Adhesive for sunglass surface membrane and preparation method thereof

A technology for adhesives and glasses, applied in the direction of adhesives, adhesive additives, adhesive types, etc., can solve the problems of firmness and light transmittance, and achieve the effect of significant technological progress and high-strength adhesion

Inactive Publication Date: 2018-08-10
上海浦悠化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned technical problems in the prior art, the invention provides a kind of adhesive for sunglass mirror film and its preparation method, and described this adhesive for sunglass mirror film and its preparation method will solve existing The technical problem that the adhesive strength and light transmittance of the sunglass mirror film cannot be balanced

Method used

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  • Adhesive for sunglass surface membrane and preparation method thereof
  • Adhesive for sunglass surface membrane and preparation method thereof
  • Adhesive for sunglass surface membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 (this adhesive production process)

[0026] The invention provides an adhesive for sunglasses mirror film, which is composed of the following raw materials in mass percentage:

[0027]

[0028]

[0029] Described first base resin is thermoplastic polyurethane, and its structural formula is:

[0030] -[OCNH-R-NHCO-OR’-O] n -, 1000

[0031] Described second base resin is thermoplastic polyurethane, and its structural formula is:

[0032] -[OCNH-R-NHCO-OR’-O] n -, 2000

[0033] Specifically, the first base resin is thermoplastic polyurethane, and its structural formula is:

[0034] -[OCNH-R-NHCO-OR’-O] n -, n=2500; R is phenyl

[0035] Described second base resin is thermoplastic polyurethane, and its structural formula is:

[0036] -[OCNH-R-NHCO-OR’-O] n -, n=4000, R is phenyl.

[0037] The present invention also provides the preparation method of the above-mentioned adhesive for the mirror film of sung...

Embodiment 2

[0040] Embodiment 2 (this adhesive using method)

[0041] Such as figure 1 As shown, the adhesive for the mirror film of sunglasses of the present invention can be attached to the mirror film 3 by wetting or coating, thereby forming the adhesive layer 2 and the adhesive layer 4, which are respectively connected with the lens resin monomer (outside ) 1 and the lens resin monomer (inside) 5 form a finished lens with a bonding interface with high light transmittance and high bonding strength in an oven at 80 degrees Celsius.

[0042] The lens resin monomer (outer) 1 and the lens resin monomer (inner) 5 are generally made of CR39 material, the outer thickness is 1-10 mm, and the inner thickness is 100-500 nanometers. The mirror film 3 is generally made of CR39 material with a thickness of 1-300 nanometers.

Embodiment 3

[0043] Example 3: (this adhesive performance "curing curve" test method)

[0044] 1) Prepare 40 samples respectively, inject the monomer into the reaction mold, and fill the homogeneous monomer liquid on both sides of the mirror film soaked in the adhesive prepared by the method in Example 1.

[0045] 2) Take out two samples every half hour, observe the curing situation and detect the refractive index by the minimum deviation angle method.

[0046] 3) Calculation degree of curing = instant refractive index / refractive index after complete curing.

[0047] Experimental data:

[0048] figure 2 with image 3 The curing curve is based on the instant refractive index / refractive index after complete reaction as the evaluation standard. It can be seen that the curing efficiency of the new adhesive is obviously better than that of the old adhesive, and it can be fully cured within the processing period to improve the adhesion.

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Abstract

The invention provides an adhesive for a sunglass surface membrane. The adhesive is prepared from the following ingredients in percentage by mass: 10 percent of first base resin, 5 percent of second base resin, 45 percent of butanone and 40 percent of butyl acetate, wherein the first base resin is thermoplastic polyurethane, and has the structural formula being -[OCNH-R-NHCO-OR'-O]n-, wherein n isgreater than 1000 but is smaller than 4000; the second base resin is thermoplastic polyurethane, and has the structural formula being -[OCNH-R-NHCO-OR'-O]n-, wherein n is greater than 2000 but is smaller than 5000. The invention also provides a preparation method of the adhesive for the sunglass surface membrane. The adhesive has good light transmittance of an ordinary sunglass surface membrane adhesive; meanwhile, through the base resin in two kinds of crystal morphology, i.e., the mutual action of the effective ingredients of the adhesive, the sunglass surface membrane has higher-intensitybonding performance and is difficult to peel off a sunglass.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to an adhesive, in particular to an adhesive for sunglasses mirror film and a preparation method thereof. Background technique [0002] Mirror film lenses are more and more popular among people, and the adhesive used for the mirror film involved is a key factor affecting the firmness of the entire lens and properties such as light transmittance. This kind of adhesive currently on the market still cannot achieve both firmness and light transmittance and strict cost control while the pass rate exceeds 95%. Therefore, a new type of adhesive for sunglasses mirror film meets the needs of users. Contents of the invention [0003] Aiming at the above-mentioned technical problems in the prior art, the invention provides a kind of adhesive for sunglass mirror film and its preparation method, and described this adhesive for sunglass mirror film and its preparation method will solve existing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J11/08
CPCC08L2205/025C09J11/08C09J175/04C08L75/04
Inventor 姚伟
Owner 上海浦悠化工有限公司
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