-
1.发明授权Spheroidal alumina particulates having bifold porosity and process for their preparation 失效具有双孔孔隙的球状氧化铝颗粒及其制备方法
公开(公告)号：US4315839A
公开(公告)日：1982-02-16
申请号：US124778
申请日：1980-02-26
CPC分类号： B01J21/04 , B01J2/08 , B01J35/10 , C01F7/02 , C01F7/141 , B01J35/1019 , B01J35/1042 , B01J35/1061 , B01J35/109 , C01P2002/02 , C01P2002/60 , C01P2002/70 , C01P2004/32 , C01P2004/61 , C01P2006/12 , C01P2006/13 , C01P2006/14 , C01P2006/16 , C01P2006/21 , Y10S502/503
摘要： Spheroidal alumina particulates having bifold porosity are prepared by (i) intimately admixing, at a pH of less than about 7.5, (a) a sol of a member selected from the group consisting of ultrafine boehmite and pseudo-boehmite, said sol being devoid of amorphous alumina and the concentration by weight thereof, in content by weight of Al.sub.2 O.sub.3, being between 5 and 25%, with (b) from 30 to 95% by weight, based upon the total solids content of the admixture, of spheroidal alumina particulates essentially completely in at least one of the phases eta, gamma, delta and theta, such particulates having a micropore volume ranging from about 0.4 to 1 cm.sup.3 /g, a specific surface ranging from about 100 to 350 m.sup.2 /g, and particle diameters ranging from about 1 to 50 microns; (ii) prilling said intimate admixture into spheroidal particulates and gelling the same; and then, (iii) recovering, drying and calcining said gelled particulates at a temperature of from 550.degree. to 1100.degree. C.The resultant particulates having bifold porosity are useful as catalysts or catalyst supports.
摘要翻译： 通过（i）在小于约7.5的pH下，（a）选自由超细勃姆石和假勃姆石组成的组中的成员的溶胶紧密混合，制备具有双重孔隙度的球状氧化铝颗粒，所述溶胶不含 无定形氧化铝及其以Al 2 O 3的重量含量为5-25％的重量浓度，（b）基于混合物的总固体含量为30至95重量％，基本上为球形氧化铝颗粒 完全在相中的至少一个阶段eta，γ，δ和θ，这样的微粒具有约0.4至1cm 3 / g的微孔体积，约100至350m 2 / g的比表面积， 约1至50微米; （ii）将所述紧密混合物造粒成球状颗粒并凝胶化; 然后，（iii）在550℃至1100℃的温度下回收，干燥和煅烧所述凝胶状颗粒。所得到的具有二叉孔隙的颗粒可用作催化剂或催化剂载体。
-
公开(公告)号：US4438042A
公开(公告)日：1984-03-20
申请号：US378226
申请日：1982-05-14
IPC分类号： C07B61/00 , B01J21/00 , B01J27/12 , C07C67/00 , C07C253/00 , C07C255/32 , C07C255/33 , C07C255/49 , C07C255/50 , C07C255/54 , C07C313/00 , C07C323/62 , C07C120/10
CPC分类号： B01J27/12 , C07C253/20
摘要： Aromatic/aliphatic nitriles having the formula:Ar--A--CN (I)wherein Ar is phenyl or substituted phenyl and A is a direct chemical bond or a hydrocarbon having from 1 to 6 carbon atoms, are conveniently prepared by heating to a temperature ranging from about 450.degree. C. to about 550.degree. C. a formamide or formanilide having the formula:Ar--A--NHCHO (II)or an amide having the formula:Ar--A--CONH.sub.2 (III)in the presence of a fluorinated siliceous catalyst, said catalyst having been prepared by (i) impregnating a particulate silica prepared by the precipitation of sodium silicate with sulfuric acid, with a dilute aqueous solution of hydrofluoric acid, said hydrofluoric acid solution having a concentration in HF of less than about 5% by weight, and the ratio by weight of the hydrofluoric acid contained in said aqueous solution thereof to the silica being less than about 5%, followed by (ii) drying the catalyst thus impregnated.
摘要翻译： 具有下式的芳族/脂族腈通过加热至温度范围，方便地制备，其中Ar为苯基或取代苯基，A为直接化学键，或具有1至6个碳原子的烃 具有下式的Ar-A-NHCHO（II）或具有式Ar-A-CONH 2（III）的酰胺的甲酰胺或甲酰苯胺在氟化硅质存在下的约450℃至约550℃。 催化剂，所述催化剂通过（i）用硫酸沉淀硅酸钠制备的颗粒二氧化硅与稀氢氟酸水溶液浸渍制备，所述氢氟酸溶液的HF浓度小于约5％ ，并且所述水溶液中所含的氢氟酸与二氧化硅的重量比小于约5％，然后（ii）干燥所浸渍的催化剂。
-
3.发明授权Fluorinated silica catalyst and preparation of aromatic/aliphatic nitriles in the presence thereof 失效氟化二氧化硅催化剂和芳香族/脂肪族腈的制备
公开(公告)号：US4504595A
公开(公告)日：1985-03-12
申请号：US378192
申请日：1982-05-14
IPC分类号： C01B33/12 , B01J21/00 , B01J21/08 , B01J27/00 , B01J27/12 , B01J35/10 , C01B33/154 , C07C67/00 , C07C253/00 , C07C253/20 , C07C255/33 , C07C255/49 , C07C255/50 , C07C255/53 , B01J27/10 , C07C120/10
CPC分类号： B01J21/08 , B01J27/12 , B01J35/0026 , B01J35/1019 , B01J35/1047 , B01J35/1061 , C01B33/154 , C07C253/20
摘要： An improved fluorinated siliceous catalyst, well adapted for the catalytic synthesis of aromatic/aliphatic nitriles from their corresponding formamides, formanilides or amides, is comprised of a plurality of silica particulates, the specific surface of which ranging from about 200 to about 300 m.sup.2 /g, having a total pore volume ranging from about 1 to about 1.5 cm.sup.3 /g, with an average pore diameter ranging from about 100 to about 200 .ANG., having an exchange pH of less than about 3, and with the fluorine content thereof bonded to the silica, expressed in F.sup.-, ranging from about 0.05 to about 2% by weight based upon the silica, and the sodium content thereof, expressed as Na.sub.2 O, being less than about 1% by weight, also based upon the silica.
摘要翻译： 一种改进的氟化硅质催化剂，其适用于从其相应的甲酰胺，甲酰苯胺或酰胺催化合成芳族/脂族腈，由多种二氧化硅微粒组成，其二氧化硅微粒的比表面积约为200-300m2 / g ，具有约1至约1.5cm 3 / g的总孔体积，平均孔径范围为约100至约200ANGSTROM，交换pH小于约3，并且其含氟量与 以二氧化硅计，基于二氧化硅的约0.05至约2重量％的二氧化硅，以Na 2 O表示的钠含量小于约1重量％，也基于二氧化硅。
-
公开(公告)号：US4273735A
公开(公告)日：1981-06-16
申请号：US70866
申请日：1979-08-29
申请人： Roland Jacques , Regis Poisson
发明人： Roland Jacques , Regis Poisson
CPC分类号： C01F7/02 , B01J2/08 , B01J21/04 , B01J35/08 , C01P2004/32 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/21 , Y10S502/511
摘要： Spheroidal alumina shaped articles are prepared by dispersing an ungelled admixture of an alumina sol and hexamethylenetetramine, in the form of droplets, into a liquid forming medium which is but very slightly miscible with water, said medium being at a temperature of between about 50.degree. and 105.degree. C., next aging the alumina spheres thus shaped at a temperature greater than about 105.degree. C. at superatmospheric pressure, then secondarily aging said alumina spheres in a basic medium, and thence washing, drying and calcining said aged alumina spheres.The resultant shaped articles are useful, e.g., catalysts or catalyst carriers/supports.
摘要翻译： 球形氧化铝成形制品通过将水溶液形式的氧化铝溶胶和六亚甲基四胺的未凝胶化的混合物分散在液体形成介质中而制备，该液体形成介质与水非常轻微地混溶，所述介质的温度在约50℃和 接着老化氧化铝球，在超大气压下在大于约105℃的温度下成形，然后在碱性介质中二次老化所述氧化铝球，然后洗涤，干燥和煅烧所述老化的氧化铝球体。 得到的成形制品是有用的，例如催化剂或催化剂载体/载体。
-
5.发明授权Fluorinated silica catalyst and preparation of aromatic/aliphatic nitriles in the presence thereof 失效氟化二氧化硅催化剂和芳香族/脂肪族腈的制备
公开(公告)号：US4822903A
公开(公告)日：1989-04-18
申请号：US866739
申请日：1986-05-27
IPC分类号： C01B33/12 , B01J21/00 , B01J21/08 , B01J27/00 , B01J27/12 , B01J35/10 , C01B33/154 , C07C67/00 , C07C253/00 , C07C253/20 , C07C255/33 , C07C255/49 , C07C255/50 , C07C255/53 , C07C120/10
CPC分类号： B01J21/08 , B01J27/12 , B01J35/0026 , B01J35/1019 , B01J35/1047 , B01J35/1061 , C01B33/154 , C07C253/20
摘要： An improved fluorinated siliceous catalyst, well adapted for the catalytic synthesis of aromatic/aliphatic nitriles from their corresponding formamides, formanilides or amides, is comprised of a plurality of silica particulates, the specific surface of which ranging from about 200 to about 300 m.sup.2 /g, having a total pore volume ranging from about 1 to about 1.5 cm.sup.3 /g, with an average pore diameter ranging from about 100 to about 200 .ANG., having an exchange pH of less than about 3, and with the fluorine content thereof bonded to the silica, expressed in F.sup.31 , ranging from about 0.05 to about 2% by weight based upon the silica, and the sodium content thereof, expressed as Na.sub.2 O, being less than about 1% by weight, also based upon the silica.
摘要翻译： 一种改进的氟化硅质催化剂，其适用于从其相应的甲酰胺，甲酰苯胺或酰胺催化合成芳族/脂族腈，由多种二氧化硅微粒组成，其二氧化硅微粒的比表面积约为200-300m2 / g ，具有约1至约1.5cm 3 / g的总孔体积，平均孔径范围为约100至约200ANGSTROM，交换pH小于约3，并且其含氟量与 基于二氧化硅，以F31计，约0.05至约2重量％，以Na 2 O表示的钠含量小于约1重量％的硅石，也以二氧化硅为基准。
-
公开(公告)号：US4436669A
公开(公告)日：1984-03-13
申请号：US378191
申请日：1982-05-14
IPC分类号： C07B61/00 , B01J21/00 , B01J27/12 , C07C67/00 , C07C253/00 , C07C255/32 , C07C255/33 , C07C255/49 , C07C255/50 , C07C255/54 , C07C120/10
CPC分类号： B01J27/12 , C07C253/20
摘要： Aromatic/aliphatic nitriles having the formula:Ar--A--CN (I)wherein Ar is phenyl or substituted phenyl and A is a direct chemical bond or a hydrocarbon having from 1 to 6 carbon atoms, are conveniently prepared by heating to a temperature ranging from about 450.degree. C. to about 550.degree. C. a formamide or formanilide having the formula:Ar--A--NHCHO (II)or an amide having the formulaAr--A--CONH.sub.2 (III)in the presence of a fluorinated siliceous catalyst, said catalyst having been prepared by (i) impregnating a particulate silica containing from about 0.05 to about 2% by weight of fluorine, expressed as F.sup.- bonded to the silica, with a dilute aqueous solution of hydrofluoric acid, said hydrofluoric acid solution having a concentration in HF of less than about 5% by weight, and the ratio by weight of the hydrofluoric acid contained in said aqueous solution thereof to the silica being less than about 5%, followed by (ii) drying the catalyst thus impregnated.
摘要翻译： 具有下式的芳族/脂族腈通过加热至温度范围，方便地制备，其中Ar为苯基或取代苯基，A为直接化学键，或具有1至6个碳原子的烃 具有式Ar-A-NHCHO（II）或具有式Ar-A-CONH 2（III）的酰胺的甲酰胺或甲酰苯胺在氟化硅质催化剂存在下的约450℃至约550℃ 所述催化剂是通过以下步骤制备的：（i）用稀氢氟酸水溶液浸渍含有约0.05至约2重量％的以F-键合到二氧化硅的氟的颗粒状二氧化硅，所述氢氟酸溶液具有 HF中的浓度小于约5重量％，并且所述水溶液中所含的氢氟酸与二氧化硅的重量比小于约5％，随后（ii）干燥所浸渍的催化剂。
-
公开(公告)号：US4931134A
公开(公告)日：1990-06-05
申请号：US394065
申请日：1989-08-15
申请人： Zvi Hatkevitz , Ken Maylor , Roland Jacques
发明人： Zvi Hatkevitz , Ken Maylor , Roland Jacques
IPC分类号： H05K3/00
CPC分类号： H05K3/4691 , H05K3/0035 , H05K2201/09781 , H05K2203/0207 , H05K2203/0264 , H05K2203/107 , H05K3/0017 , Y10S428/901 , Y10T29/49155 , Y10T428/24917
摘要： A method of fabricating a multilayer circuit board having rigid and flexible sections using Z-axis laser routing. A rigid superstructure is provided for lamination to a flexible circuit substrate, wherein the superstructure includes specially configured strips of laser reflective material, disposed on the laminating surface thereof, defining the boundary between the rigid and flexible sections of the multilayer circuit board. In subsequent processing, a beam of laser energy is directed through the rigid superstructure, along the Z-axis thereof, superjacent to each strip of laser reflective material, thereby cutting through the material of the superstructure creating a laser routed channel which forms an interface between the rigid and flexible sections of the finished multilayer circuit board. In a further step, the portion of the rigid superstructure residing between the laser routed channels is separated and removed, there by exposing the underlying flexible substrate, resulting in a flexible section on an otherwise rigid laminated composite and creating a multilayer rigid/flex circuit board.
摘要翻译： 一种使用Z轴激光路由制造具有刚性和柔性部分的多层电路板的方法。 提供了一种用于层叠到柔性电路基板的刚性上层结构，其中上层结构包括设置在其层压表面上的特殊配置的激光反射材料条，限定了多层电路板的刚性和柔性部分之间的边界。 在随后的处理中，激光能量束沿其Z轴被引导穿过激光反射材料的每条带的上方结构，从而切割穿过上层结构的材料，形成激光路由通道，其形成在 成品多层电路板的刚性和柔性部分。 在另一步骤中，位于激光路由通道之间的刚性上部结构的部分被分离和去除，在那里通过暴露下面的柔性基底，导致在另外刚性的层压复合材料上的柔性部分，并且形成多层刚性/柔性电路板 。
-
公开(公告)号：US4514511A
公开(公告)日：1985-04-30
申请号：US496138
申请日：1983-05-19
申请人： Roland Jacques , Thierry Dupin
发明人： Roland Jacques , Thierry Dupin
CPC分类号： B01J35/08 , B01J2/08 , B01J21/04 , C01F7/025 , C01P2004/32 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/17 , C01P2006/22
摘要： Spheroidal alumina particulates well adapted as catalysts or catalyst supports and having enhanced pore volumes are facilely prepared by drop coagulating an aqueous suspension or dispersion of alumina, or an aqueous solution of a basic aluminum salt, said suspension, dispersion or solution comprising an oil-in-water emulsion, and then recovering, drying and calcining the gelled particulates which result.
摘要翻译： 充分适应催化剂或催化剂载体并且具有增强的孔体积的球形氧化铝颗粒通过将氧化铝的水性悬浮液或分散体或碱性铝盐的水溶液，所述悬浮液，分散体或包含油的溶液 - 水乳液，然后回收，干燥和煅烧产生的凝胶颗粒。
-
公开(公告)号：US4704374A
公开(公告)日：1987-11-03
申请号：US885676
申请日：1986-07-15
申请人： Roland Jacques
发明人： Roland Jacques
CPC分类号： B01J21/08
摘要： Mechanically strong, H.sub.2 O-stable, macroporous spheroidal silica particulates, well adopted as catalysts/catalyst supports, are produced by (i) granulating and agglomerating a particular hydrosol of silica with a particular silica xerogel or aerogel, and (ii) drying the resultant silica particulates.
-
公开(公告)号：US4851613A
公开(公告)日：1989-07-25
申请号：US204113
申请日：1988-06-08
申请人： Roland Jacques
发明人： Roland Jacques
CPC分类号： H05K1/0393 , H05K1/028 , H05K1/0366 , H05K2201/0278 , H05K2201/029 , H05K2201/09036 , H05K2201/0989 , H05K3/281
摘要： The disclosed invention provides a flexible circuit board for use in surface mount technology. A polyaramid fiber reinforced resin provides a substrate for a copper cladding in which a circuit is formed. Overlaying the circuitry are a plurality of spaced insulating pads also reinforced with polyaramid fiber for dimensional stability. The spaces insulated pads define fold-lines along which the circuit may be folded, thereby providing a degree of flexibility required for flexible circuit applications.
摘要翻译： 所公开的发明提供了一种用于表面贴装技术的柔性电路板。 聚芳酰胺纤维增强树脂提供了其中形成电路的铜包层的基底。 覆盖电路是多个间隔绝缘垫，其还用聚芳酰胺纤维增强，用于尺寸稳定性。 空间绝缘垫定义折叠线，电路可沿着折叠线折叠，从而提供柔性电路应用所需的一定程度的灵活性。
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.022 秒)
