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:
Mar. 20, 2018
Filed:
Mar. 18, 2015
Nippon Shokubai Co., Ltd., Osaka, JP;
Kazuaki Matsumoto, Osaka, JP;
Yohei Okubo, Osaka, JP;
Tomonari Takata, Hyogo, JP;
Junko Kita, Osaka, JP;
Naoki Kobayashi, Osaka, JP;
NIPPON SHOKUBAI CO., LTD., Osaka, JP;
Abstract
The object of the present invention is to provide a resin particle having a protrusion that is more resistant to the detachment and having a uniform protrusion size and protrusion distribution density. The resin particle of the present invention comprises: a spherical part and a peripheral part having a plurality of convex part formed on the surface of the spherical part, wherein the spherical part and the peripheral part comprise a vinyl polymer and/or a polysiloxane component, the spherical part and the peripheral part are different in the composition, the melting point of the peripheral part is not less than 200° C., and the curvature center of the boundary between the peripheral part and the spherical part determined by a transmission electron microscope observation of the cross-section of the resin particle exists in the spherical part.