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1. 发明申请

WO2020028013A1 FUSED FILAMENT FABRICATION MANUFACTURING METHOD AND POLYMER BLEND USED THEREIN 审中-公开
公开(公告)号：WO2020028013A1
公开(公告)日：2020-02-06
申请号：PCT/US2019/041645
申请日：2019-07-12
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： GORIN, Craig F. , BISWAS, Sanjib , ALLEN, Sharon , MATTEUCCI, Scott T. , DERMODY, Daniel L. , SINGH, Harpreet , PYZIK, Aleksander J.
IPC分类号： B33Y70/00 , C09D11/106 , C09D11/34 , B29C64/00 , B33Y10/00
摘要： A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.

2. 发明申请

WO2017205196A1 METHOD FOR IMPROVING THE SURFACE FINISH OF ADDITIVE MANUFACTURED ARTICLES 审中-公开
标题翻译：改进添加剂制造文章的表面光洁度的方法
公开(公告)号：WO2017205196A1
公开(公告)日：2017-11-30
申请号：PCT/US2017/033461
申请日：2017-05-19
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： GORIN, Craig F. , GOSS, Janet M. , PYZIK, Aleksander J. , ALLEN, Sharon , SOLANKI, Sanjay C. , SOPHIEA, Daniel P.
IPC分类号： C08G18/10 , C08G18/12 , C08G18/30 , C08G18/48 , B33Y70/00 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： 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.
摘要翻译：具有改进的表面光洁度的添加剂弹性体制造部件通过反复挤出通过喷嘴来制造，以形成由预聚物构成的材料层，所述预聚物包含异氰酸酯封端的预聚物和填料，该材料具有在1Hz的振荡速率和20秒至360秒的松弛时间下测量的100,000至300,000Pa的剪切储能模量G'。已经发现，具有这些流变性能的特定材料能够改善添加剂制造部件的表面光洁度而不会发生塌陷，并且据信这是由于当材料被构建时材料表面流动到挤出物之间的凹陷中造成的。 / p>

3. 发明申请

WO2017070061A1 SELECTIVE SINTERING ADDITIVE MANUFACTURING METHOD AND POWDER USED THEREIN 审中-公开
标题翻译：选择性烧结添加剂制造方法和其中使用的粉末
公开(公告)号：WO2017070061A1
公开(公告)日：2017-04-27
申请号：PCT/US2016/057434
申请日：2016-10-18
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： KATZENSTEIN, Joshua M. , MOGLIA, Robert S. , LEUGERS, Mary Anne , PYZIK, Aleksander J. , MATTEUCCI, Scott T. , ALLEN, Sharon , DERMODY, Daniel L. , BAYER, Roland
IPC分类号： B29C67/00 , B33Y70/00 , B33Y10/00
CPC分类号： B33Y10/00 , B29C64/153 , B29K2101/12 , B33Y70/00 , B33Y80/00
摘要： 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.
摘要翻译：选择性烧结添加剂制造的方法包括使用包含复合颗粒的粉末，所述复合颗粒包含相互散布的第一热塑性聚合物和第二热塑性聚合物。在一个具体实施方案中，第一热塑性聚合物和第二热塑性聚合物在进行增材制造方法时具有不同的用于烧结颗粒的辐照的吸收率。第一和第二热塑性聚合物可以连续缠结在颗粒内，或者一种聚合物可以不连续地分散在另一种聚合物的连续基质中。

4. 发明申请

WO2014088619A1 POROUS MULLITE BODIES HAVING IMPROVED THERMAL STABILITY 审中-公开
标题翻译：具有改进的热稳定性的多孔MULLITE体
公开(公告)号：WO2014088619A1
公开(公告)日：2014-06-12
申请号：PCT/US2013/029591
申请日：2013-03-07
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： MALANGA, Michael T. , O'BRIEN, James J. , PYZIK, Aleksander J. , SHINKEL, Nicholas M. , TODD, Clifford S. , VOSEJPKA, Paul C. , ZIEBARTH, Robin P.
IPC分类号： C04B35/185 , C04B35/50 , C04B35/565 , C04B35/584 , C04B35/597
CPC分类号： C04B35/185 , C04B35/565 , C04B35/584 , C04B35/64 , C04B2235/322 , C04B2235/3224 , C04B2235/3229 , C04B2235/3272 , C04B2235/46 , C04B2235/6565 , C04B2235/661 , C04B2235/72 , C04B2235/85 , C04B2235/96 , F01N3/021
摘要： A porous ceramic composition having improved thermal stability is comprised of ceramic grains bonded together by a grain boundary phase comprised of silica, rare earth element that is Eu, Gd, Nd or mixture thereof and oxygen and optionally yttrium, wherein the grain boundary phase has a amount of an alkali, an alkaline earth metal and a transition metal other than yttrium that is at most 2% by weight of the grain boundary phase.
摘要翻译：具有改善的热稳定性的多孔陶瓷组合物由通过由二氧化硅，作为Eu，Gd，Nd或其混合物的稀土元素和氧和任选的钇组成的晶界相结合在一起的陶瓷晶粒组成，其中晶界相具有碱，碱土金属和除钇以外的过渡金属的量相当于晶界相的2％以下。

5. 发明申请

WO2017095658A1 ADDITIVE MANUFACTURED CARBON MICHAEL ADDITION ARTICLES AND METHOD TO MAKE THEM 审中-公开
标题翻译：添加剂制造的碳纤维添加物品及其制造方法
公开(公告)号：WO2017095658A1
公开(公告)日：2017-06-08
申请号：PCT/US2016/062661
申请日：2016-11-18
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： GORIN, Craig F. , SOLANKI, Sanjay C. , JIN, Xin , PYZIK, Aleksander J. , RAO, Yuanqiao
IPC分类号： B29C67/00 , C08G61/12
CPC分类号： C08G61/12 , B29C64/106 , C08G2261/334 , C08G2261/42 , C08K3/04 , C08L65/00
摘要： An additive elastomeric manufactured part is comprised of extrudates comprised of a reaction product of a multifunctional Michael donor and multifunctional Michael acceptor and a rheological modifier. The additive elastomeric manufactured part may have a high elongation and resistance to heat. Said part may be made by dispensing a mixture of the multifunctional Michael donor, multifunctional Michael acceptor, rheological modifier and a catalyst through a through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the mixture 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. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.
摘要翻译：制造添加剂的弹性体部件由包含多官能迈克尔给体和多官能迈克尔受体和流变改性剂的反应产物的挤出物组成。添加弹性体制造的部件可以具有高的伸长率和耐热性。所述部件可以通过经由喷嘴分配多官能迈克尔供体，多功能迈克尔受体，流变改性剂和催化剂的混合物以形成沉积在基底上的挤出物来制备。在分配混合物的同时移动基座，喷嘴或其组合，以便在基座和喷嘴之间以预定图案水平移动，以在基座上形成材料的初始层。然后通过在初始层和随后的层上重复分配和移动，在初始层上形成随后的层。

6. 发明申请

WO2016200673A1 SUPPORT MATERIALS FOR 3D PRINTING 审中-公开
标题翻译：支持3D打印材料
公开(公告)号：WO2016200673A1
公开(公告)日：2016-12-15
申请号：PCT/US2016/035463
申请日：2016-06-02
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： BAYER, Roland , WAGNER, Anette , PYZIK, Aleksander J. , ALLEN, Sharon
IPC分类号： C09D101/28 , B29C67/00 , C08L1/28
CPC分类号： B29C64/40 , B29K2001/08 , B29K2101/12 , B29K2995/0062 , B33Y10/00 , B33Y70/00 , C08L1/284 , C09D101/284
摘要： 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.
摘要翻译：三维印刷品由DS为1.7〜2.5，MS为0.5以上的羟乙基甲基纤维素（HEMC）构成，其中DS为甲氧基的取代度，MS为羟乙氧基的摩尔取代度。当使用诸如聚（丙烯腈 - 丁二烯 - 苯乙烯），聚乳酸，聚乙烯和聚丙烯等不同的热塑性聚合物的构建材料制造三维印刷制品时，HEMC可有利地用作支撑材料。当HEMC是支撑材料时，可以通过使三维打印的制品与水（其可以在环境温度和中性或接近中性的pH）接触来容易地从构建材料中除去。

7. 发明申请

WO2015108770A1 RECOVERY OF ADDITIVE MANUFACTURING SUPPORT MATERIALS 审中-公开
标题翻译：补充制造支持材料的恢复
公开(公告)号：WO2015108770A1
公开(公告)日：2015-07-23
申请号：PCT/US2015/010749
申请日：2015-01-09
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： BAYER, Roland , MATTEUCCI, Scott T. , PYZIK, Aleksander J. , ALLEN, Sharon , LEUGERS, Mary Anne , DERMODY, Daniel L. , MOGLIA, Robert S.
IPC分类号： C08J11/08 , B29C67/00
CPC分类号： C08J11/08 , B29C64/35 , B29C64/40 , B33Y40/00 , B33Y70/00 , C08J2301/26 , Y02W30/701
摘要： 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.
摘要翻译：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。

8. 发明申请

WO2015108768A1 SUPPORT MATERIALS FOR 3D PRINTING 审中-公开
标题翻译：支持3D打印材料
公开(公告)号：WO2015108768A1
公开(公告)日：2015-07-23
申请号：PCT/US2015/010746
申请日：2015-01-09
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： BAYER, Roland , PYZIK, Aleksander J. , ALLEN, Sharon
IPC分类号： C08B11/193 , B29C67/04 , C08J5/00
CPC分类号： 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
摘要： 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.
摘要翻译：三维打印制品包括构建材料和支撑材料，所述载体材料包含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。

9. 发明申请

WO2017019393A1 METHOD TO ADDITIVE MANUFACTURE BIOCOMPATIBLE MATERIAL AND ARTICLES MADE BY THE METHOD 审中-公开
标题翻译：方法制备生物成分材料和方法
公开(公告)号：WO2017019393A1
公开(公告)日：2017-02-02
申请号：PCT/US2016/043044
申请日：2016-07-20
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： BAYER, Roland , PYZIK, Aleksander J. , ALLEN, Sharon , MATTEUCCI, Scott T.
IPC分类号： C08L1/28 , B29C67/00
CPC分类号： B33Y70/00 , B29C64/106 , B29K2995/0056 , C08L1/28
摘要： 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.
摘要翻译：添加剂制造方法包括提供由乙氧基含量为43〜52质量％的乙基纤维素聚合物和增塑剂构成的材料。通过喷嘴将材料加热和分配以形成沉积在基底上的挤出物。基部，喷嘴或其组合在分配材料的同时移动，使得在基部和喷嘴之间以预定图案存在水平位移，以在基底上形成材料的初始层，并且材料的连续层粘附在初始层以通过重复上述步骤形成添加剂制造部件。由乙基纤维素聚合物形成的制品可用于许多应用中，例如与制药和食品工业相关的那些。

10. 发明申请

WO2016148890A1 METHOD OF ADDITIVE MANUFACTURING USING PHOTOREGULATED RADICAL POLYMERIZATION 审中-公开
标题翻译：使用光电放射性聚合的添加剂制备方法
公开(公告)号：WO2016148890A1
公开(公告)日：2016-09-22
申请号：PCT/US2016/020102
申请日：2016-02-29
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： CLARK, Paul , KRAMER, John W. , PYZIK, Aleksander J.
IPC分类号： B29C67/00 , G03F7/00
CPC分类号： B29C64/135 , B33Y70/00 , G03F7/0037 , G03F7/027 , G03F7/029 , G03F7/031
摘要： A method of fabricating a three-dimensional object, the method comprising: combining at least one of a meth(acrylate), a (meth)acrylamide, a (meth)acrylonitrile, a styrene, an acrylonitrile, a vinyl acetate, a vinylcarbazole, a vinylpyridine, a vinyl ether, a vinyl chloride monomers, a polyfunctional monomer, and a polyfunctional prepolymer with an organic photoredox catalyst to provide a reaction mixture; depositing the reaction mixture; polymerizing the monomers by irradiating the reaction mixture with a light source; and repeating the depositing step until the three-dimensional object is formed.
摘要翻译：一种制造三维物体的方法，所述方法包括：将（甲基）丙烯酸酯，（甲基）丙烯酰胺，（甲基）丙烯腈，苯乙烯，丙烯腈，乙酸乙烯酯，乙烯基咔唑，乙烯基吡啶，乙烯基醚，氯乙烯单体，多官能单体和具有有机光氧化催化剂的多官能预聚物以提供反应混合物; 沉积反应混合物; 通过用光源照射反应混合物来聚合单体; 并重复沉积步骤直到形成三维物体。

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