EP2416943A1 - Procédé de fabrication d'un objet tridimensionnel au moyen d'une poudre plastique présentant des propriétés antimicrobiennes et poudre plastique présentant des propriétés antimicrobiennes destinée à un tel procédé - Google Patents

Procédé de fabrication d'un objet tridimensionnel au moyen d'une poudre plastique présentant des propriétés antimicrobiennes et poudre plastique présentant des propriétés antimicrobiennes destinée à un tel procédé

Info

Publication number
EP2416943A1
EP2416943A1 EP10713425A EP10713425A EP2416943A1 EP 2416943 A1 EP2416943 A1 EP 2416943A1 EP 10713425 A EP10713425 A EP 10713425A EP 10713425 A EP10713425 A EP 10713425A EP 2416943 A1 EP2416943 A1 EP 2416943A1
Authority
EP
European Patent Office
Prior art keywords
powder
plastic powder
antimicrobial
antimicrobial properties
additive
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.)
Ceased
Application number
EP10713425A
Other languages
German (de)
English (en)
Inventor
Stoyan Frangov
Peter Walz
Gregory Filou
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.)
EOS GmbH
Arkema France SA
Original Assignee
EOS GmbH
Arkema France SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EOS GmbH, Arkema France SA filed Critical EOS GmbH
Publication of EP2416943A1 publication Critical patent/EP2416943A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties

Definitions

  • the invention relates to a process for the production of a three-dimensional object, wherein the plastic powder having antimicrobial properties is used, and the invention further relates to such a synthetic powder having antimicrobial properties.
  • EP 1 911 468 A2 In the field of the production of objects by selective laser sintering or selective laser melting, it is known from EP 1 911 468 A2 to produce an antimicrobial implant in such a way that a silver powder is mixed macroscopically with a biocompatible powder, for example titanium powder, and the mixture is then mixed Substrate is applied. The layer of the mixture is then selectively melted under the action of a laser. The entire implant can be manufactured in layers, or a finished implant can be provided in this way with an antimicrobial coating.
  • EP 0 911 142 B1 discloses a powder of polyamide 12 and EP 1 431 595 a powder of polyamide 11, each of which is suitable for laser sintering.
  • the method has the advantage that the manufactured objects automatically have surfaces which have an antimicrobial effect after production.
  • the scope of the laser sintering of plastic material can thereby widen. It is thus possible, for example, to produce articles which are normally produced by injection molding and which food sector and in the medical field application now produce by laser sintering.
  • Fig. 1 is a schematic representation of a laser sintering system
  • FIG. 2 is a photomicrograph of a layer of solidified plastic powder according to an embodiment
  • Fig. 3a micrographs of sections of 20 ⁇ m thickness of a laser sintered part which has been sintered with another plastic powder according to the invention
  • Fig. 3b micrographs of sections of 20 ⁇ m thickness of a laser sintered part, with another
  • Plastic powder according to the invention ⁇ t, - '" r ' ⁇ ⁇ - ⁇
  • the laser sintering device shown in FIG. 1 has a container 1 which is open at the top and has a carrier 2 which can be moved in the vertical direction and carries the object 3 to be formed and defines a construction field.
  • the carrier 2 is adjusted in the vertical direction so that each to be solidified Layer of the object is located in a working level 4.
  • a coater 5 for applying the solidified by electromagnetic radiation powdery building material 3a is provided.
  • the coater 5 is supplied with the building material 3a from a reservoir 6.
  • the apparatus further comprises a laser 7, which generates a laser beam 7a, which is directed by a deflector 8 on a coupling window 9 and from this into the process chamber 10 and is focused at a predetermined point in the working plane 4.
  • control unit 11 via which the components of the device are controlled in a coordinated manner for carrying out the building process.
  • the apparatus may also include a heater 12 which heats a layer of applied powder to a working temperature below the melting temperature of the building material.
  • a heater 12 which heats a layer of applied powder to a working temperature below the melting temperature of the building material.
  • Such a heater is particularly useful in the use of plastic powder as organizingmate- rial.
  • the per se known laser sintering method is carried out so that the powder 3a is applied from the reservoir 6 layer by layer on the support or a previously solidified layer and solidified with the laser at the cross-section of the object corresponding locations in each layer.
  • the building material used is a powder which has antimicrobial properties.
  • each individual powder has the antimicrobial property.
  • antimicrobial property is meant that the multiplication of microbes, with the powder or with the object formed from it come in contact, prevented or at least inhibited, and / or the microbes are killed.
  • the antimicrobial property comprises the above-described action against all microorganisms, in particular bacteria and viruses.
  • the powdery building material consists of a plastic powder, in particular a polymer as base material, preferably of a polyamide, in particular of polyamide 12 or polyamide 11.
  • plastic powders are also conceivable, for example polystyrene or polyarylene (PAEK) or polyetheretherketone (PEEK) ,
  • the base material is provided with an additive which effects the antimicrobial property.
  • the antimicrobial additive contains substances with antimicrobial activity. Such substances may be, for example, precious metals, in particular silver.
  • the additive is distributed so homogeneously in the powder that it is present homogeneously in each powder grain. Each powder grain therefore has antibacterial properties.
  • the additive is in the form of silver-containing components, such as pure silver, silver nitrate and other salts of silver, silver ions and other additives.
  • the antimicrobial additive is present in a range of about 0.05 to about 5 weight percent, preferably in a range of about 0.1 to about 2.0 weight percent.
  • the additive is not limited to a single component, but may include several components.
  • Tmi / Xmi is the melting temperature and the crystalline fraction at the first heating in a DSC measurement.
  • T m2 and X m2 are the analog values when the sample is remelted a second time.
  • T c / Xc are the crystallization temperature determined by the DSC measurement and the crystalline portion of the sample
  • Table 2 and Table 3 show the grain size distribution of the above powders.
  • D50 is about 30-40 um Table 3
  • D50 is approx. 110-130 ⁇ m
  • the D50 value means that at least 50% of the powder grains have a size less than or equal to the specified value.
  • FIG. 2a shows the micrograph of a laser sintered part from Ri san ® Active ES 7580 SA. It can be seen that the layers are well melted.
  • a mixture of Rilsan ® Active was it used 7580 SA and Rilsan ® Active T 7547 SA.
  • the two powders were homogeneously mixed with a commercially available concrete mixer. The mixing time was about 20 minutes.
  • a first mixture the powders Rilsan ® Active it contained 7580 SA / Rilsan ® Active T 7547 SA in a mixing ratio of 80/20 wt.%. In another example, the mixing ratio was 90/10 wt%.
  • Figures 3a) and 3b) show sections of 20 microns thickness by laser-sintered components from the mixtures Rilsan ® Active ES 7580 SA / Rilsan ® Active G7547 SA from 80/20 wt.% Fig. 3a)) by weight, and 90/10.% ( Fig. 3b)). They have a homogeneous distribution of the proportion of Rilsan ® Active T 7547 SA in a matrix of Rilsan ® Active ES 7580 SA on what is seen in the lighter areas compared to the darker environment.
  • Table 4 shows the mechanical properties of the components thus obtained.
  • the laser sintered parts produced in this way had the mechanical properties required for use.
  • the surfaces and porosity of the inner surfaces of the parts thus produced have an antimicrobial property.
  • the presence of the antimicrobial additive does not exclude that other additives in any form may be added to the powder.
  • the powdery plastic material may also contain mixtures of different plastics, in particular of different polymers, preferably with the same chemical base, of which all components of the mixture or only one component may contain the antimicrobial additive.
  • the method is not limited to the laser sintering described above.
  • an energy source instead of a laser, an electron beam or an extended source of light or heat can be used with which the powder is melted and solidified.
  • an extensive source of light or heat the partial solidification of a layer takes place, for example, via masks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Composite Materials (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)

Abstract

L'invention concerne un procédé selon lequel des objets tridimensionnels sont fabriqués par solidification par couches d'un matériau plastique pulvérulent (3a) à l'aide d'un rayonnement électromagnétique ou particulaire (7a), le matériau plastique pulvérulent (3a) présentant une propriété antimicrobienne de telle manière que les objets (3) fabriqués comprennent des surfaces présentant un effet antimicrobien. La propriété antimicrobienne est obtenue à l'aide d'additifs présents dans chaque grain de la poudre. De tels additifs peuvent par exemple être des métaux précieux tels que l'argent. Les objets fabriqués sont notamment employés dans l'industrie alimentaire et dans la technique médicale.
EP10713425A 2009-04-08 2010-04-01 Procédé de fabrication d'un objet tridimensionnel au moyen d'une poudre plastique présentant des propriétés antimicrobiennes et poudre plastique présentant des propriétés antimicrobiennes destinée à un tel procédé Ceased EP2416943A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009016881A DE102009016881A1 (de) 2009-04-08 2009-04-08 Verfahren zum Herstellen eines dreidimensionalen Objekts unter Verwendung eines Kunststoffpulvers mit antimikrobiellen Eigenschaften und Kunststoffpulver mit antimikrobiellen Eigenschaften für ein derartiges Verfahren
PCT/EP2010/002120 WO2010115587A1 (fr) 2009-04-08 2010-04-01 Procédé de fabrication d'un objet tridimensionnel au moyen d'une poudre plastique présentant des propriétés antimicrobiennes et poudre plastique présentant des propriétés antimicrobiennes destinée à un tel procédé

Publications (1)

Publication Number Publication Date
EP2416943A1 true EP2416943A1 (fr) 2012-02-15

Family

ID=42562446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10713425A Ceased EP2416943A1 (fr) 2009-04-08 2010-04-01 Procédé de fabrication d'un objet tridimensionnel au moyen d'une poudre plastique présentant des propriétés antimicrobiennes et poudre plastique présentant des propriétés antimicrobiennes destinée à un tel procédé

Country Status (8)

Country Link
US (2) US20100270713A1 (fr)
EP (1) EP2416943A1 (fr)
JP (1) JP2012523325A (fr)
CN (1) CN102076483A (fr)
BR (1) BRPI1003630A2 (fr)
DE (1) DE102009016881A1 (fr)
RU (1) RU2011101367A (fr)
WO (1) WO2010115587A1 (fr)

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EP3957664A1 (fr) 2010-09-27 2022-02-23 Arkema Inc. Poudres de polymères traitées thermiquement
FR2968664B1 (fr) * 2010-12-10 2014-02-14 Rhodia Operations Realisation d'article par fusion selective de couches de poudre de polymere
US8916085B2 (en) 2011-06-02 2014-12-23 A. Raymond Et Cie Process of making a component with a passageway
CN103717378B (zh) 2011-06-02 2016-04-27 A·雷蒙德公司 通过三维印刷制造的紧固件
US8883064B2 (en) 2011-06-02 2014-11-11 A. Raymond & Cie Method of making printed fastener
EP2969486B1 (fr) 2013-03-15 2018-05-09 3D Systems, Inc. Distribution de poudre améliorée pour systèmes de frittage par laser
DE102013212803A1 (de) * 2013-07-01 2015-01-08 Eos Gmbh Electro Optical Systems Verfahren zum Herstellen eines dreidimensionalen Objekts
CN106470823B (zh) * 2014-06-27 2020-05-26 福吉米株式会社 用于结构体的形成的形成用材料和形成方法
US9987051B2 (en) 2015-01-27 2018-06-05 K2M, Inc. Interbody spacer
US10028841B2 (en) 2015-01-27 2018-07-24 K2M, Inc. Interbody spacer
CN105820561B (zh) * 2016-04-22 2018-09-18 湖南华曙高科技有限责任公司 一种用于制造三维物体的塑料粉末
JP7466267B2 (ja) 2017-05-25 2024-04-12 ストライカー・ユーロピアン・オペレイションズ・ホールディングス・リミテッド・ライアビリティ・カンパニー 固定特徴部及び挿入特徴部が一体化された融合ケージ
US11006981B2 (en) 2017-07-07 2021-05-18 K2M, Inc. Surgical implant and methods of additive manufacturing
JP7172134B2 (ja) * 2018-05-23 2022-11-16 コニカミノルタ株式会社 粉末材料、およびこれを用いた立体造形物の製造方法

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US20080051493A1 (en) * 2006-08-25 2008-02-28 Ag1On Technologies, Inc. Antimicrobial powder coatings and method
WO2009020130A1 (fr) * 2007-08-08 2009-02-12 Techno Polymer Co., Ltd. Poudre frittable au laser et produit façonné de celle-ci

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DE19747309B4 (de) 1997-10-27 2007-11-15 Degussa Gmbh Verwendung eines Polyamids 12 für selektives Laser-Sintern
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US20080051493A1 (en) * 2006-08-25 2008-02-28 Ag1On Technologies, Inc. Antimicrobial powder coatings and method
WO2009020130A1 (fr) * 2007-08-08 2009-02-12 Techno Polymer Co., Ltd. Poudre frittable au laser et produit façonné de celle-ci
EP2177557A1 (fr) * 2007-08-08 2010-04-21 Techno Polymer Co., Ltd. Poudre frittable au laser et produit façonné de celle-ci

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Also Published As

Publication number Publication date
RU2011101367A (ru) 2012-07-20
CN102076483A (zh) 2011-05-25
JP2012523325A (ja) 2012-10-04
BRPI1003630A2 (pt) 2016-02-23
US20100270713A1 (en) 2010-10-28
WO2010115587A1 (fr) 2010-10-14
US20130273131A1 (en) 2013-10-17
DE102009016881A1 (de) 2010-10-14

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