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1. 发明申请

WO2016209870A1 IMPROVED MANUFACTURABILITY OF AMORPHOUS POLYMERS IN POWDER BED FUSION PROCESSES 审中-公开
标题翻译：非晶聚合物在粉饼融合工艺中的改进制造方法
公开(公告)号：WO2016209870A1
公开(公告)日：2016-12-29
申请号：PCT/US2016/038631
申请日：2016-06-22
申请人： SABIC GLOBAL TECHNOLOGIES B.V. , KALYANARAMAN, Viswanathan
发明人： KALYANARAMAN, Viswanathan , LEENDERS, Chiel Albertus , GU, Hao
IPC分类号： B29C67/00 , B33Y70/00
CPC分类号： B29B13/007 , B29C64/153 , B29K2069/00 , B29K2079/085 , B29K2995/0039 , B33Y10/00 , B33Y40/00 , B33Y70/00 , B33Y80/00 , C08G64/40 , C08G73/1053 , C08G2140/00 , C08G2250/00 , C08J3/12 , C08J3/14 , C08J2369/00 , C08J2379/08
摘要： A method of making an article, the method comprising converting a first amorphous polymer to an at least partially crystalline polymeric powder composition and powder bed fusing the at least partially crystalline polymer powder composition to form a three-dimensional article comprising a second amorphous polymer.
摘要翻译：一种制造制品的方法，所述方法包括将第一无定形聚合物转化为至少部分结晶的聚合物粉末组合物和粉末床，所述粉末组合物与所述至少部分结晶的聚合物粉末组合物融合以形成包含第二无定形聚合物的三维制品。

2. 发明申请

WO2018200771A1 ENHANCED LAYER ADHESION ADDITIVE IN MANUFACTURING BY USE OF MULTIPLE HEATING STEPS 审中-公开
公开(公告)号：WO2018200771A1
公开(公告)日：2018-11-01
申请号：PCT/US2018/029512
申请日：2018-04-26
申请人： SABIC GLOBAL TECHNOLOGIES B.V. , PAI-PARANJAPE, Vandita
发明人： PAI-PARANJAPE, Vandita , MILOSKOVSKA, Elena , JOFORE, Bruke , GU, Hao , FERNANDEZ CABELLO, Raul , CACCAVALE, Federico , PRICE, Brian
IPC分类号： B22F3/105 , B29C64/118 , B29C64/153
摘要： Provided are systems and methods for additive manufacturing, which systems and methods yield parts having improved interlay er adhesion. In the disclosed technology, additional heating steps are applied on the upper surface of the already printed workpiece so as to offset the dropping temperature of that surface during part fabrication. These heating steps elevate the temperature of the surface to a value that results in a molten interface with subsequently-applied build material, leading to improved interlayer adhesion. This technology is applicable to a variety of additive manufacturing processes, including but not limited to selective laser sintering, fused filament fabrication, and large format additive manufacturing approaches.

3. 发明申请

WO2018071578A8 CRYSTALLINE POLYCARBONATE POWDERS FOR POWDER BED FUSION IN ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：WO2018071578A8
公开(公告)日：2018-04-19
申请号：PCT/US2017/056194
申请日：2017-10-11
申请人： SABIC GLOBAL TECHNOLOGIES B.V. , PAI-PARANJAPE, Vandita
发明人： PAI-PARANJAPE, Vandita , MILOSKOVSKA, Elena , JOFORE, Bruke , FERNANDEZ CABELLO, Raul , GU, Hao
IPC分类号： B33Y70/00 , B29C64/153 , C08G64/00 , C08J3/12
摘要： Provided are compositions comprising partially crystalline polycarbonate particulate having an average cross-sectional dimension of from about 1 μιη to about 200 μιτι, having from about 10% crystallinity to about 50% crystallinity, and having a weight-average molecular weight, per polystyrene standards, of from about 17,000 to about 40,000 Daltons. The composition exhibits a zero-shear viscosity of less than about 104 Pa s at the melting temperature of the partially crystalline polycarbonate. Related systems and methods for utilizing these compositions in additive manufacturing applications, including selective laser sintering (SLS) applications, are also disclosed. Also provided are additively-manufactured articles made with the disclosed compositions and according to the disclosed methods.

4. 发明申请

WO2019048986A1 METHOD FOR PRODUCING A POLYCARBONATE ARTICLE 审中-公开
公开(公告)号：WO2019048986A1
公开(公告)日：2019-03-14
申请号：PCT/IB2018/056561
申请日：2018-08-28
申请人： SABIC GLOBAL TECHNOLOGIES B.V. , THE UNIVERSITY OF NOTTINGHAM , PRICE, Brian Gray
发明人： PRICE, Brian Gray , KAMPS, Jan Henk , GU, Hao , QIAN, Qifeng , TUCK, Christopher John , WILDMAN, Ricky Darren , HAQUE, Richard James McKenzie , BEGINES, Belen
IPC分类号： B29C64/112 , C08G64/06
摘要： A method for producing a polycarbonate article comprises printing a droplet onto a target location in a build area to obtain a printed droplet, wherein the droplet comprises a precursor solution comprising a precursor composition, a catalyst, and a solvent; removing at least a portion of the solvent from the printed droplet to obtain a bead comprising a precursor precipitate, wherein the precursor precipitate comprises the precursor composition and the catalyst; repeating the printing step and the removing step adjacent to or on the bead to obtain a plurality of adjacent beads comprising precursor precipitates; and polymerizing the precursor precipitates to obtain the polycarbonate article.

5. 发明申请

WO2018119409A1 POLYETHERIMIDE POWDERS FOR ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：WO2018119409A1
公开(公告)日：2018-06-28
申请号：PCT/US2017/068228
申请日：2017-12-22
申请人： SABIC GLOBAL TECHNOLOGIES B.V. , PRICE, Brian Gray
发明人： PRICE, Brian Gray , MILOSKOVSA, Elena , JOFORE, Bruke , FERNANDEZ CABELLO, Raul , GU, Hao , PAI-PARANJAPE, Vandita , KALYANARAMAN, Viswanathan
IPC分类号： C08J3/12 , B33Y70/00 , B29C64/153
摘要： Provided are amorphous and at least partially crystalline polyetherimide compositions having a comparatively narrow particle size distribution and are particularly suited for additive manufacturing processes. The compositions comprise a population of polyetherimide particulates are characterized as having a zero-shear viscosity sufficiently low so as to achieve a coalescence of at least 0.5, and preferably of about 1.0, as characterized by the Frenkel model at a temperature less than 450 °C.

6. 发明申请

WO2018071578A1 CRYSTALLINE POLYCARBONATE POWDERS FOR POWDER BED FUSION IN ADDITIVE MANUFACTURING 审中-公开
标题翻译：结晶聚碳酸酯粉末用于添加剂制造中的粉末床融合
公开(公告)号：WO2018071578A1
公开(公告)日：2018-04-19
申请号：PCT/US2017/056194
申请日：2017-10-11
申请人： SABIC GLOBAL TECHNOLOGIES B.V. , PAI-PARANJAPE, Vandita
发明人： PAI-PARANJAPE, Vandita , MILOSKOVSKA, Elena , JOFORE, Bruke , FERNANDEZ CABELLO, Paul , GU, Hao
IPC分类号： B33Y70/00 , B29C64/153 , C08G64/00 , C08J3/12
摘要： Provided are compositions comprising partially crystalline polycarbonate particulate having an average cross-sectional dimension of from about 1 μιη to about 200 μιτι, having from about 10% crystallinity to about 50% crystallinity, and having a weight-average molecular weight, per polystyrene standards, of from about 17,000 to about 40,000 Daltons. The composition exhibits a zero-shear viscosity of less than about 104 Pa s at the melting temperature of the partially crystalline polycarbonate. Related systems and methods for utilizing these compositions in additive manufacturing applications, including selective laser sintering (SLS) applications, are also disclosed. Also provided are additively-manufactured articles made with the disclosed compositions and according to the disclosed methods.
摘要翻译：提供了包含具有约1μm至约200μm的平均横截面尺寸，具有约10％结晶度至约50％结晶度并且具有重均分子量分布的部分结晶聚碳酸酯颗粒的组合物，平均分子量为约17,000至约40,000道尔顿。该组合物在部分结晶的聚碳酸酯的熔融温度下表现出小于约10 4 Pa s的零剪切粘度。还公开了在包括选择性激光烧结（SLS）应用的增材制造应用中利用这些组合物的相关系统和方法。还提供了用公开的组合物和根据所公开的方法制造的加成制造的制品。

7. 发明申请

WO2018122734A1 COMPOSITIONS FOR USE IN SELECTIVE LASER SINTERING AND OTHER ADDITIVE MANUFACTURING PROCESSES 审中-公开
公开(公告)号：WO2018122734A1
公开(公告)日：2018-07-05
申请号：PCT/IB2017/058423
申请日：2017-12-27
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： RAMAKRISHNAN, Vaidyanath , JOFORE, Bruke , GOOSSENS, Johannes Gerardus Petrus , GU, Hao , GOOSSENS, Johannes Martinus Dina
IPC分类号： B29C64/141 , B29C64/165 , C08J3/12 , C08L67/02 , C08L101/00
摘要： Provided are particulate compositions that include a matrix polymer and fibrillated reinforcement materials (e.g., PTFE or ultra-high molecular weight polyethylene fibrils) dispersed therein. The compositions are suitable for use in additive manufacturing processes.

8. 发明申请

WO2017109703A1 ENHANCED POWDER FLOW AND MELT FLOW OF POLYMERS FOR ADDITIVE MANUFACTURING APPLICATIONS 审中-公开
标题翻译：增塑剂用于添加剂制造应用的增强粉末流动和熔体流动
公开(公告)号：WO2017109703A1
公开(公告)日：2017-06-29
申请号：PCT/IB2016/057835
申请日：2016-12-20
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： LEENDERS, Chiel Albertus , IJSSELMUIDEN, Samuel , GOOSSENS, Johannes Gerardus Petrus , JOFORE, Bruke , GU, Hao
IPC分类号： B29C67/00 , C08J3/12
CPC分类号： C08L79/00 , B29C64/153 , B33Y10/00 , B33Y70/00 , C09D183/04
摘要： Provided are thermoplastic-nanoparticle compositions that exhibit enhanced powder and melt flow. The disclosed compositions, comprising nanoparticles being silylated, have particular application in additive manufacturing processes, such as selective laser sintering and other processes.
摘要翻译：提供了表现出增强的粉末和熔体流动性的热塑性纳米粒子组合物。包含被甲硅烷基化的纳米粒子的公开的组合物特别应用于增材制造工艺，例如选择性激光烧结和其他工艺。

9. 发明申请

WO2019224016A1 PROCESS FOR SHAPING A POLYMERIC OBJECT 审中-公开
公开(公告)号：WO2019224016A1
公开(公告)日：2019-11-28
申请号：PCT/EP2019/062007
申请日：2019-05-10
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： GU, Hao , SCHOUWENAAR, Richard , BASHEER, Zahir , YANG, Lanti
IPC分类号： B29C64/153 , B29C64/245 , B33Y10/00 , B29C64/223
摘要： The present invention relates to a process for moulding a polymeric object, the process comprising the steps of: (a) providing a substantially flat horizontally positioned layer of a material, the layer being a film or sheet; (b) providing a layer of a thermoplastic powder onto the layer provided under (a); (c) subjecting a pre-defined part of the thermoplastic powder to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of material; (d) terminating the exposure to irradiation; (e) providing a further layer of the thermoplastic powder onto the layer provided under (b); (f) subjecting a pre-defined part of the thermoplastic powder of the layer provided under (e) to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of the material fused under (c); (g) terminating the exposure to irradiation; (h) repeating steps (e) – (g) for as many cycles as required to complete the shape of the desired polymeric object; (i) removing the fraction of thermoplastic powder that has not been fused or sintered; and (j) optionally removing the substantially flat layer as provided under (a) from the polymeric object; wherein the surface area of the substantially flat layer of material is at least 200% of the surface area of that layer produced under steps (c) – (h) having the largest surface area. Such process allows for the production of small series or uniquely designed objects at low energy consumption wherein the objects exhibit high dimensional stability.

10. 发明申请

WO2019115455A1 POLYMER COMPOSITION FOR SELECTIVE SINTERING 审中-公开
公开(公告)号：WO2019115455A1
公开(公告)日：2019-06-20
申请号：PCT/EP2018/084175
申请日：2018-12-10
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： GU, Hao , BASHEER, Zahir
IPC分类号： C08G63/88 , B33Y70/00 , B33Y10/00
CPC分类号： C08G63/88 , B33Y10/00 , B33Y70/00
摘要： The present invention relates to a polymer composition for the production of shaped objects via selective sintering wherein the polymer composition comprises a thermoplastic polyester selected from poly(ethylene terephthalate), polyethylene naphthalate), poly(ethylene furanoate), poly(trimethylene terephthalate), poly(ethylene succinate), or poly(hydroxyl butyrate), wherein ≥10.0 wt% of the thermoplastic polyester has been subjected to a thermal treatment. Such polymer composition allows for the production of an article having a continuous use temperature of ≥100° C, and results in a low change of molecular weight during exposure to selective sintering powder processing temperatures. Further, such polymer composition allows for a significant reduction of the waste material generated during selective sintering as the unsintered material does not have to be disposed of as waste but may be used again fully, or blended with virgin material of the polymer composition and re-used, in a further selective sintering process.

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