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Article and active energy ray curable resin composition

An active energy ray, curable resin technology, used in coatings, instruments, optics, etc.

Active Publication Date: 2017-04-05
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light-transmitting article formed from this curable resin composition still has room for improvement in terms of scratch resistance.

Method used

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  • Article and active energy ray curable resin composition
  • Article and active energy ray curable resin composition
  • Article and active energy ray curable resin composition

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0122] The light-transmitting article according to the present invention is a light-transmitting article provided with a fine concavo-convex structure layer containing a cured product of an active energy ray curable resin composition on at least one surface of a light-transmitting substrate; wherein , The interval between adjacent protrusions of the fine concavo-convex structure layer is 140-260 nm, the aspect ratio of the protrusions of the fine concavo-convex structure is 0.7-1.4, and the indentation modulus of elasticity ( X) [MPa] and creep deformation rate (Y) (%) satisfy the following equations (1) and (2).

[0123] 80≦X≦560 (1)

[0124] Y≦(0.00022X-0.01)×100 (2).

[0125] The anti-reflection article according to the present invention includes the light-transmitting article according to the present invention.

[0126] According to the present invention, a light-transmitting article with high scratch resistance and good fingerprint wiping properties can be provided.

[0127] The ...

no. 2 approach

[0268] Making the protrusions difficult to break and the resin itself difficult to be removed and digging off is a trade-off relationship. For a design that has these two opposite characteristics together, the molecular design of the monomer used is important.

[0269] The inventors used more oxyethylene groups (-CH 2 CH 2 O-) monomers, it was discovered that a fine concavo-convex structure excellent in scratch resistance can be obtained, and continued research on polyethylene glycol di(meth)acrylate has been conducted. It is further understood that for polyethylene glycol di(meth)acrylate, in terms of scratch resistance, it is preferable that the average molecular weight of the polyethylene glycol chain in the molecule is about 300 to 1000 (the number of moles of ethylene oxide is 7 ~23).

[0270] Furthermore, the inventors have conducted intensive studies, and as a result, in the polymerizable component (Z) in the active energy ray-curable resin composition, by using three or mo...

no. 3 approach

[0365] The inventors focused on the scratch resistance of a cured product derived from a crosslinked structure of a multifunctional (meth)acrylic monomer having a (meth)acryloyl structure, and (meth) having a polyalkylene glycol structure The flexibility of the cured product of the acrylic monomer was found to be very effective in imparting scratch resistance and flexibility by using a monomer having these two structures in a specific ratio, thus completing the present invention.

[0366] That is, the present invention is a light-transmitting article having a light-transmitting substrate and a cured product of an active energy ray-curable resin composition formed on at least one surface of the light-transmitting substrate The fine concavo-convex structure layer formed;

[0367] Wherein, the polymerizable compound contained in the active energy ray curable resin composition contains the polyalkylene glycol in the (meth)acrylic monomer (A3) represented by the following formula (a) T...

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Abstract

The present invention provides an article having high scratch resistance and good fingerprint wiping property. It is an article whose surface has a fine concavo-convex structure of a cured product containing a resin composition, and whose indentation modulus (X) [MPa] and creep modulus (Y) [% ] satisfy the following formulas (1) and (2). 80≦X≦560 (1) Y≦(0.00022X‑0.01)×100 (2).

Description

Technical field [0001] The present invention relates to an article and an active energy ray curable resin composition. [0002] This application is based on Japanese Application Japanese Application No. 2012-135982 filed on June 15, 2012, Japanese Application Japanese Application No. 2012-138147 filed on June 19, 2012, and Japanese Application Japanese Application No. 2012-245231 filed on November 7, 2012 And the Japanese application Japanese Application No. 2012-258346 filed on November 27, 2012 is based on claiming the right of priority, and the entire contents of the disclosure are included in this application. Background technique [0003] It is known that an article having a periodic fine concavo-convex structure on the surface of the visible light wavelength or less has an anti-reflection performance due to continuous refractive index changes in the fine concavo-convex structure. In addition, it is also known that the fine concavo-convex structure exhibits super waterproof p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/118C08F290/06C08F299/02
CPCB29C37/0067B29C59/046B29C2035/0827C08F290/062C08F222/102C08F222/106G02B1/118C08F299/02C08F222/10G02B1/111G02B1/11
Inventor 大谷刚守诚一朗井川雅资中井祐介安川桂子牧野伸治
Owner MITSUBISHI CHEM CORP