JP2021004361A - 選択的焼結法用のポリアミド粉末 - Google Patents
選択的焼結法用のポリアミド粉末 Download PDFInfo
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- JP2021004361A JP2021004361A JP2020150047A JP2020150047A JP2021004361A JP 2021004361 A JP2021004361 A JP 2021004361A JP 2020150047 A JP2020150047 A JP 2020150047A JP 2020150047 A JP2020150047 A JP 2020150047A JP 2021004361 A JP2021004361 A JP 2021004361A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63468—Polyamides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- 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
-
- 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
- B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/28—Preparatory processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/14—Powdering or granulating by precipitation from solutions
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Polyamides (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims (16)
- 選択的吸収焼結(SAS)または選択的抑制焼結(SIS)用のポリアミド粉末であって、該ポリアミドが、1.8〜2のISO 307による溶液粘度と、該ポリアミドが空気中で20h、その溶融温度を20℃下回る温度に暴露される際に0%〜25%、好ましくは5%〜15%の溶液粘度の増加とを有することを特徴とする、ポリアミド粉末。
- 該ポリアミド中で、過剰のアミン末端基または過剰のカルボン酸末端基のいずれかが存在することを特徴とする、請求項1記載のポリアミド粉末。
- 該過剰がジアミンまたはジカルボン酸、好ましくはジカルボン酸により達成されることを特徴とする、請求項2記載のポリアミド粉末。
- 該過剰が20〜60mmol/kgポリアミド粉末であることを特徴とする、請求項2または3記載のポリアミド粉末。
- 該粉末が、開いたメソ細孔を有し、かつ該メソ細孔の累積細孔容積分布が、DIN 66134により測定して、少なくとも0.01cm3/gであることを特徴とする、請求項1から4までのいずれか1項記載のポリアミド粉末。
- 該ポリアミド粉末が、1000pL/g〜30000pL/gの体積の液体を吸収することを特徴とする、請求項1から5までのいずれか1項記載のポリアミド粉末。
- 該ポリアミド粉末のBET表面積が、DIN ISO 9277により測定して、少なくとも7m2/g、好ましくは10m2/g〜30m2/gを有することを特徴とする、請求項1から6までのいずれか1項記載のポリアミド粉末。
- 該ポリアミド粉末の質量平均粒径d50が、レーザー回折により測定して、100μm以下、好ましくは10μm〜80μmであることを特徴とする、請求項1から7までのいずれか1項記載のポリアミド粉末。
- かさ密度が、DIN 53466に測定して300g/L〜600g/Lであることを特徴とする、請求項1から8までのいずれか1項記載のポリアミド粉末。
- ウォッシュバーン式の使用による毛管上昇法およびオーウェンス、ウェント、ラベルおよびケルブレによる評価法に従って接触角測定により求められる、該粉末の表面エネルギーが、35mN/m以下、好ましくは25mN/m〜32mN/mであることを特徴とする、請求項1から9までのいずれか1項記載のポリアミド粉末。
- 該ポリアミド粉末が、沈殿プロセスにより得られることを特徴とする、請求項1から10までのいずれか1項記載のポリアミド粉末。
- a)モノマーを重合および/または重縮合してポリアミドを得る工程、
b)粉砕または再沈殿により粉末を製造する工程
を含む、請求項1から11までのいずれか1項記載のポリアミド粉末を製造する方法であって、
工程a)において、アミン末端基過剰の達成のためのジアミンまたはカルボン酸末端基過剰の達成のためのジカルボン酸を、調節剤として添加することを特徴とする、ポリアミド粉末の製造方法。 - 該ジアミンまたはジカルボン酸を、20〜60mmol/kg(該ポリアミド粉末の質量を基準とする)の過剰を達成する割合で添加する、請求項12記載の方法。
- 成形体を製造するためのSASまたはSIS法における、請求項1から11までのいずれか1項記載のポリアミド粉末の使用。
- 請求項1から11までのいずれか1項記載のポリアミド粉末から少なくとも部分的に得られる、成形体。
- SASまたはSIS法により成形体を製造する方法であって、請求項1から11までのいずれか1項記載のポリアミド粉末を使用することを特徴とする、成形体の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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DE102016219080.6 | 2016-09-30 | ||
DE102016219080.6A DE102016219080A1 (de) | 2016-09-30 | 2016-09-30 | Polyamidpulver für selektive Sinterverfahren |
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JP2017191544A Division JP7020846B2 (ja) | 2016-09-30 | 2017-09-29 | 選択的焼結法用のポリアミド粉末 |
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JP2017191544A Active JP7020846B2 (ja) | 2016-09-30 | 2017-09-29 | 選択的焼結法用のポリアミド粉末 |
JP2020150047A Pending JP2021004361A (ja) | 2016-09-30 | 2020-09-07 | 選択的焼結法用のポリアミド粉末 |
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US (2) | US11117837B2 (ja) |
EP (1) | EP3301125B1 (ja) |
JP (2) | JP7020846B2 (ja) |
CN (2) | CN115466412A (ja) |
DE (1) | DE102016219080A1 (ja) |
ES (1) | ES2951069T3 (ja) |
PL (1) | PL3301125T3 (ja) |
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EP3181615A1 (de) * | 2015-12-14 | 2017-06-21 | Evonik Degussa GmbH | Polymerpulver für powder bed fusion-verfahren |
DE102016219080A1 (de) * | 2016-09-30 | 2018-04-05 | Evonik Degussa Gmbh | Polyamidpulver für selektive Sinterverfahren |
ES2950359T3 (es) | 2016-09-30 | 2023-10-09 | Evonik Operations Gmbh | Polvo de poliamida para procedimientos de sinterización selectivos |
US11591494B2 (en) | 2019-03-18 | 2023-02-28 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing with epoxy and amine compounds |
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- 2017-09-29 US US15/720,433 patent/US11117837B2/en active Active
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ES2951069T3 (es) | 2023-10-17 |
JP7020846B2 (ja) | 2022-02-16 |
CN115466412A (zh) | 2022-12-13 |
US20210371346A1 (en) | 2021-12-02 |
PL3301125T3 (pl) | 2023-08-28 |
US11117837B2 (en) | 2021-09-14 |
EP3301125B1 (de) | 2023-05-10 |
DE102016219080A1 (de) | 2018-04-05 |
JP2018059092A (ja) | 2018-04-12 |
US20180093925A1 (en) | 2018-04-05 |
CN107880286A (zh) | 2018-04-06 |
EP3301125A1 (de) | 2018-04-04 |
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