EP3980389A4 - A green body composition and functional gradient materials prepared thereof - Google Patents

A green body composition and functional gradient materials prepared thereof Download PDF

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Publication number
EP3980389A4
EP3980389A4 EP19931520.1A EP19931520A EP3980389A4 EP 3980389 A4 EP3980389 A4 EP 3980389A4 EP 19931520 A EP19931520 A EP 19931520A EP 3980389 A4 EP3980389 A4 EP 3980389A4
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EP
European Patent Office
Prior art keywords
green body
body composition
materials prepared
functional gradient
gradient materials
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19931520.1A
Other languages
German (de)
French (fr)
Other versions
EP3980389A1 (en
Inventor
Venkata Sundeep SEESALA
Santanu DHARA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Indian Institute of Technology Kharagpur
Original Assignee
Indian Institute of Technology Kharagpur
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Publication date
Application filed by Indian Institute of Technology Kharagpur filed Critical Indian Institute of Technology Kharagpur
Publication of EP3980389A1 publication Critical patent/EP3980389A1/en
Publication of EP3980389A4 publication Critical patent/EP3980389A4/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/3094—Designing or manufacturing processes
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A—HUMAN NECESSITIES
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    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28—Materials for coating prostheses
    • A61L27/34—Macromolecular materials
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    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
    • A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
    • A61L27/446—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with other specific inorganic fillers other than those covered by A61L27/443 or A61L27/46
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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    • B22F1/107—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/0615—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/3654—Connections of heads directly to shafts
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    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
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    • C04B2235/602—Making the green bodies or pre-forms by moulding
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    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6028—Shaping around a core which is removed later
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C04B2235/775—Products showing a density-gradient

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
EP19931520.1A 2019-06-05 2019-11-04 A green body composition and functional gradient materials prepared thereof Pending EP3980389A4 (en)

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IN201931022298 2019-06-05
PCT/IB2019/059435 WO2020245645A1 (en) 2019-06-05 2019-11-04 A green body composition and functional gradient materials prepared thereof

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CN114129771B (en) * 2021-11-03 2022-07-12 中国科学院上海硅酸盐研究所 Flexible biological ceramic scaffold imitating spongy spicule microstructure and preparation method and application thereof
CN114276145B (en) * 2021-11-24 2022-09-13 吉林大学 3D printing preparation method and device for heterogeneous bidirectional gradient aperture porous ceramic
CN114213021B (en) * 2021-12-23 2024-03-19 温州医科大学附属口腔医院 Gradient bionic dental ceramic
CN114560696B (en) * 2022-02-28 2023-04-14 跃美生物科技(苏州)有限公司 Preparation method of double-layer implant
CN115054388B (en) * 2022-07-05 2024-04-02 北京大学口腔医学院 Functional guide individual bionic porous pure tantalum dental implant and preparation method thereof
CN115634311B (en) * 2022-09-27 2024-07-02 润原生物科技(苏州)有限公司 Multi-structure cartilage repair implant and preparation method thereof
US20240247385A1 (en) * 2023-01-23 2024-07-25 Sungreenh2 Pte. Ltd. Electrolyser system and method of electrode manufacture
CN116275117A (en) * 2023-03-30 2023-06-23 吉林大学 Preparation method of porous artificial bone with adjustable pore structure and porous artificial bone

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US6344078B1 (en) * 1999-05-27 2002-02-05 Corning Incorporated Binder system for honeycomb ceramic bodies and a method for producing said honeycomb bodies
US20190016904A1 (en) * 2016-05-13 2019-01-17 NanoCore Technologies Sinterable metal paste for use in additive manufacturing

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DE10019447A1 (en) 2000-04-19 2001-10-25 Basf Ag An inorganic material binder useful for preparation of metallic and ceramic molded bodies removable in two stages without residue, giving green body and metallic or ceramic molded bodies devoid of pores and cracks
CN100419105C (en) 2005-02-04 2008-09-17 李北 Metal ceramic material and formation technology
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US20100279007A1 (en) * 2007-08-14 2010-11-04 The Penn State Research Foundation 3-D Printing of near net shape products
KR20120099696A (en) * 2009-10-28 2012-09-11 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Dental implant mill blank articles and methods of making those
CA2900728C (en) 2013-02-11 2021-07-27 National Research Council Of Canada Metal matrix composite and method of forming
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US10022792B2 (en) * 2014-11-13 2018-07-17 The Indian Institute of Technology Process of dough forming of polymer-metal blend suitable for shape forming
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US6030564A (en) * 1997-06-26 2000-02-29 Rohm And Haas Company Process for preparing green bodies
US6344078B1 (en) * 1999-05-27 2002-02-05 Corning Incorporated Binder system for honeycomb ceramic bodies and a method for producing said honeycomb bodies
US20190016904A1 (en) * 2016-05-13 2019-01-17 NanoCore Technologies Sinterable metal paste for use in additive manufacturing

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See also references of WO2020245645A1 *

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