Asahi Kasei E-materials Corporation

Asahi Kasei Kabushiki Kaisha

Asahi Kasei Chemicals Corporation

Hiroaki Takanohashi

Junichi Hirose

Akira Nakabayashi

Shuichiro Ogawa

Kentaro Shiraishi

Waka Goto

Michiyo Yamane

Tatsuro Niguma

Shinji Funakoshi

Kazuya Iseda

Naoya Tochishita

The present disclosure is directed to provide a novel metal particle annular structure capable of functioning as a metamaterial in three dimensions. The metal particle annular structure (C) of the present disclosure includes an insulative support (B) having a particle connecting structure including a plurality of particles connecting to one another, and a plurality of metal particles (A) arranged annularly around the insulative support (B).

Metal particle annular structure, insulator-coated metal particle annular structure, and composition

The present invention pertains to a coating film, and more particularly, to an antifogging coating film having excellent antifogging properties, ability to retain antifogging properties, and water resistance. The coating film according to the present invention contains a metal oxide (A) and a hydrophilic compound (B), wherein the elemental concentration ratio (C1s/M), which is between the element C and a metal element and which is obtained from a metal (M) spectrum derived from the metal oxide and a C1s spectrum in an elemental analysis of the surface using XPS, is within the range of 0.2-10. The relative elemental concentration of the element C obtained from a C1s spectrum derived from carbon-oxygen bonds and/or carbon-nitrogen bonds in elemental analysis of the surface using XPS may be within the range of 5-50 atomic %. The metal oxide may be colloidal silica. The coating film according to the present invention can be particularly preferably used as an antifogging coating film and a coating film for automotive exterior parts.

Highly durable antifogging coating film and coating composition

Provided is a coating composition excellent in antifouling properties, transparency and hydrophilicity, wherein the coating composition contains (A) a metal oxide particle having a number average particle size of 1 nm to 400 nm; and (B) a polymer particle, in which the content of an aqueous-phase component in the component (B), represented by the expression (I), is 20 mass % or less, where (I) (%)=(dry mass of a filtrate obtained by filtering the component (B) at a molecular cutoff of 50,000)&#xd7;(100&#x2212;total mass of solid content)/(mass of the filtrate&#x2212;dry mass of the filtrate)&#xd7;100/the total mass of solid content.

Coating composition, coating film, laminate and process for manufacturing the laminate

Coating composition, coating film, laminate, and process for manufacturing the laminate

Disclosed is an organic-inorganic hybrid composition containing a metal oxide (A) having a particle diameter of 1-400 nm and a polymer emulsion particle (B) having a particle diameter of 10-800 nm. The polymer emulsion particle (B) is obtained by polymerizing a hydrolyzable silicon compound (b1) and a vinyl monomer (b2) having a secondary and/or tertiary amide group in the presence of water and an emulsifying agent.

Aqueous organic-inorganic hybrid composition

Provided is a coating composition excellent in antifouling properties, transparency and hydrophilicity, wherein the coating composition contains (A) a metal oxide particle having a number average particle size of 1 nm to 400 nm; and (B) a polymer particle, in which the content of an aqueous-phase component in the component (B), represented by the expression (I), is 20 mass % or less, where (I)(%)=(dry mass of a filtrate obtained by filtering the component (B) at a molecular cutoff of 50,000)&#xd7;(100&#x2212;total mass of solid content)/(mass of the filtrate&#x2212;dry mass of the filtrate)&#xd7;100/the total mass of solid content.

Coating composition, coating film, laminate, and process for production of laminate

Disclosed is an organic-inorganic hybrid composition containing a metal oxide (A) having a particle diameter of 1-400 nm and a polymer emulsion particle (B) having a particle diameter of 10-800 nm. The polymer emulsion particle (B) is obtained by polymerizing a hydrolysable silicon compound (b1) and a vinyl monomer (b2) having a secondary and/or tertiary amide group in the presence of water and an emulsifying agent.

The present invention discloses a polymer emulsion used for manufacturing a recording medium, characterized in comprising at least a polymer compound (A) which shows hydrophilicity at a temperature region not higher than a specific temperature (temperature-sensitive point), whereas lipophilicity in a temperature region above the temperature-sensitive point.

Growing community of inventors

Tokyo, Japan

Hiroaki Takanohashi