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Surface treated optical member

A technology for optical components and surface treatment, which is applied in the direction of optical components, optics, and other chemical processes, and can solve the problems of reduced transparency, blurring, etc.

Pending Publication Date: 2021-08-06
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the coating layer made of the existing fluoropolyether group-containing polymer has excellent antifouling properties due to its high water and oil repellency, the attached liquid is repelled by the surface, thereby forming tiny droplets, and there is a problem due to Blurring due to light scattering and loss of transparency

Method used

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Examples

Experimental program
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Embodiment

[0426] Hereinafter, synthesis examples, examples, and comparative examples are shown, and the present invention will be described in more detail, but the present invention is not limited by the following examples.

Synthetic example 1

[0428] 1,4-bis(dimethylsilyl)benzene 45.7g (2.35×10 -1 mol) was heated to 80°C. Next, add 1.0×10 toluene solution of chloroplatinic acid / vinylsiloxane complex -2 g (based on Pt single substance, containing 3.0×10 -7 mol), 10.0 g of ethyl undecylenate (4.71×10 -2 mol), heated and stirred for 1 hour. Then, by distilling off the solvent and unreacted substances under reduced pressure, the following formula (A) was obtained:

[0429] [chem 114]

[0430]

[0431] The indicated product was 18.0 g.

[0432] 1 H-NMR

[0433] δ0.2-0.4(-Si-C H 3 )12H

[0434] δ0.7(-(CH 2 ) 7 C H 2 -Si-)2H

[0435] δ1.2-1.5(-(C H 2 ) 7 -, -OCH 2 C H 3 )17H

[0436] δ1.6(-OOC-CH 2 C H 2 (CH 2 ) 7 CH 2 -Si-)2H

[0437] δ2.3(-OOC-C H 2 -)2H

[0438] δ4.1(-OC H 2 CH 3 )2H

[0439] δ4.4(-Si-H)1H

[0440] δ7.5(-Si-C 6 H 4 -Si-)4H

[0441] The above-mentioned obtained by putting into reaction vessel is obtained by following formula (A)

[0442] [chem 115]

[0443] ...

Synthetic example 2

[0460] The ethyl undecylenate 10.0g (4.71×10 -2 mol) was heated to 80°C. Next, add 1.0×10 toluene solution of chloroplatinic acid / vinylsiloxane complex -2 g (based on Pt single substance, containing 3.0×10 -7 mol), lasted 3 hours to drip 8.6g of trimethoxysilane (7.06×10 -2 mol), heated and stirred for 1 hour. Then, by distilling off the solvent and unreacted substances under reduced pressure, the following formula (C) was obtained:

[0461] [chem 117]

[0462] C 2 h 5 -OOC-(CH 2 ) 10 -Si(OCH 3 ) 3 (C)

[0463] Represented compound 12.1 g.

[0464] 1 H-NMR

[0465] δ0.8(-(CH 2 ) 7 C H 2 -Si(OCH 3 ) 3 )2H

[0466] δ1.2-1.4(-(C H 2 ) 7 -, -OCH 2 C H 3 )17H

[0467] δ1.6(-OOC-CH 2 C H 2 (CH 2 ) 7 CH 2 -Si-)2H

[0468] δ2.3(-OOC-C H 2 -)2H

[0469] δ3.5(-Si(OC H 3 ) 3 )9H

[0470] δ4.1(-OC H 2 CH 3 )2H

[0471] Tetramethyldisiloxane 4.5g (3.4×10 -2 mol), 12N hydrochloric acid aqueous solution 3.6g (4.3×10 -2 mol) and 2.5 g of 1,4-bi...

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Abstract

This optical member is formed by being surface treated with a surface treatment agent, preferably a surface treatment agent containing an organosilane or an organosiloxane compound containing a lipophilic group and a functional group for tight contact with a base material, wherein the oleic acid contact angle of the surface treatment agent layer is 20 degrees or less. The optical member has excellent lipophilicity and does not lose transparency even when oil stains have adhered thereto.

Description

technical field [0001] The present invention relates to an optical member surface-treated with a surface treatment agent containing an organosilane or organosiloxane compound having a functional group having adhesion to a substrate and an lipophilic group in the molecule. Background technique [0002] In general, optical components such as camera lenses and other photographic devices adhere to water droplets and oil stains due to weather and surrounding environments, and lose transparency, sometimes resulting in blurred images. Therefore, in order to improve the appearance and transparency, there is an increasing demand for technologies to prevent stains from adhering to optical members and technologies to make stains inconspicuous, and it is desired to develop materials that can meet these demands. [0003] Generally, silane coupling agents are well known as surface modifiers for substrates such as glass and resin, and widely used as coating agents for the surfaces of vario...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/00G02B1/18
CPCG02B1/18C09K3/00
Inventor 森圣矢
Owner SHIN ETSU CHEM IND CO LTD