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公开(公告)号：US20100305301A1
公开(公告)日：2010-12-02
申请号：US12475034
申请日：2009-05-29
CPC分类号： B29B13/065 , B29K2009/06
摘要： In the production of elastomers the product obtained from the polymerization process is often in the form of a slurry. Described herein are an apparatus and a process for “finishing” the elastomer, i.e., dewatering and drying the elastomer. The process comprises the steps of obtaining a slurry comprising water and elastomer; passing the slurry through a first dewatering device to produce a wet elastomer crumb, wherein the first dewatering device comprises two dewatering extruders in parallel; passing the wet elastomer crumb through a second dewatering device; and then passing the wet elastomer crumb through a drying device to produce a dried elastomer crumb.
摘要翻译： 在弹性体的生产中，从聚合过程获得的产物通常是浆料的形式。 本文描述了用于“完成”弹性体的设备和方法，即，使弹性体脱水和干燥。 该方法包括获得包含水和弹性体的浆料的步骤; 使浆料通过第一脱水装置以产生湿弹性体碎屑，其中第一脱水装置包括两个平行的脱水挤出机; 将湿弹性体碎屑通过第二脱水装置; 然后将湿弹性体碎屑通过干燥装置以产生干燥的弹性体碎屑。
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公开(公告)号：US07858735B2
公开(公告)日：2010-12-28
申请号：US12475034
申请日：2009-05-29
CPC分类号： B29B13/065 , B29K2009/06
摘要： In the production of elastomers the product obtained from the polymerization process is often in the form of a slurry. Described herein are an apparatus and a process for “finishing” the elastomer, i.e., dewatering and drying the elastomer. The process comprises the steps of obtaining a slurry comprising water and elastomer; passing the slurry through a first dewatering device to produce a wet elastomer crumb, wherein the first dewatering device comprises two dewatering extruders in parallel; passing the wet elastomer crumb through a second dewatering device; and then passing the wet elastomer crumb through a drying device to produce a dried elastomer crumb.
摘要翻译： 在弹性体的生产中，从聚合过程获得的产物通常是浆料的形式。 本文描述了用于“完成”弹性体的设备和方法，即，使弹性体脱水和干燥。 该方法包括获得包含水和弹性体的浆料的步骤; 使浆料通过第一脱水装置以产生湿弹性体碎屑，其中第一脱水装置包括两个平行的脱水挤出机; 将湿弹性体碎屑通过第二脱水装置; 然后将湿弹性体碎屑通过干燥装置以产生干燥的弹性体碎屑。
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公开(公告)号：US5434221A
公开(公告)日：1995-07-18
申请号：US103879
申请日：1993-08-09
IPC分类号： C08F8/50 , C08F212/06
CPC分类号： B29C47/92 , C08F8/50 , B29C2947/92704 , B29C47/0004 , B29C47/38 , B29C47/805 , C08F110/10 , C08F2810/10 , Y10S525/938
摘要： A process is provided for producing a low molecular weight isoolefin polymer by contacting at conversion conditions a higher molecular weight saturated isoolefin polymer, for example, polyisobutylene or a copolymer of a C.sub.4 to C.sub.7 isoolefin and a para-alkylstyrene, in the melt phase, with an initiator, such as an oxygen-containing gas, an organic peroxide or an azo compound.
摘要翻译： 提供了一种制备低分子量异烯烃聚合物的方法，该方法是在转化条件下使熔融相中的高分子量饱和异烯烃聚合物例如聚异丁烯或C 4 -C 7异烯烃与对烷基苯乙烯的共聚物与熔融相接触， 引发剂，例如含氧气体，有机过氧化物或偶氮化合物。
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公开(公告)号：US5085815A
公开(公告)日：1992-02-04
申请号：US456807
申请日：1989-12-26
申请人： Richard C. Yeh , Shiaw T. Ju
发明人： Richard C. Yeh , Shiaw T. Ju
CPC分类号： B29B9/12 , B29B9/06 , B29K2021/00 , B29K2105/251
摘要： A process for the recovery of dry polymer, wherein a polymer material containing water and/or volatile hydrocarbons is extruded through a die sleeve, cut into particles by means of a cutter mounted at the die discharge, and carried away from the cutter by an air stream. The die sleeve is provided with a plurality of die holes possessing a non-circular derived shape, which allow the material to be dried at lower temperatures and pressures. The cutter is a cage-type cylinder presenting large open areas for the flow of conveying air, thereby significantly reducing the local air velocity through the cutter and tearing of the particles. A bypass is provided to insure sufficient air being present after the cutter region to prevent condensation and to provide crumb transportation through the transport conduit. The invention reduces the generation of fines and results in an increase in the average particle size.
摘要翻译： 用于回收干燥聚合物的方法，其中含有水和/或挥发性烃的聚合物材料通过模头套筒挤出，通过安装在模具排出口处的切割器切割成颗粒，并通过空气从切割器中携带 流。 模具套筒设置有多个具有非圆形衍生形状的模孔，这允许材料在较低的温度和压力下被干燥。 切割机是一种笼式滚筒，其具有用于输送空气流动的大的开放区域，从而显着地减少通过切割器的局部空气速度和颗粒的撕裂。 提供旁路以确保在切割器区域之后存在足够的空气以防止冷凝并且通过输送管道提供碎屑输送。 本发明减少细粉的产生并导致平均粒度的增加。
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公开(公告)号：US4776269A
公开(公告)日：1988-10-11
申请号：US931070
申请日：1986-11-17
CPC分类号： B29B15/02 , B29B13/06 , B29K2021/00
摘要： A method for agglomerating and dewatering elastomeric material having a relatively high water content wherein the elastomeric material is fed to a pair of counterrotating pressing rolls with a tight nip opening. The elastomeric material is drawn through the nip opening and compacted and dewatered therein. The method of the present invention produces at least a doubling of the particle size of the feed material and a reduction in the water content of the feed material in the range of 30 to 80%.
摘要翻译： 一种用于使具有相对较高含水量的弹性体材料的聚集和脱水的方法，其中将弹性体材料供给到具有紧的压区开口的一对反向旋转压辊。 弹性体材料通过辊隙开口被压缩并在其中脱水。 本发明的方法至少使进料的粒度加倍并且进料的含水量降低在30-80％的范围内。
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公开(公告)号：US06517335B1
公开(公告)日：2003-02-11
申请号：US09347206
申请日：1999-07-02
IPC分类号： B29C4792
CPC分类号： B29C47/762 , B29C47/0009 , B29C47/92 , B29C2947/92161 , B29C2947/924 , B29C2947/92657 , B29C2947/92895 , B29K2023/06 , B29K2023/12 , B29K2023/16 , B29K2023/22 , C08L53/02
摘要： An apparatus for dewatering a slurry of elastomeric polymer and water, using an extruder or extruders provided with a device for measuring an actual water content of the elastomer at a position within the extruder or extruders, and a control system for controlling the moisture content of elastomeric polymer exiting the extruder or extruders through an exit die based, at least in part, on the measured water content.
摘要翻译： 一种用于使用挤出机或挤出机对挤出机或挤出机内的位置测量弹性体的实际含水量的装置的挤出机或挤出机进行脱水的装置，以及用于控制弹性体和挤出机中水分含量的控制系统 至少部分地基于测量的水含量离开挤出机或挤出机通过出口模具的聚合物。
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公开(公告)号：US06448322B1
公开(公告)日：2002-09-10
申请号：US09382962
申请日：1999-08-25
IPC分类号： C08K300
CPC分类号： C08K3/22 , C08F8/20 , C08K3/26 , C08L23/283 , C08F210/10 , C08L15/02
摘要： Halogenated isobutylene-p-methylstyrene polymers are stabilized against discoloration with a weak base such as 100 to 500 ppm sodium bicarbonate. The additive is added to the rubbery polymers after dewatering in the finishing step of their manufacture. The curability of the stabilized rubbers is not adversely affected by the sodium bicarbonate additive.
摘要翻译： 卤化异丁烯 - 对甲基苯乙烯聚合物通过弱碱（如100-500ppm碳酸氢钠）稳定，防止变色。 在其制造的精加工步骤中，在脱水后将添加剂加入到橡胶状聚合物中。 稳定的橡胶的固化性不受碳酸氢钠添加剂的不利影响。
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公开(公告)号：US5262489A
公开(公告)日：1993-11-16
申请号：US23462
申请日：1993-02-25
IPC分类号： C08F8/50
CPC分类号： B29C47/92 , C08F8/50 , B29C2947/92704 , B29C47/0004 , B29C47/38 , B29C47/805 , C08F2810/10 , Y10S525/938
摘要： A process is provided for producing a low molecular weight isoolefin polymer by contacting at conversion conditions a higher molecular weight saturated isoolefin polymer, for example, polyisobutylene or a copolymer of a C.sub.4 to C.sub.7 isoolefin and a para-alkylstyrene, in the melt phase, with an initiator, such as an oxygen-containing gas, an organic peroxide or an azo compound.
摘要翻译： 提供了一种制备低分子量异烯烃聚合物的方法，该方法是在转化条件下使熔融相中的高分子量饱和异烯烃聚合物例如聚异丁烯或C 4 -C 7异烯烃与对烷基苯乙烯的共聚物与熔融相接触， 引发剂，例如含氧气体，有机过氧化物或偶氮化合物。
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公开(公告)号：US5041249A
公开(公告)日：1991-08-20
申请号：US456369
申请日：1989-12-26
申请人： Richard C. Yeh
发明人： Richard C. Yeh
CPC分类号： F26B7/00 , B29B13/065 , B29B15/02 , B29C2035/1658 , B29K2021/00 , B29K2105/251
摘要： A finishing process for water-slurried elastomers wherein a partially dewatered elastomer is presented to an enclosed, low shear, self-cleaning, long residence time dryer for drying at low temperatures in order to remove the remaining water and residual volatiles. The dried product is then cooled in a pneumatic conveyor to temperatures required for baling.
摘要翻译： 对于水 - 浆状弹性体的精加工方法，其中部分脱水的弹性体被提供到封闭的低剪切，自清洁的长停留时间干燥器中，以在低温下干燥以除去剩余的水和残余挥发物。 然后将干燥的产品在气动输送机中冷却至打包所需的温度。
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