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Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same

A resin composition and spectacle lens technology, applied in glasses/goggles, coatings, instruments, etc., can solve the problems of high thermal expansion coefficient, loss of optical lens, failure to pass the production of spectacle lens specifications for safety, etc., and achieve low thermal expansion coefficient , Good effect of heat resistance

Inactive Publication Date: 2009-07-01
KOC SOLUTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared optical lens is not only in the blank state, but also after multi-layer coating, the impact strength of the lens can also pass the FDA impact resistance test (127cm, 16.3g), but it has not passed the spectacle lens specification for production safety (ANS specification, 127cm, 67g)
In addition, the thermal expansion coefficient of solid resin is high, so in high-temperature production sites, sauna rooms, etc., the multilayer film of the lens is easily deformed or cracked due to heat
Due to the splitting of the multilayer film, the transmittance of the lens is greatly reduced, and as a result, the function as an optical lens is lost

Method used

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  • Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same
  • Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same
  • Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The optical material of the present invention and the preparation method of lens are as follows: trimethylolpropane tris (mercapto propionate) 536g, mix isophorone diisocyanate (IPDI) 358g, 4,4'-methylene bis (cyclohexyl) Diisocyanate) 106g After preparing the monomer composition, 2-(2'-hydroxy-5'-tert-octylphenyl)-2H-benzotriazole (2-(2'-hydroxy- 5′-t-octylphenyl)-2H-benzotriazole) 18g, 0.9g of dibutyl phthalate as a release agent, 1-hydroxyl-4-(p-methylaniline) anthraquinone (1- Hydroxy-4-(p-toluidine)anthraquinone) (blue) 20ppm, alizarone dyes (red) 10ppm, and dibutyltin dilaurate as a polymerization initiator 1.8g were put into a mixing tank equipped with a stirrer, After replacing with nitrogen and removing the air in the mixing barrel, stir under reduced pressure for 2 hours, stop stirring, degas under reduced pressure, and pour into a glass mold fixed with polyester tape (diopter -5.00).

[0036](2) Put the glass mold injected with the mixture into a steel circu...

Embodiment 2～16

[0047] According to the same method as in Example 1, compositions and lenses were prepared in the combinations described in Tables 1 and 2, respectively, and the results were recorded in Tables 1 and 2.

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PUM

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Abstract

The present invention relates to an optical resin composition with excellent heat resistance and excellent impact resistance of multilayer film and a method for preparing an optical lens using the composition, and specially to a method for preparing the plastic glass lens which has the functions of excellent portability, excellent moldability, excellent dyeing property, excellent Abbe number, excellent transparency, ultraviolet obstructing property, etc. and has excellent heat resistance and excellent impact resistance of multilayer film. The present invention provides the optical resin composition which is obtained through mixing 38-68wt% of trivalent thiol ester compound and 32-62wt% of vulcabond compound after mixing with ultraviolet absorbent, demolding agent and polymerization initiator. The thermal expansion coefficient of glass lens prepared by the composition is lower and therefore the multilayer film does not easily split because of heating. The state of thermal deformation is less and the glass lens has excellent impact resistance.

Description

technical field [0001] The present invention relates to an optical resin composition and a method for preparing an optical lens using the composition, and more particularly to an optical resin composition having good heat resistance and impact resistance of a multilayer film, an optical lens using the composition, and its preparation method. Background technique [0002] Glass lenses, which have been widely used as optical lenses, have the following advantages: the coefficient of thermal expansion is low, so the deformation of the lens power due to changes in external temperature is small, and the multilayer coated on the surface to increase the transmittance The membrane suffers less damage from temperature changes. However, glass lenses are weak in impact resistance and heavy in specific gravity, so they are gradually replaced by plastic lenses that are lightweight, have good impact resistance, and have good processability such as dyeability compared to glass lenses. . ...

Claims

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Application Information

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IPC IPC(8): C08G18/38G02B1/04
CPCC08G18/3838C08G75/26C08J7/04C08L81/00G02B1/041G02C7/022G02C7/088
Inventor 张东奎金钟孝卢守均徐真武
Owner KOC SOLUTION
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