Article and active energy ray-curable resin composition
An active energy ray, curable resin technology, used in coatings, instruments, optics, etc.
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no. 1 approach
[0121] 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 convex portions of the fine concave-convex structure layer is 140-260 nm, the aspect ratio of the convex portions of the fine concave-convex structure is 0.7-1.4, and the indentation elastic modulus of the cured product ( X) [MPa] and creep deformation rate (Y) (%) satisfy the following formulas (1) and (2).
[0122] 80≦X≦560 (1)
[0123] Y≦(0.00022X-0.01)×100 (2).
[0124] The antireflection article according to the present invention includes the translucent article according to the present invention.
[0125] According to the present invention, a light-transmitting article having high scratch resistance and good fingerprint wiping-off property ca...
no. 2 approach
[0267] It is easy to become a trade-off relationship between making the protrusion difficult to break and the resin itself difficult to cut or dig. The molecular design of the monomer to be used is important for designing a combination of these two opposite properties.
[0268] The present inventor has more oxyethylene groups (-CH) in the molecule by using 2 CH 2 O-) monomer, it was found that a fine concave-convex structure with excellent scratch resistance can be obtained, and continued research on polyethylene glycol di(meth)acrylate. It is further understood that for polyethylene glycol di(meth)acrylate, in terms of scratch resistance, the average molecular weight of the polyethylene glycol chain in the molecule is preferably about 300 to 1000 (the number of moles of ethylene oxide is 7 ~23 or so).
[0269] Further, as a result of intensive studies by the present inventors, in the polymerizable component (Z) in the active energy ray-curable resin composition, by using (...
no. 3 approach
[0364] The present inventors focused on the scratch resistance of a cured product derived from a crosslinked structure of a polyfunctional (meth)acrylic monomer having a (meth)acryloyl structure and the (meth)acryl monomer having a polyalkylene glycol structure. The flexibility of the cured product of acrylic monomers, and found that the use of monomers having these two structures in a specific ratio can be very effective in imparting scratch resistance and flexibility, thus completing the present invention.
[0365] That is, the present invention is a light-transmitting article comprising 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. Constructed fine concave-convex structure layer;
[0366] Among them, the polymerizable compound contained in the active energy ray-curable resin composition contains polyalkylene glycol in the (meth)acrylic monomer (A3) repr...
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Abstract
Description
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