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

An optical resin, optical lens technology, applied in optics, lenses, optical components, etc., can solve the problems of lens deformation, weak heat resistance, unable to pass FDA impact test standards, etc.

Active Publication Date: 2008-03-12
KOC SOLUTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can increase the refractive index, there is a problem that the impact test cannot pass the FDA impact test standard after multi-layer coating
[0007] Also, there are injection-molded polycarbonate lenses, which have strong (anti)impact strength after multi-layer coating, but have weak heat resistance and have the problem of severe deformation of the central part of the lens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) 53.2g of hexamethylene diisocyanate (HMDI) and 362g of isophorone diisocyanate (IPDI), 584.6g of pentaerythritol tetrakis (3-mercaptopropionate) (pentaerythritol tetrakis (3-mercaptopropionate) ) (PETMP), 20 g of 2-(2'-hydroxy-5-methylphenyl)-2H-benzotriazole (2-(2'-hydroxy-methylphenyl)-2H-benzotriazole) as a UV absorber , 0.1g of diisooctyl phosphate (isopropyl acid-phosphate) as a release agent, 20ppm of 1-hydroxy-4-(p-methylaniline) anthraquinone (1-hydroxy- 4-(p-toluidine)anthraquinone) (blue), 10ppm of alizarone (red), 1.0g of butyltin dilaurate as a polymerization initiator are installed in a batching bucket equipped with a stirrer, replaced with nitrogen, and removed The air in the batching barrel was then stirred under reduced pressure for 2 hours, and then degassed under reduced pressure after the stirring was stopped, and injected into a glass mold (diopter-5.00) fixed by a polyester adhesive tape.

[0026] (2) Place the glass mold injected with the mixt...

Embodiment 2～24

[0040] In the same manner as in Example 1, a composition and a lens were respectively produced with the compositions shown in Tables 1-3, and the experimental results are shown in Tables 1-3.

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Abstract

Disclosed herein are an optical resin composition with superior impact resistance and a method for producing an optical lens from the composition. More specifically, the optical resin composition for a plastic optical lens has superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency. The optical lens produced from the composition exhibits superior impact resistance even after multi- coating. The optical resin composition with superior impact resistance has a solid refractive index (nD) of 1.53 to 1.57, an Abbe number of 35 to 48, a liquid specific gravity of 0.97 to 1.25 and a solid specific gravity of 1.10 to 1.35, by which the composition comprises a mixture of isophorone diisocyanate and hexamethylene diisocyanate, pentaerythritol tetrakis(3-mercaptopropionate), a UV absorber, a release agent and a polymerization initiator. The optical lens is produced by thermally curing the composition.

Description

technical field [0001] The present invention relates to an optical resin composition having good impact resistance and a method for producing an optical lens using the same, and more particularly, to an optical resin composition having good lightness, moldability, dyeability, Abbe's number (Abbe's number) , transparency, and a plastic optical resin composition having good impact resistance after multi-layer coating and a method for manufacturing an optical lens using the composition. Background technique [0002] Compared with glass lenses, plastic optical lenses are widely used due to their good lightness, dyeability, and impact resistance. multilayer (SiO 2 , ZrO 2 etc.), so there is a problem that (anti)shock performance is significantly reduced. This problem is a problem in all low refraction lenses, medium refraction lenses, high refraction lenses, and super high refraction lenses. [0003] A plastic optical lens (center thickness 1.2 mm) made of low-refraction mono...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/72C08G18/32C08G18/24C08K5/521G02B1/04G02C7/02C08K5/3475
CPCC08G18/3876C08G18/722Y10T428/31551C08G18/72C08L75/04G02B1/04G02B1/041G02B3/00G02C7/02
Inventor 张东奎金钟孝
Owner KOC SOLUTION
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