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公开(公告)号：US20230227672A1
公开(公告)日：2023-07-20
申请号：US18007149
申请日：2021-07-16
IPC分类号： C09D7/61 , C01B25/32 , C09D7/40 , C09D4/06 , C09D133/04 , A61L27/12 , A61L27/56 , B33Y70/00 , B33Y80/00
CPC分类号： C09D7/61 , C01B25/32 , C09D7/69 , C09D7/68 , C09D4/06 , C09D133/04 , A61L27/12 , A61L27/56 , B33Y70/00 , B33Y80/00 , C01P2004/62 , C01P2004/61 , C01P2006/14 , C01P2006/16 , C01P2006/12 , A61F2002/30962
摘要： An object of the present invention is to provide a calcium phosphate powder that enables the preparation of a slurry for additive manufacturing with excellent dispersion stability, and enables the production of a three-dimensional additive manufacturing article with high strength, in additive manufacturing. Provided is a calcium phosphate powder, having an average particle size (D50) of 0.1 to 5.0 μm, and having a pore volume of mesopores (pore size: 2 to 50 nm) of 0.01 to 0.06 cc/g as measured by a gas adsorption method. The calcium phosphate powder has excellent dispersion stability in a slurry for additive manufacturing, and, by performing additive manufacturing using a slurry for additive manufacturing containing the calcium phosphate, it is possible to produce a three-dimensional additive manufacturing article with high strength, which is useful as an implant, such as an artificial bone.
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公开(公告)号：US20230226255A1
公开(公告)日：2023-07-20
申请号：US18007127
申请日：2021-06-30
发明人： Naoyuki KITAMURA , Akihito BANDO , Yuta TSUMURA , Yohei KUSHIKI
CPC分类号： A61L27/32 , C01B25/32 , C08J7/046 , C08J7/06 , A61L27/06 , A61L27/18 , A61L27/56 , C23C4/04 , C01P2004/61 , C01P2006/14 , C01P2006/16 , C01P2006/12 , C08J2371/08 , A61L2420/02 , A61L2430/24 , C23C4/134
摘要： The present invention addresses the problem of providing a plasma spraying material with which it is possible to form an HAp film that has high hardness and is not susceptible to abrasion, even under conditions involving plasma spraying with low flame energy. In the present invention, an HAp powder having an average particle diameter (D50) of 15-40 μm and a pore volume of 0.01-0.30 cc/g at a pore diameter of 2000 nm or less as measured through mercury intrusion makes it possible to form an HAp film that has high hardness, is not susceptible to abrasion, and can be subjected to plasma spraying, even under conditions involving plasma spraying with low flame energy.
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公开(公告)号：US20200347239A1
公开(公告)日：2020-11-05
申请号：US16770030
申请日：2018-12-06
发明人： Naoyuki KITAMURA , Akihito BANDO , Yuta TSUMURA , Shota MINAMI
摘要： The purpose of the present invention is to provide a plasma spray material which is capable of forming a hydroxyapatite film that exhibits high adhesion strength with respect to substrates such as metal substrates. When used as a plasma spray material, hydroxyapatite powder having a modal diameter of 550-1000 nm in a pore diameter of at most 5000 nm as measured by a mercury intrusion method is capable of forming a hydroxyapatite film that exhibits high adhesion strength with respect to substrates such as metal substrates.
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