公开(公告)号：US5541249A

公开(公告)日：1996-07-30

申请号：US629495

申请日：1990-12-18

申请人： O. Richard Hughes ,  Hongkyu Kim ,  Gerd Wingefeld

发明人： O. Richard Hughes ,  Hongkyu Kim ,  Gerd Wingefeld

IPC分类号： B22F3/02 ,  B22F3/22 ,  B28B1/24 ,  C04B35/591 ,  C04B35/622 ,  C04B35/632 ,  C04B35/634 ,  C08K5/54 ,  C08K9/06 ,  C08K3/00

CPC分类号： B22F3/225 ,  B22F3/22 ,  C04B35/591 ,  C04B35/622 ,  C04B35/634 ,  C04B35/63408 ,  C04B35/63416 ,  C04B35/6342 ,  C04B35/63436 ,  C04B35/63448 ,  B22F2998/00

摘要： Provided is an injection moldable composition suitable for forming ceramic or metallic greenbodies. The composition comprises in combination an inorganic or metallic filler in an amount of from about 63 volume percent to about 92 volume percent, a binding organic matrix resin, and an organosilane processing reagent represented by the general formula:SiX.sub.1 X.sub.2 X.sub.3 X.sub.4wherein at least one of X.sub.1, X.sub.2, X.sub.3 or X.sub.4 is an unfunctionalized alkyl or alkenyl group having 10 to 35 carbon atoms and at least one of X.sub.1, X.sub.2, X.sub.3 or X.sub.4 is an alkoxy group or halide, such that the moldable composition exhibits a low initial mixing torque upon mechanical agitation. These compositions offer excellent advantage in processibility using conventional mixing and molding equipment.Also provided is a process for preparing the moldable compositions.

摘要翻译： 提供适合于形成陶瓷或金属绿体的可注射成型组合物。 组合物组合包含约63体积％至约92体积％的无机或金属填料，结合有机基质树脂和由以下通式表示的有机硅烷处理试剂：SiX1X2X3X4，其中X1，X2中的至少一个 ，X 3或X 4是具有10至35个碳原子的未官能化的烷基或烯基，并且X 1，X 2，X 3或X 4中的至少一个是烷氧基或卤化物，使得可机械组合物在机械搅拌时表现出低的初始混合扭矩 。 这些组合物使用常规的混合和成型设备在加工性方面提供极好的优点。 还提供了一种制备可模制组合物的方法。

公开(公告)号：US5080846A

公开(公告)日：1992-01-14

申请号：US436289

申请日：1989-11-13

申请人： Hongkyu Kim ,  Gerd Wingefeld

发明人： Hongkyu Kim ,  Gerd Wingefeld

IPC分类号： B22F3/10 ,  C04B35/634 ,  C04B35/638 ,  C04B41/91

CPC分类号： C04B35/6342 ,  C04B35/634 ,  C04B35/638

摘要： A polyacetal binder is removed from an extruded or injection molded ceramic green body in less than 25 hours by a variable heating rate schedule in which the heating rate is reduced when the temperature of the green body reaches the point at which isothermal degradation of the polyacetal binder can take place and wherein at least 80 wt. % of the binder can be removed. In air, the isothermal removal of the binder can take place within the range of 160.degree.-220.degree. C. while in nitrogen the range is from about 300.degree.-360.degree. C.

摘要翻译： 在不到25小时内，通过可变加热速度表从挤出或注模陶瓷生坯中除去聚缩醛粘合剂，当生坯的温度达到聚缩醛粘合剂的等温降解时，加热速率降低 可以发生并且其中至少80wt。 可以除去粘合剂的％。 在空气中，粘合剂的等温去除可以在160-220℃的范围内进行，而在氮气中，范围是约300-360℃。

公开(公告)号：US5043121A

公开(公告)日：1991-08-27

申请号：US518598

申请日：1990-05-03

申请人： Gerd Wingefeld ,  Walter Hassinger

发明人： Gerd Wingefeld ,  Walter Hassinger

IPC分类号： B28B11/00 ,  C04B35/622 ,  C04B35/632 ,  C04B35/634 ,  C04B35/638 ,  C08G2/36

CPC分类号： C04B35/6342 ,  C04B35/634 ,  C04B35/63488 ,  C04B35/638

摘要： A process for rapidly removing the binder from a greenbody composed of a sinterable powder dispersed within a polyacetal binder is achieved by contacting the molded ceramic greenbody with an acid which depolymerizes the polyacetal binder.

公开(公告)号：US5814289A

公开(公告)日：1998-09-29

申请号：US688354

申请日：1996-07-30

申请人： Alexander Tapper ,  Gunther Schimmel ,  Gerd Wingefeld ,  Hans-Peter Rieck

发明人： Alexander Tapper ,  Gunther Schimmel ,  Gerd Wingefeld ,  Hans-Peter Rieck

IPC分类号： C11D3/12 ,  C01B33/26 ,  C11D7/14

CPC分类号： C11D3/128 ,  C11D3/1273

摘要： Cogranulates of high bulk density which easily disintegrate in water and comprise aluminosilicates and crystalline sodium silicates having a layered structure. The aluminosilicates contained therein are those of the formula M.sub.2/n O.Al.sub.2 O.sub.3. XSiO.sub.2. yH.sub.2 O in which M is an alkali metal or alkaline earth metal, n indicates the valency of the cation, x is.gtoreq.2 and y has a value of between 0 and 8. The sodium silicates have an SiO.sub.2 /Na.sub.2 O ratio of (1.8 to 4.2):1. These cogranulates are prepared by mixing the pulverulent aluminosilicates and sodium silicates with one another and introducing the mixture into a zone in which it is compacted between two rolls rotating in opposite directions to form a compact. After comminution of the compact, the desired particle sizes are finally separated off from the oversize and undersize material. The cogranulates can be used in detergents and cleaning agents.

摘要翻译： 高堆积密度的钙质，其容易在水中分解并且包含具有层状结构的硅铝酸盐和结晶硅酸钠。 其中含有的硅铝酸盐是式M2 / nO.Al2O3的硅铝酸盐。 XSiO2。 yH 2 O，其中M是碱金属或碱土金属，n表示阳离子的化合价，x是≥2，y的值在0和8之间。硅酸钠的SiO 2 / Na 2 O比为（1.8 至4.2）：1。 通过将粉状硅铝酸盐和硅酸钠彼此混合并将混合物引入到在相反方向上旋转的两个辊之间被压实的区域中以形成压块，来制备这些cogranulate。 粉碎粉碎后，最终从尺寸过大和尺寸过小的材料中分离所需的粒径。 可以在洗涤剂和清洁剂中使用。

公开(公告)号：US5268156A

公开(公告)日：1993-12-07

申请号：US839935

申请日：1992-02-21

申请人： Gunther Schimmel ,  Michael Kotzian ,  Alexander Tapper ,  Gerd Wingefeld

发明人： Gunther Schimmel ,  Michael Kotzian ,  Alexander Tapper ,  Gerd Wingefeld

IPC分类号： C01B33/32 ,  C01B33/38 ,  C01B33/24

CPC分类号： C01B33/38

摘要： To prepare crystalline sodium silicates having a laminated structure, a molar ratio of SiO.sub.2 to Na.sub.2 O of (1.9 to 2.1) 1 and a water content of less than 0.3% by weight from a water glass solution which has a solids content of at least 20% by weight and is obtained by reaction of sand with sodium hydroxide solution in a molar ratio of SiO.sub.2 : Na.sub.2 O of (2.0 to 2.3) : 1, the water glass solution is treated with hot air of 200.degree. to 300.degree. C. in a spray drying zone to form a pulverulent, amorphous sodium silicate having a water content (determined as the loss on ignition at 700.degree. C.) of 15 to 23% by weight. The pulverulent, amorphous, water-containing sodium silicate is first ground, preferably to particle sizes of 1 to 50 .mu.m, before it is introduced into an inclined rotary tubular oven and treated in this in countercurrent with flue gas at temperatures of more than 500.degree. to 850.degree. C. to form crystalline sodium silicate. The sodium silicate issuing from the rotary tubular oven is first comminuted to particle sizes of 0.1 to 12 mm and finally ground to particle sizes of 2 to 400 .mu.m.

摘要翻译： 为了制备具有层压结构的结晶硅酸钠，（1.9-2.1）1的SiO 2与Na 2 O的摩尔比和固含量至少为20％的水玻璃溶液的含水量小于0.3重量％ ，通过砂（SiO 2 :Na 2 O）摩尔比为（2.0〜2.3）：1的砂与氢氧化钠溶液的反应得到，水玻璃溶液用200〜300℃的热风喷雾 干燥区形成15〜23重量％的含水量（以700℃测定为灼烧损失的粉末状）无定形硅酸钠。 粉末状，无定形的含水硅酸钠首先被研磨，优选为1至50μm的粒度，然后将其引入倾斜的旋转管式炉中，并在与500℃以上的温度下与烟道气逆流处理 DEG至850℃，形成结晶硅酸钠。 从旋转管式炉排出的硅酸钠首先粉碎成0.1〜12mm的粒径，最后研磨成2〜400μm的粒径。