Mitsubishi Rayon Company, Limited

Mitsubishi Chemical Corporation

Tsuyoshi Takihara

Eiko Okamoto

Seiichiro Mori

Yusuke Nakai

Go Otani

Hiroshi Onomoto

A structural body which comprises a base and a microrelief structure layer having a microrelief structure. The microrelief structure layer is laminated on the base so as to form the surface layer of this structural body, and the microrelief structure layer has at least one physical property selected from the group consisting of (A) and (B) described below. (A) The elastic modulus at 25&#xb0; C. is 50 MPa or more, and the elastic modulus at 80&#xb0; C. is 30 MPa or less. (B) The tensile elongation at break at 80&#xb0; C. is from 20% to 100% (inclusive).

Microrelief structural body, decorative sheet, decorative resin molded body, method for producing microrelief structural body, and method for producing decorative resin molded body

In a protective film affixed to a microscopic roughness structure having a microscopically rough structure on the surface, water contact angle of the surface of the microscopic roughness structure is 40&#xb0; or less, compressive stress obtainable when the adhesive layer of the protective film is compressed to a compression ratio of 20% is 0.6 MPa to 3.0 MPa; in the infrared absorption spectrum of the surface on the microscopically rough structure side of the microscopic roughness structure, ratio (A1/A2) of peak area A1 having absorption maximum of 3700 cmto 3100 cm, and peak area A2 having absorption maximum of 1730&#xb1;10 cm, is 0.1 to 0.8; in the surface of adhesive layer of the protective film, ratio (B1/B2) of peak area B1 having absorption maximum of 3700 cmto 3100 cm, and peak area B2 having absorption maximum of 1730&#xb1;10 cm, is 0.6 to 1.3.

Microscopic roughness structure with protective film and method thereof

A laminate includes a substrate, and a surface layer laminated on the substrate with an intermediate layer sandwiched therebetween. The intermediate layer has a thickness of 8 to 40 &#x3bc;m. The surface layer has a thickness 0.4 to 1.5 times that of the intermediate layer. The laminate satisfies the following (A) and/or (B): (A) tan &#x3b4; (loss tangent) of the intermediate layer as measured under a condition of a vibration frequency of 1 Hz at 20&#xb0; C. is 0.2 or greater; and (B) A ratio (MG/SG) of a storage modulus (MG) of the intermediate layer to a storage modulus (SG) of the surface layer as measured under a condition of a vibration frequency of 1 Hz at 20&#xb0; C. is 0.003 or greater and 0.14 or less.

Laminate and method for manufacturing the same

The present invention provides an active energy ray-curable resin composition comprising at least a multifunctional monomer having three or more radical polymerizable functional groups in the molecule in which the cured product of the composition exhibits anti-reflective function because of an uneven microstructure formed on the surface of the cured product, and provides a product having the uneven microstructure having high decontaminating properties such as fingerprint removal properties and high scratch resistance.

Active energy ray-curable resin composition, product having the uneven microstructure, and method for producing product having the uneven microstructure

Disclosed is an activation energy ray-curable resin composition comprising 70 to 95 parts by mass of a multifunctional monomer (A) which has a surface free energy of 37 mJ/mor more when cured and 5 to 30 parts by mass of a fluorine (meth)acrylate (B) which is compatible with the multifunctional monomer (A) (a total content of all monomers in the composition shall be 100 parts by mass), wherein the multifunctional monomer (A) has three or more radical polymerizable functional groups in a molecule and a value of a molecular weight thereof divided by the number of the radical polymerizable functional group (molecular weight/number of radical polymerizable functional group) is 110 to 200, and wherein the fluorine (meth)acrylate (B) has one or more radical polymerizable functional groups in a molecule.

Active energy ray-curable resin composition, nano ridge/groove structure using same and production method for said structure, and water repellent article provided with nano ridge/groove structure

Growing community of inventors

Otake, Japan

Tsuyoshi Takihara