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1. 发明授权

US4485210A Process for the continuous production of star-block copolymers of a monovinyl aromatic monomer and a conjugated diene 失效
标题翻译：用于连续生产单乙烯基芳族单体和共轭二烯的星形嵌段共聚物的方法
公开(公告)号：US4485210A
公开(公告)日：1984-11-27
申请号：US482385
申请日：1983-04-06
申请人： David S. Neiditch , Gerald A. Bullano , Robert J. DiLullo , David E. Ofstein
发明人： David S. Neiditch , Gerald A. Bullano , Robert J. DiLullo , David E. Ofstein
IPC分类号： B01J19/18 , C08F297/04 , C08G81/02
CPC分类号： C08G81/022 , B01J19/18 , B01J19/1862 , C08F297/044 , B01J2219/00103 , B01J2219/00159 , B01J2219/00162 , B01J2219/00164 , B01J2219/185
摘要： A continuous process for producing star-block copolymer of a monovinyl aromatic monomer and a conjugated diene by continuously forming a vinyl aromatic polymer having a low weight average molecular weight to number average molecular weight ratio in a first reactor by anionic initiation in a solution of inert solvent; discharging a solution of polymer from the first reactor and passing the solution to a second sealed, cylindrical, pressurized, vertical reactor having a bottom zone, top zone and a plurality of intermediate zones separated by separation plates, each having a central aperture and mixing shaft passing therethrough, with the mixture passing to successive zones through an annular space formed between the shaft and each separation plate. The continuously produced solution of diblock copolymer is removed from the top zone of the second reactor and mixed with a polyfunctional coupling agent in a third reactor to produce a solution of star-block copolymer, with that solution discharged from the third reactor and contacted with a terminating agent, and the resultant star-block copolymer separated from the solvent.
摘要翻译：通过连续形成在惰性溶液中通过阴离子引发在第一反应器中具有低重均分子量与数均分子量比的乙烯基芳族聚合物，生产单乙烯基芳族单体和共轭二烯的星形嵌段共聚物的连续方法溶剂; 从第一反应器排出聚合物溶液并将溶液通过第二密封的，圆柱形的，加压的立式反应器，该反应器具有由分隔板隔开的底部区域，顶部区域和多个中间区域，每个中间区域具有中心孔和混合轴通过其中混合物通过形成在轴和每个分离板之间的环形空间通过连续的区域。将连续生产的二嵌段共聚物溶液从第二反应器的顶部区域除去，并与第三反应器中的多官能偶联剂混合以产生星形嵌段共聚物溶液，该溶液从第三反应器排出并与终止剂和从溶剂中分离的所得星形嵌段共聚物。

2. 发明授权

US4442273A Process and apparatus for continuous polymerization of a monovinyl aromatic monomer 失效
标题翻译：用于连续聚合单乙烯基芳族单体的方法和设备
公开(公告)号：US4442273A
公开(公告)日：1984-04-10
申请号：US482391
申请日：1983-04-06
申请人： David S. Neiditch , Gerald A. Bullano , Robert J. DiLullo , David E. Ofstein
发明人： David S. Neiditch , Gerald A. Bullano , Robert J. DiLullo , David E. Ofstein
IPC分类号： B01J19/00 , B01J19/18 , C08F2/06
CPC分类号： B01J19/006 , B01J19/1862 , B01J2219/00094 , B01J2219/00159 , B01J2219/00162 , B01J2219/00777 , B01J2219/185
摘要： A process and apparatus for the continuous polymerization of monovinyl aromatic monomers, such as styrene, to produce a substantially monodisperse polymer, wherein a solution of monomer in an inert solvent and a hydrocarbyllithium initiator are fed to the bottom zone of a sealed, cylindrical, pressurized, vertical reactor having a plurality of zones, with separation plates separating the reactor into a bottom, a plurality of intermediate, and top zones, the separation plates each having a central aperture, and a mixing means for each zone has a shaft extending through the apertures to provide an annular space for flow of fluid through the zones, the annular space between each separation plate and the shaft of the mixing means being of a size to provide a pressure differential between adjacent zones of less than about one pound per square inch, a substantially monodisperse polymer in solution discharged from the top zone of the reactor.
摘要翻译：用于连续聚合单乙烯基芳族单体如苯乙烯的方法和装置，以产生基本上单分散的聚合物，其中将单体在惰性溶剂和烃基锂引发剂中的溶液进料到密封的圆柱形加压的底部区域具有多个区域的立式反应器，其中分离板将反应器分成底部，多个中间和顶部区域，每个分隔板具有中心孔，并且每个区域的混合装置具有延伸通过孔以提供用于流过所述区域的流体的环形空间，每个分离板和混合装置的轴之间的环形空间具有提供小于约1磅/平方英寸的相邻区域之间的压力差的尺寸，从反应器的顶部区域排出的溶液中的基本上单分散的聚合物。

3. 发明授权

US4728275A Multi-bladed disc cutter for underwater pelletizers 失效
标题翻译：多用于水下造粒机的圆盘切割机
公开(公告)号：US4728275A
公开(公告)日：1988-03-01
申请号：US909048
申请日：1986-09-18
申请人： Robert J. DiLullo , David E. Ofstein
发明人： Robert J. DiLullo , David E. Ofstein
IPC分类号： B29B9/06
CPC分类号： B29B9/065 , Y10S83/906 , Y10T83/2068 , Y10T83/8772
摘要： Multi-bladed disc cutter for cutting into pellets thermoplastic material extruded from a die plate of an underwater pelletizer, wherein the blades of the cutter are integrally formed on the periphery of a backplate and radially project therefrom, the sidewalls of the blades being integrally connected by shroud members to provide added strength against bending and twisting of the blades under load. Perforations are provided in the shroud members and backplate to permit passage of water to cool and flush away the cut pellets. Additionally, integrally formed blades may be arranged in concentric circles inwardly of the periphery of the backplate. The integral of the disc cutters avoids weakening and misalignment of the blades, saves space and permits a greater number of cutting edges than is possible in disc cutters wherein the blades are fastened to a hole by bolts. Casting the cutter integrally with its blades permits off-line grinding for final alignment purposes.
摘要翻译：用于切割成从水下造粒机的模板中挤出的热塑性材料的多叶片式切割机，其中刀片的刀片一体地形成在背板的周边上并从其径向突出，叶片的侧壁通过护罩构件，以在负载下为刀片的弯曲和扭转提供增加的强度。在护罩构件和背板中提供穿孔以允许水通过冷却并冲洗切割的小球。此外，整体形成的叶片可以布置在背板的周边内部的同心圆中。盘式切割机的整体避免了刀片的削弱和不对准，节省了空间，并且允许比通过螺栓固定到孔的盘式切割机中更多的切割刃。将刀片与其刀片一体铸造允许离线研磨以进行最终对准。

4. 发明授权

US4855179A Production of nonwoven fibrous articles 失效
标题翻译：非织造纤维制品的生产
公开(公告)号：US4855179A
公开(公告)日：1989-08-08
申请号：US79312
申请日：1987-07-29
申请人： Larry G. Bourland , Robert J. DiLullo , Kimberly E. Ritrievi , Jon R. Valbert
发明人： Larry G. Bourland , Robert J. DiLullo , Kimberly E. Ritrievi , Jon R. Valbert
IPC分类号： A61L15/60 , D04H1/00 , D04H1/72 , D04H3/02
CPC分类号： D04H3/02 , A61L15/60 , D01D5/04 , D01D5/14 , D04H1/72 , Y10T442/69
摘要： Superabsorbent articles in the form of soft, nonwoven fibrous webs are produced from aqueous fiber-forming polymer solutions by forming the polymer into water soluble filaments, contacting the filaments with a primary air stream having a velocity effective to attenuate and to partially dry the filaments, contacting the attenuated filaments with a secondary air stream having a velocity effective to fragment the filaments into fibers and to transport the fibers to a web-forming zone while also further attenuating and drying the fibers, collecting the fibers in reticulated web-form in the web-forming zone and curing the web to a water insoluble state. The temperature and air stream velocities are controlled with respect to ambient humidity and water content of the fiber during the fiber and web formation such that the fibers are collected without sticking. Collection is preferably on a wire belt followed by transport through a curing oven to compacting rolls and web take-up.

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