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:
May. 23, 2017
Filed:
Mar. 24, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Yohei Miyauchi, Inagi, JP;
Naotake Sato, Sagamihara, JP;
Yuichi Hashimoto, Tokyo, JP;
Toshihiro Kikuchi, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An object of the present invention is to provide a porous material (resin composition) having high heat insulation properties, mechanical properties, and electrical properties by controlling function of a porous film by setting a porosity size, distribution of the porosity size, and a porosity ratio of the porous film in predetermined ranges. The resin composition according to the present invention is comprised of an engineering plastic having porous structure in which not less than 80% of a total porosity is comprised of independent porosities, a mean porosity size is not less than 0.01 μm and not more than 0.9 μm, and not less than 80% of the total porosity has a porosity size within ±30% of the mean porosity size.