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Compoiste film for lens

A composite film and film technology, applied in glasses/goggles, synthetic resin layered products, optics, etc., can solve the problems of poor composite performance of cellulose triacetate, more expensive finished glasses, and poor surface hardness, etc. Achieve the effect of easy polarization processing, low cost and stable geometric size

Inactive Publication Date: 2008-07-23
AERMEI PHOTOCENSITIVE CHEM WUXI
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AI Technical Summary

Problems solved by technology

[0002] Cellulose triacetate (TAC) film is the main raw material of polarized eyeglass lenses, but its surface hardness is slightly poor, and its use is limited. Generally, it is necessary to compound CR-39 resin sheet or other wear-resistant polymer materials to make lenses
[0003] However, the compound performance of the existing cellulose triacetate (TAC) film and CR-39 resin sheet is not good, and there are more expensive cellulose esters of other brands on the market to make high-grade composite polarized lenses
Its cost is high, and the finished glasses are more expensive

Method used

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  • Compoiste film for lens
  • Compoiste film for lens
  • Compoiste film for lens

Examples

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example B

[0026] Name Weight percentage content (%)

[0027] Triacrylate 20~30 Tetraacrylate 20~30

[0028] Acetone 10~20 Methanol 5~10

[0029] Butanone 15~25 nanometer alumina (50-100nm) 0.5~2.5

[0030] The acrylate of the hardening layer also includes ethoxytrimethylpropane triacrylate, dimethoxypropane tetraacrylate, pentaerythritol triacrylate, ethoxypentaerythritol triacrylate, etc., which can be dissolved in the solvent of the above ratio .

[0031] Cellulose triacetate composite film of the present invention is specially used in making CR-39 resin polarized spectacle lens after polarizing treatment (see figure 2 ) and the manufacture of ultra-thin polarized dark lenses (see image 3 ).

[0032] figure 2 As shown, the surface can be infused with CR-39 resin after being coated with affinity cellulose butylacetate and then treated with polarizing light to become the base material of high-grade spectacle lenses.

[0033] image 3 The medium polarized PVA film is directly ...

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Abstract

The invention is a glasses compound film; it coats a layer of compatible film solution or hard strengthening film solution on the tri-acetic acid cellulose ester TAC, forms a layer of film after being dried. The process is simple, the cost is low. The invention provides a special compound film which is compatible to the CR-39 resin and the surface hard strengthening film for producing film black glasses plates. It has wide prospect.

Description

technical field [0001] The invention relates to a production method of a composite film for a mirror, in particular to compounding a layer of high molecular compound with affinity or increasing surface hardness on a triacetate cellulose (TAC) film by means of coating or roller coating The formed mirror composite film. Background technique [0002] Cellulose triacetate (TAC) film is the main raw material of polarized eyeglass lenses, but its surface hardness is slightly poor, and its use is limited. Generally, it is necessary to compound CR-39 resin sheet or other wear-resistant polymer materials to make lenses . [0003] However, the compound performance of the existing cellulose triacetate (TAC) film and CR-39 resin sheet is not good, and there are more expensive cellulose esters of other brands on the market to make high-grade composite polarized lenses. Its cost is high, and the price of finished glasses is more expensive. Contents of the invention [0004] The purpo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/10G02C7/12B32B27/00
Inventor 潘铭兴
Owner AERMEI PHOTOCENSITIVE CHEM WUXI
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