Asahi Kasei E-materials Corporation

Asahi Kasei Kabushiki Kaisha

Kentaro Shiraishi

Hiroaki Takanohashi

Shuichiro Ogawa

Junichi Hirose

Waka Goto

Kazuya Iseda

Mifuyu Niwa

The problem addressed by the present invention is to provide an antifogging coating film having excellent antifogging property, antifogging persistence, persistence of appearance, and elution resistance. The coating film according to the present invention contains a metal oxide (A) and a hydrophilic compound (B); the height of the eluate by a coating film surface elution test is 1.0 &#x3bc;m or less; this test is carried out by placing 10 &#x3bc;L of deionized water on the coating film, allowing the film to stand for 24 hours in a 23&#xb0; C., 50% RH environment, measuring the eluate height of 20 locations selected randomly within a 10 cmrange on the coating film surface, and determining the maximum height; and the water contact angle measured after subjecting the coating film to a moisture resistance test by exposure for 24 hours in an 85&#xb0; C., 85% RH environment followed by standing for one hour in a 23&#xb0; C., 50% RH environment, is less than 40&#xb0;. Preferably, the elution level per coating film unit volume by a coating film total elution test is 40 mg/cmor less, and this test is carried out by immersing the coating film in 23&#xb0; C. deionized water for 24 hours, then measuring the weight of the coating film eluate recovered from the deionized water.

High-durability 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

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

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Tokyo, Japan

Kentaro Shiraishi