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. 14, 2023
Filed:
Mar. 09, 2021
Applicants:
Satoshi Ogawa, Nara, JP;
Tomoharu Miki, Kanagawa, JP;
Inventors:
Satoshi Ogawa, Nara, JP;
Tomoharu Miki, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 53/00 (2006.01); B29C 64/153 (2017.01); C08L 23/12 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08L 53/00 (2013.01); B29C 64/153 (2017.08); C08L 23/12 (2013.01); B29K 2023/12 (2013.01); B29K 2105/251 (2013.01);
Abstract
Provided is a resin powder including a polyolefin-based resin, wherein a melting point of the resin powder is 150 degrees C. or higher, wherein a melt mass flow rate (MFR) of the resin powder measured according to JIS K 7210 is 0.35 (g/10 min) or greater but 8.50 (g/10 min) or less, and wherein a particle size distribution (volume average particle diameter Dv/number average particle diameter Dn) of the resin powder is 1.35 or less. In preferred embodiments, an average circularity of the resin powder is 0.975 or greater, and the polyolefin-based resin is a block copolymerized polypropylene resin.