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Super-high refractive index optical resin composition having high heat deflection temperature and excellent thermal stability, optical lens using same and method for manufacturing the optical lens

An optical lens and monomer composition technology, applied in optics, optical elements, lenses, etc., can solve the problems of easy cracking of multilayer films, deformation of the center of the lens, low refractive index, etc., and achieve good storage stability and good portability. , the effect of high heat distortion temperature

Inactive Publication Date: 2010-03-24
KOC SOLUTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refractive index of this kind of lens is relatively high, reaching 1.655, but there is a problem of lens center deformation when hard coating and multi-layer coating are applied on the lens surface. At the same time, the thermal deformation is serious under high temperature environment, and the multi-layer film is easy to crack.
[0006] Korean Patent Publication No. 10-0704314 In order to increase the heat distortion temperature of the lens, a 3-valent isocyanate compound is mixed with a 2-valent isocyanate compound to produce a polyurethane-based high-refraction plastic optical lens, but this product also has the disadvantage of a low refractive index

Method used

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  • Super-high refractive index optical resin composition having high heat deflection temperature and excellent thermal stability, optical lens using same and method for manufacturing the optical lens
  • Super-high refractive index optical resin composition having high heat deflection temperature and excellent thermal stability, optical lens using same and method for manufacturing the optical lens
  • Super-high refractive index optical resin composition having high heat deflection temperature and excellent thermal stability, optical lens using same and method for manufacturing the optical lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Mix 16.000g of 1,6-hexamethylene diisocyanate, 11.000g of isophorone diisocyanate, 49.000g of 1,2-bis(2-mercaptoethylsulfide) in 24.000g of toluene diisocyanate base)-3-mercaptopropane, here, 1.500g of 2-(2′-hydroxy-5-methylphenyl)-2H-benzotriazole as a UV absorber, 0.100g of Diisopropyl phosphate, 75ppm of organic dye 1-hydroxyl-4-(p-toluidine) anthraquinone (blue) and 40ppm of perionone dye (red) as a complementary color agent, 0.050g of as a polymerization initiator Put dibutyltin dichloride into a mixing tank equipped with a mixer, replace it with nitrogen, remove the air in the mixing tank and stir it under reduced pressure for 2 hours, stop stirring and then defoam under reduced pressure, and inject it into a polyester bonded In a fixed glass mold (diopter -5.00).

[0040] (2) Put the glass mold filled with the mixture into a steel circulation oven, keep it at 35°C for 2 hours, raise the temperature to 40°C for 3 hours, raise the temperature to 120°C for 12 h...

Embodiment 2～16

[0052] According to the method of Example 1, monomer compositions and lenses were produced according to the combinations recorded in Tables 1-2, and the experimental results were recorded in Tables 1-2.

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Abstract

The present invention relates to a urethane-based optical resin composition having a high heat deflection temperature and a method for manufacturing an optical lens using the composition. A monomer composition for a plastic optical lens according to the present invention is lightweight and has excellent plasticity, dyeability, transparency, shock resistance, etc., and especially has a high initial heat deflection temperature, thereby reducing central deformation of the lens and cracking of the multi-film of the lens due to heat. Further, the monomer composition has excellent thermal stabilityto reduce discoloration of the lens due to heat.

Description

technical field [0001] The present invention relates to an optical resin composition for ultra-high refraction polyurethane (polyurethane-based) plastic optical lens (optical lens), an optical lens using the composition and a production method thereof. Background technique [0002] Compared with other plastic lenses, polyurethane-based plastic optical lenses have excellent properties such as transparency, Abbe number, and tensile strength, and are regarded as excellent optical lens materials. However, the thermal deformation temperature of polyurethane-based plastic optical lenses is too low, so when hard coating or multi-coating (anti-reflection coating) is applied to the surface of the lens after casting, the center of the lens will appear. out of shape. In addition, when exposed to heat such as hot and humid areas or saunas, the lens will be severely deformed by heat, and the multilayer film will be severely cracked. This creates a hazy layer on the surface of the lens ...

Claims

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Application Information

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IPC IPC(8): C08G18/72C08G18/73C08G18/74C08K5/521C08K5/17C08K3/10C08L75/04G02B3/00
CPCC08G18/3876C08G18/72C08G18/74C08G18/87C08G2125/00C08G2261/57C08K5/3475C08K5/5333G02B3/00
Inventor 张东奎卢守均金钟孝徐真武
Owner KOC SOLUTION
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