the present embodiment:

[0051] Component A: Isophorone Diisocyanate (95g), Hexamethylene Diisocyanate (40g)

[0052] Component B: 2,3-bis(2-mercaptoethylthio)-3-propane-1-thiol (10 g)

[0053] Component C: Succinic acid (5g)

[0054] Component D: Tetrabromodiphenol-A (120g)

[0055] Modifier: methyl 3-[3-tert-butyl-4-hydroxy-5-(5-chloro-2H-benzotriazol-2-yl)phenyl]propionate (0.5g)

[0056] Release agent: DDP-8 (0.2g)

[0057] Catalyst: dibutyltin dichloride (0.2g)

[0058] specific steps

[0059] Weigh components A, C and catalyst in proportion, then mix them, stir at 15-20°C for 40-60 minutes, add a certain amount of modifier and release agent, and vacuum defoam for 30-40 minutes, the temperature 20-30°C; add components B and D, temperature 15-20°C, stir evenly for 40-60 minutes for vacuum defoaming, stop stirring, and vacuum defoam for 20 minutes. Dry nitrogen and pressurize, inject the mixed monomer into the ...

Embodiment 2

[0066] Component A: Hexamethylene diisocyanate (80g), norbornane diisocyanate (45g)

[0067] Component B: Pentaerythritol tetrakis(3-mercaptopropionate) (10g)

[0068] Component C: malonic acid (10g)

[0069] Component D: Tetrabromodiphenol-A (100g)

[0070] Modifier: 3-[3-(benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl]propionic acid (0.5g)

[0071] Release agent: DDP-2 (0.2g)

[0072] Catalyst: Trimethyltin Chloride (0.2g)

[0073] specific steps

[0074] Weigh components A, C and catalyst in proportion, then mix them, stir at 15-20°C for 40-60 minutes, add a certain amount of modifier and release agent, and vacuum defoam for 30-40 minutes, the temperature 20-30°C; add components B and D, temperature 15-20°C, stir evenly for 40-60 minutes for vacuum defoaming, stop stirring, and vacuum defoam for 20 minutes. Dry nitrogen and pressurize, inject the mixed monomer into the prepared mold through the filter membrane, after the pouring is completed, put the mold into the ov...

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Abstract

The invention provides an ultrahigh-toughness anti-blue light resin lens and a preparation method thereof. The ultrahigh-toughness anti-blue light resin lens is prepared from polyisocyanate, a polythiol compound, a carboxylic compound, a polyphenol compound, a modifying agent, a demoulding agent and a tin catalyst as raw materials according to a mass ratio of (30-60):(2-10):(2-10):(30-60):(0.1-1):(0.01-0.1):(0.01-0.1, wherein the carboxylic compound is one or more of C2-C15 aliphatic dicarboxylic compounds, C3-C20 aliphatic tricarboxylic compounds and C6-C30 aromatic carboxylic compounds; themodifying agent is selected from 3-[3-tert-butyl-4-hydroxy-5-(5-chloro-2H-benzotriazol-2-yl)phenyl] methyl propionate and / or 3-[3-(benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl]propionic acid. The ultrahigh-toughness anti-blue light resin lens has relatively high impact toughness, anti-blue light performance and ultraviolet resistance.

Description

technical field [0001] The invention relates to the field of lens technology, in particular to an ultra-high toughness anti-blue light resin lens and a preparation method thereof. Background technique [0002] Blue light is an important part of visible light. There is no separate white light in nature itself. When blue light is mixed with green light and yellow light, it presents white light. Green light and yellow light have less energy and are less irritating to the eyes. Blue light has a short wavelength and high energy, and can directly penetrate the crystal and reach the retina of the fundus. [0003] For us normal people, blocking blue light exposure for a long time is the most effective way to reduce damage, and using anti-blue light glasses can effectively solve this problem. Ordinary anti-radiation glasses can only filter ultraviolet rays and certain electromagnetic radiation, but not blue light . Special anti-blue light glasses can not only effectively isolate ul...

Claims

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Application Information

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IPC IPC(8): C08G18/34C08G18/38C08G18/32C08G18/28G02C7/10
CPCC08G18/2885C08G18/3215C08G18/341C08G18/381C08G18/3851C08G18/3855C08G18/3868G02C7/104
Inventor 刘文瑞王越先张超梁万根魏政
Owner SHANDONG EFIRM BIOCHEMISTRY & ENVIRONMENTAL PROTECTION CO LTD
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