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公开(公告)号：US11939480B2
公开(公告)日：2024-03-26
申请号：US17283819
申请日：2019-10-10
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: C09D11/107 , B29C64/118 , B29C64/40 , B29K33/00 , B29K105/00 , B33Y10/00 , B33Y70/00 , C09D11/54
CPC classification number: C09D11/107 , B29C64/40 , B33Y70/00 , C09D11/54 , B29C64/118 , B29K2033/12 , B29K2105/0085 , B29K2995/0062 , B33Y10/00
Abstract: A sulfonated water-dispersible thermoplastic copolymer material for use as a support material in an additive manufacturing process is made by a method comprising providing a selected thermoplastic copolymer having an acid or an anhydride group; esterifying the acid group of the selected thermoplastic copolymer with a hydroxyl-functionalized sulfonate salt, or amidizing the acid group of the selected thermoplastic copolymer with an amine sulfonate salt, or imidizing the anhydride group of the selected thermoplastic copolymer with an amine sulfonate salt. The esterification, the amidization or the imidization results in a sulfonated water thermoplastic dispersible copolymer having a glass transition temperature suitable to provide an effective support during the additive manufacturing process and wherein the sulfonated water-dispersible thermoplastic copolymer will disperse in tap water in less than 1 hour.
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公开(公告)号：US12157800B2
公开(公告)日：2024-12-03
申请号：US17717570
申请日：2022-04-11
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: C08J3/24 , B29C48/05 , B29C48/80 , B29C48/88 , B29C64/40 , B29C71/00 , B29K81/00 , C08J3/07 , C08J3/12 , C08J3/14
Abstract: A method of processing a water-dispersible, polymer-based material in a bath of a water-based solution includes providing a molten water-dispersible polymer material having monovalent cations. The water-dispersible polymer is introduced into a water bath comprising multivalent salt dissociated in the water bath into multivalent cations and anions. The water-dispersible polymer is retained within the water bath with the dissociated multivalent cations to quench the water-dispersible, polymer-based material while the monovalent cations proximate a surface of the water-dispersible polymer are exchanged with multivalent cations to form a barrier that temporarily resists dispersion of the water-dispersible, polymer-based material within the water bath. The method includes removing the water-dispersible polymer from water bath after the exchange step.
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公开(公告)号：US11878461B2
公开(公告)日：2024-01-23
申请号：US17290852
申请日：2019-11-04
Applicant: Stratasys, Inc.
Inventor： William J. Swanson , William R. Priedeman, Jr.
CPC classification number: B29C64/118 , D01F8/12 , D01F8/14 , B29K2021/003 , B29K2077/00 , B29K2995/0046 , B33Y10/00 , B33Y70/10
Abstract: A filament for use in an extrusion-based additive manufacturing system includes an elastomeric core and a harder, non-elastomeric shell. The core compositionally comprising an elastomeric core material having a flexural modulus of less than 31,000 psi and a durometer of less than 80 Shore. The shell overlays the core portion and compositionally comprises a non-elastomeric thermoplastic shell material that is substantially miscible with the elastomeric core material, wherein the core material and the shell material have the same monomer chemistry. The non-elastomeric thermoplastic shell material has a flexural modulus that is greater than the flexural modulus of the elastomeric core material by at least a factor of five, wherein the shell provides sufficient strength or stiffness to the filament such that filament can be utilized as a feedstock in the extrusion-based additive manufacturing system.
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Patent Agency Ranking
公开(公告)号：US11220062B2
公开(公告)日：2022-01-11
申请号：US16643275
申请日：2018-10-10
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: B29C64/40 , C08F212/14 , B33Y10/00 , B33Y70/00
Abstract: A water-dispersible addition-type sulfonated thermoplastic copolymer material for use as a consumable feedstock additive manufacturing, wherein the water-dispersible thermoplastic copolymer is a reaction product of an addition-type reaction of a metal sulfonated monomer, the water-dispersible sulfonated thermoplastic copolymer being dispersible in tap water in less than one hour.
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公开(公告)号：US11186679B2
公开(公告)日：2021-11-30
申请号：US15737579
申请日：2016-06-17
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: B29C64/118 , C08G63/688 , C08G69/42 , B33Y70/00 , B33Y30/00 , G03G15/22 , G03G15/16 , C08G18/38 , C08G18/08 , C08J5/00 , C08J11/06 , G03G9/087 , B29C64/40 , B29K81/00
Abstract: A water dispersible sulfopolymer for use as a material in the layer-wise additive manufacture of a 3D part made of a non water dispersible polymer wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the 3D part made of the non water dispersible polymer.
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公开(公告)号：US10982043B2
公开(公告)日：2021-04-20
申请号：US15729410
申请日：2017-10-10
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: C08G63/688 , C08G69/42 , B33Y70/00 , B33Y30/00 , G03G15/22 , G03G15/16 , C08G18/38 , C08G18/08 , B29C64/118 , C08J5/00 , C08J11/06 , G03G9/087 , B29C64/40 , B29K81/00
Abstract: A method of recycling and reusing a tap water-soluble sulfonated polymer material from a structural component made using an additive manufacturing process comprises dissolving the structural component in water to disperse the sulfonated polymer material into the water. The sulfonated polymer material is precipitated from the water and recovered; then dried and reformed into a form suitable for subsequent use as a consumable feedstock in a subsequent additive manufacturing process.
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公开(公告)号：US20180179332A1
公开(公告)日：2018-06-28
申请号：US15737579
申请日：2016-06-17
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: C08G63/688 , C08G69/42 , C08J5/00 , B29C64/40 , B33Y70/00
CPC classification number: C08G63/6886 , B29C64/106 , B29C64/40 , B29K2081/00 , B29K2995/0062 , B33Y30/00 , B33Y70/00 , C08G18/0828 , C08G18/3855 , C08G69/42 , C08J5/00 , C08J11/06 , C08J2300/22 , C08J2355/02 , C08J2367/02 , C08J2367/04 , C08J2369/00 , C08J2377/06 , C08J2467/02 , C08J2477/06 , G03G9/08755 , G03G9/08766 , G03G15/1625 , G03G15/224 , G03G2215/1695
Abstract: A water dispersible sulfopolymer for use as a material in the layer-wise additive manufacture of a 3D part made of a non water dispersible polymer wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the 3D part made of the non water dispersible polymer.
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8.发明公开公开(公告)号：US20240191087A1
公开(公告)日：2024-06-13
申请号：US18583995
申请日：2024-02-22
Applicant: Stratasys, Inc.
Inventor： William R. Priedeman, Jr.
IPC: C09D11/107 , B29C64/118 , B29C64/40 , B29K33/00 , B29K105/00 , B33Y10/00 , B33Y70/00 , C09D11/54
CPC classification number: C09D11/107 , B29C64/40 , B33Y70/00 , C09D11/54 , B29C64/118 , B29K2033/12 , B29K2105/0085 , B29K2995/0062 , B33Y10/00
Abstract: A sulfonated water-dispersible thermoplastic copolymer material for use as a support material in an additive manufacturing process is made by a method comprising providing a selected thermoplastic copolymer having an acid or an anhydride group; esterifying the acid group of the selected thermoplastic copolymer with a hydroxyl-functionalized sulfonate salt, or amidizing the acid group of the selected thermoplastic copolymer with an amine sulfonate salt, or imidizing the anhydride group of the selected thermoplastic copolymer with an amine sulfonate salt. The esterification, the amidization or the imidization results in a sulfonated water thermoplastic dispersible copolymer having a glass transition temperature suitable to provide an effective support during the additive manufacturing process and wherein the sulfonated water-dispersible thermoplastic copolymer will disperse in tap water in less than 1 hour.
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