子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Method for deodorizing polyolefin granulates | US09380404 | 1999-09-01 | US06218504B1 | 2001-04-17 | Volker Dolle; Eduardo Chicote Carrion; Paul-Richard Schöneborn; Herbert Terwyen |
| A gaseous mixture of steam and air, a gaseous mixture of steam and nitrogen, or pure steam are passed around polyolefin granules in a deodorizing apparatus. The result is that the polyolefin granules have markedly improved properties with respect to odor and taste, and these are retained in moldings produced from the granules. | ||||||
| 202 | Decontamination of RPET through particle size reduction | US746478 | 1996-11-12 | US5899392A | 1999-05-04 | Donald W. Hayward; Alison S. Martin; Francis M. Schloss |
| Contaminants are removed from RPET flakes by a process which includes the steps of comminuting the RPET flakes to produce RPET particles and driving the contaminants out from the RPET particles. | ||||||
| 203 | Method for continuously mixing and degassing liquid | US817672 | 1997-04-21 | US5860737A | 1999-01-19 | Erhard Hauser |
| A method for continuously mixing and degassing liquid, castable media, in particular components of casting resin or a casting-resin component with a filler such as quartz dust, aluminum oxide or dyes, and the equipment with which to implement the method. One object of the invention is to assure that casting-resin components are available in homogeneous and degassed form for further processing by either liquid components or a liquid component and a filler which are metered into a continuous degassing apparatus (1). | ||||||
| 204 | Fluidized-bed or effervescent bed chamber, treatment tower and process in two stages | US455457 | 1990-01-09 | US5199184A | 1993-04-06 | Roger Rosse |
| The apparatus consists of a vertically arranged tube which simultaneously forms the jacket (9) of the effervescent bed chamber (1) of the crystallizer and of the chamber (3) of the drier. The crystallizer and drier are connected to one another via an aeration surface (6) which is provided with pneumatic means (7) whose permeability decreases in the direction of flow of the granules. In a process for the continuous crystallization and drying of plastics granules, crystallization is carried out in an effervescent bed and drying is carried out in a fluidized bed moving relatively slowly, by means of a hot addition of gas under isothermal conditions. The drier according to the invention is a simple, economical solution for the drying of plastics granules. | ||||||
| 205 | Method and apparatus for charging high-viscous material | US659087 | 1991-02-22 | US5126084A | 1992-06-30 | Hiromitu Ibe; Kenji Matumoto; Toshikatsu Nakashima; Masato Oda |
| The present invention relates to a method and apparatus for charging a high-viscous material in a material tank into a charging tank. The high-viscous material, namely, putty is used preferably as a material for correcting the dynamic unbalance of a rotary body. When the material is charged from the material tank into the charging tank through a nozzle, the pressure of air in the charging tank is reduced and the pressure of air in the material tank is increased to drop the high-viscous material in droplets without taking air thereinto and air which has permeated into the material in the material tank can be removed. | ||||||
| 206 | Method and apparatus for continuously crystallizing polyester material | US456107 | 1989-12-22 | US5090134A | 1992-02-25 | Hans Russemeyer; Manfred Kerl; Hans-Joachim Schmidt; Beat Hani; Werner Kagi |
| Polyester granulates, in particular slowly crystallizing adhesive copolyesters are crystallized in two fluidized beds (1, 2) arranged in series and are guided into an impact apparatus (3) for the subsequent comminution of the small agglomerates. The first fluidized bed (1) is an effervescent fluidized layer with mixing characteristic and the second fluidized bed (2) is a flow bed with a plug flow characteristic. The second fluidized bed (2) ensures an adequate treatment duration in order to crystallize the amorphous grains of granulate which remain after the first fluidized bed (1). | ||||||
| 207 | Apparatus and method for eliminating static charge from polystyrene beads for pattern molding | US583531 | 1990-09-17 | US5034167A | 1991-07-23 | Robert C. Masters |
| A process for eliminating the static charge from expandable polystyrene beads during a molding cycle. Pre-expanded polystyrene beads are injected into a mold cavity by using an air stream created by a venturi-type fill gun. To prevent the beads from carrying static while being injected into the mold, the air is ionized by exposure to high energy nuclear particles prior to contact with the polystyrene beads. | ||||||
| 208 | Process for preparing toner particles | US630797 | 1984-07-13 | US4973439A | 1990-11-27 | Hui Chang; Jeffrey H. Sokol; Joseph L. Leonardo |
| Disclosed is an apparatus for obtaining toner particles with improved dispersion of additive components therein comprised of a toner extrusion device containing therein a blending chamber, a screw mixing means, a heating means, a toner supply means, and a means for injecting the additive components into the extrusion device enabling a decrease in the melting temperature of the toner resin particles contained therein. | ||||||
| 209 | Thermoplastic polymer composition comprising trans 1,4-polyisoprene | US139268 | 1987-12-29 | US4966952A | 1990-10-30 | John Riaza |
| A novel process for providing a thermoplastic polymer having novel thermal characteristics including the critical step of masticating the polymer, either continuously or discontinuously, until the melt index of the polymer is substantially increased. | ||||||
| 210 | Drying and crystallizing apparatus for granules, which employs a microwave device | US330783 | 1989-03-30 | US4954681A | 1990-09-04 | Kanzo Ishikawa; Ryutaro Hayashi; Akira Yoshimoto |
| A drying and crystallizing apparatus for granules, which is provided in a heating tank formed in the shape of a rectangular parallelepiped with a plurality of spaced-apart disc-like partitions forming therebetween a plurality of partitioned spaces across a material inlet and a material outlet, the partitions being rotatably suppported on a rotary shaft and provided with agitating vanes respectively, so that the granules are heated efficiently and uniformly by use of a microwave unit without heating variations, thereby enabling the granules to be dried or crystallized in a short time. | ||||||
| 211 | Process for producing a multilayer molded article | US238857 | 1988-08-31 | US4873041A | 1989-10-10 | Syohei Masui; Masahito Matsumoto; Nobuhiro Usui |
| A multilayer molded article having improved appearance and feeling is produced by wetting a skin material including a fabric or a thermoplastic resin sheet as an outermost layer with at least one liquid material which is water, an aqueous solution, a volatile material which is liquid in an ordinary state, or a solution including the volatile material as a medium, supplying the wet skin material between male and female molds, supplying a thermoplastic resin melt between the molds and closing the molds to form the multilayer molded article including the integrally adhered skin material and the thermoplastic resin. | ||||||
| 212 | Transportation method of synthetic rubber chips | US26937 | 1987-03-17 | US4789272A | 1988-12-06 | Tetsuyuki Matsubara; Norifumi Ito; Mune Iwamoto; Toshihiko Ando |
| Upon transportation of synthetic rubber chips through a piping or by means of a conveyor, 2 wt. %-50 wt. % based on the weight of the synthetic rubber chips of steam of 160.degree. C. or lower, water or both steam of 160.degree. C. or lower and water is added to the synthetic rubber chips upon their transportation. | ||||||
| 213 | Plastic pellet sorting apparatus with extruded side-stream monitoring | US138252 | 1987-12-24 | US4781559A | 1988-11-01 | Ronald D. Mathis; Gregory M. Swisher; Alejandro V. Santin |
| An automated system is provided for selectively separating resin pellets having a gel count below a specified maximum from pellets having a gel count above the specified maximum, while the pellets are flowing in a pneumatic conveyor. The separation is based on an essentially continuous measurement in which a laser beam is utilized to detect the number of gels in a film made from pellets withdrawn as a sample stream from the main pellet stream. In response to the gel count measurement, a control signal is established that is utilized to manipulate a diverter valve located in the pneumatic conveyor, which diverts pastic pellet flow between a preferred storage means storing pellets having a low gel count and a secondary storage means for storing pellets having a higher gel count. In operation, a hold up tank is provided between the point from which the sample stream is withdrawn and the diverter valve, so that the plastic pellet flow can be delayed in the hold up tank for the amount of time required for the withdrawn sample stream to be converted into the film, whereby the gel count measurement is representative of the pellets passing through the diverter valve. | ||||||
| 214 | Automatic method for sorting plastic pellets | US848181 | 1986-04-04 | US4756855A | 1988-07-12 | Ronald D. Mathis; Gregory M. Swisher; Alejandro V. Santin |
| An automated method is provided for selectively separating resin pellets having a gel count below a specified maximum from pellets having a gel count above the specified maximum, while the pellets are flowing in a pneumatic conveyor. The separation is based on an essentially continuous measurement in which a laser beam is utilized to detect the number of gels in a film made from pellets withdrawn as a sample stream from the main pellet stream. In response to the gel count measurement, a control signal is established that is utilized to manipulate a diverter valve located in the pneumatic conveyor, which diverts plastic pellet flow between a preferred storage means storing pellets having a low gel count and a secondary storage means for storing pellets having a higher gel count. In operation, a hold up tank is provided between the point from which the sample stream is withdrawn and the diverter valve, so that the plastic pellet flow can be delayed in the hold up tank for the amount of time required for the withdrawn sample stream to be converted into the film, whereby the gel count measurement is representative of the pellets passing through the diverter valve. | ||||||
| 215 | Dispersion of dry polymers into water | US798190 | 1985-11-14 | US4640622A | 1987-02-03 | Edwin T. Sortwell |
| A method and apparatus for rapidly dispersing particles of dry, water soluble polymer into water wherein air, water and said polymer particles are introduced to a chamber for thorough contact of the polymer with the water to form a mixture of aqueous polymer dispersion and entrained air. The mixture is immediately subjected to shear forces to separate any agglomerated particles into individual particles, and to prevent further agglomeration. | ||||||
| 216 | Heat treating of material in finely divided form | US503467 | 1983-07-20 | US4512732A | 1985-04-23 | Friedhelm R. Feder |
| Heat treatment of a material, e.g. a finely divided resin, wherein the material is introduced into a drum and agitated by rotating, spaced blades which whirl the material into a dispersion. The action of the blades heats the resin particles so that heat for the heat treatment is provided. The heat treatment can be, e.g. to cause small resin particles to coalesce with larger particles in the processing of polyethylene reactor flake, to improve flowability of the resin, or to admix resin and additive. To obtain increased capacity while the size of the apparatus is maintained within reasonable limits, two intersecting, generally cylindrical drums, each outfitted with an agitator, are used. Apparently the dispersions of the respective agitators slam into each other in the vicinity of the intersection causing additional heating. | ||||||
| 217 | Method of extruding and pelletizing expandable polymeric composition with recycling of transparent water supplied across the face of the extrusion die | US218229 | 1980-12-19 | US4385016A | 1983-05-24 | J. S. Gwinn |
| A method for providing pellets of extrusion compounded expandable polymeric compositions by (a) introducing a blowing agent and polymeric compound into an extruder, (b) extruding a composition containing the blowing agent and polymeric compound with discharge of the extrusion underwater through a pelleter at a temperature below blowing agent activation temperature, (c) supplying a stream of water across the die face of the pelleter at a predetermined first temperature sufficient to produce pellets, (d) supplying additional transport water downstream of the pelleter to further cool the pellets to a second predetermined temperature, and (e) separating the cooled pellets from the transport water. In an additional embodiment collecting the separated pellets, conditioning the transport water to the first predetermined temperature, and recycling the transport water to the die face.In a process for extruding and transporting pellets in which an extruder discharges underwater through a pelleting device a method for controlling the temperature of the pellets in which transport water is supplied to the die plate of the pelleter at the first predetermined temperature sufficient to produce pellets and additional transport water supplied downstream of the pelleter further to cool the pellets to a predetermined second temperature.In a method for transporting pelleted material a control system that comprises sensing and operating conditions, generating a signal according to the operating condition, and diverting flow of the pelleted material in response to that signal. | ||||||
| 218 | Cure of epoxy systems at reduced pressures | US303078 | 1981-09-17 | US4374081A | 1983-02-15 | Arnold A. Hiltz; Francis L. Moy |
| Epoxide compounds can be cured without resorting to the usual elevated temperatures by reducing the ambient pressure to 4.79 Pa or lower. This is particularly useful in potting circuitry. | ||||||
| 219 | Process for improving the processing properties of powdery polyolefins | US952662 | 1978-10-19 | US4248819A | 1981-02-03 | Manfred Mayer; Gerhard Noltner; Rudolf Nowack; Wolfgang Strobel |
| The invention relates to a process for improving the processing properties of powdery polyolefins. It is endeavored by this process to obtain a polyolefin powder which can be processed on screw extruders to an almost bubble-free product.The polyolefin powder is heated to a temperature of between 40.degree. C. and its melting point and introduced into a gap between two gap-forming elements. In this gap, the powder is compressed with a pressure of from 0.1 to 10 t per cm of gap length, and the powder so compressed is then comminuted. | ||||||
| 220 | Compaction of pulverized rubber mixtures | US786471 | 1977-04-11 | US4124559A | 1978-11-07 | Heinrich Koch; Josef Lehnen |
| Compacting of a rubber mixture by forcing a vulcanisable mixture of rubber and additives required for its manufacture through a diminishing cross-section. The mixture includes a vulcanising medium and is in the form of a pourable powder having a particle size of 0.1 to 6 mm with a powder density of 0.4 to 0.8 g/cm.sup.3. Compacting is at a temperature of 0.degree. to 60.degree. C, so that a granular, compact, yet not completely homogeneous, mixture of a density of 1.1 to 1.4 g/cm.sup.3 is produced. A device for compacting is also shown. | ||||||
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