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Class 264/211.23 - Plural screws, plural extruders, or plural stage extruder


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein the extruder employs more than one screw;
No. of patents: 331
Last issue date: 01/24/2012


1                  
NumberTitleIssue Date
8101108Cellulose acylate resin film and method for producing the same
The present invention provides a method for producing a cellulose acylate resin film, comprising the step of, melting a cellulose acylate resin in an extruder and extruding the molten cellulose acylate resin to a die, wherein the step of melting is carried out using...
01/24/2012
7981340Method of degassing a flowable mass in a ring extruder
The method of degassing is performed in a ring extruder wherein at least one process chamber is provided with at least one degassing opening. The radius R of the conveyor element in the degassing zone is smaller by ΔR than the full radius Rv of the conveyor element...
07/19/2011
7858008Profile-extruded poly(vinyl chloride) articles and method of making same
A profile-extruded article is disclosed, made of a fiber-reinforced polymer of vinyl-chloride monomer, wherein the article has a ratio of actual specific gravity to theoretical specific gravity of nearly unity. A method of making the article is also disclosed. ...
12/28/2010
7815833Method for producing injection-molded parts
In a method for producing injection-molded parts, PET material is processed and/or plasticized by means of a twin-screw extruder having a plurality of processing zones. At least two processing zones are implemented as degassing zones. The processed and/or plasticize...
10/19/2010
7736565Process for producing PPE resin composition
The invention provides process for producing a PPE resin composition containing PPE powder using an extruder comprising: a vent pipe; a polyphenylene ether (herein after referred to as “PPE”) powder supplying pipe; an extruder supply hopper having an opening wit...
06/15/2010
7713460Method and apparatus for manufacturing of plastic-based composite product
A method of preparing a plastic-based composite profile comprised of a plastic mass containing a plurality of wood particles embedded in the plastic mass by bringing a plurality of dried wood particles and a thermoplastic polymer together with optional additives tog...
05/11/2010
7641833Method for producing a pellet from a fiber-filled resin composition and injection-molded products thereof
An object of the present invention is to economically produce a resin composition pellet with the degradation of resin suppressed, by using an ordinary extruder, the resin composition pellet being filled with a desired filling amount of a uniformly compounded fibrou...
01/05/2010
7641832Process for the continuous production of a composition comprising rubber, hydrocarbon resin and solvent
The process for the continuous production of a composition comprising rubber (20), a hydrocarbon resin (22) and a solvent (26) provides for the use of at least two two-screw extruders (10a, 10b) placed in series. Thes...
01/05/2010
7442333Method for the production of polyamide nanocomposites, corresponding packaging materials and moulded bodies
The invention relates to a method for the production of polyamide nanocomposites made from base polymers comprising aromatic components and organically-modified phyllosilicates in a double-screw extruder with a front-feeder and a side-feeder. Said method is characte...
10/28/2008
7371797Storage-stable silicone compositions
Silicone compositions containing: (A) 100 parts by weight of organopolysiloxane(s) having an OH content, based on Si-bonded OH groups, of 1 to 100 weight ppm; and (B) 1-200 parts by weight of filler(s) having a spe...
05/13/2008
7341640Method of and apparatus for forming rubber strip materials for building tires and method of building tires
Method for forming a rubber strip which enables a wider rubber of small thickness without lowering an extruding speed and enables to reduce a building cycle time, thereby increasing the efficiency of tire manufacturing. Temperatures at a main-part casing 11, ...
03/11/2008
7284897Extruder for continuously working and/or processing flowable materials
An extruder has at least three parallel, co-rotating shafts disposed in a cavity therein along a circle. The shafts are equipped with screw elements closely intermeshing over their whole circumference. At least one screw element is formed as a passage screw element ...
10/23/2007
7279535Method for the continuous production of polymers made of vinyl compounds by substance and/or solvent polymerization
Production of vinyl polymers by the polymerization of vinyl monomers in a planetary gear extruder. ...
10/09/2007
7244115Extruder for producing bodies of consolidated particulate material
Shaped bodies of particulate material are produced by introducing an easily flowable slurry of water and particulate material into a mold with perforated walls and applying a sufficiently high pressure to the slurry in the mold so as to express a sufficient proporti...
07/17/2007
7172407Injection unit for injection molding machines with continuously operating plasticizing unit
An injection unit for an injection molding machine includes a plasticizing unit in the form of an extruder, a plunger-type injection device, which can be connected to the injection molding machine by an injection nozzle. The plunger-type injection device defines an ...
02/06/2007
7172403Apparatus for preparing a gypsum wallboard core
A gypsum wallboard core, and methods and apparatus for making the same are disclosed. Methods of making a gypsum wallboard core include extruding a gypsum slurry containing water, gypsum, slip agents, water-reducing agents, surfactants and, optional additives, throu...
02/06/2007
7172767Opioid agonist / antagonist combinations
The invention is directed in part to oral dosage forms comprising a combination of an orally analgesically effective amount of an opioid agonist and an orally active opioid antagonist, the opioid antagonist being included in a ratio to the opioid agonist to provide ...
02/06/2007
7163471Golf balls having sound-altered layers and methods for making them
Golf ball covers incorporate base material compositions including a sound-altering material for selectively enhancing or dampening the acoustic output of a golf ball when it is struck. A ratio in the composition by weight of base material to sound-altering material ...
01/16/2007
7160102Injection unit for injection molding machines with continuously operating plasticizing unit
An injection unit for injection molding machines includes an extruder as plasticizing unit and a plunger-type injection molding device that can be coupled to the injection molding machine by an injection nozzle. The plunger-type injection molding machine has an inje...
01/09/2007
7141638Vinyl alcohol polymer
A vinyl alcohol polymer is provided that is particularly useful for efficiently producing an inkjet recording material having an ink-receiving layer which is not cracked on its surface, which is highly glossy, which can absorb ink well and which is highly transparen...
11/28/2006
7129248Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone
In certain embodiments the invention is directed to a process for preparing an oxycodone hydrochloride composition having less than 25 ppm of 14-hydroxycodeinone. ...
10/31/2006
7080935Multi-screw extruder
The invention relates to a multi-shaft extruder for the continuous treatment and/or processing of bulk material, especially a powdery, granular or flocculent product, comprising a plurality of shafts (3) which are arranged in a crown-like manner in a cavity (...
07/25/2006
7049385Curable thixotropic organosiloxane compositions
The present invention relates to the use of C2–C24 aliphatic diols, preferably 1,2 propane diol as a thixotropic enhancing diluent in moisture curable organosiloxane compositions, especially in the presence of silicone-polyether block copolym...
05/23/2006
7040798Ring extruder feed
The invention relates to a multi-screw extruder for the continuous treatment and/or processing of a bulk material, especially a product in powder, granular or flake form, comprising several shafts (3) which are arranged in a ring shape in a cavity (1) ...
05/09/2006
7037996Composition containing polymer having ionic functional group, ink composition, and image-forming method and image-forming apparatus employing the ink composition
The present invention provides an ink composition containing a pigment dispersed uniformly in a solvent and a block polymer having an ionic functional group, an image-forming method and an image-forming apparatus employing the ink composition. The composition...
05/02/2006
7029262Method and apparatus for making pellets of wood meal compound
A method and apparatus for making pellets of wood meal compound according to the present invention is constructed in such a manner that synthetic resin material and wood meal material are supplied into a hopper (3) in a most upstream position, and kneaded in ...
04/18/2006
7026377High performance fiber reinforced thermoplastic resin, method and apparatus for making the same
A process for producing a fiber-reinforced molded article and the resulting article such as a cantilevered battery tray. In the process, thermoplastic material in its solid state having a melt flow index above 25 g/10 minutes is fed into a suitable processing machin...
04/11/2006
7025491Homogenizing and/or dispersing device comprising endless screws
An apparatus for homogenizing and/or dispersing at least one viscous substance and at least one solid and/or at least one other substance of different viscosity includes in a space in a housing axis-parallel rotatable shafts disposed along a circle with equal centra...
04/11/2006
7018574Process for removing volatile components in polyarylene sulfide
There is disclosed a process for removing volatile components in a polyarylene sulfide resin which is produced by subjecting a sulfur source and a dihalogenated aromatic compound to polymerization reaction in an aprotic organic solvent, comprising using an extruder ...
03/28/2006
6972144Composite structural material and method of making same
A composite structural material suitable, for example, as a replacement for wooden boards, is disclosed. It comprises a dimensionally stable core material ensheathed in a dimensionally stable, laminar covering that is adherent to the core material. The laminar cover...
12/06/2005
6953541Flexible polyolefin compounds for vehicle applications
The present invention provides a method for preparing flexible thermoplastic compositions that may be used separately or combined with up to fifty percent thermoplastic scrap. One embodiment of the invention comprises creating a melt-blend of blending composition, u...
10/11/2005
6939383Method for making electrode
Described are methods of making electrodes for electrochemical systems, especially cathodes for lithium polymer batteries, and products prepared from the methods; the methods involve the use of a co-rotating, fully intermeshing twin screw extruder, the extrusion of ...
09/06/2005
6936203Closed die array for multi-layered articles
An array of dies having a closed configuration is used in a method and apparatus for making a closed composite article that comprises multilayered materials. In the method and apparatus, at least two extruders are used to extrude at least two material streams throug...
08/30/2005
6893594Extruded window and door composite frames
Novel window and patio door frame members are formed by an extrusion process that provide these members with at least one channel and with an outer weather resistant surface and an internal imitation wood surface together with integrated sealing strips formed in the...
05/17/2005
6884378Methods for manufacturing super micro fibers
This invention relates to methods for manufacturing super-micro fibers to produce fibers having dimensions of between 0.003-0.0003 denier per filament. The manufacturing methods include the following steps: blending polyamide-polyester mixtures; passing said polyami...
04/26/2005
6838025Method and an apparatus for adjusting an extrusion die in an extruder
The invention relates to a method for adjusting an extrusion die in an extruder by recording at least one master flow curve (40, 41) in a first extruder to which the extrusion die is optimized, in which curve the volume flow is entered over the pressure, whic...
01/04/2005
6833096Method for removing water and other volatile components from polymer powders
A method for removing volatile components from wet, polymer powders using a vacuum vented extruder is described. Polymer powders containing substantial amounts of water, 1-20% by weight, are rapidly converted to polymer compositions containing less than about 0.5% b...
12/21/2004
6805823Resilient biodegradable packaging materials
Biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by compression, stretching or compression and stretching provide excellent flexibility, pliability, dimensional s...
10/19/2004
6803004High throughput process for reactive extrusion of epoxy resin
The present invention provides low cost resins (e.g., advanced epoxy resins), processes for making these resins, and coatings made with theses resins. Specifically, the present invention provides high throughput extrusion processing of advanced epoxy resins using an...
10/12/2004
6800233Extrusion method for ceramic honeycomb articles
An improvement in a process of making honeycomb articles, which process utilizes a co-rotating, intermeshing twin screw extrusion apparatus to mix, screen, and extrude a batch of ceramic materials through a die, the improvement which comprises the steps of separatin...
10/05/2004
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