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公开(公告)号：US20160333165A1
公开(公告)日：2016-11-17
申请号：US15108921
申请日：2015-01-09
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Roland Bayer , Scott T. Matteucci , Aleksander J. Pyzik , Sharon Allen , Mary Anne Leugers , Daniel L. Dermody , Robert S. Moglia
CPC classification number: C08J11/08 , B29C64/35 , B29C64/40 , B33Y40/00 , B33Y70/00 , C08J2301/26 , Y02W30/701
Abstract: The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles.
Abstract translation: 本发明涉及用于回收在添加剂制造过程中使用的支撑材料的方法。 该方法包括将由水溶性载体聚合物和不溶性材料组成的前体添加剂制品暴露于水中。 水溶性载体聚合物溶于水中。 然后将剩下的物品从水中取出。 溶解的水溶性聚合物从水中沉淀出来。 将沉淀的聚合物与水分离，并除去任何剩余的水以回收水溶性载体聚合物。 然后可以将回收的水溶性载体聚合物再次用于制备另外的添加剂制品。
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公开(公告)号：US10259921B2
公开(公告)日：2019-04-16
申请号：US15106637
申请日：2015-01-09
Applicant: Dow Global Technologies LLC
Inventor： Roland Bayer , Aleksander J. Pyzik , Sharon Allen
IPC: D01F2/28 , B29C64/40 , B33Y10/00 , B33Y30/00 , B33Y80/00 , B33Y70/00 , C08J7/04 , C08B11/193 , B29K55/02 , B29K67/00 , B29K69/00
Abstract: A three-dimensionally printed article comprises a build material and a support material, the support material comprising a hydroxypropyl methylcellulose having a DS of at least 1.0 and an MS of at least 0.6, wherein DS is the degree of substitution of methoxyl groups and MS is the molar substitution of hydroxypropoxyl groups. The support material can be removed from the build material by contacting the support material with water.
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公开(公告)号：US10100168B2
公开(公告)日：2018-10-16
申请号：US15108921
申请日：2015-01-09
Applicant: Dow Global Technologies LLC
Inventor： Roland Bayer , Scott T. Matteucci , Aleksander J. Pyzik , Sharon Allen , Mary Anne Leugers , Daniel L. Dermody , Robert S. Moglia
Abstract: The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles.
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公开(公告)号：US20170022341A1
公开(公告)日：2017-01-26
申请号：US15106637
申请日：2015-01-09
Applicant: Dow Global Technologies LLC
Inventor： Roland Bayer , Aleksander J. Pyzik , Sharon Allen
CPC classification number: C08J7/042 , B29C64/40 , B29K2055/02 , B29K2067/046 , B29K2069/00 , B33Y10/00 , B33Y30/00 , B33Y70/00 , B33Y80/00 , C08B11/193 , C08J2301/28 , C08J2455/02 , C08J2467/04 , D01F2/28
Abstract: A three-dimensionally printed article comprises a build material and a support material, the support material comprising a hydroxypropyl methylcellulose having a DS of at least 1.0 and an MS of at least 0.6, wherein DS is the degree of substitution of methoxyl groups and MS is the molar substitution of hydroxypropoxyl groups. The support material can be removed from the build material by contacting the support material with water.
Abstract translation: 三维打印制品包括构建材料和载体材料，载体材料包含DS至少为1.0且MS为至少0.6的羟丙基甲基纤维素，其中DS为甲氧基的取代度，MS为 羟丙氧基的摩尔取代。 支撑材料可以通过使支撑材料与水接触而从建筑材料中去除。
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公开(公告)号：US11426924B2
公开(公告)日：2022-08-30
申请号：US16312370
申请日：2017-06-26
Applicant: Dow Global Technologies LLC
Inventor： Craig F. Gorin , Aleksander J. Pyzik , Sanjay C. Solanki , Sharon Allen , Daniel P. Sophiea , Niranjan Malvadkar , Daniel L. Dermody
IPC: B29C64/118 , B33Y80/00 , B33Y70/00 , B33Y10/00 , B29C64/106 , C08G18/12 , B29K101/10 , B29K75/00
Abstract: An additive manufactured article is comprised of at least two adhered layers of extrudates (120) comprised of a thermoset material having therein a phase change material, wherein the phase change material undergoes a phase change at a temperature less than where the thermoset material decomposes. The article may be made by dispensing a mixture comprised of an organic reactive material and phase change material forming extrudates that are 3D printed into an article having multiple layers of extrudates bound together and then allowing the organic reactive material to react forming a thermoset material having therein the phase change material to form the additive manufactured article. The shape of the article may be changed by heating to a temperature above the temperature where the phase change material undergoes a phase change while applying a force and then cooling below the phase change temperature. Likewise, the original shape may be returned by merely heating above the phase change temperature and then cooling in the absence of a force being applied.
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Patent Agency Ranking
公开(公告)号：US20200247041A1
公开(公告)日：2020-08-06
申请号：US15770006
申请日：2016-10-18
Applicant: Dow Global Technologies LLC
Inventor： Joshua M. Katzenstein , Robert S. Moglia , Mary Anne Leugers , Aleksander J. Pyzik , Scott T. Matteucci , Sharon Allen , Daniel L. Dermody , Roland Bayer
IPC: B29C64/153
Abstract: A method of selective sintering additive manufacturing comprises employing a powder comprising composite particulates comprising a first thermoplastic polymer and a second thermoplastic polymer interspersed with each other. In a particular embodiment, the first thermoplastic polymer and second thermoplastic polymer have differing absorbance of the irradiation used to sinter the particles when performing the additive manufacturing method. The first and second thermoplastic polymer may be continuously intertwined in within the particles or one of the polymers may be a discontinuously dispersed in a continuous matrix of the other polymer.
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公开(公告)号：US20190184628A1
公开(公告)日：2019-06-20
申请号：US16099571
申请日：2017-05-19
Applicant: Dow Global Technologies LLC
Inventor： Craig F. Gorin , Janet M. Goss , Aleksander J. Pyzik , Sharon Allen , Sanjay C. Solanki , Daniel P. Sophiea
IPC: B29C64/118 , B29C64/209 , C08G18/12 , C08G18/30 , C08G18/67 , C08K3/013
CPC classification number: B29C64/118 , B29C64/209 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , C08G18/10 , C08G18/12 , C08G18/307 , C08G18/48 , C08G18/672 , C08K3/013
Abstract: An additive elastomeric manufactured part having improved surface finish is made by repeatedly extruding through a nozzle to build up layers of a material comprised of a prepolymer comprised of an isocyanate terminated prepolymer and a filler in an amount such that the material has a shear storage modulus G′ of 100,000 to 300,000 Pa measured at an oscillation rate of 1 Hz and a relaxation time of 20 seconds to 360 seconds. It has been discovered that the particular material having these rheological properties is able to improve the surface finish of the additive manufactured part without slumping and is believed to be due to surface flow of material into valleys between the extrudates as they are being built up.
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公开(公告)号：US20180222111A1
公开(公告)日：2018-08-09
申请号：US15747792
申请日：2016-07-20
Applicant: Dow Global Technologies LLC
Inventor： Roland Bayer , Aleksander J. Pyzik , Sharon Allen , Scott T. Matteucci
IPC: B29C64/118 , B29C64/40 , C08L1/28 , C08J11/08
CPC classification number: B29C64/118 , B29C64/106 , B29C64/40 , B29K2995/0056 , B33Y70/00 , C08J11/08 , C08L1/28
Abstract: A method of additive manufacturing is comprised of providing a material comprised of a ethyl cellulose polymer having an ethoxy content of 43% to 52% by mass and a plasticizer. The material is heated and dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base and successive layers of the material are adhered on the initial layer to form an additive manufactured part by repeating the aforementioned steps. The article formed of the ethyl cellulose polymer may be used in many applications such as those related to the pharmaceutical and food industries.
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公开(公告)号：US20180147785A1
公开(公告)日：2018-05-31
申请号：US15580206
申请日：2016-06-02
Applicant: Dow Global Technologies LLC
Inventor： Roland Bayer , Anette Wagner , Aleksander J. Pyzik , Sharon Allen
IPC: B29C64/40 , B33Y70/00 , C09D101/28 , B29K1/00 , B33Y10/00 , B29K101/12
CPC classification number: B29C64/40 , B29K2001/08 , B29K2101/12 , B29K2995/0062 , B33Y10/00 , B33Y70/00 , C08L1/284 , C09D101/284
Abstract: A three-dimensionally printed article is comprised of a hydroxyethyl methylcellulose (HEMC) having a DS of 1.7 to 2.5 and an MS of at least 0.5, wherein DS is the degree of substitution of methoxyl groups and MS is the molar substitution of hydroxyethoxyl groups. The HEMC may advantageously be used as a support material when making a three-dimensionally printed article using a build material such as a different thermoplastic polymer such as a poly(acrylonitrile-butadiene-styrene), polylactic acid, polyethylene and polyprophylene. When the HEMC is a support material it may be easily removed from the build material by contacting the three dimensionally printed article with water, which may be at ambient temperatures and a pH that is neutral or close to neutral.
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公开(公告)号：US11697242B2
公开(公告)日：2023-07-11
申请号：US15747792
申请日：2016-07-20
Applicant: Dow Global Technologies LLC
Inventor： Roland Bayer , Aleksander J. Pyzik , Sharon Allen , Scott T. Matteucci
CPC classification number: B29C64/118 , B29C64/40 , B33Y70/00 , C08J11/08 , C08L1/28 , B29K2995/0056 , B33Y70/10
Abstract: A method of additive manufacturing is comprised of providing a material comprised of a ethyl cellulose polymer having an ethoxy content of 43% to 52% by mass and a plasticizer. The material is heated and dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base and successive layers of the material are adhered on the initial layer to form an additive manufactured part by repeating the aforementioned steps. The article formed of the ethyl cellulose polymer may be used in many applications such as those related to the pharmaceutical and food industries.
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