The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Dec. 19, 2022
Daikin Industries, Ltd., Osaka, JP;
National University Corporation Kobe University, Kobe, JP;
Yoshito Tanaka, Osaka, JP;
Mayumi Iida, Osaka, JP;
Yuko Shiotani, Osaka, JP;
Marina Aihara, Osaka, JP;
Masahiro Higashi, Osaka, JP;
Hideto Minami, Kobe, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, Hyogo, JP;
Abstract
An organic fine particle comprising a core polymer and a shell polymer. The core polymer has a Tg or a melting point of 15° C. or more, the core polymer has a water contact angle of 100° or more, all monofunctional monomers constituting the core polymer are a hydrophobic core monomer of which homopolymer has a water contact angle of 100° or more, the shell polymer has a Tg or a melting point lower than Tg or the melting point of the core polymer, the shell polymer has a water contact angle of less than 100°, and all monofunctional monomers constituting the shell polymer are a water-insoluble shell monomer of which homopolymer is water-insoluble. Also disclosed is a surface coating structure including the organic fine particle and a water-repellant composition including a dispersion of the organic fine particle.