Spectacle lens and preparation method thereof

A spectacle lens and lens technology, which is applied in the field of lenses, can solve the problems of poor anti-blue light performance and aging resistance, light transmittance, low tensile strength and bending strength, and achieve high response adequacy, tensile strength and bending strength Effect of high, good wear resistance and scratch resistance

Inactive Publication Date: 2017-03-22
东莞粤恒光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the polycarbonate currently on the market generally has the defects of poor anti-blue light performance and aging resistance, low light transmittance, tensile strength, and bending strength, which cannot well meet the needs of consumers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A spectacle lens, comprising a lens substrate layer and an anti-blue light coating coated on the front and back of the lens substrate layer, the lens substrate layer is composed of the following raw materials in parts by weight: 90 parts of polycarbonate, dimethyl ethoxylate 40 parts of acrylate, 30 parts of allyl diethylene glycol carbonate, 4 parts of pentaerythritol tetramercaptoacetate, 2 parts of diisopropyl peroxydicarbonate, 1 part of ultraviolet absorber, and 6 parts of plasticizer.

[0026] The anti-blue light coating is composed of the following raw materials in parts by weight: 5 parts of silicon monoxide, 5 parts of silicon dioxide, 15 parts of titanium dioxide, 10 parts of trititanium pentoxide, 10 parts of iron oxide, 5 parts of rubidium, and 5 parts of tin oxide.

[0027] Described plasticizer is tributyl citrate.

[0028] The ultraviolet absorber is UV-9.

[0029] The thickness of the anti-blue light coating is 80nm.

[0030] A method for preparing spe...

Embodiment 2

[0032] A spectacle lens, comprising a lens substrate layer and an anti-blue light coating coated on the front and back of the lens substrate layer, the lens substrate layer is composed of the following raw materials in parts by weight: 95 parts of polycarbonate, dimethyl ethoxylate 45 parts of acrylate, 35 parts of allyl diethylene glycol carbonate, 5 parts of pentaerythritol tetramercaptoacetate, 2.5 parts of diisopropyl peroxydicarbonate, 1.2 parts of ultraviolet absorber, and 7 parts of plasticizer.

[0033] The anti-blue light coating consists of the following raw materials in parts by weight: 6 parts of silicon monoxide, 6 parts of silicon dioxide, 18 parts of titanium dioxide, 15 parts of trititanium pentoxide, 11 parts of iron oxide, 6 parts of rubidium, and 6 parts of tin oxide.

[0034] Described plasticizer is trioctyl citrate.

[0035] The ultraviolet absorber is UV-531.

[0036] The thickness of the anti-blue light coating is 120nm.

[0037]A method for preparing...

Embodiment 3

[0039] A spectacle lens, comprising a lens substrate layer and an anti-blue light coating coated on the front and back of the lens substrate layer, the lens substrate layer is composed of the following raw materials in parts by weight: 100 parts of polycarbonate, dimethyl ethoxylate 50 parts of acrylate, 40 parts of allyl diethylene glycol carbonate, 6 parts of pentaerythritol tetramercaptoacetate, 3 parts of diisopropyl peroxydicarbonate, 1.5 parts of ultraviolet absorber, and 8 parts of plasticizer.

[0040] The anti-blue light coating is composed of the following raw materials in parts by weight: the anti-blue light coating is composed of the following raw materials in parts by weight: 7 parts of silicon monoxide, 7 parts of silicon dioxide, 20 parts of titanium dioxide, 20 parts of titanium pentoxide, oxidized 13 parts of iron, 7 parts of rubidium, and 7 parts of tin oxide.

[0041] The plasticizer is acetyl tributyl citrate.

[0042] The ultraviolet absorber is UV-9.

...

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Abstract

The invention relates to the technical field of lenses, particularly a spectacle lens and a preparation method thereof. The spectacle lens comprises a lens substrate layer and anti-blue-light coatings coated on the front and back surfaces of the lens substrate layer. The lens substrate layer is composed of the following raw materials in parts by weight: 90-110 parts of polycarbonate, 40-60 parts of ethoxy dimethyl acrylate, 30-50 parts of allyl diethylene glycol carbonate, 4-8 parts of pentaerythritol tetrathioglycolate, 2-4 parts of diisopropyl peroxydicarbonate, 1-2 parts of ultraviolet absorbent and 6-10 parts of plasticizer. The spectacle lens has the advantages of excellent blue light resistance, favorable light transmittance, favorable tensile strength and favorable bending strength. The preparation method is simple in technique. The prepared spectacle lens has high tensile strength and bending strength.

Description

technical field [0001] The invention relates to the technical field of lenses, in particular to a spectacle lens and a preparation method thereof. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics. At present, only aromatic polycarbonate has been produced industrially. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. [0003] Polycarbonate occupies an extremely important position in this field because of its unique characteristics of high light transmittance, high refractive index, high impact resistance, dim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/06C08L51/08C08K5/11C08K5/132C08F283/02G02C7/02
CPCC08J7/06C08F283/02C08J2351/08C08K5/11C08K5/132C08K2201/014C08L2201/08G02C7/02C08L51/08
Inventor 黄志峰杨华英李剑波
Owner 东莞粤恒光学有限公司
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