公开(公告)号：US5304329A

公开(公告)日：1994-04-19

申请号：US980003

申请日：1992-11-23

申请人： Elmer D. Dickens, Jr. ,  Glenn A. Taylor ,  Frederic W. Kunig ,  Angelo J. Magistro ,  Eric M. Weissman ,  Timothy R. Hradek

发明人： Elmer D. Dickens, Jr. ,  Glenn A. Taylor ,  Frederic W. Kunig ,  Angelo J. Magistro ,  Eric M. Weissman ,  Timothy R. Hradek

IPC分类号： B29C67/00 ,  B29C35/08

CPC分类号： B29C67/0077

摘要： This method teaches how to recover and reuse a powder of a thermally degradable material which is used in a selective laser sintering (SLS) process. To recycle such a laser-sinterable powder successfully in a SLS machine it is protected against degradation by cooling the hot bed while layer-upon-layer (layer-wise) of powder is being sintered, seriatim, to form successive slices fused together to form an article of arbitrary shape (part). The process requires maintaining the powder which has more than 80% of the number of particles

摘要翻译： 该方法教导了如何回收和再利用用于选择性激光烧结（SLS）工艺的可热降解材料的粉末。 为了在SLS机器中成功地回收这样的可激光烧结粉末，通过冷却热床来保护其免受降解，同时层压（层）上的粉末被烧结，形成连续的切片，以形成熔合在一起形成 任意形状的文章（部分）。 该方法需要将具有超过80％的颗粒数量（m 3）的颗粒保持为静止床，其仍然是足够多孔的，以允许冷却气体向下流动穿过床而不破坏其表面。 由于每个切片形成在表面，并且部件在其形成时被支撑在绝热的床中，与切片相邻的粉末的温度比床的其余部分中的粉末高得多，但是 对于冷却气体，会过热。 过热粉末不仅会降解，而且会熔化到热部件的表面，形成“成长”，从而使零件不能用于其预定目的。 该方法允许经济地将未使用的粉末从床中回收到灭绝。 如果粉末在热时也对氧气敏感，则使用惰性气体作为冷却气体。

公开(公告)号：US5527877A

公开(公告)日：1996-06-18

申请号：US298076

申请日：1994-08-30

申请人： Elmer D. Dickens, Jr. ,  Biing L. Lee ,  Glenn A. Taylor ,  Angelo J. Magistro ,  Hendra Ng ,  Kevin McAlea ,  Paul F. Forderhase

发明人： Elmer D. Dickens, Jr. ,  Biing L. Lee ,  Glenn A. Taylor ,  Angelo J. Magistro ,  Hendra Ng ,  Kevin McAlea ,  Paul F. Forderhase

IPC分类号： C08L101/00 ,  B29C35/08 ,  B29C41/00 ,  B29C67/00 ,  B29C67/04 ,  B29K23/00 ,  B29K77/00 ,  C08G69/14 ,  C08J3/12 ,  C08J9/24 ,  C08L23/04 ,  C08L23/10 ,  C08L23/26 ,  C08L59/00 ,  C08L77/00

CPC分类号： C08J3/12 ,  B29C41/003 ,  B29C67/0077 ,  B29C67/04 ,  C08J9/24 ,  B29C2035/0838 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2059/00 ,  B29K2067/006 ,  B29K2077/00 ,  B29K2079/00 ,  B29K2995/0094 ,  Y10S521/919 ,  Y10S525/902 ,  Y10T428/249958 ,  Y10T428/249986 ,  Y10T428/252

摘要： A laser-sinterable powder product has been prepared having unique properties which allow the powder to be sintered in a selective laser sintering machine to form a sintered part which is near-fully dense. For most purposes, the sintered part is indistinguishable from another part having the same dimensions made by isotropically molding the powder. In addition to being freely flowable at a temperature near its softening temperature, a useful powder is disclosed that has a two-tier distribution in which substantially no primary particles have an average diameter greater than 180 .mu.m, provided further that the number average ratio of particles smaller than 53 .mu.m is greater than 80%, the remaining larger particles being in the size range from 53 .mu.m to 180 .mu.m. A powder with slow recrystallization rates, as evidenced by non-overlapping endothermic and exothermic peaks in their differential scanning calorimetry characteristics for scan rates of on the order of 10.degree. C. to 20.degree. C. per minute, will also result in sintered parts that are near-fully dense, with minimal dimensional distortion.

公开(公告)号：US5342919A

公开(公告)日：1994-08-30

申请号：US980004

申请日：1992-11-23

申请人： Elmer D. Dickens, Jr. ,  Biing Lin Lee ,  Glenn A. Taylor ,  Angelo J. Magistro ,  Hendra Ng

发明人： Elmer D. Dickens, Jr. ,  Biing Lin Lee ,  Glenn A. Taylor ,  Angelo J. Magistro ,  Hendra Ng

IPC分类号： B29C35/08 ,  B29C41/00 ,  B29C67/00 ,  B29C67/04 ,  C08G69/14 ,  C08J3/12 ,  C08J9/24 ,  B27N3/00

CPC分类号： C08J9/24 ,  B29C41/003 ,  B29C67/0077 ,  B29C67/04 ,  C08J3/12 ,  B29C2035/0838 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2059/00 ,  B29K2067/006 ,  B29K2077/00 ,  B29K2079/00 ,  B29K2995/0094

摘要： A laser-sinterable powder product has been prepared having unique properties which allow the powder to be sintered in a selective laser sintering (SLS) machine to form a sintered part which is near-fully dense. For most purposes, the sintered part is indistinguishable from another part having the same dimensions made by isotropically molding the powder. In addition to being freely flowable at a temperature near its softening temperature, the powder has a two-tier distribution in which substantially no primary particles has an average diameter greater than 180.mu.m, provided further that the number average ratio of particles smaller than 53.mu.m is greater than 80%, the remaining larger particles being in the size range from 53.mu.m to 180.mu.m. When the powder is a semicrystalline synthetic resin having a number average molecular weight in the range from about 30,000 to 500,000; a molecular weight distribution M.sub.w /M.sub.n in the range from 1 to 5; and, provides a window of sinterability in the temperature range from near the powder's softening temperature T.sub.s to its caking temperature T.sub.c, it is sintered layer-upon layer to form a near-fully dense part of arbitrary shape.

摘要翻译： 已经制备了具有独特性质的激光可烧结粉末产品，其允许粉末在选择性激光烧结（SLS）机器中烧结以形成接近完全致密的烧结部分。 对于大多数目的，烧结部分与通过各向同性地成型粉末制成的具有相同尺寸的另一部件是不可区分的。 除了在接近其软化温度的温度下可自由流动之外，粉末具有两层分布，其中基本上没有一次颗粒的平均直径大于180μm，条件是颗粒的数量比小于53 亩大于80％，其余较大颗粒的尺寸范围为53μm至180μm。 当粉末是数均分子量在约30,000至500,000范围内的半结晶合成树脂时; 分子量分布Mw / Mn在1至5的范围内; 并且在从接近粉末的软化温度Ts到其结块温度Tc的温度范围内提供可烧结窗口，其是层状烧结以形成任意形状的近乎完全致密的部分。

公开(公告)号：US5733497A

公开(公告)日：1998-03-31

申请号：US527840

申请日：1995-09-13

申请人： Kevin P. McAlea ,  Paul F. Forderhase ,  Mark E. Ganninger ,  Frederic W. Kunig ,  Angelo J. Magistro

发明人： Kevin P. McAlea ,  Paul F. Forderhase ,  Mark E. Ganninger ,  Frederic W. Kunig ,  Angelo J. Magistro

IPC分类号： C08J9/24 ,  B29C39/00 ,  B29C41/00 ,  B29C67/00 ,  B29C67/20 ,  B29K105/04 ,  C08J9/32 ,  C08K7/20 ,  C08L77/00 ,  C08L101/00 ,  B29C35/08 ,  B29C41/02

CPC分类号： C08K7/20 ,  B29C39/003 ,  B29C41/003 ,  B29C67/0077

摘要： A composite powder specially adapted for use in selective laser sintering is disclosed. The composite powder includes a polymer powder dry mixed with a reinforcement powder, where the polymer powder has a melting temperature substantially lower than that of the reinforcement powder. In the case where nearfully dense parts are to be formed, the first constituent powder is preferably a semi-crystalline powder, for example nylon 11, of a composition suitable for forming near-fully dense parts when used unblended in selective laser sintering; if porous parts are desired, the polymer powder is an amorphous powder, such as polycarbonate, polystyrene, acrylates, and styrene/acrylate copolymers. The reinforcement powder is preferably microspheres of glass, preferably coated to enhance wetting and adhesion with the polymer powder when selective laser sintering is performed. Besides improving the stiffness and heat resistance of the part produced, the composite powder widens the process window over that provided by unblended powder, provides improved dimensional accuracy in the part produced, and facilitates roughbreakout and smooth finishing of the part produced.

摘要翻译： 公开了一种特别适用于选择性激光烧结的复合粉末。 复合粉末包括与增强粉末混合的聚合物粉末，其中聚合物粉末的熔融温度基本上低于加强粉末的熔融温度。 在要形成接近密集部分的情况下，第一组分粉末优选为半结晶粉末，例如尼龙11，适合于在选择性激光烧结中未掺杂时形成近乎致密部分的组合物; 如果需要多孔部分，聚合物粉末是无定形粉末，例如聚碳酸酯，聚苯乙烯，丙烯酸酯和苯乙烯/丙烯酸酯共聚物。 增强粉末优选是玻璃微球体，优选涂覆以在选择性激光烧结时增强与聚合物粉末的润湿性和粘合性。 除了提高所生产部件的刚度和耐热性之外，复合材料粉末使工艺窗口比非混合粉末提高了加工窗口的尺寸，提高了产品尺寸精度，并促进了生产部件的破裂和光滑整理。

公开(公告)号：US5178938A

公开(公告)日：1993-01-12

申请号：US680225

申请日：1991-04-04

申请人： Angelo J. Magistro ,  Phillip S. Neal

发明人： Angelo J. Magistro ,  Phillip S. Neal

IPC分类号： B32B7/12 ,  C09J175/04

CPC分类号： C09J175/04 ,  B32B7/12 ,  Y10T428/31562 ,  Y10T428/31739 ,  Y10T442/365 ,  Y10T442/3854

摘要： Aromatic mono-, di-, or trihydroxy compounds are used alone or containing peel strength-improving additives, in association with a polyurethane adhesive, for adhering a polyurethane-coated nylon fabric to another polyurethane-coated nylon fabric to form a polyurethane-coated nylon composite, and for adhering a nylon fabric coated with an aluminum flake-containing polyurethane to a polyurethane-coated nylon fabric. Additionally, aromatic mono-, di-, or trihydroxy compounds are utilized in association with a polyurethane adhesive for forming a lamina composition comprising a polyurethane film adhered to a nylon fabric.

摘要翻译： 芳族单 - ，二 - 或三羟基化合物单独使用或含有剥离强度改进添加剂，与聚氨酯粘合剂相结合，用于将聚氨酯涂覆的尼龙织物粘附到另一种聚氨酯涂覆的尼龙织物上以形成聚氨酯涂覆的尼龙 复合材料，并将用含铝薄片的聚氨酯涂覆的尼龙织物粘附到聚氨酯涂覆的尼龙织物上。 此外，芳香族单 - ，二 - 或三羟基化合物与聚氨酯粘合剂一起使用，用于形成包含粘附到尼龙织物上的聚氨酯膜的薄片组合物。

公开(公告)号：US5087791A

公开(公告)日：1992-02-11

申请号：US615193

申请日：1990-11-19

申请人： Angelo J. Magistro

发明人： Angelo J. Magistro

IPC分类号： C07C5/48

CPC分类号： C07C5/48 ,  Y02P20/52

摘要： Ethylene is prepared in an oxydehydrogenation reaction of ethane by contacting a charge amount of ethane, an oxygen source, a chlorine source and water in the presence of a solid solution catalyst at an effective temperature. A low yield of vinyl chloride and a high yield of ethylene are obtained at a high ethane conversion.

公开(公告)号：US4801627A

公开(公告)日：1989-01-31

申请号：US897437

申请日：1986-08-18

申请人： Douglas B. Rahrig ,  Angelo J. Magistro ,  Richard G. Parker

发明人： Douglas B. Rahrig ,  Angelo J. Magistro ,  Richard G. Parker

IPC分类号： C08J5/08 ,  C08K7/14 ,  C08K9/08 ,  C08L27/06 ,  C08K9/00

CPC分类号： C08J5/08 ,  C08K7/14 ,  C08K9/08 ,  C08J2327/00 ,  Y10T428/249948 ,  Y10T428/2962 ,  Y10T428/2964

摘要： Vinyl chloride (VC) resins, particularly poly(vinyl chloride) (PVC) and chlorinated poly(vinyl chloride) (CPVC) are reinforced with glass fibers which have been sized with a particular aminosilane coupling agent and a particularly characterized basic film former. At the processing temperature of VC resin, containing a stabilizer against degradation during thermoforming, for example in an extruder, or on a mixing mill used to blend the resin with sized glass fibers, a reaction occurs between an aminosilane coupling agent and the VC resin which reaction involves C.dbd.C bonds in the homopolymer, provided the polymer film former in the size is more basic than poly(vinyl acetate) ("PVA"). The film former catalyzes the thermal dehydrohalogenation of the VC homopolymer at the fiber-resin interface so as to generate allylic Cl moieties in chains of the homopolymer, which moieties react with the amine groups of the aminosilane. The size is most conveniently coated on the fibers from a sizing solution, dispersion or emulsion containing the coupling agent and film former in which allylic Cl moieties in VC resin chains become covalently bonded to an aminosilane, so that even upon thorough extraction of a GFR VC composite with tetrahydrofuran (THF), sufficient bound VC resin remains so that X-ray photoelectron spectroscopic (XPS) examination indicates that the ratio of total chlorine to total carbon remaining on the surface of the glass fibers, i.e. the ratio of the areas of the "Cl(2p)/C(1s)" peaks, is at least 0.91.

摘要翻译： 氯乙烯（VC）树脂，特别是聚（氯乙烯）（PVC）和氯化聚（氯乙烯）（CPVC））用玻璃纤维增​​强，玻璃纤维的尺寸与特定的氨基硅烷偶联剂和特别表征的基础成膜剂一样。 在VC树脂的加工温度下，例如在挤压机中，或在用于将树脂与尺寸的玻璃纤维混合的混合机上含有稳定剂以防止降解，在氨基硅烷偶联剂和VC树脂之间发生反应 反应包括均聚物中的C = C键，只要聚合物成膜剂的尺寸比聚（乙酸乙烯酯）（“PVA”）更碱性。 成膜剂在纤维 - 树脂界面处催化VC均聚物的热脱卤化氢，以在均聚物的链中产生烯丙基Cl部分，该部分与氨基硅烷的胺基反应。 尺寸最方便地涂布在来自含有偶联剂和成膜剂的施胶溶液，分散体或乳液的纤维上，其中VC树脂链中的烯丙基Cl部分共价键合到氨基硅烷上，使得即使彻底提取GFR VC 与四氢呋喃（THF）复合，剩余足够结合的VC树脂，使得X射线光电子光谱（XPS）检查表明玻璃纤维表面上残留的总氯与总碳的比例，即 “Cl（2p）/ C（1s）”峰至少为0.91。

公开(公告)号：US4485081A

公开(公告)日：1984-11-27

申请号：US470349

申请日：1983-02-28

申请人： Angelo J. Magistro

发明人： Angelo J. Magistro

IPC分类号： B01J23/72 ,  C01B7/01

CPC分类号： C01B7/01 ,  B01J23/72

摘要： Oxidation of chlorinated hydrocarbons ("CHC") is effected in a fluidized bed of alumina catalyst-support on which is deposited a "soft" metal as the active catalytic ingredient, and the bed is fluidized with a nitrogen-free oxygen-containing stream of HCl gas, in conjunction with steam. The steam, in a particular range of proportions relative to the HCl, stifles the production of free Cl without blinding the active catalyst sites so that conversion of the CHCs is always at least 95%. The process comprises contacting the CHCs in the vapor phase with a fluidized bed of a catalyst-support on which is deposited an effective amount of iron, or copper, or both, in an active form, sufficient to convert in excess of 95% of the CHC on a molar basis, and the bed is fluidized with HCl, superheated steam and oxygen substantially free of nitrogen.In a particular embodiment using a single ("catoxid") reactor, the effluent is purged of water, unconverted CHCs, CO.sub.2 and some HCl, and the remaining predominantly HCl stream is recycled to the catoxid reactor. In another embodiment of the invention, the effluent from the catoxid reactor is fed to a second ("oxy") reactor to recover the HCl values by reaction with ethylene, air and HCl to produce 1,2-dichloroethane; the effluent from the catoxid reactor helps to fluidize the catalyst in the oxy reactor.

摘要翻译： 氯化烃（“CHC”）的氧化在氧化铝催化剂载体的流化床中进行，其上沉积有“软”金属作为活性催化成分，并且用无氮氧含量的流 HCl气体，与蒸汽结合。 在相对于HCl的特定比例范围内的蒸汽抑制游离Cl的产生，而不会使活性催化剂位点发生盲目，使得CHC的转化率总是至少为95％。 该方法包括使气相中的CHC与催化剂载体的流化床接触，其上沉积有效量的活性形式的铁或铜或两者，足以转化超过95％的 CHC以摩尔为基准，床用HCl流化，过热蒸汽和基本上不含氮的氧气。 在使用单个（“催化氧化”）反应器的特定实施方案中，流出物被清除水，未转化的CHC，CO 2和一些HCl，并且剩余的主要是HCl流被再循环到催化反应器中。 在本发明的另一个实施方案中，将来自催化氧化反应器的流出物进料至第二（“氧”）反应器以通过与乙烯，空气和HCl反应产生1,2-二氯乙烷来回收HCl值; 来自催化氧化反应器的流出物有助于使氧反应器中的催化剂流化。

公开(公告)号：US5112793A

公开(公告)日：1992-05-12

申请号：US691647

申请日：1991-04-25

申请人： Angelo J. Magistro

发明人： Angelo J. Magistro

IPC分类号： B01J23/78 ,  B01J23/86 ,  B01J23/889 ,  C07C5/48 ,  C07C17/154

CPC分类号： C07C5/48 ,  B01J23/78 ,  B01J23/862 ,  B01J23/864 ,  B01J23/8892 ,  C07C17/154 ,  Y02P20/52

摘要： Solid solution catalyst in particulate form consisting of attrition resistant .alpha.-Al.sub.2 O.sub.3 particles with 0.5 to 10% by weight, expressed as the oxide, of iron cations substituted for aluminum cations in said catalyst support stabilized with 0.5 to 10% by weight, expressed as the oxide, of lanthanum and modified with at least two, preferably three, metal cations selected from the metals consisting of chromium, cobalt, magnesium, manganese, and barium; wherein one of said metal cations is barium and said catalyst has X-ray diffraction pattern with peak positions different than that of the .alpha.-Al.sub.2 O.sub.3 structure. A process is disclosed which produces ethylene from ethane while producing reduced amounts of vinyl chloride from said ethane to ethylene process.

摘要翻译： 以0.5至10重量％稳定的以所述催化剂载体中的阳离子取代的阳离子的铁阳离子为0.5-10重量％，表示为氧化物的耐磨性α-Al2O3颗粒组成的颗粒形式的固溶体催化剂，以 氧化物，并用选自铬，钴，镁，锰和钡的金属中的至少两种，优选三种金属阳离子进行改性; 其中所述金属阳离子之一是钡，所述催化剂具有不同于α-Al 2 O 3结构的峰位的X射线衍射图。 公开了一种从乙烷生产乙烯，同时从所述乙烷生产减少量的氯乙烯至乙烯工艺的方法。

公开(公告)号：US4874858A

公开(公告)日：1989-10-17

申请号：US173898

申请日：1988-03-28

申请人： Angelo J. Magistro

发明人： Angelo J. Magistro

IPC分类号： C08J5/08 ,  C03C25/10 ,  C03C25/40 ,  C07F7/18 ,  C08K5/544 ,  C09D7/12 ,  C09J11/06 ,  C09J175/04 ,  C09J201/00

CPC分类号： C08K5/5442 ,  C03C25/40 ,  C07F7/182 ,  C09J175/04

摘要： At least three, and as many as eighteen, most preferably at least nine, crosslinking sites are provided through the alkoxy groups in multiple chains on a triazine ring (hence "multisilane"), on a single molecule of the multisilane. The multisilane, useful as a coupling agent, is formed by reacting a triazine-containing compound with a suitable aminoalkyl-alkoxysilane, or, alkyl-aminoalkyl-alkoxysilane in either an anhydrous, or an aqueous liquid medium. A size containing the multisilane, enhances the reinforced properties of organic synthetic resinous materials in which the fibers are used, and most particularly those of rigid poly(vinyl chloride) (PVC) with which it provides cohesive bonding of glass fiber surfaces. Glass fibers coated with a basic film former and the multisilane are covalently bonded on the one hand through some of at least nine alkoxy groups on each of the multisilane molecules, to Si atoms of a glass surface, and on the other hand, through at least some of the amine groups on each of the molecules, to the vinyl chloride (VC) resin in a reaction which involves allylic chloride bonds in the VC resin. The multisilane is effective in adhesives for a wide variety of materials, and in protective coatings.