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公开(公告)号：US11352498B2
公开(公告)日：2022-06-07
申请号：US16471865
申请日：2017-12-22
发明人： Brian Gray Price , Elena Miloskovska , Bruke Jofore , Raul Fernandez Cabello , Hao Gu , Vandita Pai-Paranjape , Viswanathan Kalyanaraman
IPC分类号： B29C64/264 , B29C64/153 , B29C64/245 , B33Y10/00 , B33Y70/00 , C08L79/08
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.
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公开(公告)号：US11230646B2
公开(公告)日：2022-01-25
申请号：US16341310
申请日：2017-10-11
IPC分类号： C09D11/102 , B29C64/153 , B29K69/00 , B33Y10/00 , B33Y70/00 , B33Y30/00 , B33Y80/00
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.
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公开(公告)号：US10087556B2
公开(公告)日：2018-10-02
申请号：US15036562
申请日：2014-11-07
IPC分类号： C08K5/526 , D01F6/64 , C08K5/523 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C09D169/00 , D01F1/10 , B29C64/106 , B29K69/00
摘要： A reduced density article of manufacture, and process for making same, made from a thermoplastic polycarbonate composition. The reduced density article of manufacture has (1) a certain density and (2) a certain micro structure containing from 1% to 20% by volume of voids wherein at least 80% of the voids are high aspect voids and less than 20% of the voids are spherical voids with a diameter of 10 to 100 microns. The polycarbonate thermoplastic composition comprises at least 50 mole % of a certain bisphenol A. The reduced density article of manufacture is made by a monofilament additive manufacturing technique.
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公开(公告)号：US20160298268A1
公开(公告)日：2016-10-13
申请号：US15036562
申请日：2014-11-07
IPC分类号： D01F6/64 , C08K5/523 , D01F1/10 , B29C67/00 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C08K5/526 , C09D169/00
CPC分类号： D01F6/64 , B29C64/106 , B29K2069/00 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C08K5/523 , C08K5/526 , C09D169/00 , D01F1/10 , D10B2401/041 , C08L69/00
摘要： A reduced density article of manufacture, and process for making same, made from a thermoplastic polycarbonate composition. The reduced density article of manufacture has (1) a certain density and (2) a certain micro structure containing from 1% to 20% by volume of voids wherein at least 80% of the voids are high aspect voids and less than 20% of the voids are spherical voids with a diameter of 10 to 100 microns. The polycarbonate thermoplastic composition comprises at least 50 mole % of a certain bisphenol A. The reduced density article of manufacture is made by a monofilament additive manufacturing technique.
摘要翻译： 由热塑性聚碳酸酯组合物制成的减密密度制品及其制造方法。 减密密度制品具有（1）一定密度和（2）含有1％至20体积％空隙的某种微结构，其中至少80％的空隙是高的空隙，并且小于20％的空隙 空隙是直径为10至100微米的球形空隙。 聚碳酸酯热塑性组合物包含至少50摩尔％的某种双酚A.减密密度的制品是通过单丝添加剂制造技术制成的。
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公开(公告)号：US20200087513A1
公开(公告)日：2020-03-19
申请号：US16471865
申请日：2017-12-22
发明人： Brain Gray Price , Elena Miloskovska , Bruke Jofore , Raul Fernandez Cabello , Hao Gu , Vandita Pai-Paranjape , Viswanathan Kalyanaraman
IPC分类号： C08L79/08 , B29C64/153 , B29C64/245 , B29C64/264
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.
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公开(公告)号：US20150267059A1
公开(公告)日：2015-09-24
申请号：US14734565
申请日：2015-06-09
IPC分类号： C09D5/33 , F21V13/04 , F21V29/85 , C08K5/357 , C09D169/00 , C08K9/06 , C08K5/3475 , F21K99/00 , F21V9/06
CPC分类号： C08K5/3447 , C08K3/22 , C08K5/3475 , C08K5/357 , C08K5/42 , C08K9/02 , C08K9/06 , C08K9/08 , C09D5/004 , C09D169/00 , F21K9/60 , F21V7/22 , F21V9/06 , F21V13/04 , F21V29/20 , F21V29/85 , F21Y2115/10 , C08L69/00
摘要： In an embodiment, a polycarbonate composition comprises: polycarbonate; 7 wt % to 20 wt % titanium dioxide, based upon a total weight of the polycarbonate composition; an optional flame retardant; and an optional UV stabilizer. A plaque formed from the polycarbonate composition has a reflectance of greater than or equal to 95%, as determined by reflectance measurements using a Gretag Macbeth Coloreye spectrophotometer (D65 light source, 10 degree observer, UV included) made at a wavelength of 680 nm. In an embodiment, a polycarbonate composition comprises: a polycarbonate; 7 to 20 wt % titanium dioxide; a flame retardant; and an optional UV stabilizer; wherein the polycarbonate composition has a maximum reflectance of greater than or equal to 95%. The melt volume rate as determined at 300° C. using a 1.2 kilogram weight, in accordance with ASTM D1238-04 is from 5 to 30 grams per 10 minutes.
摘要翻译： 在一个实施方案中，聚碳酸酯组合物包含：聚碳酸酯; 7重量％至20重量％的二氧化钛，基于聚碳酸酯组合物的总重量; 可选阻燃剂; 和可选的UV稳定剂。 由聚碳酸酯组合物形成的斑块具有大于或等于95％的反射率，其通过使用在680nm波长下制造的Gretag Macbeth Coloreye分光光度计（D65光源，10度观察器，包括UV）的反射率测量来确定。 在一个实施方案中，聚碳酸酯组合物包含：聚碳酸酯; 7至20重量％的二氧化钛; 阻燃剂; 和可选的UV稳定剂; 其中所述聚碳酸酯组合物具有大于或等于95％的最大反射率。 根据ASTM D1238-04，使用1.2千克重量在300℃下测定的熔融体积率为5至30克/ 10分钟。
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公开(公告)号：US09090759B2
公开(公告)日：2015-07-28
申请号：US13765204
申请日：2013-02-12
IPC分类号： C08L69/00 , C08K3/22 , F21V7/22 , C08K5/42 , C08K5/3447 , C08K5/357 , C08K5/3475 , C08K9/02 , C08K9/08 , F21V29/00 , F21Y101/02
CPC分类号： C08K5/3447 , C08K3/22 , C08K5/3475 , C08K5/357 , C08K5/42 , C08K9/02 , C08K9/06 , C08K9/08 , C09D5/004 , C09D169/00 , F21K9/60 , F21V7/22 , F21V9/06 , F21V13/04 , F21V29/20 , F21V29/85 , F21Y2115/10 , C08L69/00
摘要： In an embodiment, a polycarbonate composition comprises: polycarbonate; 7 wt % to 20 wt % titanium dioxide, based upon a total weight of the polycarbonate composition; an optional flame retardant; and an optional UV stabilizer. A plaque formed from the polycarbonate composition has a reflectance of greater than or equal to 95%, as determined by reflectance measurements using a Gretag Macbeth Coloreye spectrophotometer (D65 light source, 10 degree observer, UV included) made at a wavelength of 680 nm. In an embodiment, a polycarbonate composition comprises: a polycarbonate; 7 to 20 wt % titanium dioxide; a flame retardant; and an optional UV stabilizer; wherein the polycarbonate composition has a maximum reflectance of greater than or equal to 95%. The melt volume rate as determined at 300° C. using a 1.2 kilogram weight, in accordance with ASTM D1238-04 is from 5 to 30 grams per 10 minutes.
摘要翻译： 在一个实施方案中，聚碳酸酯组合物包含：聚碳酸酯; 7重量％至20重量％的二氧化钛，基于聚碳酸酯组合物的总重量; 可选阻燃剂; 和可选的UV稳定剂。 由聚碳酸酯组合物形成的斑块具有大于或等于95％的反射率，其通过使用在680nm波长下制造的Gretag Macbeth Coloreye分光光度计（D65光源，10度观察器，包括UV）的反射率测量来确定。 在一个实施方案中，聚碳酸酯组合物包含：聚碳酸酯; 7至20重量％的二氧化钛; 阻燃剂; 和可选的UV稳定剂; 其中所述聚碳酸酯组合物具有大于或等于95％的最大反射率。 根据ASTM D1238-04，使用1.2千克重量在300℃下测定的熔融体积率为5至30克/ 10分钟。
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公开(公告)号：US09464189B2
公开(公告)日：2016-10-11
申请号：US13743560
申请日：2013-01-17
发明人： Christopher Luke Hein , Jan-Pleun Lens , Vandita Pai-Paranjape , Constant Peek , Robert Dirk van de Grampel
IPC分类号： C08L69/00 , C08G77/448 , C08L83/10
CPC分类号： C08L69/00 , C08G77/448 , C08L83/10 , Y10T428/25 , Y10T428/257 , C08L83/00
摘要： An article and thermoplastic composition including polycarbonate, a polysiloxane-polycarbonate and an x-ray detectable or metal detectable agent having good magnetic permeability and/or electrical conductivity wherein the composition may be used in articles for food preparation. The thermoplastic compositions are useful in forming molds for manufacturing a food product, such as chocolate molds.
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公开(公告)号：US09315675B2
公开(公告)日：2016-04-19
申请号：US14734565
申请日：2015-06-09
IPC分类号： C08L69/00 , C08K3/22 , F21V7/22 , C09D5/33 , C08K5/42 , C08K5/3447 , C08K5/357 , C08K5/3475 , C08K9/02 , C08K9/08 , F21V29/85 , C08K9/06 , C09D169/00 , F21K99/00 , F21V9/06 , F21V13/04 , F21V29/00 , F21Y101/02
CPC分类号： C08K5/3447 , C08K3/22 , C08K5/3475 , C08K5/357 , C08K5/42 , C08K9/02 , C08K9/06 , C08K9/08 , C09D5/004 , C09D169/00 , F21K9/60 , F21V7/22 , F21V9/06 , F21V13/04 , F21V29/20 , F21V29/85 , F21Y2115/10 , C08L69/00
摘要： In an embodiment, a polycarbonate composition comprises: polycarbonate; 7 wt % to 20 wt % titanium dioxide, based upon a total weight of the polycarbonate composition; an optional flame retardant; and an optional UV stabilizer. A plaque formed from the polycarbonate composition has a reflectance of greater than or equal to 95%, as determined by reflectance measurements using a Gretag Macbeth Coloreye spectrophotometer (D65 light source, 10 degree observer, UV included) made at a wavelength of 680 nm. In an embodiment, a polycarbonate composition comprises: a polycarbonate; 7 to 20 wt % titanium dioxide; a flame retardant; and an optional UV stabilizer; wherein the polycarbonate composition has a maximum reflectance of greater than or equal to 95%. The melt volume rate as determined at 300° C. using a 1.2 kilogram weight, in accordance with ASTM D1238-04 is from 5 to 30 grams per 10 minutes.
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