| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Device for extruding flowable compounds and method for producing such a device | US10484635 | 2004-07-29 | US20040265412A1 | 2004-12-30 | Filipp Peck |
| A rotary drop former wherein a flowable mass is extruded as droplets from an aperture of a perforated rotary drum which is aligned with a feed device disposed inside the drum. A radial outer end of each aperture is surrounded by a groove formed in an outer periphery of the drum. The groove intersects a radially outer end of its respective aperture to form therewith a tear-off edge which promotes release of the droplets from the drum. | ||||||
| 182 | Method and device for producing spherical particles from a polymer melt | US10356330 | 2003-01-31 | US20040113300A1 | 2004-06-17 | Theodor Jurgens; Rudolf Geier |
| The invention relates to a method and a device for the production of spherical particles, whereby a molten prepolymer or precondensate is transformed into droplets by means of a drip nozzle, the droplets are subjected to a countercurrent with a gas in a precipitation column until at least partial crystallization is achieved and are then subjected to an additional post-crystallization phase. In order to economically produce higher quality particles at a high flow rate, the molten prepolymer is transformed into droplets by means of a vibrating nozzle plate and/or direct vibration of the molten prepolymer or polymer and resulting droplets are subjected to an air and gas countercurrent. | ||||||
| 183 | Continuous combined pigmented wax compounding and bichromal sphere fabrication process | US10397017 | 2003-03-25 | US20030180494A1 | 2003-09-25 | Y. Martin Lu |
| A system and method for the continuous fabrication of bichromal spheres by introducing continuous streams of differently colored, pigmented polymer melts to substantially opposite sides of a plurality of spinning disks. The system comprises a first and second extruder which melts a raw polymer material and mixes the melted polymer with a pigment and optionally a charge control agent. The first and second extruders are connected to substantially opposite sides of a plurality of spinning disks with optionally interconnected gear pumps and mixing devices. The instant system and method is useful in fabricating large quantities of bichromal spheres in a continuous manner with a higher degree of uniformity in their physical characteristics. | ||||||
| 184 | Method and device for producing granulates from intermediate products of thermo-plastic polyesters and copolyesters | US10018462 | 2002-04-25 | US20020171159A1 | 2002-11-21 | Andre Matthaei; Peter Locker; Anreas Ecker; Ralf Muller |
| The invention relates to a process and an apparatus for forming molten drops of precursors of thermoplastic polyesters or copolyesters as molten monomer, oligomer, monomer/glycol mixture or after partial polycondensator nullsicnull and melting to give a molten precursor, in which the precursor formed into drops is introduced into a gaseous medium, and the gaseous medium, after entry of the precursor formed into drops into the gaseous medium, accelerates the crystallization process by holding the drop-form precursor at a temperature above 100null C. and below its melting point for a limited time until crystallization of the drop at the surface of the precursor is complete. To this end, the apparatus has a fall tower, through which the gaseous medium flows in countercurrent from bottom to top, while the drops fall in the vertical direction from top to bottom into a collecting funnel with a precrystallized surface. | ||||||
| 185 | Bichromal sphere fabrication | US10109222 | 2002-03-28 | US20020140133A1 | 2002-10-03 | Chad Byron Moore |
| The invention discloses different methods of creating bichromal spheres and cylinders by using both printing techniques and creating a sheet or fiber of the bichromal material and cutting the sheet or fiber into small sizes. To create spheres the small particles are heated to a point where their surface tension creates bichromal spheres. The bichromal fiber can be created by drawing the fiber from a bichromal preform or the bichromal fiber can be formed using a pulltrusion process, where a large bichromal fiber is extruded and is drawn down as it exits the extruded. Coating the bichromal fiber with a coating during the fiber draw process or before the fiber is cut into shorter lengths can create microencapsulated cylinders or spheres. | ||||||
| 186 | Process for preparing pellets of saponified ethylene/vinyl acetate copolymer | US09297688 | 1999-05-06 | US06238606B1 | 2001-05-29 | Makoto Kunieda; Koji Izumi; Kenji Ninomiya |
| In the method of continuously producing pellets by continuously extruding a saponified ethylene-vinyl acetate (EVOH) solution in a strand form into a coagulation liquid and then cutting the resulting strand, the ratio between the weight X of the coagulation liquid and the weight Y of the strand of the saponified ethylene-vinyl acetate copolymer, namely the ratio X/Y, is set at 50 to 10,000. The coagulation liquid preferably contains 1 to 10,000 ppm of a carboxylic acid, 1 to 50,000 ppm of a carboxylic acid ester, or 1 to 15,000 ppm of a carboxylic acid salt. It is preferred as well that the water content of the continuously produced EVOH pellets be adjusted to 20 to 80% by weight and then brought into contact with an aqueous solution, having at least one boron compound, an acetic acid salt and a phosphoric acid compound. | ||||||
| 187 | Apparatus for manufacturing granulated material | US446617 | 1995-07-17 | US5766642A | 1998-06-16 | Reinhard Froeschke |
| A mechanism for making granulated material from a viscous substance includes a vessel charged with the substance and having a discharge arrangement such as a slit through which the substance can flow onto a cooling surface. A belt disposed above the cooling surface is passed across the slit of the vessel. The belt has openings arranged to periodically come into alignment with the slit to allow the substance to flow therethrough. The belt is a thin metal belt strengthened by sleeves projecting from respective ones of the openings in a direction away from the vessel. | ||||||
| 188 | Process for forming crystalline polymer pellets | US694083 | 1996-08-08 | US5730913A | 1998-03-24 | Jan M. Stouffer; Elwood Neal Blanchard; Kenneth Wayne Leffew |
| This invention relates to a process and apparatus for forming a polyester polymer into particles. More particularly, this invention relates to a process and apparatus for forming crystalline, uniform pellets from an amorphous polyester melt. The polyester pellets have utility, for example, as feedstock for a process for producing higher molecular weight polyesters. | ||||||
| 189 | Spin encapsulation apparatus and method of use | US237290 | 1994-05-03 | US5643594A | 1997-07-01 | Randel E. Dorian; Kent C. Cochrum; Richard David Antanavich |
| A coating apparatus includes a rotary cup for forming beads and projecting them radially outwardly, and one or more collection basins surrounding the bead forming cup. The cup is adjustably rotatable about its central axis, and the collection basins are independently rotatable and positioned to collect the beads projected from the cup. The coating apparatus further includes an elevation adjustment system for axially adjusting the alignment of the cup with respect to the selected collection basins. The rotational speeds of the cup and the collection basins are selected so as to minimize the impact of the beads against a gelling solution in the collection basins. In use, a supply mixture is introduced into a mixing chamber of the cup. As the cup spins, the coated particles are propelled upwardly by the centrifugal force from the mixing chamber along the inner surface of the cup, and are projected radially outwardly, as beads, into the gelling solution in one of the selected basins. Since the cup and the basin are simultaneously rotated, the impact of the beads against the capture solution is significantly reduced. | ||||||
| 190 | Encapsulation of asphalt prills | US456708 | 1995-06-01 | US5637350A | 1997-06-10 | Eugene A. Ross |
| An encapsulated asphalt prill having an impervious, water-insoluble shell, and a process for making same are disclosed. The encapsulating material are preferably composed primarily of materials such as molten fatty acids, low melt polymers, waxes, elastomers (synthetic rubbers) or plastomers many of which are also used as blending agents to enhance the final use properties of the commercial asphalt end products. | ||||||
| 191 | Apparatus for manufacturing granulated material | US446780 | 1995-07-24 | US5591458A | 1997-01-07 | Reinhard Froeschke; Axel Konig |
| A mechanism for making granulated material from a viscous substance includes a vessel charged with the substance and having a discharge opening arrangement for discharging the substance onto a cooling surface. A belt travels across the vessel, the belt having openings arranged to periodically come into alignment with the discharge opening arrangement to allow the substance to fall onto the cooling surface. The discharge opening arrangement comprises a plurality of rows of discharge openings. Each row extends transversely of the longitudinal direction of belt travel, and the rows are spaced apart in that longitudinal direction. The vessel openings of each row are offset in the transverse direction with respect to the vessel openings of other rows. A collection arrangement collects residual substance falling from the belt and returns the substance onto the belt at a location upstream of the vessel. | ||||||
| 192 | Process for preparing polymer particles | US618652 | 1990-11-27 | US5342557A | 1994-08-30 | John Kennedy |
| A process is provided for preparing particles of polymer by heating the polymer having an inherent viscosity not exceeding about 0.6 dl/g when measured at a temperature of about 30.degree. C. in chloroform or hexafluoroisopropanol, dividing the heated polymer into particles, and then solidifying these particles such that substantially no fibers are formed among the particles. | ||||||
| 193 | Process for pelletizing ultra high melt flow crystalline polymers and products therefrom | US906328 | 1992-06-30 | US5340509A | 1994-08-23 | David S. Chang; Aaron S. Rhee; Ronald K. Crossland; Jorge O. Buhler-Vidal |
| Disclosed is a process for pelletizing ultra high melt flow crystalline polymers to produce dust-free, uniform ultra high melt flow crystalline pellet products. The process comprises feeding polymer into melting/mixing means, resulting in molten polymer. The molten polymer is transferred to a droplet forming means that produces droplets of the molten polymer. The droplets collect on a continuously moving cooling conveyer and solidify to form dust-free, uniform ultra high melt flow crystalline polymer pellets. Further, the process produces ultra high melt flow crystalline polymer pellets which are uniformly compounded. | ||||||
| 194 | Production of polymer particles in powder form using an atomization technique | US740507 | 1991-08-05 | US5269980A | 1993-12-14 | Yiannis A. Levendis; Thomai Panagiotou; Richard Flagan |
| A process for producing spherical polymer particles which may be either monodisperse of a predetermined and controlled size, or polydisperse, using a liquid atomization technique. The process includes an aerosol generator to create a stream or multiple streams of liquid droplets sprayed into a thermal reactor. The aerosol generator sprays the feed solution which comprises liquid organic monomers or semi-polymerized monomers, a polymerization catalyst and optionally, a solvent, into the thermal reactor environment. The solvent evaporates allowing polymerization reactions to commence. Polymerization may proceed by a variety of methods. Polymerization is completed during the flight-time of the droplets and the solid polymer particles are collected at the bottom of the reactor. The size of the particles in every batch may be predetermined and controlled by fine tuning the aerosol generator's configuration or operational parameters to adjust the size of the droplets of the feed solution being sprayed into the reactor. In one variation, the feed solution to the aerosol generator may be a polymer dissolved in an appropriate solvent. The aerosol generator then sprays the polymer solution in the thermal reactor to generate particles by evaporating the solvent. | ||||||
| 195 | Apparatus for depositing pieces of flowable material onto a transport belt | US882905 | 1992-05-14 | US5232128A | 1993-08-03 | Reinhard Froeschke |
| A rotary drum assembly contains a flowable material and includes peripheral openings through which the material can flow to form pieces of the material on a belt traveling beneath the drum assembly. A guide contacts the outer periphery of the drum assembly for pressing residual material back into the openings. The guide can be pivoted away from the drum assembly for servicing, and can be adjusted to different positions around the circumference of the drum assembly. | ||||||
| 196 | Pelletizing polymers | US836884 | 1986-03-06 | US4923649A | 1990-05-08 | Eric T. Hsieh; Gene H. C. Yeh; John R. Donaldson |
| A method of pelletizing polymer utilizing a liquid medium characterized in that the liquid medium boils at a temperature greater than the melting temperature of the polymer and is immiscible with the molten polymer so that (1) polymer can be heated in the liquid medium to a temperature that causes particulates to melt, (2) the melted polymer can be allowed to agglomerate and (3) the agglomerated polymer can be cooled in a liquid to form pellets. | ||||||
| 197 | Device for extruding flowable substances | US650701 | 1984-09-14 | US4623307A | 1986-11-18 | Reinhard Froeschke |
| A flowable substance is extruded from two coaxial telescoping cylindrical containers of which the outer is provided with openings on its periphery and is rotatable about the inner container. The substance is fed to the inner container and exits via a row of openings therein. As the outer container rotates, the inner and outer openings radially coincide cyclically whereby the substance falls in the form of drops onto a belt and solidifies. The row of openings of the inner container is provided in a nozzle bar which is removably attached to the periphery of a body part of the inner container. | ||||||
| 198 | Process and apparatus for preparing uniform size polymer beads | US398007 | 1982-07-14 | US4444961A | 1984-04-24 | Edward E. Timm |
| Spheroidal polymer beads having a uniform size are prepared by polymerizing uniformly sized monomer droplets formed by the vibratory excitation of a laminar jet of monomeric material flowing in a continuous liquid medium containing a suitable suspending agent. For example, a laminar jet of a monomer mixture comprising a monovinylidene aromatic such as styrene, a polyvinylidene aromatic such as divinylbenzene and a polymerization initiator can be subjected to vibratory excitation and the resulting monomer droplets polymerized to yield copolymer beads having a narrow particle size range distribution. The resulting copolymer beads can be employed to prepare high yields of ion exchange resins exhibiting superior properties, particularly in continuous ion exchange operations. | ||||||
| 199 | Process for making fiber-reinforced thermoplastic pellets | US771433 | 1977-02-24 | US4107250A | 1978-08-15 | James Zechinati; Elra W. Pegg |
| A method for preparing a fiber-reinforced, thermoplastic composite, wherein the fiber is randomly oriented and the fiber length and integrity is maintained, which leads to better mechanical properties and fiber dispersion in manufactured articles prepared from said composite. | ||||||
| 200 | Process for producing glass fiber reinforced injection molding compounds | US466279 | 1974-05-02 | US3932573A | 1976-01-13 | Michael E. Kucsma; Gary J. Babcock; Berlin C. Harris, Jr. |
| A process for preparing improved glass fiber reinforced thermoplastic compositions, the products produced thereby, and articles injection molded from the thermoplastic compositions. The process includes mixing and plastifying a powdered thermoplastic resin containing glass fibers in a screw extruder, milling the plastified resin-glass blend into a sheet on a hot roll mill, and dicing the sheet into pellets. The pellets are particularly suitable for use in forming articles by injection molding. | ||||||
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