PROCEDURE FOR THE PRODUCTION OF AN ENDLESS STRAND PROFILE FROM DUROPLASTI PLASTIC

PROCEDURE AND DEVICE FOR THE PRODUCTION OF CELEBRATIONS PARTICLES

CENTRIFUGALLY POWERED PELLETIZING MACHINE AND METHOD

PUMP FOR VISCOSE RAYON OF MATERIALS.

Method and apparatus for producing an extrudate.

Bei einem Verfahren und einer entsprechenden Vorrichtung zur Herstellung eines Extrudats werden Ausgangsprodukte in einen Extrudierbehälter (1) eingebracht, erwärmt und durch duale asymmetrische Zentrifugierung des Extrudierbehälters (1) homogen miteinander vermischt. Dabei wird der Extrudierbehälter (1) um eine ausserhalb des Extrudierbehälters verlaufende erste Rotationsachse (A 1 ) und gleichzeitig um eine durch den Extrudierbehälter verlaufende und zur ersten Rotationsachse (A 1 ) in einem spitzen Winkel () stehende zweite Rotationsachse (A 2 ) rotiert. Die miteinander vermischten Ausgangsprodukte werden schliesslich gemeinsam aus dem Extrudierbehälter (1) extrudiert. Das Verfahren und die entsprechende Vorrichtung sind insbesondere für die Verarbeitung von kleineren und kleinsten Substanzmengen geeignet.

Polyester composition, electronic device, and method of forming film

Method and device for stabilizing melt extrusion of blade extruder

Rotating disk extruder

A MACHINE [...]-MOLDING HAS SEVERAL MOLDS MOUNTED DRUMS FOR CORE SYSTEMS AND SIMILAR MATERIAL

PREPARATION D'UNE MATIERE PLASTIQUE EN VUE DE SON EXTRUSION NOTAMMENT SOUS LA FORME D'UN CORDON CALIBRE DESTINE A SERVIR DE JOINT ET D'INTERCALAIRE DANS DES VITRAGES MULTIPLES

L'INVENTION SE RAPPORTE A LA DISTRIBUTION D'UNE MATIERE PLASTIQUE DU TYPE CAOUTCHOUC BUTYL, ET PLUS SPECIALEMENT A SA PREPARATION ET A SON ACHEMINEMENT DEPUIS UN RESERVOIR OU ELLE EST DURE, VISQUEUSE ET A TEMPERATURE RELATIVEMENT BASSE, JUSQU'A UNE BUSE D'EXTRUSION OU ELLE DOIT POSSEDER UNE VISCOSITE ET UNE DURETE BIEN INFERIEURES A CELLES QU'ELLE AVAIT INITIALEMENT. L'INVENTION PROPOSE UNE PREPARATION EN PLUSIEURS ETAPES COMBINANT CHAUFFAGE ET MISE SOUS PRESSION DE FACON A ALIMENTER AU DEBIT VOULU ET AVEC LA QUALITE DE MATIERE PLASTIQUE DESIREE, UNE BUSE EVENTUELLEMENT MOBILE. L'INVENTION S'APPLIQUE A LA FABRICATION D'UN CORDON SERVANT DE JOINT ET D'INTERCALAIRE DANS DES VITRAGES MULTIPLES.

POMPE POUR LA DISTRIBUTION DE MATIERES A VISCOSITE ELEVEE ET SON APPLICATION DANS UNE INSTALLATION DE FOURNITURE D'UN CORDON DE MATIERE PLASTIQUE DESTINE A SERVIR D'INTERCALAIRE DANS DES VITRAGES MULTIPLES

L'INVENTION CONCERNE LA DISTRIBUTION DE MATIERES A VISCOSITE ET A DURETE ELEVEES, COMME LES MATIERES PLASTIQUES DU TYPE A BASE DE CAOUTCHOUC BUTYL. ELLE PROPOSE UNE POMPE A ENGRENAGES INTERNES ROTATIFS DANS LAQUELLE LES ALIMENTATIONS EN MATIERE SE FONT SUR LES DEUX FACES DESDITS ENGRENAGES. ELLE PERMET LA FOURNITURE A DEBIT ELEVE DE MATIERES PLASTIQUES A VISCOSITE ET DURETE ELEVEES, NOTAMMENT POUR LA FABRICATION A CADENCE ELEVEE DE VITRAGES MULTIPLES A JOINTS EN MATIERES PLASTIQUES.

PROCEDE POUR LA FABRICATION DE PRODUITS DE CAOUTCHOUC REGENERE, PRODUITS FABRIQUES DE CAOUTCHOUC REGENERE ET DISPOSITIF POUR LA MISE EN OEUVRE DUDIT PROCEDE

Selon l'invention, on mélange du caoutchouc sous forme de particules obtenues par moulage de pneumatiques usés avec une plus faible quantité d'un polymère thermoplastique ou élastomère tel que polyéthylène ou polypropylène, un agent fondant et/ou lubrifiant, de l'huile de vidange par exemple, et un agent vulcanisant et on introduit ce mélange dans une extrudeuse 30 qui alimente des moules refroidis 11 pour la production de poteaux par exemple ou qui débite le mélange plastifié à travers une filière sous forme d'un tuyau par exemple. L'invention est applicable notamment à la fabrication, principalement à partir de pneumatiques usés de voitures, de poteaux, tuyaux poreux, récipients tels que pot à fleurs et palettes de manutention.

Extrusion machine including main extrusion system and drive mechanism connected with main extrusion system which has top delivery inlet and lower chamber and drive mechanism arranged inside having multi-pinions

Une machine à extruder comporte une unité principale d'extrusion (2) et un mécanisme de commande relié à l'unité principale d'extrusion (2). Le mécanisme de commande comporte un moteur , une boite de transmission et un arbre de commande (33) relié au moteur , l'arbre de commande (33) traversant la boite de transmission , l'unité principale d'extrusion (2) comportant en partie supérieure une ouverture d'alimentation (21), une chambre inférieure (28), et un engrenage (4) logé à l'intérieur de ladite chambre. L'engrenage (4) comporte un premier pignon (42), un deuxième pignon (43) engageant le premier pignon (42), un troisième pignon (44) engageant le deuxième pignon (43), une roue dentée principale (41) engageant le premier pignon (42), un quatrième pignon (45) engageant la roue dentée principale (41), un cinquième pignon (46) engageant le quatrième pignon (45), un sixième pignon (47) engageant le cinquième pignon (46) et un septième pignon (48) engageant le sixième pignon (47). La roue dentée ...

INDIRECT EXTRUSION PRESSES AND METHODS OF OPERATION THEREOF

RUBBER STRIP MANUFACTURING DEVICE AND MANUFACTURING METHOD

Provided are a rubber strip manufacturing device and manufacturing method with which a tape-shaped rubber strip obtained from unvulcanized rubber can be stably manufactured. The device (1) for manufacturing a tape-shaped rubber strip (G2) obtained from unvulcanized rubber is characterized in comprising: a rubber-extruding unit (3) provided with a main rubber extruder body (6) having a screw shaft (6c) for pressing while mixing the unvulcanized rubber toward a discharge opening (6d) and a gear pump (7) that is connected to the discharge opening (6d) of the main rubber extruder body (6) and is rotated by a first motor (M1); a calender head (4) comprising a pair of calender rolls (4a, 4b) for rolling the rubber molding extruded from the rubber-extruding unit (3) to obtain the rubber strip (G2); and a control unit (70) for controlling a second motor (M2) for rotating the calendar rolls (4a, 4b) in cooperation with the first motor (M1).

ROTATING DISK EXTRUDER

POLY (LACTIC ACID) COMPOSITION WITH IMPROVED IMPACT STRENGTH

Vorplastifiziervorrichtung

PROCEDURE AND DEVICE FOR THE PRODUCTION OF CELEBRATIONS PARTICLES

METHOD AND APPARATUS FOR PROCESSING VARIOUS MATERIALS

The invention relates to a method and a an apparatus for processing various materials, the apparatus including at least two annular feed gaps placed one within the other. The beginning of each feed gap is provided with a grinding section (5), which is followed in the apparatus by a mixing section (10). The materials are processed in the grinding section (5), whereafter they are mixed in the mixing section (10), and the mixture is extruded into a product.

PROCESS AND APPARATUS FOR BORDERING A CORRUGATED PLASTIC PANEL AND PANEL THUS OBTAINED

APPARATUS FOR THE EXTRUSION OF THERMOPLASTICALLY MOULDABLE PLASTICS FILMS

DISTRIBUTION Of an ELASTOMER HAS STRONG VISCOSITY

DEVICE FOR THE FORMATION OF DROPS AND PASTILLES

Device for the manufacture of plastic articles

Dispenser for a high-viscosity elastomer

VALVE EXTRUDER

Processing of a plastic with a view to its extrusion, especially in the form of a calibrated bead intended to act as seal and insert in multi-glazed articles

EXTRUSION OF PLASTICS MATERIALS

VOLUMETRIC PUMP AND PROCESS FOR VOLUMETRIC PUMPING

METHOD FOR THE REACTIVE EXTRUSION OF COMPOSITIONS CONTAINING AT LEAST ONE AMYLACEOUS MATERIAL IN A MIXTURE WITH ANOTHER COMPONENT, RESULTING PRODUCTS AND USES THEREOF

The present invention relates to a method for the reactive extrusion of compositions containing at least one amylaceous material and another component selected from a comprehensive list, said extrusion taking place in the presence of at least one cross-linking agent and at least one solvent and/or plasticizer. Advantageously, the method according to the invention makes it possible to control the competition between the destructuring and the cross-linking of the starch. Said method therefore makes it possible to obtain compositions made of cross-linked starches with residual crystalline phase levels that can be adjusted in order to ideally meet the specific needs of the different end applications.

Pumps for viscous substances

A pump for viscous substances is constructed in such a way that it is constructionally simple and insensitive to foreign bodies. For this purpose, a plurality of shafts which are rotated in the same direction are arranged in a casing. Disks are fitted to the shafts and these disks are substantially clearance-free with respect to the corresponding wall portion of a recess and an adjacent shaft. At least one such disk and at least one adjacent shaft and the associated wall portion of a recess define a chamber. A plurality of such chambers are arranged in series and are interconnected by in each case an overflow duct.

PUMP SYSTEM

Экструзионная установка

ЭКСТРУЗИОННАЯ УСТАНОВКА , содержащая станину, размещенный на ней корпус со щнековым узлом, привод вращения шнекового узла и формующее устройство, выполненное в виде накопительной камеры с выпускным отверстием, установленной на выходном конце корпуса концентрично ему, отличающаяся тем, что, с целью снижения энергозатрат при изготовлении длинномерных крупногабаритных изделий из реактопластов, формующее устройство снабжено приводом для перемещения его относительно продольной оси корпуса.

EXTRUSION WITH ROTARY DISKS

PROCEDURE FOR THE PRODUCTION OF ENDLESS STRAND PROFILE FROM DUROPLASTI PLASTIC

CENTRIFUGAL PELLETIZING SYSTEMS

METHOD AND MACHINE FOR FORMING ARTICLES FROM A PLASTIC MATERIAL

POSITIVE-DISPLACEMENT PUMP FOR PASTY MATTER

DISTRIBUTION D'UN ELASTOMERE A FORTE VISCOSITE

LA PRESENTE INVENTION CONCERNE LA DISTRIBUTION D'UN ELASTOMERE A FORTE VISCOSITE. DANS UNE INSTALLATION COMPORTANT UNE RESERVE DE MATIERE A FORTE VISCOSITE, UN PISTON CHAUFFANT EQUIPE D'APPENDICES EGALEMENT CHAUFFANTS, DE FORME CONIQUE OU PYRAMIDALE ET EN GENERAL DE FORME TELLE QUE SA SECTION EST D'AUTANT PLUS REDUITE QU'ELLE EST PLUS PROCHE DE LA SORTIE MENAGEE DANS LEDIT PISTON, ELLE PROPOSE DE DISPOSER UN REVETEMENT NON ADHERENT SUR LA PAROI DE LA RESERVE OPPOSEE AUDIT PISTON. L'INVENTION PERMET L'UTILISATION COMPLETE DE LA MATIERE A FORTE VISCOSITE CONTENUE DANS LA RESERVE, MALGRE LA FORME DU PISTON.

REACTIVE EXTRUSION PROCESS COMPOSITIONS CONTAINING AT LEAST ONE STARCH MATERIAL MIXED WITH ANOTHER COMPONENT, THE RESULTING PRODUCTS AND USES THEREOF

La présente invention se rapporte à un procédé d'extrusion réactive d'une composition contenant au moins une matière amylacée et un autre composant choisi dans une liste exhaustive, ladite extrusion ayant lieu en présence d'au moins un agent réticulant et d'au moins un solvant et/ou plastifiant. De manière avantageuse, le procédé selon l'invention permet de contrôler la compétition entre la déstructuration et la réticulation de l'amidon. Ce procédé permet donc d'obtenir des compositions à base d'amidons réticulés avec des taux de phases cristallines résiduelles adaptables afin de répondre idéalement aux besoins spécifiques des différentes applications finales.

SYSTEME INTEGRE POUR LA FORMATION DE FEUILLES DE RESINE SYNTHETIQUE

L'invention concerne un système d'extrusion intégré d'un polymère thermoplastique. Ce système comprend des moyens permettant de retirer directement le polymère fondu d'un réacteur de polymérisation, des moyens de transfert faisant suite aux moyens de retrait et menant à une extrudeuse munie d'une filière. Ce système permet de fabriquer des feuilles minces tubulaires sans produit intermédiaire.

NON-CROSSLINKED FOAMING EXTRUSION SHEET OF POLYPROPYLENE AND PRODUCTION APPARATUS AND METHOD THEREOF

The present invention relates to a non-crosslinked foaming extrusion sheet of polypropylene and a production apparatus and a method thereof. The production method of a non-crosslinked foam extrusion sheet of polypropylene according to an embodiment of the present invention comprises the steps of: blending a polypropylene composition; melting and sending the blended polypropylene; injecting foam gas into the polypropylene to be sent; mixing the foam gas injected into the polypropylene; producing a closed cell in the polypropylene; and extruding the non-crosslinked foam sheet. COPYRIGHT KIPO 2017 ...

BIAXIALLY ORIENTED FILM FOR ELECTRICAL INSULATION PURPOSES, AND FILM CAPACITOR PRODUCED USING BIAXIALLY ORIENTED FILM FOR ELECTRICAL INSULATION PURPOSES

VISCOSITY PUMP FOR EXTRUSION-BASED DEPOSITION SYSTEMS

A pump system (10) comprising a delivery assembly (22) configured to feed a solid material under operational power of a first drive motor (16), and a screw pump (24) comprising a housing (84) that at least partially defines a barrel (106) of the screw pump (10), an extrusion tip (82) secured to the housing (84) at a first end of the barrel (106), a liquefier (85, 342) secured to the housing (84) and intersecting with the barrel (106), and an impeller (94) extending at least partially through the barrel (106). The liquefier (85, 342) is configured to receive the solid material fed from the delivery assembly (22), to at least partially melt the received solid material, and to direct the at least partially melted material to the barrel (106), and the impeller (94) is configured to drive the at least partially melted material that is directed to the barrel (106) toward the extrusion tip (82) under operational power of a second drive motor (18).

METHOD FOR MOLDING GREEN TIRE

PROBLEM TO BE SOLVED: To provide a method for molding a green tire which supplies a sufficient amount of a rubber material to a gear pump irrespective of the delivery capacity of the gear pump and does not cause the problem of product quality. SOLUTION: When ribbon-shaped unvulcanized rubber strips are wound overlie a molding drum to mold the green tire, texture rubber 5 supplied through the refining process is charged in a warming cold tuba 1, and warmed rubber material is extruded from a nozzle 8 while foreign matters in the rubber are removed. The extruded rubber material 9 is supplied to the gear pump 3 through a temperature-adjusted conveyer 2, and the ribbonlike rubber strips 13 which are discharged from the gear pump 3 and molded are wound onto the molding drum 4 to overlie it. COPYRIGHT: (C)2009,JPO&INPIT ...

VOLUMETRIC PUMP AND PROCEDURE FOR VOLUMETRIC PUMPING.

Device for making hose sections of thermoplastic plastic

Plasticizing device

Procedure and device for the production from shaped parts crosswise interlinked, thermoplastic plastic

Extrusion press to the production of hoses or pipes from thermoplastic material

PROCEDURE FOR THE HOMOGENIZATION AND EVEN DISTRIBUTION OF VISCOUS LIQUIDS AND DEVICE FOR THIS

PREPARATION D'UNE MATIERE PLASTIQUE EN VUE DE SON EXTRUSION NOTAMMENT SOUS LA FORME D'UN CORDON CALIBRE DESTINE A SERVIR DE JOINT ET D'INTERCALAIRE DANS DES VITRAGES MULTIPLES

L'invention se rapporte à la distribution d'une matière plastique du type caoutchouc butyl, et plus spécialement à sa préparation et à son acheminement depuis un réservoir où elle est dure, visqueuse et à température relativement basse, jusqu'à une buse d'extrusion où elle doit posséder une viscosité et une dureté bien inférieures à celles qu'elle avait initialement. L'invention propose une préparation en plusieurs étapes combinant chauffage et mise sous pression de façon à alimenter au débit voulu et avec la qualité de matière plastique désirée, une buse éventuellement mobile. L'invention s'applique à la fabrication d'un cordon servant de joint et d'intercalaire dans des vitrages multiples.

EXTRUDER SCREW AND POSITIVE DISPLACEMENT WAVE PUMP ASSEMBLY

Rubber strip manufacturing apparatus and manufacturing method

PROCEDE POUR TRANSFORMER UNE MATIERE SYNTHETIQUE THERMOPLASTIQUE EN UN ARTICLE AYANT LES PROPRIETES DU BOIS ET ARTICLE PRODUIT PAR CE PROCEDE

L'invention concerne la transformation d'une matière de résine synthétique thermoplastique en un article ayant les propriétés de travail et de mise en oeuvre du bois. Cette matière est soumise à une opération de mélangeage dans un fourreau d'extrudeuse à vis, est rendue fluide, est moulée, est refroidie dans le moule et est extraite du moule Le procédé se caractérise par l'introduction de la matière dans une extrudeuse à vis 3 sans grille-écran et sans filière d'extrusion, dans laquelle la matière est maintenue jusqu'à l'obtention d'une matière fluide sous l'action de l'élévation de la température et qu'elle quitte en contenant un gaz pour alimenter un moule 8 ouvert à ses deux extrémités, dont l'une est raccordée à la sortie de l'extrudeuse. L'invention est applicable au traitement de déchets de matière synthétique thermoplastique.

PERFECTIONNEMENT A LA DISTRIBUTION DE MATIERES PLASTIQUES NOTAMMENT POUR LA FABRICATION DE JOINTS DE VITRAGES MULTIPLES

L'INVENTION SE RAPPORTE A LA DISTRIBUTION D'UN ELASTOMERE A VISCOSITE BASSE A UN DEBIT DETERMINE CONSTANT EN DEHORS D'ARRETS INTERMITTENTS. ELLE PROPOSE POUR CELA D'EMMAGASINER L'ELASTOMERE AYANT LES CARACTERISTIQUES DE VISCOSITE SOUHAITEE DANS UN MAGASIN DE VOLUME VARIABLE, DE FACON CONTINUE MALGRE LES ARRETS DE DISTRIBUTION, A UN DEBIT MOYEN EVENTUELLEMENT INFERIEUR AU DEBIT DE DISTRIBUTION LORSQUE CELLE-CI EST OUVERTE. ELLE S'APPLIQUE A LA FOURNITURE D'UN CORDON D'ELASTOMERE DESTINE A CONSTITUER L'INTERCALAIRE DE VITRAGES MULTIPLES.

EXTRUSION MACHINE COMPRISING a UNIT Of EXTRUSION PRINCIPAL SEVERAL ROUESDENTEES

Roll compound of plasticization, extrusion and injection with back in circulation of the matter to be moulded

Extruding plastics through shear gap

METHOD FOR THE EXTRUSION OF ULTRA HIGH MOLECULAR WEIGHT POLYMERIC RESINS

Centrifugal pelletizers

Uniform pellets of thermoplastic material are formed by centrifugally expressing strands of heated material from orifices on the rim of a hollow rotor and severing the strands with a linearly moving endless blade at a selected radial distance from the rim. The severed pellets pass in a tangential path through a cooling spray at the entrance to a pellet outlet duct. The severing blade is mounted on a bracket for movement to and from the severing position and for adjustment radially and circumferentially of the rotor axis. Two blade assemblies are employed alternately so that blade replacement may be accomplished without interrupting operation. Downstream from the outlet duct an auxiliary knife-gate is employed adjacent a scrap duct and is movable from a severing position to a scrap duct closing position.

CENTRIFUGAL PELLETIZERS AND METHODS OF CENTRIFUGALLY PELLETIZING

MOLDING MACHINE FOR MAKING UHMW POLYETHYLENE OR HOLLOW TUBING

Pump for the distribution of high viscosity materials and its application in an installation for supplying a strand of plastic material intended to serve as interlayer in multiple glazing

Improvements brought to the processes and devices to manufacture piècesmoulées out of thermoplastic artificial matters

Improvements in or relating to the extrusion of plastics materials

Process and apparatus for the manufacture of objects out of plastic

Manufactoring process of pressed objects, in particular of objects out of artificial resin and masses of all kinds containing of the artificial resin

PROCEEDED FOR THE MANUFACTURE OF RUBBER PRODUCTS REGENERATES, PRODUCED FACTORIES OF RUBBER REGENERATES AND DEVICE FOR THE IMPLEMENTATION OF THE AFORESAID PROCEEDED

Polylactic composition, useful e.g. to make molded-, extruded- and thermoformed articles, comprises polylactic acid, ethylene copolymer e.g. ethylene-methylacrylate-glycidyl methacrylate and ethylene-alkyl(meth)acrylate copolymer

La présente invention concerne une composition d'acide polylactique présentant une résistance aux chocs améliorée comprenant en poids : - 60 à 97 % d'acide polylactique (PLA) et, - 3 à 40 % d'un mélange de composés A et B dans lequel, ○ A est un copolymère d'éthylène et d'un monomère insaturé porteur d'au moins une fonction époxyde ou acide carboxylique ou anhydride d'acide carboxylique, et éventuellement de (méth)acrylate d'alkyle. ○ B est un copolymère d'éthylène et de (méth)acrylate d'alkyle, ledit mélange présentant un rapport % poids (A) / % poids (A +B) compris entre 0,10 et 0,49. La présente invention concerne également la fabrication de pièces ou objets à partir de ces compositions.

VALVE EXTRUDER

Extruder for compounding composite materials with a view to moulding them

METHOD AND APPARATUS FOR PROCESSING VARIOUS MATERIALS

The invention relates to a method and a an apparatus for processing various materials, the apparatus including at least two annular feed gaps placed one within the other. The beginning of each feed gap is provided with a grinding section (5), which is followed in the apparatus by a mixing section (10). The materials are processed in the grinding section (5), whereafter they are mixed in the mixing section (10), and the mixture is extruded into a product.

MACHINE FOR PROCESSING AN ELASTOMERIC PRODUCT

METHOD AND APPARATUS FOR PRODUCING THERMOPLASTIC AND PRODUCTS PRODUCED THEREFROM

A method and apparatus are disclosed for producing various types of materials and products of a thermoplastic nature. In the method, a source of thermoplastic material is subjected to a high intensity mixing and melting step to form a material which is non-flowable but is a self-sustaining mass, the mass having a temperature low enough to prevent it from being readily flowable while in a subsequent step, the method involves heating the material so obtained between a fixed rigid surface and a moving rigid surface to force air from the mass and to cause the mass to densify, compress and convert it to a flowable form whereafter it is passed through a restricted opening. In the apparatus, there is provided a combination of a high intensity mixer and melting apparatus in which the product produced by the apparatus is fed directly into a gear-pump type of apparatus where the material is passed between a fixed rigid surface and a moving surface. Higher output speeds can be obtained using the method ...

EXTRUSION MOLDING MACHINE

An extrusion molding machine has a main extrusion molding device, and a drive mechanism connected to the main extrusion molding device. The drive mechanism has a motor device, a transmission case, and a drive shaft connected to the motor device. The drive shaft passes through the transmission case. The main extrusion molding device has an upper feed inlet, a lower chamber, and a gear mechanism therein. The gear mechanism has a first pinion, a second pinion engaging with the first pinion, a third pinion engaging with the second pinion, a main gear engaging with the first pinion, a fourth pinion engaging with the main gear, a fifth pinion engaging With the fourth pinion, a sixth pinion engaging with the fifth pinion, and a seventh pinion engaging with the sixth pinion. The main gear encloses the drive shaft.

PROCESS AND APPARATUS FOR BORDERING A CORRUGATED PLASTIC PANEL AND PANEL THUS OBTAINED

The present invention is related to a process for bordering a corrugated plastic panel (100,110) and to a panel obtained through that process. In particular, the invention is related to a process for making a corrugated plastic panel comprising a bordering made in¬ line or out-line in order to close the openings outwards. The invention is also related to an apparatus (1) for bordering according to that process. The panel is sealed and shock resistant thanks to the laying of thermoplastic elastomeric material.

EXTRUDER SCREW AND POSITIVE DISPLACEMENT PUMP ASSEMBLY

Apparatus to mould hollow objects out of plastic

IMPROVEMENT WITH THE DISTRIBUTION OF PLASTICS IN PARTICULAR FOR THE MANUFACTURE OF MULTIPLE JOINTS OF GLAZINGS

MACHINE D'EXTRUSION-MOULAGE A PLUSIEURS MOULES MONTES EN BARILLETS POUR PIECES EN MATIERE PLASTIQUE ET MATIERE SIMILAIRE

ELLE SE COMPOSE D'UNE MACHINE D'EXTRUSION 1 DONT LA MATIERE EXTRUDEE EST FOURNIE EN CONTINU, SOIT A UNE SORTIE 16 A SOIT A UNE AUTRE SORTIE 16 B D'UN ORGANE DE DISTRIBUTION 14 QUI EST SUIVI D'UNE MACHINE DE MOULAGE 4 AYANT DEUX BARILLETS CONCENTRIQUES 9, 10 DE MOULES 11 QUI SONT MIS SEQUENTIELLEMENT EN REGARD DE L'UNE ET DE L'AUTRE DE CES DEUX SORTIES A UN POSTE D'INJECTION, CEPENDANT QUE D'AUTRES MOULES SONT MIS A UN POSTE D'EJECTION DES OBJETS MOULES, DE SORTE QUE CETTE MACHINE A UN ENCOMBREMENT REDUIT ET UNE CAPACITE DE PRODUCTION ELEVEE.

Pompe volumétrique pour matière pâteuse

La pompe pour caoutchouc non vulcanisé comporte une hélice 21 gavant un cylindre 11 au travers de lumières 12, et un piston de refoulement 10 repoussant le caoutchouc au travers d'un clapet anti retour 16. Une telle pompe est volumétrique.

Adjusting device for presses

Improvement to the dispensing of plastic materials, especially for the manufacture of multiple-glazing sealing strips

Manufactoring process of pressed objects, in particular of objects out of artificial resin and masses of all kinds containing of the artificial resin

Preparation of a plastic for its extrusion particularly in the form of a gaged bead intended to be used as a seal and interlayer in multiple glazings

The invention relates to the distribution of a plastic of the butyl rubber type, and more particularly to its preparation and its routing from a tank where it is hard, viscous and at a relatively low temperature, to an extrusion nozzle where it must have a viscosity and a hardness much lower than those that it had initially. The invention proposes a preparation in several stages combining heating and pressurizing so as to feed, at the desired delivery and with the desired quality of plastic, an optionally mobile nozzle. The invention applies to the production of a bead that is used as a seal and as an interlayer in multiple glazings.

Manufacture of packing to windows

PREPARATION Of a PLASTIC FOR ITS EXTRUSION IN PARTICULAR IN the SHAPE Of a CORD GAUGE INTENDS TO BE USED OF JOINT AND GUIDE IN MULTIPLE GLAZINGS

Plastics Material Working Machine

Process of plastic extrusion

PROCESS AND DEVICE OF COATING Of a GLASS FIBRE FILAMENT

APPARATUS FOR THE EXTRUSION OF THERMOPLASTICALLY MOULDABLE PLASTICS FILMS

Thermoplastic scrap recycling - in screw extruder without nozzle with admixture of swelling agent extruding into open=ended moulds (NL 23.10.78)

Extrusion-moulding machine having a plurality of moulds mounted in barrels for parts made of plastic and similar material

DEVICE FOR THE FORMATION OF DROPS AND PASTILLES

Forming Different Plastic Products From a Single Melt

Systems () and methods for making different plastic products () in a single melting process are provided. A method includes melting a plastic resin in a first extruder () to form a melt () and transferring at least a portion of the melt to a second extruder (). Any portion of the melt () that is not transferred to the second extruder () is formed into a first plastic product (). Additives () are blended with the melt in the second extruder to form a second melt (), and a second plastic product () is formed from the second melt (). 2. The system of claim 1 , wherein the diverter system is configured to transfer additional portions of the melt to each of a plurality of product extruders.3. (canceled)4. The system of claim 1 , wherein the second product extruder has a capacity that is about 50% or less than the capacity of the main extruder.5. The system of claim 1 , wherein the second product extruder has a lower power demand than the main extruder for an equivalent amount of material.6. The system of claim 1 , wherein the main extruder system further comprises a melt pump.7. The system of claim 1 , wherein the second product extruder system does not comprise a melt pump.8. The system of claim 1 , wherein the first or second die comprises a pultrusion pipe die.9. The system of claim 1 , wherein the first or second die comprises a sheet die claim 1 , a film die claim 1 , or a combination sheet/film die.10. The system of claim 1 , wherein the first or second die comprises a blown film die.11. The system of claim 1 , wherein the additive feeder comprises a liquid injection system.12. The system of claim 1 , wherein the additive feeder comprises a melt pump feeder.13. The system of claim 1 , comprising a third product extruder system comprising:a third product extruder configured to blend the melt with a product additive, forming a third product melt;an additive feeder configured to feed the product additive to the third product extruder; anda third die configured to form ...

COMPOUND SWITCHING APPARATUS FOR FORMING TIRE COMPONENTS

One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel. 1. An apparatus for applying a mixture of a first compound and a second compound , the apparatus comprising:a first extruder for processing a first compound; anda second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel.2. The apparatus of wherein the first channel and the second channel are located adjacent each other.3. The apparatus of wherein the nozzle has a first passageway in fluid communication with the first channel claim 1 , and a second passageway in fluid communication with a second channel.4. The apparatus of wherein the nozzle has a first and second passageway claim 1 , wherein each passageway extends from the nozzle inlet to the nozzle outlet.5. The apparatus of wherein the nozzle has a single passageway which is in fluid communication with the outlet of the first channel and the outlet of the second channel.6. An apparatus for applying a mixture of a first compound and a second compound claim 1 , the apparatus comprising:a first extruder in fluid communication ...

METHODS FOR GEL REDUCTION IN POLYOLEFINS

Methods for extrusion of polyolefins ( ) that control specific energy input to the extruder ( ) for gel reduction. Disclosed herein is an example method for forming plastic products ( ) with reduced gels, comprising: melting a polyolefin resin ( ) in extruder ( ) to form a melt; adjusting specific energy input in the extruder ( ) to reduce gels in the melt; and forming the melt into a polyolefin product ( ). Disclosed herein is also an example method for forming plastic products ( ) with reduced gels, comprising: melting a polyolefin resin in extruder ( ) to form a melt; selecting a throttle valve ( ) position for gel reduction; setting the throttle valve ( ) at the selected throttle valve ( ) position to restrict flow of the melt out of the extruder ( ); and forming the melt into a polyolefin product ( ). 1. A method for forming plastic products with reduced gels , comprising:melting a polyolefin resin in extruder to form a melt;adjusting specific energy input in the extruder to reduce gels in the melt; andforming the melt into a polyolefin product.2. The method of claim 1 , wherein the step of adjusting the specific energy input comprises adjusting a throttle valve at an exit of the extruder to increase the specific energy input in the extruder.3. The method of claim 1 , wherein the step of adjusting the specific energy input comprises restricting flow of the melt out of the extruder.4. The method of claim 1 , wherein the step of adjusting the specific energy input comprises increasing suction pressure on a melt pump.5. The method of claim 1 , further comprising passing the melt through a screen pack claim 1 , wherein the screen pack comprises an inlet screen having a size from 20 mesh to 80 mesh claim 1 , one or more intermediate screens having a size of 100 mesh or greater claim 1 , and an outlet screen having a size from 20 mesh to 80 mesh.6. The method of claim 5 , wherein the one or more intermediate screens comprise a screen having a size from 20 mesh 80 ...

APPARATUS AND METHOD FOR MANUFACTURING RAW RUBBER STRIP

An apparatus for intermittently manufacturing a raw rubber strip comprises a screw extruder, an extruder head having a preforming nozzle, a gear pump therebetween, a pair of calendar rolls, a roll-gap changer for switching between a close state and an open state of calendar rolls, and a controller for controlling the gear pump, the calendar rolls and the roll-gap changer to let the calendar rolls in the open state prior to the stopping of the rotation of the calendar rolls. 1. A method for intermittently manufacturing a raw rubber strip by the use of an apparatus comprising a rubber extruder unit , a calendar unit disposed in front of the rubber extruder unit , and a controller , whereinthe rubber extruder unit comprises a screw extruder, an extruder head disposed at a front end of the rubber extruder unit, and a gear pump therebetween,the screw extruder comprises an extruder screw for kneading rubber materials supplied and pushing the kneaded rubber materials toward its outlet at the front end thereof,the extruder head comprises a nozzle block having a preforming nozzle for preforming the rubber extruded therefrom,the gear pump has gears and is positioned between the preforming nozzle and said outlet of the screw extruder so that, corresponding to repetition of rotation and stop of gears, the rubber received from the outlet of the screw extruder is intermittently extruded from the preforming nozzle,the calendar unit comprises a calendar disposed in front of the extruder head, and a roll-gap changer,the calendar comprises a pair of calendar rolls at least one of which is driven to rotate and between which the preformed rubber extruded from the preforming nozzle is roll shaped into the raw rubber strip having a finished thickness,the roll-gap changer switches between a close state in which a gap between the calendar rolls is decreased so as to roll shape the preformed rubber, and an open state in which the gap between the calendar rolls is increased so as not to ...

METHOD AND APPARATUS FOR CONTINUOUSLY PRODUCING A SEMI-FINISHED PRODUCT FOR THE PRODUCTION OF SELF-SEALING TYRES

An apparatus for producing a semi-finished product with a strip of sealing compound for building tyres, having at least one unsaturated styrene thermoplastic elastomer, one bonding resin and one cross-linking agent is described. 2. The apparatus as claimed in claim 1 , wherein the continuous mixer comprises a plurality of screws claim 1 , or blades claim 1 , housed in the respective inner chamber claim 1 , the continuous mixer being provided with mixing portions capable of conferring to the compound a high shear stress claim 1 , and with conveyor portions capable of conveying the compound being processed from one longitudinal end to the other of the inner chamber.3. The apparatus as claimed in claim 1 , wherein the continuous mixer is a co-rotating twin screw mixer.4. The apparatus as claimed claim 2 , wherein the continuous mixer has a diameter of the inner chamber greater than or equal to 18 mm and/or less than or equal to 420 mm claim 2 , the continuous mixer being structured so that a rotation velocity of the screws is greater than or equal to 100 rpm and/or less than or equal to 1200 rpm claim 2 , and with a torque greater than or equal to 20% and/or less than or equal to 90%.5. The apparatus as claimed in claim 1 , wherein respective inner chambers of the continuous mixer claim 1 , of the buffer device claim 1 , of the gear pump claim 1 , as well as the extrusion head claim 1 , lie on the same horizontal level.6. The apparatus as claimed in claim 1 , wherein the buffer device is a single-screw extruder comprising a single conveyor screw housed in the respective inner chamber claim 1 , wherein the conveyor screw is configured for conveying the sealing compound along the major extension direction of the respective inner chamber claim 1 , exerting thereon a substantially zero or very low mixing.7. The apparatus as claimed in claim 6 , wherein the buffer device has a diameter of the respective inner chamber greater than or equal to 40 mm and/or less than or equal ...

HIGH TG MONOLITHIC POLY(VINYL ACETAL) SHEET

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50° C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures. 1. A monolithic interlayer sheet formed from a composition comprising:(A) poly(vinyl acetal) resin in an amount of at least 60 wt. % based on the weight of the composition, wherein the Mw of the poly(vinyl acetal) resin does not exceed 150,000; and(B) a plasticizer in an amount of from 5 to 20 parts per one hundred parts of said poly(vinyl acetal) resin;wherein said interlayer sheet has a Tg of at least 46° C. and a melt flow index (“MFI”) of at least 0.65 grams/10 minutes when measured at 190° C. at a load of 2.16 kilograms, andwherein the interlayer sheet has a modulus E′ at 40° C. of at least 400,000,000 pascals and has a thickness of at least 5 mils.2. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 50° C.3. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 55° C.4. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 0.9.5. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 1.2.6. The interlayer sheet of claim 1 , wherein said composition contains at least 80 wt. % poly(vinyl acetal) resin.7. The interlayer sheet of claim 1 , wherein the Mw of the poly(vinyl acetal) resin does not exceed 140 claim 1 ,000.8. The interlayer sheet of claim 1 , wherein the Mw of ...

HIGH TG MONOLITHIC POLY(VINYL ACETAL) SHEET

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50° C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures. 1. A monolithic interlayer sheet formed from a composition comprising:(A) poly(vinyl acetal) resin in an amount of at least 60 wt. % based on the weight of the composition, wherein the Mw of the poly(vinyl acetal) resin does not exceed 150,000; and(B) a plasticizer in an amount of from 5 to 20 parts per one hundred parts of said poly(vinyl acetal) resin;wherein said interlayer sheet has a Tg of at least 46° C. and a melt flow index (“MFI”) of at least 0.65 grams/10 minutes when measured at 190° C. at a load of 2.16 kilograms, andwherein the interlayer sheet has a modulus E′ at 40° C. of at least 400,000,000 pascals and has a thickness of at least 5 mils.2. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 50° C.3. The interlayer sheet of claim 1 , wherein said composition has a Tg of at least 55° C.4. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 0.9.5. The interlayer sheet of claim 1 , wherein said composition has an MFI of at least 1.2.6. The interlayer sheet of claim 1 , wherein said composition contains at least 80 wt. % poly(vinyl acetal) resin.7. The interlayer sheet of claim 1 , wherein the Mw of the poly(vinyl acetal) resin does not exceed 140 claim 1 ,000.8. The interlayer sheet of claim 1 , wherein the Mw of ...

HAND-HELD THREE-DIMENSIONAL DRAWING DEVICE

A three-dimensional (3D) drawing device having a housing configured for manipulation by a user's hand and to accept a feed stock that is, in certain embodiments, a strand of thermoplastic. The drawing device has a nozzle assembly with an exit nozzle and a motor connected to a gear train that engages the strand of thermoplastic feed stock such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object. 1. A three-dimensional (3D) drawing device comprising:a housing configured to accept a feed stock;a nozzle assembly at least partially disposed within the housing and having an exit nozzle;a motor disposed within the housing; anda gear train disposed within the housing and coupled between the motor and the feed stock and configured such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object.2. The 3D drawing device of claim 1 , further comprising a heating element positioned adjacent to the exit nozzle and configured to melt the feed stock prior to extrusion through the exit nozzle.3. The 3D drawing device of claim 1 , further comprising a fan configured to provide a flow cooling air at exit nozzle.4. The 3D drawing device of claim 3 , wherein:the housing comprises an internal volume and at least one cooling port proximate to the exit nozzle, the cooling port in fluid communication with the internal volume; andthe fan is disposed within the housing and configured to draw air into the internal volume.5. The 3D drawing device of claim 4 , wherein the at least one cooling port is configured to direct a flow of cooling air from the internal volume onto the extruded feed stock at the exit nozzle.6. The 3D drawing device of claim 1 , further comprising an actuator configured to selectably cause the motor to rotate in at least a first direction that causes the feed stock to be extruded out of the exit nozzle.7. The 3D drawing device of claim 6 , ...

PROCESS FOR MAKING COMPOSITE POLYMER

The method of making a pellet comprising wood pulp fiber and thermoplastic polymer, comprising extruding an extrudate comprising 10 to 50 weight % wood pulp fiber and 45 to 85 weight % thermoplastic polymer through a die, cutting a pellet from the extrudate, removing the pellet from the extrudate with water having a temperature less than the extrudate, filtering the pellet from the water. In one embodiment the wood pulp fiber in the pellet has a moisture content of 1% or less. In one embodiment the wood fiber does not swell. 1. A method of making a pellet comprising wood pulp fiber and thermoplastic polymer , the method comprising:extruding an extrudate comprising 10 to 50 weight % wood pulp fiber and 45 to 85 weight % thermoplastic polymer through a die,cutting a pellet from the extrudate,removing the pellet from the extrudate with water having a temperature less than the extrudate, andfiltering the pellet from the water;wherein the wood pulp fiber in the pellet has a moisture content of 1% or less.2. The method of claim 1 , wherein the wood pulp fibers are bleached chemical wood pulp fibers.3. The method of claim 1 , wherein the thermoplastic polymer is selected from the group consisting of biopolymers claim 1 , polylactic acid claim 1 , cellulose acetate claim 1 , cellulose propionate claim 1 , cellulose butyrate claim 1 , polycarbonates claim 1 , polyethylene terephthalate claim 1 , polyolefins claim 1 , polyethylene claim 1 , high density polyethylene claim 1 , low density polyethylene claim 1 , linear low density polyethylene claim 1 , polypropylene claim 1 , polystyrene claim 1 , polystyrene copolymers claim 1 , acrylonitrile-butadiene-styrene copolymer claim 1 , styrene block copolymers claim 1 , polyvinyl chloride claim 1 , and recycled plastics.4. The method of claim 1 , further comprising:cooling the water filtered from the pellet, andrecycling the water to the extrudate.5. The method of claim 4 , wherein the wood pulp fibers are bleached chemical wood ...

HONEYCOMB STRUCTURE FORMING DIE

The honeycomb structure forming die includes a first die in which a central region on the side of a kneaded material discharging surface has a convex region projecting toward a downstream side in an extruding direction of a kneaded material, a ring-shaped second die, and a space forming member interposed between the first die and the second die. In the first die, first kneaded material introducing holes are formed and latticed first slits are formed on the side of the kneaded material discharging surface of the convex region, and in the second die, there are formed second kneaded material introducing holes and latticed second slits communicating with the second kneaded material introducing holes, and in a space formed by the space forming member, movement of a kneaded material is performed between the first kneaded material introducing hole and the second kneaded material introducing hole. 1. A honeycomb structure forming die comprising:a first die which is disposed on an upstream side in an extruding direction of a kneaded material of a forming raw material and in which a central region on the side of a kneaded material discharging surface has a convex region projecting toward a downstream side in the extruding direction; anda ring-shaped second die which is disposed on the downstream side of the first die and which possesses a shape complementary to the convex region,wherein in the central region of the first die, first kneaded material introducing holes and latticed first slits communicating with the first kneaded material introducing holes are formed,in a circumferential region surrounding the central region of the first die, the first kneaded material introducing holes are formed to pass through the circumferential region of the first die,in the ring-shaped second die, there are formed second kneaded material introducing holes into which the kneaded material discharged from the first kneaded material introducing holes formed in the circumferential region of the ...

HONEYCOMB STRUCTURE FORMING DIE

The honeycomb structure forming die includes a first die in which a central region on the side of a kneaded material discharging surface has a convex region projecting toward a downstream side in an extruding direction of a kneaded material, and a ring-shaped second die. In the first die, first kneaded material introducing holes are formed and latticed first slits are formed on the side of the kneaded material discharging surface of the convex region, and in the second die, there are formed second kneaded material introducing holes and latticed second slits communicating with the second kneaded material introducing holes, and the honeycomb structure forming die has a groove region where movement of the kneaded material is performed between the first kneaded material introducing hole and the second kneaded material introducing hole, in abutment surfaces of the first die and the second die. 1. A honeycomb structure forming die comprising:a first die which is disposed on an upstream side in an extruding direction of a kneaded material of a forming raw material and in which a central region on the side of a kneaded material discharging surface has a convex region projecting toward a downstream side in the extruding direction; anda ring-shaped second die which is disposed on the downstream side of the first die and which possesses a shape complementary to the convex region,wherein in the central region of the first die, first kneaded material introducing holes and latticed first slits communicating with the first kneaded material introducing holes are formed,in a circumferential region surrounding the central region of the first die, the first kneaded material introducing holes are formed to pass through the circumferential region of the first die,in the ring-shaped second die, there are formed second kneaded material introducing holes into which the kneaded material discharged from the first kneaded material introducing holes formed in the circumferential region of the ...

SYSTEM AND METHOD FOR CONTINUOUSLY MANUFACTURING CURED MEMBRANES

A method of continuously manufacturing a cured membrane includes continuously compounding and mixing a vulcanizable rubber composition in a mixing extruder while continuously removing gasses from the vulcanizable rubber composition during mixing with a vacuum. The vulcanizable rubber composition may be continuously extruded to form an extrudate, which may be continuously calendered to form a green membrane. The green membrane may be continuously cured, such as by a hot air conveyor curing system, to form a cured membrane. 1. A system for continuously manufacturing cured membranes comprising:(i) a planetary mixing extruder including a vacuum adapted to subject a vulcanizable rubber composition therein to a reduced pressure in a portion of the mixing extruder;(ii) a roller head die for extruding and calendering the vulcanizable rubber composition to form a green membrane; and(iii) a hot air conveyor for continuously curing the green membrane to produce a cured membrane.2. The system of claim 1 , further comprising a pre-mixing extruder in communication with the planetary extruder for premixing one or more components of the vulcanizable rubber composition.3. The system of claim 1 , further comprising a pump in communication with the planetary mixing extruder and the roller head die to increase the pressure of the vulcanizable rubber composition.4. The system of claim 1 , wherein the planetary mixing extruder includes a barrel claim 1 , a main spindle claim 1 , and a plurality of planetary spindles positioned radially between the barrel and the main spindle.5. The system of claim 1 , wherein the planetary mixing extruder includes a feed section and at least one compounding section.6. The system of claim 1 , wherein at least one of said planetary spindles is a back-cut spindle to provide for back mixing within a portion of the planetary mixing extruder.7. The system of claim 1 , wherein said planetary mixing extruder includes at least 6 planetary spindles.8. The system ...

GEAR PUMP EXTRUDING MACHINE

A gear pump extruding machine for extruding a rubber material includes a screw feeder, a gear pump provided on an outlet side of the screw feeder, and a die disposed on an outlet side of the gear pump. The gear pump extruding machine further includes protrusive members that are movable forward and rearward to protrude into a fluid communication channel that keeps the screw feeder and the gear pump in fluid communication with each other, to thereby change the volume of the fluid communication channel. An actuator is provided for moving the protrusive members to protrude into the fluid communication channel, and is controlled by a controller. When the volume of the fluid communication channel is changed, the rate at which the rubber material is extruded is adjusted to prevent the rubber material from being warmed excessively at all times. 1. A gear pump extruding machine for extruding a viscous material , having a screw feeder including a tubular casing and a screw disposed in the tubular casing , for supplying the viscous material while kneading same upon rotation of the screw , a gear pump including a pair of gears provided on an outlet side of said screw feeder with a fluid communication channel interposed therebetween , for delivering the viscous material with the gears , and a die disposed on an outlet side of said gear pump , for molding and discharging the viscous material , said gear pump extruding machine comprising:protrusive members movable forward and rearward to protrude into said fluid communication channel which keeps said screw feeder and said gear pump in fluid communication with each other, to thereby change said fluid communication channel in volume;an actuator for moving said protrusive members forward and rearward in said fluid communication channel; anda controller for controlling said actuator,wherein said controller is operable to control said actuator to move said protrusive members forward and rearward to thereby change the volume of said ...

MIXER STRUCTURE FOR A FILM DIE AND A FILM DIE

A mixer structure for a film die for a polymer melt includes multiple web elements. The web elements include a first web element and a second web element. The first web element and the second web element include at least an end, which is connected to a base. A film die includes a first tool element, a second tool element, and a flow channel for the polymer melt extending between the first tool element and the second tool element. The mixer structure is arranged in the flow channel. The mixer structure is held in at least one of the tool elements by a holding element. 1. A mixer structure for a film die for a polymer melt comprising a plurality of web elements for arrangement in a flow channel formed by the film die for the polymer melt , whereby the flow channel is configured for the flow of the polymer melt therethrough in a direction of flow in an operating state , whereby the direction of flow is arranged substantially parallel to a longitudinal axis of the flow channel , whereby the mixer structure comprises a first web element and a second web element whereby at least one of the first web element or the second web element comprises at least an end , which is connected to a base configured to be received in an inner wall of the film die , whereby at least one of the first web elements or the second web elements is received at least partially in the base.2. The mixer structure of claim 1 , whereby the first web element is arranged crosswise to the second web element claim 1 , such that in particular a distance between the end of the first web element and the end of the second web element substantially corresponds to a width of the base.3. The mixture structure of claim 1 , whereby each of the ends of the first and second web elements is connected to the base.4. The mixer structure of claim 1 , whereby the base comprises a fixing means for connection with a tool element.5. The mixture structure of claim 1 , whereby the base is arranged consecutively to at least ...

FLUORINATED COPOLYMER COMPOSITION, METHOD FOR ITS PRODUCTION, AND MOLDED PRODUCT

To provide a fluorinated copolymer composition having improved impact resistance and excellent moldability without impairing the excellent heat resistance and mechanical properties inherent to a thermoplastic heat-resistant resin. This fluorinated copolymer composition comprises a thermoplastic resin A being a melt-moldable heat-resistant thermoplastic resin and a fluorinated elastomer B being a fluorinated elastic copolymer, wherein the fluorinated elastomer B is dispersed in the thermoplastic resin A, the number average particle diameter of the fluorinated elastomer B is from 1 to 300 μm, the volume ratio of the thermoplastic resin A to the fluorinated elastomer B is from 97:3 to 55:45, and the fluorinated copolymer composition has a flexural modulus of from 1,000 to 3,700 MPa. 3. The fluorinated copolymer composition according to claim 1 , wherein the thermoplastic resin A is at least one type of thermoplastic heat resistant resin selected from the group consisting of a polyaryl ether ketone claim 1 , a polyether sulfone claim 1 , an aromatic polyether amide and a polyaryl sulfone.4. The fluorinated copolymer composition according to claim 1 , wherein said polyaryl ether ketone is at least one member selected from the group consisting of a polyether ketone claim 1 , a polyether ether ketone and a polyether ketone ketone.5. A molded product obtained by molding a molding material comprising the fluorinated copolymer composition as defined in .6. A film composed of the molded product as defined in .7. The film according to claim 6 , which has a surface roughness (Ra) of less than 4.0.8. A method for producing a film claim 6 , comprising melt extrusion at a die temperature of from 350 to 420° C. to produce the film as defined in .9. An injection molded product obtained by injection molding a molding material comprising the fluorinated copolymer composition as defined in .10. The molded product according to claim 5 , which is used as a sliding member.11. The injection ...

DEGASSING METHOD, DEGASSING DEVICE AND USE OF SCREW ELEMENTS

The present invention relates to a process for devolatilising polymer-containing media such as, in particular, polymer melts, polymer solutions and dispersions and also devolatilisation apparatuses for carrying out the abovementioned process. 1. A process for removing volatile compounds from a polymer-containing medium which contains at least one polymer and at least one volatile compound , the process comprising: [{'sub': n', 'n, 'a barrel and n barrel holes Bhaving associated hole diameters Dwhere n is an integer,'}, {'sub': n', 'n', 'n, 'claim-text': [{'sup': 'm', 'sub': max n', 'n', 'n, 'm relative maxima Rin respect of a radial dimension of the cross-sectional profile to the axis of rotation Aof the screw W, where m is an integer from 1 to 8,'}, {'sub': max n', 'n', 'n', 'max n', 'max n', 'n, 'a maximum value Rin respect of the radial dimension of the cross-sectional profile to the axis of rotation Aof the screw W, where Rfulfils: R<=(D/2)'}], 'one or more screws Warranged concentrically in each of the barrel holes Band configured to be rotatable within the barrel holes, wherein each screw has an axis of rotation Aand is equipped with treatment elements, the treatment elements having a cross-sectional profile orthogonal to the axis of rotation, wherein the cross-sectional profile in a circumferential direction has, 'at least one feed zone,', 'one or more devolatilisation zones comprising in each case at least one devolatilisation opening which is suitable for discharge of volatile constituents from a polymer-containing medium from the extruder, and', 'at least one discharge zone,, 'a) introducing the polymer-containing medium into a devolatilisation apparatus comprising [{'sup': 'm', 'sub': 'max n', 'claim-text': {'sub': n', 'max n', 'n, 'sup': 'm', '0.420 D Подробнее

Method of Forming Dynamically Vulcanized Thermoplastic Elastomer Films and Films Formed Therefrom

Disclosed herein is a process to form a dynamically vulcanized thermoplastic elastomer film, also referred to as the DVA film, directly from a DVA raw material. The process comprises the steps of: 1) forming a thermoplastic elastomeric material melt comprising an elastomer and a thermoplastic resin in a first mixer under conditions such that the thermoplastic elastomeric material is dynamically vulcanized; 2) passing the thermoplastic elastomeric material melt formed in the first mixer through a second mixer to form a uniformed melt; and 3) passing the thermoplastic elastomeric material melt exiting from the second mixer through a film die to form a thermoplastic elastomer material film. 1. A method of forming a dynamically vulcanized thermoplastic elastomer film , the process comprising the steps of:1) forming a thermoplastic elastomeric material melt comprising an elastomer and a thermoplastic resin in a first mixer under conditions such that the thermoplastic elastomeric material is dynamically vulcanized, wherein the elastomer forms a discontinuous phase of small particles in a continuous phase of the thermoplastic resin, and the elastomer and the thermoplastic resin are present in a weight ratio in the range of 55:45 to 80:20;2) passing the thermoplastic elastomeric material melt formed in the first mixer through a second mixer to form a uniformed thermoplastic elastomeric material melt; and3) passing the uniformed thermoplastic elastomeric material melt through a film die to form a thermoplastic elastomer material film.2. The method of claim 1 , wherein the first mixer is an extruder having at least two screws.3. The method of claim 1 , wherein the thermoplastic elastomeric material melt formed in the first mixer is fed into the second mixer at a temperature of from about 210° C. to about 300° C.4. The method of claim 3 , wherein the thermoplastic elastomeric material melt formed in the first mixer is fed into the second mixer through a melt gear pump.5. The ...

PROCESS FOR PRODUCING FOAMS BASED ON THERMOPLASTIC POLYURETHANES

A process for producing foamed thermoplastic polyurethane particles comprises the steps of a) melting a thermoplastic polyurethane in a first extruder (E), b) injecting a gaseous blowing agent in a second extruder (E), c) impregnating the gaseous blowing agent homogeneously into the thermoplastic polyurethane melt in a third extruder (E), d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles. 1. A process for producing foamed thermoplastic polyurethane particles , the process comprising:{'b': '1', 'a) melting a thermoplastic polyurethane in a first extruder E,'}{'b': '2', 'b) injecting a gaseous blowing agent in a second extruder E,'}{'b': '3', 'c) impregnating the gaseous blowing agent homogeneously into the thermoplastic pol-yurethane melt in a third extruder E, and'}d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles.2. The process according to claim 1 , wherein a bulk density of the foamed thermoplastic polyurethane particles formed in step d) ranges from 30 to 250 kg/m3.3. The process according to claim 1 , wherein the gaseous blowing agent comprises CO2 claim 1 , N2 claim 1 , or a combination of CO2 and N2.4132. The process according to claim 1 , wherein a single screw extruder is used as the first extruder E and the third extruder E claim 1 , and a twin extruder is used as the second Extruder E.5. The process according to claim 1 , wherein the water in the underwater granulation device has a pressure in the range from 1 to 20 bar and a temperature in the range from 10 to 50° C. This invention relates to a process for production of expanded pellets from a polymer melt comprising a blowing agent. ...

PROCESS AND SYSTEM FOR FABRICATING A COLORED POWDER COATING COMPOSITION FROM SOLID FILAMENTS

A process and system for rapidly fabricating small batches of powder coating compositions having desired colors from one or more solid input filaments. An additive manufacturing filament fabricator feeds one or more single-color solid polymer input filaments into a heated mixer in accordance with an input formulation to be liquefied and mixed to produce a homogenous extrudate mixture. The extrudate mixture is solidified on an extrudate receiving platform and is then comminuted by an extrudate mill into a finished powder coating composition having a desired color. 1. A system for fabricating a colored powder coating composition from one or more solid input filaments comprising:a filament feeder comprised of a plurality of filament drivers;a filament mixer having a plurality of filament inlets each joined through an inlet channel in a mixing chamber housing to an interior mixing chamber;said mixing chamber housing having a heating element and an extrudate channel between said interior mixing chamber and a nozzle opening;a mixing mechanism within said mixing chamber;an extrudate receiving platform;an extrudate powder mill; andan electronic fabricator controller having a fabricator processor, a fabricator memory, and a fabricator bus.2. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a filament spool support.3. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a filament tube joining an output of each filament driver with an input of a filament inlet.4. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a mixing chamber temperature sensor.5. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a passive cooling mechanism for said filament inlets.6. The system for fabricating a ...

METHOD FOR CONTROLLING THE THICKNESS OF A CONTINUOUS ELONGATED ELEMENT MADE OF ELASTOMERIC MATERIAL IN A PROCESS FOR BUILDING TYRES

A method for controlling the thickness of a continuous elongated element made of elastomeric material, applied according to coils wound on a forming support, includes: advancing a head end of the continuous elongated element toward the forming support; subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; and subjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during the application on the forming support. During the first stretching, a span of the continuous elongated element adjacent to the head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient, in a manner so as to confer, also to the span adjacent to the head end, a stretch and a section similar or substantially equivalent to those of the rest of the continuous elongated element. 1. (canceled)2. An apparatus for building a tyre for vehicle wheels , comprising:a forming support;an extruder for dispensing a continuous elongated element made of elastomeric material;a conveyor arranged between the extruder and the forming support, wherein the conveyor comprises two opposite conveyor belts having respective conveyor branches arranged face to face and adapted to advance, in contact therewith, the continuous elongated element from the extruder toward the forming support, wherein an output opening of the extruder opens between mutually converging input portions of the respective conveyor branches of the two opposite conveyor belts;a first conveyor belt of the two opposite conveyor belts being mounted on a frame configured for movement by an actuator, wherein movement of the first conveyor belt toward and away from a second conveyor belt of the two opposite conveyor belts varies a mutual compression force between the two opposite conveyor belts during advancing of the continuous elongated ...

METHOD FOR PRODUCING A FOAM BODY BY MEANS OF AN EXTRUSION PROCESS, AND EXTRUSION DEVICE FOR PRODUCING A FOAM BODY

A method for producing a foamed body includes generating a plastics melt within a casing of a first extruder; and conveying the plastics melt to an outlet nozzle of a second extruder, having an extruder screw apparatus. The conveyed plastics melt has foaming agent and expands after being conducted through the outlet nozzle. In first length sections of the extruder screw apparatus of the second extruder, the plastics melt is conveyed and/or mixed. In second length sections of the extruder screw apparatus of the second extruder, the plastics melt is conveyed and pressure is built up in the plastics melt. The plastics melt is guided alternately through first and second length sections. Before the plastics melt is guided through the outlet nozzle, temperature differences between different radial positions in the cross section of the plastics melt are reduced, and the thermally homogenized plastics melt is conducted through the outlet nozzle. 1. A method for producing a foamed body by extrusion , comprising:generating a plastics melt within a casing of a first extruder; andconveying the plastics melt to an outlet nozzle of a second extruder, which has an extruder screw apparatus, wherein the conveyed plastics melt has foaming agent and expands after having been conducted through the outlet nozzle, wherein, in first length sections of the extruder screw apparatus of the second extruder, the plastics melt is conveyed and/or mixed, and, in second length sections of the extruder screw apparatus of the second extruder, the plastics melt is conveyed and pressure is built up in the plastics melt, wherein the plastics melt is guided alternately through first and second length sections, and thus, before the plastics melt is guided through the outlet nozzle, temperature differences between different radial positions in the cross section of the plastics melt are reduced, and the thermally homogenized plastics melt is conducted through the outlet nozzle, and wherein, furthermore, ...

System and Process for Halogenating Olefinic-Derived Elastomers in the Bulk Phase

A system for halogenating olefinic-based elastomer, the system comprising a first extruder, a first kneader vessel downstream of said first extruder and in fluid communication with said first extruder, a second extruder downstream of said first kneader vessel and in fluid communication with said first kneader vessel, a second kneader vessel downstream of said second extruder and in fluid communication with said second extruder; and a third extruder downstream of said second kneader vessel and in fluid communication with said second kneader vessel. 1. A system for halogenating olefinic-based elastomer , the system comprising:(i) a first extruder;(ii) a first kneader vessel downstream of said first extruder and in fluid communication with said first extruder;(iii) a second extruder downstream of said first kneader vessel and in fluid communication with said first kneader vessel;(iv) a second kneader vessel downstream of said second extruder and in fluid communication with said second extruder; and(v) a third extruder downstream of said second kneader vessel and in fluid communication with said second kneader vessel.2. The system of claim 1 , where said first extruder is a screw extruder adapted to compact and heat olefinic-based elastomer.3. The system of claim 1 , where said first kneader vessel is a sealed vessel that is adapted to maintain gaseous reactants that are introduced into said kneader vessel.4. The system of claim 1 , where said first kneader vessel in fluid communication with a gas loop adapted to introduce gaseous reactants into said kneader vessel and remove gaseous by-products from said kneader vessel.5. The system of claim 4 , where said gas loop includes reactors for the neutralization of said gaseous by-products or the regeneration of gaseous reactants from said gaseous by-products.6. The system of claim 1 , where said first kneader vessel is adapted to deform and expose unreacted surface area of olefinic-based elastomer within said first kneader ...

POLYMERIC COMPOSITES

A composition including 6 to 50 weight percent wood pulp fiber and 45 to 93.45 weight percent thermoplastic polymer. In some embodiments, the average dispersion of the wood pulp fibers within the thermoplastic polymer is equal to or greater than 90% as determined by the Dispersion Test. In some embodiments, the dilution level for detection in a bag at 40° C. is equal to or less than 450 as determined by ASTM E679. In some embodiments, the composition further includes 0.5 to 5 weight percent of an additive, such as a compatibilizer, a coupling agent, an anti-oxidant, and/or a lubricant. In some embodiments, the wood pulp fiber is bleached chemical wood pulp fiber. 1. A composition comprising 6 to 50 weight percent wood pulp fiber and 45 to 93.45 weight percent thermoplastic polymer , wherein the average dispersion of the wood pulp fibers within the thermoplastic polymer is equal to or greater than 90% as determined by the Dispersion Test.2. The composition of claim 1 , further comprising 0.5 to 5 weight percent of an additive claim 1 , wherein the additive includes one or more additives selected from the group consisting of a compatibilizer claim 1 , a coupling agent claim 1 , an anti-oxidant claim 1 , and a lubricant.3. The composition of claim 2 , wherein the additives comprise a lubricant in the form of mineral oil claim 2 , and wherein the composition comprises no more than 1.0 weight percent lubricant.4. The composition of claim 1 , wherein the thermoplastic polymer is selected from the group consisting of a biopolymer claim 1 , a polycarbonate claim 1 , polyethylene terephthalate claim 1 , a polyolefin claim 1 , polystyrene claim 1 , a polystyrene copolymer claim 1 , acrylonitrile-butadiene-styrene copolymer claim 1 , a styrene block copolymer claim 1 , polyvinyl chloride claim 1 , a polyolefin-graft-maleic anhydride copolymer claim 1 , and a recycled plastic.5. The composition of claim 4 , wherein the thermoplastic polymer comprises a biopolymer selected from ...

MANUFACTURING OF SMALL FILM STRIPS

The present invention relates to methods for forming films. In particular, the present invention relates to the formation of films on a substrate via the use of individual pumps to deposit individual wet film products onto a substrate. 1. A method of forming a plurality of individual film products , comprising the steps of:(a) providing a reservoir housing a film forming matrix;(b) providing a plurality of individual volumetric pumps in association with said reservoir;(c) providing a plurality of orifices, wherein each orifice is associated with an individual volumetric pump;(d) feeding said film forming matrix from said reservoir to said individual volumetric pumps;(e) dispensing a predetermined amount of said film forming matrix from each of said volumetric pumps through an orifice associated therewith; and(f) extruding a plurality of individual wet film products onto a substrate.2. The method of claim 1 , wherein said substrate is a backing film.3. The method of claim 1 , wherein said substrate moves in a first direction from said plurality of orifices to a drying oven.4. (canceled)5. The method of claim 1 , wherein steps (d)-(f) are repeated.6. The method of claim 5 , wherein said individual wet film product is extruded onto a region of said substrate onto which no individual wet film product has already been extruded.78.-. (canceled)9. The method of claim 1 , wherein each of said individual volumetric pumps dispenses about 4 microliters to about 250 microliters per stroke.10. The method of claim 1 , wherein said film forming matrix is at least 25% solids.11. The method of claim 1 , further comprising the step:(g) Drying said plurality of individual wet film products to form a plurality of dried individual film products.12. The method of claim 11 , wherein said plurality of dried individual film products are die cut.13. The method of claim 1 , wherein said individual volumetric pumps are piston pumps.1416.-. (canceled)17. The method of claim 1 , wherein each of ...

Material Dispensing System

Additive manufacturing systems and apparatus include, in one aspect, a material deposition system including an extruder for deposition materials, the extruder including two or more material entry ports, a mixing chamber, and an exit orifice; and a controller coupled with the extruder to dynamically change delivery rates of the deposition materials to be mixed in the mixing chamber before flowing from the exit orifice; wherein the controller combines a desired volume flow rate of material to flow from the exit orifice with a mix ratio to specify the delivery rates of the deposition materials. The system can include filament drive systems to feed the thermoplastic materials in filament form into the entry ports, and the controller can dynamically change the mix ratio when operating the filament drive systems to control one or more properties of the material to flow from the exit orifice.

EXTRUDER SYSTEM FOR EXTRUDING CORD REINFORCED EXTRUDATE

The invention relates to an extruder system and a method for extruding cord reinforced extrudate, wherein the extruder system comprises an extruder head with a die for receiving extrusion material and a cord guide for guiding cords in a common cord plane in a cord direction into the die, wherein the extruder system comprises a first extruder and a second extruder, wherein the extruder head comprises a first flow channel and a second flow channel, wherein the extruder system further comprises a first pump and a second pump for receiving the extrusion material from the first extruder and the second extruder and for directing said extrusion material into the first flow channel and the second flow channel. 133-. (canceled)34. An extruder system for extruding cord reinforced extrudate , wherein the extruder system comprises an extruder head with a die for receiving extrusion material and a cord guide for guiding cords side by side in a common cord plane in a cord direction into the die so that , in use , the cords are embedded in the extrusion material in the die , wherein the extruder system comprises a first extruder and a second extruder external to the extruder head , wherein the extruder head comprises a first flow channel that debouches into the die from a first side of the cord plane and a second flow channel that debouches into the die from a second side of the cord plane opposite to the first side , wherein the extruder head has a feeding plane that extends orthogonal to the cord plane and parallel to the cord direction , wherein the first extruder and the second extruder are arranged for supplying the extrusion material in a first supply direction and a second supply direction , respectively , wherein the first supply direction and the second supply direction are oblique with respect to the feeding plane , wherein the extruder system further comprises a first pump between the first extruder and the first flow channel and a second pump between the second ...

Rubber Preforming Apparatus

A rubber preforming apparatus includes a direct drive motor unit slidably disposed on a base unit. The direct drive motor unit includes a drive motor and a deceleration mechanism. The deceleration mechanism includes an input shaft coupling and an output shaft coupling axially aligned with and co-rotatably connected to the input shaft coupling. A drive spindle of the drive motor is inserted into and rotating together with the input shaft coupling. An extruder casing is disposed adjacent to the output shaft coupling and has a squeezing space. An extruder screw is disposed in the squeezing space, and includes a screw shaft with one end coaxially inserted into and rotating together with the output shaft coupling. 1. A rubber preforming apparatus , comprising:a base unit; a drive motor including a drive spindle, and', 'a deceleration mechanism including a casing, an input shaft coupling and an output shaft coupling, said input shaft coupling being rotatably disposed in said casing, said drive spindle being inserted into and rotating together with said input shaft coupling, said output shaft coupling being axially aligned and co-rotatably connected to said input shaft coupling, and having a rotation speed smaller than that of said input shaft coupling;, 'a direct drive motor unit slidably disposed on said base unit, and including'} an extruder casing disposed adjacent to said output shaft coupling and having a squeezing space for accommodating a rubber material,', 'a heating member to heat said extruder casing, and', 'an extruder screw disposed in said squeezing space, and including a screw shaft with one end removably and coaxially inserted into and rotating together with said output shaft coupling for extruding the rubber material; and, 'an extruder unit including'}a die connected to said extruder casing oppositely of said output shaft coupling for forming the rubber material extruded from said extruder unit into a rubber rod.2. The rubber preforming apparatus as ...

METHOD FOR CONTROLLING THE THICKNESS OF A CONTINUOUS ELONGATED ELEMENT MADE OF ELASTOMERIC MATERIAL IN A PROCESS FOR BUILDING TYRES

A method for controlling the thickness of a continuous elongated element made of elastomeric material, applied according to coils wound on a forming support, includes: advancing a head end of the continuous elongated element toward the forming support; subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; and subjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during the application on the forming support. During the first stretching, a span of the continuous elongated element adjacent to the head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient, in a manner so as to confer, also to the span adjacent to the head end, a stretch and a section similar or substantially equivalent to those of the rest of the continuous elongated element. 1. (canceled)2. A method for controlling thickness of a continuous elongated element made of elastomeric material applied according to coils wound on a forming support , comprising:advancing a head end of the continuous elongated element toward the forming support;subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; andsubjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during application on the forming support,wherein, during the first stretching, a span of the continuous elongated element adjacent to a head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient.3. The method according to claim 2 , wherein the supplementary stretch coefficient is equal to a product of the first stretch coefficient and the second stretch coefficient.4. The method according to claim 2 , wherein ...

METHOD FOR PRODUCING A FOAMED BODY BY EXTRUSION AND EXTRUSION DEVICE FOR PRODUCING A FOAMED BODY

A method and an extrusion device for producing a foamed body. A plastics melt is produced inside the casing of a first extruder. The plastics melt is conveyed to an outlet die of a second extruder. The conveyed plastics melt has a foaming agent and expands after being fed through the outlet die. Before the plastics melt is fed through the outlet die, variations in temperature between different radial positions over the cross-section of the plastics melt are reduced by an extruder screw device which has a number of screw spindles distributed around the periphery. The plastics melt which is thus thermally homogeneous is fed through the outlet die. 1. A method for producing a foamed body by extrusion , comprising:generating a plastics melt within a casing of a first extruder; andconveying the plastics melt to an outlet nozzle of a second extruder, wherein the conveyed plastics melt has foaming agent and expands after having been conducted through the outlet nozzle, wherein, in the first and/or second extruder, the plastics melt is conveyed by an extruder screw apparatus which has multiple screw spindles which are distributed circumferentially around the extruder screw apparatus and which rotate at least partially in recessed fashion within the extruder screw apparatus, and thus, before the plastics melt is guided through the outlet nozzle, temperature differences between different radial positions in the cross section of the plastics melt are reduced, and the plastics melt thermally homogenized in this way is conducted through the outlet nozzle.2. The method as claimed in claim 1 , wherein the plastics melt is conveyed from the first extruder to the second extruder by way of a connecting extruder claim 1 , wherein an extruder screw apparatus of the connecting extruder has multiple screw spindles which are distributed circumferentially around the extruder screw apparatus and by which those fractions of the plastics melt which are present at different radial positions of ...

BARREL ASSEMBLY AND METHOD OF SETTING UP AN EXTRUSION SYSTEM UTILIZING THE BARREL ASSEMBLY

A barrel assembly through which flowable material is delivered to a die assembly through which the flowable material is delivered to form a sheet layer. The barrel assembly has: a conduit having a body with a length defining a lengthwise flow passage between upstream and downstream ends; and a support assembly for the conduit. The support assembly has: a) a conduit engaging assembly; and b) a guide assembly through which the conduit body and conduit engaging assembly are moved guidingly relative to a base, to which the guide assembly is mounted, in a path that is substantially parallel to the length of the conduit body. 1. A barrel assembly through which flowable material is delivered to a die assembly through which the flowable material is delivered to form a sheet layer , the barrel assembly comprising:a conduit having a body with a length defining a lengthwise flow passage between upstream and downstream ends; and a) a conduit engaging assembly; and', 'b) a guide assembly through which the conduit body and conduit engaging assembly are moved guidingly relative to a base, to which the guide assembly is mounted, in a path that is substantially parallel to the length of the conduit body., 'a support assembly for the conduit, the support assembly comprising2. The barrel assembly according to wherein at least a portion of the conduit engaging assembly is fixed to the conduit body to follow lengthwise movement of the conduit body.3. The barrel assembly according to wherein the guide assembly comprises at least one rail on one of the conduit engaging assembly and base and a first slot on the other of the conduit engaging assembly and base claim 1 , the one rail and first slot configured so that the one rail is guided in the first slot in a substantially first linear path.4. The barrel assembly according to wherein the first linear path is substantially parallel to the length of the body.5. The barrel assembly according to wherein the guide assembly comprises another ...

ULTRA-HIGH PURITY POLYCARBONATES HAVING GOOD INHERENT COLOR AND THERMAL RESISTANCE AND A DEVICE AND A METHOD FOR PRODUCING THE SAME

The invention relates to polycarbonates with extremely low residual levels of volatile constituents and thermal degradation products, and also improved optical properties, especially Yellowness Index (YI) and good thermal stability, from solvent-containing polymer melts. The invention further relates to an apparatus and a process for preparing these polycarbonates with the aid of a devolatilizing extruder with at least three devolatilizing zones, and zones for introducing entraining agent into dispersion are present upstream of at least three devolatilizing zones. 114-. (canceled)15. An aromatic polycarbonate comprising less than 10 ppm of aromatic chlorine compounds , less than 1 ppm of dichloromethane , less than 15 ppm of monohydric phenols , and less than 10 ppm of aromatic compounds containing no chlorine.16. The aromatic polycarbonate as claimed in claim 15 , comprising less than 5 ppm of aromatic compounds containing no chlorine.17. The aromatic polycarbonate as claimed in claim 15 , comprising less than 0.01 ppm of carbon tetrachloride claim 15 , less than or equal to 2 ppm of diaryl carbonates claim 15 , less than or equal to 2 ppm of bisphenols claim 15 , less than 0.05 ppm of alkali metals claim 15 , less than 1 ppm of cresols claim 15 , and less than 300 ppm of phenolic OH groups.18. The aromatic polycarbonate as claimed in claim 16 , comprising less than 0.01 ppm of carbon tetrachloride claim 16 , less than or equal to 2 ppm of diaryl carbonates claim 16 , less than or equal to 2 ppm of bisphenols claim 16 , less than 0.05 ppm of alkali metals claim 16 , less than 1 ppm of cresols claim 16 , and less than 300 ppm of phenolic OH groups.19. The aromatic polycarbonate as claimed in claim 15 , comprising less than 1 ppm of pyridine.20. The aromatic polycarbonate as claimed in claim 15 , comprising less than 0.1 ppm of pyridine.21. The aromatic polycarbonate as claimed in claim 16 , comprising less than 1 ppm of pyridine.22. The aromatic polycarbonate as ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) washing a plurality of flakes of recycled PET;(B) providing a PET crystallizer;(C) after the step of washing the first plurality of flakes, passing the plurality of flakes of recycled PET through the PET crystallizer to at least partially dry the plurality of flakes of recycled PET;(D) at least partially melting the plurality of flakes into a polymer melt; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;', 'a first single-screw extruder section comprising a first single extruder screw for melting the plurality of flakes of recycled PET to form a polymer melt and feeding the polymer melt into the MRS section;', 'a second single-screw extruder section comprising a second single extruder screw for transporting the polymer ...

PROCESS AND APPARATUS FOR BORDERING A CORRUGATED PLASTIC PANEL AND PANEL THUS OBTAINED

The present invention is related to a process for bordering a corrugated plastic panel and to a panel obtained through that process. In particular, the invention is related to a process for making a corrugated plastic panel comprising a bordering made in-line or out-line in order to close the openings outwards. The invention is also related to an apparatus for bordering according to that process. The panel is sealed and shock resistant thanks to the laying of thermoplastic elastomeric material. 1. Process for bordering a corrugated plastic panel , comprising the following steps in succession:a) providing a corrugated plastic panel having at least one perimetric open border;b) heating a thermoplastic elastomeric material till its fusion point;c) heating at least a portion of said border;d) extruding said fused thermoplastic elastomeric material;e) laying said fused material along all the perimetric border of said panel in order to fill at least partially the corrugations of the panel to seal them towards the exterior,wherein the laying step is carried out with an angle less than 45° with respect to the tangent to the point of the laying.2. Process according to claim 1 , wherein step b) consists in fusing a thermoplastic elastomeric (TPE) material.3. Process according to claim 2 , wherein said thermoplastic elastomeric material is selected among compound of polyolefin claim 2 , thermoplastic elastomers of styrene origin or of polyolefin origin.4. Process according to claim 3 , wherein said thermoplastic elastomeric material is an open-cell foamed material or closed-cell foamed material.5. Process according to claim 1 , wherein said step e) of laying of the extruded material is carried out with an inclination of 4°-45° with respect to the tangent to the laying point claim 1 , and the exit pressure of the material is comprised between 20 bar and 140 bar.6. Process according to claim 1 , comprising a step of blocking of the fluid material flow in correspondence of the ...

FILAMENT HEATERS CONFIGURED TO FACILITATE THERMAL TREATMENT OF FILAMENTS FOR EXTRUDER HEADS IN THREE-DIMENSIONAL OBJECT PRINTERS

An apparatus includes a heater for converting a filament of extrusion material into thermoplastic material. The heater has a channel configured to change the cross-sectional shape of the filament to a cross-sectional shape that has a greater surface area than the surface area of the filament before the heater receives the filament. The channel of the heater can also be configured to drive the center portion of the filament toward the heated walls of the channel and to mix thermoplastic material in the channel while exposing the center portion of the filament to the heated wall of the channel. 1. An apparatus comprising:an extruder head having a manifold configured to store thermoplastic material and at least one nozzle through which thermoplastic material from the manifold can be emitted;a mechanical mover configured to move extrusion material from a supply of extrusion material along a path, the extrusion material having a first cross-sectional shape; anda heater having a channel positioned along the path of the extrusion material to receive the extrusion material and at least one heating element configured to melt the extrusion material in the channel to form thermoplastic material, the channel in the heater being fluidly connected to the manifold in the extruder head to enable the thermoplastic material to enter the manifold and the channel in the heater is configured with the first cross-sectional shape at a first position and with a second cross-sectional shape at a second position, the second cross-sectional shape being different than the first cross-sectional shape, to enable the channel in the heater to increase a surface area of the filament.2. The apparatus of wherein the first cross-sectional shape of the channel at the first position is circular and the second cross-sectional shape of the channel at the second position is a polygonal cross-sectional shape.3. The apparatus of wherein the first cross-sectional shape of the channel at the first position is ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT FROM COLORED RECYCLED PET

A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 5 millibars. The streams are recombined into a single polymer stream and formed into bulked continuous carpet filament. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:providing a polymer melt from an extruder to a chamber;separating the polymer melt from the extruder into at least eight streams within the chamber, each stream at least partially exposed to the chamber encompassing the at least eight streams such that a surface area of each of the at least eight streams is exposed to a chamber pressure within the chamber;{'b': '5', 'reducing a pressure within the chamber to reach the chamber pressure below about millibars corresponding to a desired moisture level or intrinsic viscosity associated with a single polymer stream comprising the at least eight streams of the polymer melt;'}recombining the at least eight streams into the single polymer stream; andforming the single polymer stream into bulked continuous carpet filament.2. The method of claim 1 , wherein separating the polymer melt from the extruder into at least eight streams within the chamber comprises separating the polymer melt from the extruder into at least eight streams within the chamber.3. The method of claim 2 , further comprising:providing a plurality of polymer flakes to the extruder; andadding one or more color concentrates to the plurality of polymer flakes or to the polymer stream.4. The method of claim 3 , further comprising:providing a color sensor configured to determine a color of the single polymer stream; andsubstantially automatically adjusting an amount of the one or more color concentrates added to the plurality of polymer flakes or the single polymer stream based at least ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an expanded surface area extruder while maintaining a pressure within the expanded surface area extruder below about 25 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) washing a plurality of flakes comprising recycled PET;(B) providing a PET crystallizer;(C) after the step of washing the plurality of flakes comprising recycled PET, passing at least a portion of the plurality of flakes comprising recycled PET through the PET crystallizer to at least partially dry a surface of the plurality of flakes comprising recycled PET; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and', 'a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;, '(D) providing an expanded surface area extruder, wherein the expanded surface area extruder defines an expanded surface area extruder inlet and an expanded surface area extruder outlet and comprises(E) providing a pressure regulation system configured to reduce a pressure within at least a portion of the expanded surface area extruder below about 25 ...

CLOSED-CELL EXPANDED ARTICLE BASED ON EXTRUDED POLYSTYRENE, METHOD AND PLANT TO OBTAIN SAID ARTICLE

An article based on extruded polystyrene, in the form of a slab, panel or flexible sheet to make heat insulations is made with re-granulated polystyrene from industrial working or production scrap, or from primary production plants. A plant and extruder and process for making the article. 1. (canceled)2. The method as in claim 16 , wherein said graphite of said re-granulated polystyrene granules comprises native graphite claim 16 , wherein the panel is between about 1 and 10% in weight graphite;the panel having a thickness of 2 to 15 cm (from page 10 of application), the panel in a non-aged state having heat conductivity less than 0.026 W/m*° K.3. The method as in claim 2 , further comprising further graphite added between 1% and 5% in weight as well as the native graphite already in said re-granulated polystyrene granules.4. The method as in claim 2 , further comprising carbon between 1% and 5% in weight apart from the native graphite present in said re-granulated polystyrene granules.5. The method as in claim 1 , further comprising one or more of the following components: a flame retardant additive claim 1 , a nucleant additive claim 1 , microspheres or pre-disperseds claim 1 , with an elastomeric polymer base or rubbers or flours deriving from vegetable and/or wood fibers claim 1 , which function as sound absorbents.6. Plant to produce a closed-cell expanded article based on extruded polystyrene extruded from industrial working or production scrap or from primary production plants and not from discards from post-consumption products and solid urban waste claim 1 , free of residues claim 1 , additional chemical compounds or other pollutants claim 1 , in the form of a slab claim 1 , panel or flexible sheet to make heat insulations claim 1 ,wherein the plant comprises an extrusion unit provided with extrusion means which have extrusion profiles conformed to extrude re-granulated polystyrene granules from industrial working or production scrap or from primary ...

System and method for on-demand colorization for extrusion-based additive construction

A color 3D printer and its method of use are disclosed. The color 3D printer uses a number of chambers to dye a filament to a given color. This colored filament is then extruded, pursuant to an associated 3D model of an object, to produce varying colored physical objects, on demand, with the use of a single filament and a single print head. Further, the color 3D printer features a waste management apparatus which provides a number of ways to dispose of waste fluid.

METHOD FOR MANUFACTURING AN ELECTRODE FOR AN ACCUMULATOR

The invention relates to a method of manufacturing a separating membrane in gel form, for an alkali metal ion battery, the method consisting of extruding a mix comprising: 1. Method of manufacturing an electrode in gel form , for an alkali metal ion battery , the method comprises a step of extruding a mix comprising:an active electrode material{'sub': n', '2n, 'a dinitrile compound with formula N≡C—R—C≡N, in which R is a hydrocarbon group CH, and n is equal to 1 or 2 and preferably equal to 2,'}a hot melt support polymer with a glass transition temperature Tg, soluble in the dinitrile compound.2. Method according to claim 1 , in which the extrusion step is carried out by means of an extruder comprising at least one heating zone claim 1 , at least one mixing zone and a pumping zone terminated by a die.3. Method according to claim 2 , in which the support polymer is added into the extruder at the heating zone claim 2 , where it is heated to a temperature T higher than the glass transition temperature Tg claim 2 , advantageously to a temperature T between Tg and Tg+50° C.4. Method according to claim 1 , in which the active electrode material is an active positive electrode material claim 1 , and advantageously the active positive electrode material comprises at least one element chosen among:{'sub': 4', '2', '4', '4', '2', '4', 'x', 'y', '1-2y', '2', '2', '3', '2', '2', '3', '4', '5', '12', '2-x', 'x', '2', '2', '3', '8', '1-x', 'x', '2', '4', '1-x', 'x', '2', '2', '2', '4', '3', '1-x', 'x', '2', '1-x', 'x', '2', '4', '3', '3', '4', '4', '2', '4', '2', '2', 'x', '2', 'x', '2', 'x', '2', 'x', '0.6', '0.4', '2', 'x', '0.5', '0.5', '2', 'x', '1/3', '1/3', '1/3', '2', 'x', '0.8', '0.15', '0.05', '2', 'x', '4', '2', '4', 'x', '2', '5', 'x', '4', 'x', '4', '4', '3', '2', '4', '3', '3', '2', '4', '2', '3', '2', '5', '1.5', '4', '0.5', '2', '2', '4', '3', '0.5', '0.5', '2', '2/3', '1/3', '2/3', '2', '0.45', '0.22', '0.11', '0.66', '2', '0.44', '2', '4', '3', '4', '2', '2', '7 ...

METHOD AND APPARATUS FOR FORMING TIRE COMPONENTS USING A COEXTRUDED STRIP

One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously. 1. A method for forming a coextruded strip of a first compound A and a second compound B , the method comprising the steps of:extruding a first compound A through a first extruder and a first gear pump and into a first passageway of a co-extrusion nozzle,extruding a second compound B through a second extruder and a second gear pump and into a second passageway of the co-extrusion nozzle,wherein the first and second passageways are joined together immediately upstream of the die outlet of the co-extrusion nozzle.2. The method of wherein the co-extrusion nozzle has an insert which divides the nozzle into a separate first and second passageway.3. The method of wherein the insert has a distal end for positioning adjacent a die outlet of the co-extrusion nozzle claim 2 , wherein the distal end has an elongated flat portion.4. The method of wherein the ratio of the volume of compound A to the volume of compound B is varied by changing the ratio of the speed of the first gear pump to the second gear pump.5. The method of wherein the ratio of the first gear pump to the second gear pump may be varied during operation of the system.6. The method of wherein the insert is removable.7. The method of wherein the insert ...

METHOD AND APPARATUS FOR CONTINUOUSLY PRODUCING A SEMI-FINISHED PRODUCT FOR THE PRODUCTION OF SELF-SEALING TYRES

An apparatus, and relative method, for producing a semi-finished product with a strip of sealing compound for building tyres, having at least one unsaturated styrene thermoplastic elastomer, one bonding resin and one cross-linking agent are described. 2. The apparatus as claimed in claim 1 , wherein the continuous mixer comprises a plurality of screws claim 1 , or blades claim 1 , housed in the respective inner chamber claim 1 , the continuous mixer being provided with mixing portions capable of conferring to the compound a high shear stress claim 1 , and with conveyor portions capable of conveying the compound being processed from one longitudinal end to the other of the inner chamber.3. The apparatus as claimed in claim 1 , wherein the continuous mixer is a co-rotating twin screw mixer.4. The apparatus as claimed in claim 2 , wherein the continuous mixer has a diameter of the inner chamber greater than or equal to 18 mm and/or less than or equal to 420 mm claim 2 , the continuous mixer being structured so that a rotation velocity of the screws is greater than or equal to 100 rpm and/or less than or equal to 1200 rpm claim 2 , and with a torque greater than or equal to 20% and/or less than or equal to 90%.5. The apparatus as claimed in claim 1 , wherein the respective inner chambers of the continuous mixer claim 1 , of the buffer device claim 1 , of the gear pump claim 1 , as well as the extrusion head claim 1 , lie on the same horizontal level.6. The apparatus as claimed in claim 1 , wherein the buffer device is a single-screw extruder comprising a single conveyor screw housed in the respective inner chamber claim 1 , wherein the conveyor screw is configured for conveying the sealing compound along the major extension direction of the respective inner chamber claim 1 , exerting thereon a substantially zero or very low mixing.7. The apparatus as claimed in claim 6 , wherein the buffer device has a diameter of the respective inner chamber greater than or equal to 40 ...

INTEGRATED SINGLE AND TWIN SCREW EXTRUDER

An extruder is disclosed, and more particularly, to an integrated single screw extruder and a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The integrated extruder includes a first barrel assembly and a second barrel assembly. The integrated extruder further includes a first screw having a first threaded portion and a second threaded portion. The first threaded portion is housed within the first barrel assembly and is configured to provide upstream material processing. The second threaded portion is housed within the second barrel assembly and is configured to provide downstream material processing. The integrated extruder further includes a second screw having a non-threaded shaft portion and a threaded portion. The threaded portion of the second screw is housed within the second barrel assembly and is configured to provide the downstream material processing with the second threaded portion of the first screw. 1. An integrated extruder , comprising:a single screw barrel assembly;a twin screw barrel assembly detachably affixed to the single screw barrel assembly;a first screw having a first threaded portion housed within the single screw barrel assembly and a second threaded portion housed within the twin screw barrel assembly; anda second screw having a shaft portion and a threaded portion, the threaded portion of the second screw being housed within the twin screw barrel assembly.2. The extruder of claim 1 , wherein the single screw barrel assembly is upstream from the twin screw barrel assembly.3. The extruder of claim 1 , wherein:the first threaded portion of the first screw provides upstream material processing including transit of molten material to the twin screw barrel assembly; andthe second threaded portion of the first screw and the threaded portion of the second screw provide downstream material processing.4. The extruder of claim 1 , wherein the twin screw barrel assembly is detachable from the single screw barrel ...

INTEGRATED SINGLE AND TWIN SCREW EXTRUDER

An extruder is disclosed, and more particularly, to an integrated single screw extruder and a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The integrated extruder includes a first barrel assembly and a second barrel assembly. The integrated extruder further includes a first screw having a first threaded portion and a second threaded portion. The first threaded portion is housed within the first barrel assembly and is configured to provide upstream material processing. The second threaded portion is housed within the second barrel assembly and is configured to provide downstream material processing. The integrated extruder further includes a second screw having a non-threaded shaft portion and a threaded portion. The threaded portion of the second screw is housed within the second barrel assembly and is configured to provide the downstream material processing with the second threaded portion of the first screw. 1. An integrated extruder , comprising:a single screw barrel assembly;a twin screw barrel assembly detachably affixed to the single screw barrel assembly;a first screw having a first threaded portion housed within the single screw barrel assembly and a second threaded portion housed within the twin screw barrel assembly; anda second screw having a shaft portion and a threaded portion, the threaded portion of the second screw being housed within the twin screw barrel assembly.2. The extruder of claim 1 , wherein the single screw barrel assembly is upstream from the twin screw barrel assembly.3. The extruder of claim 1 , wherein:the first threaded portion of the first screw provides upstream material processing including transit of molten material to the twin screw barrel assembly; andthe second threaded portion of the first screw and the threaded portion of the second screw provide downstream material processing.4. The extruder of claim 1 , wherein the twin screw barrel assembly is detachable from the single screw barrel ...

MELT PUMPS FOR PRODUCING SYNTHETIC GRANULES, EXTRUDED PROFILES OR MOLDED PARTS

Melt pumps for producing synthetic granules, extruded profiles or molded parts are disclosed. One disclosed example melt pump for building up pressure at a fluid medium is to be used for pressing the medium through a tool. The example melt pump includes a compressor that comprises an inlet and an outlet opening, and at least two worm conveyors disposed in a common housing, where worm flights provided on the worm conveyors are configured in such a manner that a force feed of the medium occurs and where the worm conveyors are drivable by their own drive. 1. A melt pump for building up pressure at a fluid medium , the melt pump for pressing the medium through a tool , comprising:a compressor that comprises an inlet and an outlet opening; andat least two worm conveyors disposed in a common housing, wherein worm flights provided on the worm conveyors are configured in such a manner that a force feed of the medium occurs and wherein the worm conveyors are drivable by their own drive.2. The melt pump as defined in claim 1 , wherein the worm conveyor is configured to have a ratio between the outward diameter (D) and the core diameter (D) is approximately between 1.6 and 2.4.3. The melt pump as defined in claim 1 , wherein the worm flight has a rectangular or trapeze-shaped thread profile.4. The melt pump as defined in claim 3 , wherein the worm flight has a profile angle approximately between 0° and 20°.5. The melt pump as defined in claim 1 , wherein the two worm conveyors are disposed vertically relative to one another.6. The melt pump as defined in claim 1 , further comprising a gear provided between the drive and the compressor claim 1 , wherein the worm conveyors are synchronously drivable.7. The melt pump as defined in claim 6 , wherein the drive and the gear have a rotation speed of the worm conveyors between approximately 30 rpm and 300 rpm.8. The melt pump as defined in claim 1 , wherein the worm flights and the worm conveyors are configured so that they correspond ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) providing a PET crystallizer;(B) passing a plurality of flakes of recycled PET through the PET crystallizer to at least partially dry the plurality of flakes of recycled PET;(C) at least partially melting the plurality of flakes into a polymer melt; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;', 'a first single-screw extruder section comprising a first single extruder screw for melting the plurality of flakes of recycled PET to form a polymer melt and feeding the polymer melt into the MRS section;', 'a second single-screw extruder section comprising a second single extruder screw for transporting the polymer melt away from the MRS section; and', 'a vacuum pump in communication with the MRS section that is adapted to ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an expanded surface area extruder while maintaining a pressure within the expanded surface area extruder below about 25 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) providing a PET crystallizer;(B) passing a plurality of flakes of recycled PET through the PET crystallizer to at least partially dry a surface of the plurality of flakes of recycled PET; a first extruder inlet and a first extruder outlet;', 'a first satellite screw extruder, the first satellite screw extruder comprising a first satellite screw that is mounted to rotate about a central axis of the first satellite screw;', 'a second satellite screw extruder, the second satellite screw extruder comprising a second satellite screw that is mounted to rotate about a central axis of the second satellite screw;', 'a third satellite screw extruder, the third satellite screw extruder comprising a third satellite screw that is mounted to rotate about a central axis of the third satellite screw; and', 'a fourth satellite screw extruder, the fourth satellite screw extruder comprising a fourth satellite screw that is mounted to rotate about a central axis of the fourth satellite screw, wherein the first satellite screw, the second satellite screw, the third satellite screw, and the fourth satellite screw are disposed at least partially within respective extruder barrels;', 'a satellite screw extruder support system ...

RUBBER EXTRUSION DEVICE

The present invention can save space. A rubber extrusion device () containing a rubber extruder () for kneading rubber and extruding same from a discharge port (), and a gear pump () connected to the discharge port () of the rubber extruder (). The rubber extruder () has a cylinder part (), which houses a rubber extrusion screw (), above the floor surface on which the rubber extruder () is placed. The gear pump () contains an electric motor (), a decelerator () linked to the electric motor (), and a gear pump main body () linked to the decelerator (). A pair of gears () which meshes with one another is installed in the gear pump main body (). The electric motor () and the decelerator () are disposed in a space below the gear pump main body () or the cylinder part (). Moreover, the output shaft () of the decelerator and one of the gears () are linked by means of a wrapping transmission means. 1. A rubber extrusion device comprisinga rubber extruder for kneading rubber and extruding the same from a discharging port, and a gear pump connected to the discharging port of the rubber extruder,the rubber extruder comprising a cylinder portion arranged above a floor on which the rubber extruder is placed, and a rubber extrusion screw installed in the cylinder portion,the gear pump comprising an electric motor, a reducer linked to the electric motor and having an output shaft, and a gear pump main body liked to the reducer,the gear pump main body comprising a chamber having an inlet port for receiving rubber extruded from the rubber extruder, and an outlet port for discharging rubber out from the gear pump, and a pair of gears meshing one another installed in the chamber for pumping rubber toward the outlet port,the gear pump main body fixed to the cylinder portion of the rubber extruder so that the inlet port is adjusted to the discharging port of the rubber extruder,the electric motor and the reducer being arranged in a space below the cylinder portion or the gear pump main ...

FOAMING DIE AND METHOD OF USE

Foam slabs and methods and apparatus, including foaming dies, for making and using foam slabs. 1. A foaming die for extruding a molten foamable composition , comprising , wherein the die orifices each exhibit an elongated shape with a long axis that is oriented at least substantially orthogonal to the lateral axis of the foaming die and that is at least substantially aligned with a height axis of the foaming die,', 'wherein the die orifices each exhibit an orifice height to orifice width aspect ratio of at least about 4:1., 'a working face comprising a plurality of laterally-aligned die orifices spaced along a lateral axis of the foaming die so as to define a die width and a die height,'}2. (canceled)3. The foaming die of wherein the die orifices exhibit an orifice height to orifice width aspect ratio of at least about 8:1.45-. (canceled)6. The foaming die of the die orifices are co-linearly spaced in a single row along the lateral axis of the foaming die and wherein all of the die orifices comprise at least essentially identical heights claim 1 , which heights define the die height of the foaming die.7. The foaming die of wherein the foaming die is provided at least in part by a plurality of shims that are layered together under pressure to form a shim stack claim 1 , each shim exhibiting a major plane that is at least substantially parallel to a thickness axis of the foaming die claim 1 , the shims combining to collectively define the die orifices of the foaming die and to define at least one die cavity that is fluidly connected to the die orifices.8. The foaming die of wherein the foaming die is fluidly coupled to an extrusion apparatus that comprises at least one extruder and that is configured to continuously supply a molten foamable flowstream to at least one die cavity of the foaming die.9. The foaming die of wherein the extrusion apparatus comprises first and second extruders fluidly connected to each other in tandem.10. The foaming die of wherein the ...

KNEADING APPARATUS AND METHOD OF PRODUCING KNEADED MATERIAL

A kneading apparatus () that makes it possible to easily obtain a kneaded material having a favorable property includes: a screw () for extruding polyethylene which has been fed through a feed opening (); a first heater () for heating the polyethylene which is extruded by the screw (); and a second heater () for preheating liquid paraffin which is to be added, through a side-feed opening (), to the polyethylene which is extruded by the screw (). 1. A kneading apparatus comprising:a screw for extruding a resin material which has been fed through a feed opening;a first heater for heating the resin material which is extruded by the screw; anda second heater for preheating a plasticizer which is to be fed through a side-feed opening provided on a downstream side of the feed opening, the plasticizer being added to the resin material which is concurrently heated by the first heater and extruded by the screw.2. The kneading apparatus according to claim 1 , further comprising:a resin retaining section for allowing the screw to push back the resin material,the side-feed opening being provided at a position corresponding to a position of the resin retaining section.3. The kneading apparatus according to claim 2 , wherein the side-feed opening is provided at a position that is closer to an upstream end of a cylinder including the screw than a downstream end of the cylinder.4. The kneading apparatus according to claim 2 , wherein the resin retaining section is provided on an upstream side of the side-feed opening.5. The kneading apparatus according to claim 1 , wherein the plasticizer is a solid plasticizer.6. The kneading apparatus according to claim 1 , wherein part of the plasticizer is added to the resin material which is to be fed through the feed opening.7. A method of producing a kneaded material claim 1 , comprising the steps of:extruding, by a screw, a resin material which has been fed through a feed opening;heating the resin material which is extruded by the screw; ...

Method and Device for Producing an Extrudate

In a method and a corresponding device for producing an extrudate, starting products are introduced into an extrusion container, heated, and homogeneously intermixed by dual asymmetric centrifugation of the extrusion container. The extrusion container is rotated about a primary rotation axis that extends outside the extrusion container, and is simultaneously rotated about a secondary rotation axis that extends through the extrusion container and is situated at an acute angle with respect to the primary rotation axis. Lastly, the intermixed starting products are jointly extruded from the extrusion container. The method and the corresponding device are particularly suitable for processing small and very small substance quantities. 1. A method for producing an extrudate , in which at least two starting products , at least one of which is a hot melting starting product , are introduced into an extrusion container , the starting products are heated and homogeneously intermixed , and the intermixed starting products are jointly extruded from the extrusion container , wherein for mixing the starting products , the extrusion container containing the starting products is dual asymmetrically centrifuged , the extrusion container being rotated about a primary rotation axis that extends outside the extrusion container , and being simultaneously rotated about a secondary rotation axis that extends through the extrusion container and is situated at an acute angle with respect to the primary rotation axis.2. The method according to claim 1 , wherein a container equipped with a lockable extrusion opening is used as the extrusion container claim 1 , the extrusion opening being kept closed during the dual asymmetric centrifugation claim 1 , and being opened prior to the extrusion.3. The method according to claim 1 , wherein the extrusion of the intermixed starting products present in the extrusion container takes place by a piston that is movably situated in the extrusion container.4 ...

Polyolefin Pipe

This invention relates to a polymeric pipe, and more particularly a polymeric pipe where the pipe comprises a crosslinked polyolefin formed from extruded polyolefin comprising a photoinitiator and a reactive extrusion species. More particularly, this invention relates to the manufacturing of plastic pipes and tubing by utilizing co-rotating twin screw extrusion combined with photo-induced crosslinking, of thermoplastic polymers such as polyethylene, to produce PEX pipes and tubing. 1. A polymeric pipe formed from:a polyolefin structural polymer;a photoinitiator in an amount of 0.02 to 3% by weight;a co-agent in an amount of 0.02 to 10%, by weight;an antioxidant in an amount of 0.1 to 1% by weight; anda scavenger in an amount of 0.01 to 2% by weight;wherein the photoinitiator is benzophenone, bezophenone substituted at the 4-position and benzophenone substituted at the 4 and 4′-position; and wherein the co-agent comprises at least one carbon-carbon double bond.2. The pipe of claim 1 , wherein the polyolefin structural polymer is one of polyethylene claim 1 , polypropylene claim 1 , polybutylene claim 1 , polyolefin copolymers such as poly(ethylene-co-maleic anhydride) claim 1 , and any copolymers thereof.5. The pipe of claim 1 , wherein the scavenger is one of (C-Calkyl)NCO claim 1 , OCN(C-Calkyl)NCO claim 1 , cycloalkyl isocyanates claim 1 , multi-functional isocyanates claim 1 , oligomeric isocyanates claim 1 , polymeric isocyanates claim 1 , a cycloaliphatic epoxide claim 1 , a cycloalkyl oxetane claim 1 , nanoparticles claim 1 , or a combination thereof.7. The pipe of claim 6 , wherein the polyolefin structural polymer is selected from polyethylene claim 6 , polypropylene claim 6 , polybutylene claim 6 , and any copolymers thereof.8. The pipe of claim 6 , wherein the scavenger is one of (C-Calkyl)NCO claim 6 , OCN(C-Calkyl)NCO claim 6 , cycloalkyl isocyanates claim 6 , multi-functional isocyanates claim 6 , oligomeric isocyanates claim 6 , polymeric isocyanates ...

PROCESS AND APPARATUS FOR BORDERING A CORRUGATED PLASTIC PANEL AND PANEL THUS OBTAINED

The present invention is related to a process for bordering a corrugated plastic panel and to a panel obtained through that process. In particular, the invention is related to a process for making a corrugated plastic panel comprising a bordering made in-line or out-line in order to close the openings outwards. The invention is also related to an apparatus for bordering according to that process. The panel is sealed and shock resistant thanks to the laying of thermoplastic elastomeric material. 1. Process for bordering a corrugated plastic panel , comprising the following steps in succession:a) providing a corrugated plastic panel having at least one perimetric open border;b) heating a thermoplastic elastomeric material till its fusion point;c) heating at least a portion of said border;d) extruding said fused thermoplastic elastomeric material;e) laying said fused material along all the perimetric border of said panel in order to fill at least partially the corrugations of the panel to seal them towards the exterior,wherein the laying step is carried out with an angle less than 45° with respect to the tangent to the point of the laying.2. Process according to claim 1 , wherein step b) consists in fusing a thermoplastic elastomeric (TPE) material.3. Process according to claim 2 , wherein said thermoplastic elastomeric material is selected among compound of polyolefin claim 2 , thermoplastic elastomers of styrene origin or of polyolefin origin.4. Process according to claim 3 , wherein said thermoplastic elastomeric material is an open-cell foamed material or closed-cell foamed material.5. Process according to claim 1 , wherein said step e) of laying of the extruded material is carried out with an inclination of 4°-45° with respect to the tangent to the laying point claim 1 , and the exit pressure of the material is comprised between 20 bar and 140 bar.6. Process according to claim 1 , comprising a step of blocking of the fluid material flow in correspondence of the ...

BLOCK CARRIER WITH INTEGRATED CONTINUOUS MOULDING DEVICE FOR THERMOSOFTENING PLASTICS

A block carrier with integrated strand die assembly for thermoplastic plastic material. The block carrier can have a block carrier housing, a melt pump assembly for delivering the thermoplastic material, and a start-up valve. The melt pump assembly and the start-up valve are integrated into the block carrier housing, providing a compact block carrier that is especially suited for use in environments with spatial constraints. 1. A block carrier with an integrated strand die assembly for thermoplastic plastic material , wherein the block carrier comprises a block carrier housing , and further wherein the block carrier housing comprises a melt pump assembly for delivering the thermoplastic material and a start-up valve.2. The block carrier of claim 1 , wherein the integrated strand die assembly comprises a perforated plate or a nozzle plate claim 1 , wherein the perforated plate or the nozzle plate each comprise a plurality of nozzle orifices through which the thermoplastic plastic material can be forced in order to form strands of thermoplastic material.3. The block carrier of claim 2 , wherein:a. the perforated plate is formed from a portion of the block carrier housing;b. the perforated plate is affixed to the block carrier housing;c. the nozzle plate is formed from a portion of the block carrier housing; ord. the nozzle plate is affixed to the block carrier housing.4. The block carrier of claim 1 , wherein the block carrier housing is assembled from a plurality of block carrier housing portions.5. The block carrier of claim 1 , wherein the block carrier housing is divided into two or more block carrier housing sections.6. The block carrier of claim 5 , wherein the two or more block carrier housing sections adjoin in a plane claim 5 , and further wherein the plane is substantially perpendicular to an axis of rotation of the melt pump assembly.7. The block carrier of claim 5 , wherein the two or more block carrier housing sections adjoin in a plane claim 5 , and ...

OVERTURNING DEVICE FOR OVERTURNING MOLTEN MATERIAL AND PURGING METHOD

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet () wherein between the melt inlet () and the melt outlet () at least one melt guidance means () is assembled for a rearrangement of the molten material () from the center () of the melt inlet () to the edge () of the melt outlet () and for rearrangement of the molten material () from the edge () of the melt inlet () into the center () of the melt outlet (). 1. An overturning device for overturning a molten material in a melt channel comprising a melt inlet and a melt outlet , wherein between the melt inlet and the melt outlet at least one melt guidance means is assembled for a rearrangement of the molten material from the center of the melt inlet to the edge of the melt outlet and for a rearrangement of the molten material from the edge of the melt inlet into the center of the melt outlet , wherein the at least one melt guidance means comprises a first guidance channel with a guidance opening in the center of the melt inlet and at least one guidance outlet at the edge of the melt outlet , and wherein the at least one melt guidance means comprises a second guidance channel with a guidance outlet at the center of the melt outlet and at least a guidance opening at the edge of the melt inlet , wherein the first guidance channel and the second guidance channel comprise within the course a deflection section with a setting angle towards the flow direction of the molten material in at least one melt guidance means of less than 90° , wherein the guidance opening of the second guidance channel is fluid communicating connected with a ring collector which is assembled mainly at the entire perimeter of the melt inlet.23-. (canceled)4. The overturning device according to claim 1 ,whereinthe ring collector comprises a collector width which is configured larger than the opening width of the guidance opening of the second ...

OVERTURNING DEVICE FOR OVERTURNING MOLTEN MATERIAL AND PURGING METHOD

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet (), wherein between the melt inlet () and the melt outlet () at least one melt guiding means () is assembled for a rearrangement of molten material () from the centre () of the melt inlet () to the edge () of the melt outlet () and for a rearrangement of molten material () from the edge () of the melt inlet () into the centre () of the melt outlet (). 1. An overturning device for overturning a molten material in a melt channel comprising: a melt inlet , a melt outlet , and at least one melt guide between the melt inlet and the melt outlet for a rearrangement of the molten material from a centre of the melt inlet to an edge of the melt outlet and for a rearrangement of the molten material from the edge of the melt inlet into the centre of the melt outlet.2. The overturning device according to claim 1 , wherein the at least one melt guide comprises a separation section with a first separation channel and a second separation channel claim 1 , wherein in front of the separation section a division section for separating the molten material to the separation channels and after the separation section a combination section for merging the molten material from the separation channels is arranged.3. The overturning device according to claim 2 ,wherein the combination section is configured for a central merging of edge sections of the molten material.4. The overturning device according to claim 2 ,wherein the separation channels are configured in form of a curve.5. The overturning device according to claim 2 ,wherein the separation channels comprise an equal or mainly equal length.6. The overturning device according to claim 2 ,wherein the flow direction of the molten material comprises a sharp angle in the combination section with the flow direction of the molten material in the division section.7. The overturning ...

OVERTURNING DEVICE FOR OVERTURNING MOLTEN MATERIAL IN A MELT CHANNEL AND PURGING METHOD

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet (), wherein between the melt inlet () and the melt outlet () at least a melt guiding means () is assembled for a rearrangement of the molten material () from the centre () of the melt inlet () to the edge () of the melt outlet () and for a rearrangement of the molten material () from the edge () of the melt inlet () into the centre () of the melt outlet (). 1. An overturning device for overturning a molten material in a melt channel comprising a melt inlet and a melt outlet , wherein between the melt inlet and the melt outlet at least a melt guiding means is assembled for a rearrangement of the molten material from the centre of the melt inlet to the edge of the melt outlet and for a rearrangement of the molten material from the edge of the melt inlet into the centre of the melt outlet , wherein the at least one melt guiding means comprises a separation section with a first separation channel and a second separation channel , wherein in front of the separation section a divisional section for dividing the molten material to the separation channels and after the separation section a combination section from merging the molten material from the separation channels is assembled , wherein the combination section is configured for a central merging of the edge sections of the molten material , wherein a recombination of separation streams of the molten material occurs by a complete or mainly complete rearrangement.2. The overturning device according to claim 1 , whereinthe at least one melt guiding means comprises a first guidance channel with a guidance opening in the centre of the melt inlet and at least one guidance outlet at the edge of the melt outlet.3. The overturning device according to claim 2 , whereinthe at least one melt guidance means comprises a second guidance channel with a guidance outlet in the ...

OVERTURNING DEVICE FOR OVERTURNING MOLTEN MATERIAL AND PURGING METHOD

The present invention relates to an overturning device () for overturning a molten material () in a melt channel () comprising a melt inlet () and a melt outlet (), wherein between the melt inlet () and the melt outlet () at least a melt guidance means () is assembled for a rearrangement of molten material () from the centre () of the melt inlet () at the edge () of the melt outlet () and for a rearrangement of molten material () from the edge () of the melt inlet () in the centre () of the melt outlet (). 1. An overturning device for overturning a molten material in a melt channel comprising a melt inlet and a melt outlet , wherein between the melt inlet and the melt outlet at least a melt guidance means is assembled for a rearrangement of molten material from the centre of the melt inlet to the edge of the melt outlet and for a rearrangement of molten material from the edge of the melt inlet into the centre of the melt outlet.2. The overturning device according to claim 1 ,whereinat least the at least one melt guidance means comprises a first guidance channel with a guidance opening in the centre of the melt inlet and at least one guidance outlet at the edge of the melt outlet or that the at least one melt guidance means comprises a second guidance channel with a guidance outlet in the centre of the melt outlet and at least a guidance opening at the edge of the melt inlet.3. The overturning device according to claim 1 ,whereinthe at least one melt guidance means comprises a separation section with a first separation channel and a second separation channel, at least wherein in front of the separation section a division section for dividing the molten material to the separation channels and after the separation section a combination section for merging the molten material from the separation channels is assembled or wherein the combination section is configured for a central merging of the edge sections of the molten material.4. A blow head for performing a blow ...

HAND-HELD THREE-DIMENSIONAL DRAWING DEVICE

A three-dimensional drawing device can include a housing configured for to be held in user's hand, shaped to allow manipulation of the housing like a pen, and configured to accept a strand of thermoplastic material. The drawing device has a nozzle assembly with an exit nozzle and a motor connected to a gear train that engages the strand such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object. The motor can be controlled using a variable speed control mechanism or first and second actuators, thereby controlling movement of the strand, for example, to advance or retract the strand relative to the nozzle assembly. 1. A three-dimensional (3D) drawing device comprising:a housing configured to fit in a user's hand and shaped to allow manipulation of the housing like a pen, the housing having a first end and a second end and being configured for introduction of a strand of feed stock through the second end and into an internal volume of the housing;a nozzle assembly at the first end of the housing and at least partially disposed within the housing and having an exit nozzle;a motor disposed within the housing;a gear train disposed within the housing and operatively coupled between the motor and the strand;a first actuator disposed on an outer surface of the housing between the first end and the second end; anda variable speed control mechanism operatively connected to the motor and the first actuator to adjust a rate of extrusion of the strand out of the exit nozzle.2. The 3D drawing device of claim 1 , further comprising a second actuator disposed on the outer surface of the housing between the first end and the second end.3. The 3D drawing device of claim 2 , further comprising a circuit assembly operatively connected to the motor claim 2 , the first actuator claim 2 , and the second actuator claim 2 , the circuit assembly configured to control the motor to rotate in a first direction at a first rate ...

Devices, Systems, and Processes for Processing Polymers

Embodiments of an invention disclosed herein relate to devices, processes, and systems for processing one or more polymers. 1. A device for processing one or more polymers comprising:a) a head member;b) an elongated body comprising a hollow section and having a longitudinal axis;c) a plurality of holes extending through at least one wall of the elongated body; andd) a secondary member; wherein the secondary member is in fluid communication with the elongated body.2. The device of claim 1 , wherein the secondary member comprises a substantially conical depression and the substantially conical depression tapers away from the hollow section of the elongated body.3. The device of claim 1 , wherein the secondary member and the elongated member are affixed together by at least one of fastening claim 1 , bolting claim 1 , crimping claim 1 , welding claim 1 , soldering claim 1 , brazing claim 1 , gluing claim 1 , cementing claim 1 , using an adhesive claim 1 , and any combination thereof.4. The device of claim 1 , wherein two or more of the head member claim 1 , the secondary member claim 1 , or the elongated body are fabricated into one piece.5. The device of claim 1 , wherein the head member has a substantially conical shape and tapers away from the secondary member.6. The device of claim 1 , wherein the head member comprises a tip and a tapered support member.7. The device of claim 6 , wherein the tip has a polygon or a polyhedron shape.8. The device of claim 7 , wherein the tip has a pentagon or hexagon shape.9. The device of claim 6 , wherein the tip has a raised surface.10. The device of claim 9 , wherein the raised surface is substantially conical in shape.11. The device of claim 1 , wherein the elongated body has a substantially cylindrical shape.12. The device of claim 1 , wherein at least some of the plurality of holes are substantially transverse to the longitudinal axis.13. The device of claim 1 , wherein at least some of the plurality of holes are situated at ...

Devices, Systems, and Processes for Processing Polymers

Embodiments of an invention disclosed herein relate to devices, processes, and systems for processing polymers. 1. A device for processing polymers comprising:a) an elongated body having a central axis;b) a plurality of inlet ducts parallel to the central axis;b) a plurality of outlet ducts parallel to the central axis; andc) a plurality of transition zones comprising one or more passages and one or more accelerations zones;wherein the one or more passages are not parallel to the central axis and provide fluid communication between at least one inlet duct and at least one outlet duct2. The device of claim 1 , wherein the plurality of inlet ducts and the plurality of outlet ducts are arranged around the central axis.3. The device of claim 1 , wherein the plurality of inlet ducts and the plurality of outlet ducts are concentrically arranged in a circle around the central axis.4. The device of claim 1 , wherein the plurality of inlet ducts and the plurality of outlet ducts alternate around the central axis.5. The device of claim 1 , wherein the one or more passages are substantially transverse to the central axis.6. The device of claim 1 , wherein the one or more passages are situated at an angle to the central axis.7. The device of claim 1 , wherein the one or more passages comprise a series of projections.8. The device of claim 7 , wherein the projections are substantially uniform in shape.9. The device of claim 7 , wherein the projections are quadrilateral in shape.10. The device of claim 9 , wherein the projections are rectangular in shape.11. The device of claim 7 , wherein the projections are placed equidistant from each other in the one or more passages.12. The device of claim 1 , wherein the device is made from claim 1 , at least partially claim 1 , iron claim 1 , steel claim 1 , stainless steel claim 1 , steel alloy claim 1 , or mixtures thereof.13. The device of claim 1 , wherein the device is made from claim 1 , at least partially claim 1 , a polished metal. ...

DEWATERING MACHINE AND PROCESS

A dewatering machine for reducing moisture of a polymer or an elastomer includes a generally solid barrel and a pair of screws disposed in the barrel. At least a portion of the screws are intermeshing, and drive means are coupled to the screws. At least one mechanical filter is connected to the barrel. The machine includes means that enable particles of the polymer or the elastomer to fuse, which reduces the amount of fines that escape from the machine. In addition, the machine reduces the moisture of the polymer from up to about 20 percent water by weight to less than about 0.5 percent water by weight, and the moisture of the elastomer from up to about 50 percent water by weight to less than about 3.0 percent water by weight. A method of dewatering for reducing the moisture of a polymer or an elastomer is also provided. 1. A dewatering machine for reducing moisture of at least one of a polymer and an elastomer , said machine comprising:a generally solid barrel;a pair of screws disposed in said barrel, at least a portion of said screws being intermeshing;drive means coupled to said screws;at least one mechanical filter connected to said barrel to remove moisture from said at least one of said polymer and said elastomer; andmeans for enabling said machine to fuse particles of said at least one of said polymer and said elastomer, whereby an amount of fines escaping the machine is reduced, and said moisture of the at least one polymer is reduced from up to about 20 percent water by weight to less than about 0.5 percent water by weight and of the at least one elastomer is reduced from up to about 50 percent water by weight to less than about 3.0 percent water by weight.2. The dewatering machine of claim 1 , wherein said means for enabling said machine to fuse particles of said at least one of said polymer and said elastomer includes:a feed section formed in said barrel for receiving an additive material;means for introducing steam into said barrel downstream of said ...

Devices, Systems, and Processes for Processing Polymers

Embodiments of an invention disclosed herein relate to devices, processes, and systems for processing one or more polymers. 1. A device for processing one or more polymers comprising:a) a head member;b) an elongated body comprising a hollow section and having a longitudinal axis;c) a plurality of holes extending through at least one wall of the elongated body; andd) optionally, at least one shoulder parallel to the longitudinal axis.2. The device of claim 1 , wherein the head member has a substantially conical shape and tapers away from the at least one shoulder when present.3. The device of claim 1 , wherein the head member comprises a tip and a tapered support member.4. The device of claim 3 , wherein the tip has a polygon or a polyhedron shape.5. The device of claim 4 , wherein the tip has a pentagon or hexagon shape.6. The device of claim 3 , wherein the tip has a raised surface.7. The device of claim 6 , wherein the raised surface is substantially conical in shape.8. The device of claim 1 , wherein the elongated body has a substantially cylindrical shape.9. The device of claim 1 , wherein at least some of the plurality of holes are substantially transverse to the longitudinal axis.10. The device of claim 1 , wherein at least some of the plurality of holes are situated at an angle to the longitudinal axis.11. The device of claim 1 , wherein the plurality of holes are situated equidistant from each other along the outer surface of the elongated body.12. The device of claim 1 , wherein the plurality of holes cover 50% or greater of the outer surface area of the elongated body.13. The device of claim 1 , wherein the plurality of holes cover 75% or greater of the outer surface area of the elongated body.14. The device of claim 1 , wherein the plurality of holes comprises claim 1 , respectively to each hole claim 1 , an inner aperture and outer aperture and the diameter of the outer aperture is greater than the diameter of the inner aperture.15. A polymer processing ...

DEVICE FOR PRODUCING AND SMOOTHING PLASTIC FILMS OR PLASTIC PLATES

The smoothing device for plastic films comprises plastic-melt-producing means (), an adjustable slit die () and a roller smoothing unit () having cooled smoothing rollers (), which form an adjustable smoothing gap () between each other. Optionally, further rollers () are arranged downstream. A thickness gauge () measures the thickness of the plastic-film web (). A controller () for controlling the thickness of the plastic-film web () may set a setpoint thickness (SD) of the plastic-film web () and the volumetric flow rate (SS) of the plastic melt or the line speed (LS). The controller () captures the current torques and rotational speeds of the rollers () and the current thickness (FD, FD-FDn) of the plastic-film web (). 1. A device for producing and smoothing plastic films or plastic sheets , respectively , comprisingplastic-melt-producing means for producing a plastic melt from a thermoplastic material,a slit die having two opposing die lips that are adjustable in the distance to each other, which form a die gap between each other, wherein the slit die may be supplied with plastic melt from the plastic-melt-producing means,a roller smoothing unit having two smoothing rollers, of which at least one is cooled, which form an adjustable smoothing gap between each other for receiving the flow of the plastic melt discharged by the slit die, wherein the smoothing rollers cool the flow of the plastic melt down to the solidification thereof as a plastic-film or plastic-sheet web, thereby smoothing the surfaces;at least one thickness gauge for measuring the thickness of the plastic-film or plastic-sheet web, which is arranged downstream of the smoothing rollers;and for setting the setpoint thickness of the plastic-film or plastic-sheet web; and', 'for setting either the volumetric flow rate of the plastic melt discharged by the plastic-melt-producing means or for setting the line speed,, 'a controller for controlling the thickness of the plastic-film or plastic-sheet web, ...

GRAIN DEHYDRATING COMPRESSOR FOR WET GRAIN SYSTEM AND METHOD

A device according to various embodiments for preparing wet grain can include at least a first screw configured to receive wet grain. A second screw receives the wet grain from the first screw. At least one of a compressing element and a dehydrating element is included with at least one of the first screw and the second screw to cause a physical property change to the wet grain. 1. A substantially dry product produced by the process comprising:removing moisture from a raw material having a first moisture content to produce a substantially dry final product having a final moisture content;removing, via at least one vent, approximately up to 95% of moisture from the raw material; andentrapping approximately 5% of the moisture within the raw material to improve lubricity of the raw material.2. The product produced by the process of claim 1 , further comprising removing moisture from the raw material by selective compression and release of the raw material.3. The product produced by the process according to claim 2 , wherein the substantially dry final product comprises an animal feed product having no binders or fillers.4. The product produced by the process according to claim 2 , wherein the raw material having the first moisture content in the range of about 13% to about 90% by weight comprises a granular material.5. The product produced by the process according to claim 2 , wherein the raw material having the first moisture content in the range of about 13% to about 90% by weight comprises wet distiller grain.6. The product produced by the process according to claim 2 , wherein the substantially dry final product having the final moisture content in a range of about 0% to about 12% by weight comprises a dried distiller grain.7. The product produced by the process of claim 2 , wherein the substantially dry final product comprises a food product.8. The product produced by the process of claim 2 , wherein the substantially dry final product comprises a plastic product. ...

EXTRUDER INCLUDING AN IMPROVED HOMOGENISING MEMBER AND METHOD FOR EXTRUDING A VISCOUS MATERIAL

An Extruder for shaping a viscous material such as a blend of rubber is disclosed herein. The extruder includes a screw rotationally driven about an axis (XX′) in a barrel and bearing one or more helical flights extending radially outwards from a central shaft of the screw, the extruder comprising a material homogenization zone (H) through which a screw portion comprising interrupted flight elements forming empty annular spaces extends axially, and a barrel portion delimiting the said homogenization zone bearing flight elements extending radially inwards into the said empty annular spaces. According to the disclosure, the barrel portion delimiting the homogenization zone is itself rotationally driven about the axis XX′ to form a rotary barrel. 1. An extruder for shaping a viscous material such as a blend of rubber , comprising:a screw rotationally driven about an axis (XX′) in a barrel and bearing one or more helical flights extending radially outwards from a central shaft of the screw, the extruder includes a material homogenization zone (H) through which a screw portion comprising interrupted flight elements forming empty annular spaces that extends axially, anda barrel portion delimiting the said homogenization zone bearing flight elements extending radially inwards into the said empty annular spaces beyond the vertices of the flight elements of the screw,wherein the barrel portion delimiting the homogenization zone is itself rotationally driven about the axis XX′ to form a rotary barrel.2. The extruder according to claim 1 , wherein the homogenization zone of the screw comprises at least one ring mounted on the screw comprising the said flight elements which are imbricated between the said flight elements borne by a barrel-forming ring.3. The extruder according to claim 1 , wherein the diameter of the screw in the zone of the extruder that lies upstream of the homogenization zone is less than the diameter of the screw in the homogenization zone.4. The extruder ...

BEAD APEX RUBBER-FORMING METHOD, AND BEAD APEX RUBBER-FORMING DEVICE

The present invention forms bead apex rubber with good precision on the outer circumferential surface of the bead core. A molding process, in which unvulcanized rubber is made to flow into a bead apex molding chamber that is surrounded by surfaces that include the outer circumferential surface of a circular bead core and the bead apex rubber is formed directly on the outer circumferential surface of the bead core that is rotating around the core axis, is provided. The molding process comprises: a tip forming step that forms the leading end of the bead apex rubber; a middle section forming step that sequentially forms the bead apex rubber to be continuous with the leading end; and a joining step to join the back end and the leading end of the bead apex rubber by inflowing the unvulcanized rubber therebetween. 1. A bead apex rubber forming device to form the bead apex rubber continuously in a full circle on an outer circumferential surface of an annular bead core having a core axis , wherein a bead core holding means for holding the bead core rotatably around the core axis,', 'a rubber extruder having a gear pump for extruding unvulcanized rubber from a rubber discharge port depending on an on-off action of the gear pump, and', 'a molding head fixed to the rubber extruder,, 'the bead apex rubber forming device comprises'}the molding head comprises a bead apex molding chamber being surrounded by the outer circumferential surface of the bead core, a first inner wall surface of the molding head on one side of the core axis direction, and a second inner wall surface of the molding head on the other side of the core axis direction,the first inner wall surface is provided with a rubber inflow port connected with the rubber discharge port via a rubber flow channel to feed the unvulcanized rubber from the rubber extruder to the bead apex molding chamber,the bead apex molding chamber extends in the circumferential direction of the circumferential surface, and is openable and ...

METHOD AND DEVICE FOR POLYMER PULVERISATION EXTRUSION

The present invention generally relates to polymeric materials pulverisation. More particularly, the present invention relates to an extrusion method and device for producing particulate deformed polymers having a more useful resultant devulcanised surface area for downstream industrial usage. Specifically, the present invention relates to a pulverisation extrusion method and device that utilises the herein described specific combination of variable feed screw torque and variable main screw speed together with coupled temperature control of the extruder barrel and extruder main screw.

DEVICE AND METHOD FOR FORMING SHEET-LIKE RUBBER

The sheet-like rubber forming device has a die body which has an opening having a predetermined cross sectional shape, and a variable die lip which is arranged in a front side of the die body and can change the height of the opening. The variable die lip is constructed by a first movable body and a second movable body. The die lip control unit controls the variable die lip so as to drive the first movable body in an opening direction from a state in which the first movable body and the second movable body are closed when the forming is started, hold the positions of the first movable body and the second movable body after reaching a predetermined height, and drive the second movable body in a closing direction when the forming is finished. 1. A sheet-like rubber forming device for forming a tire constituting member having a predetermined width and height , by extruding a sheet-like rubber from a die head of an extruder , the sheet-like rubber forming device comprising:a die body which constructs the die head and has an opening having a predetermined cross sectional shape;a variable die lip which is arranged in a front side of the die body and can change the height of the opening; anda die lip control unit which controls motion of the variable die lip,wherein the variable die lip is constructed by a first movable body which is positioned in one side in a height direction, and a second movable body which is positioned in the other side in the height direction, andwherein the die lip control unit controls the variable die lip so as to drive the first movable body in an opening direction little by little from a state in which the first movable body and the second movable body are closed when the forming is started, hold the positions of the first movable body and the second movable body after reaching a predetermined height, and drive the second movable body in a closing direction little by little when the forming is finished.2. The sheet-like rubber forming device ...

Foamed polyester extrusion equipment which can be used in plants for producing sheets, boards or tubes of foamed polyester

Foamed polyester extrusion equipment has two co-rotating screws defining with an internal walls of an insulated frame, first degassing zone between a feeding zone at a feeding inlet for polyester and a first tight zone, a second degassing zone downstream of the first degassing zone, foaming agent inlet zone downstream of the second degassing zone and a pumping end zone for melted material downstream of the foaming agent zone. The first degassing zone carries out forced atmospheric degassing at lower temperature and has a first vent stack adjacent the first tight zone. The second degassing zone carries out vacuum degassing at a temperature equal to or greater than the melting point of the treated polyester material. The first degassing zone has, upstream of the first vent stack, a nozzle for inlet of preheated nitrogen gas to entrain vapours.

PROCESS, APPARATUS AND SYSTEM FOR CREATING EXTRUDED MATERIAL HAVING COLOR EFFECTS AND PRODUCTS MADE WITH EXTRUDED MATERIAL CREATED WITH SAME

A process and associated system for creating color effects using extrudable material, such as plastic and metal for example, are presented. Flows of first and second viscous materials of respective colors are provided and then combined in a predetermined pattern to form a stream of combined viscous material. In a first aspect, the flow rate of the first viscous material is caused to vary over time in order to vary an amount of the first viscous material in the stream. In a second aspect, which may be used alone or in combination with the first aspect, the first and second viscous materials have distinct viscosities to reduce an amount of color blending between the first color and the second color in the stream of combined viscous material. A static mixer may then be used to apply a predetermined dividing, overturning and combining motion to the stream of combined viscous material to partially mix the first viscous material and the second viscous material, such that upon exiting the static mixer, the first material of the first color and the second material of the second color form a color pattern in the stream of combined viscous material. Sheets of extrudable material may be created using such process and used in the manufacturing of many different products including for example kayaks and stand-up paddle boards. 167.-. (canceled)68. A sheet of extruded material having color effects , said sheet of extruded material being made with materials comprised of:a first viscous material of a first color;a second viscous material of a second color different from the first color,wherein the first viscous material has a first viscosity and the second viscous material has a second viscosity, the first viscosity being distinct from the second viscosity to reduce an amount of color blending between the first color and the second color in the sheet.69. A sheet of extruded material as defined in claim 68 , wherein said first viscosity is lower than said second viscosity.70. A ...

Systems and methods for manufacturing bulked continuous filament

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

SIDE FEEDER WITH REARWARDS VENTILATION

Device for lateral flow charging of an extruder in which material is fed to at least one conveyor screw disposed in an extruder housing. The material contains gaseous concomitant materials, wherein a degassing housing for receiving an air flow is disposed on the extruder housing, which air flow acts in the extruder housing and which is directed contrary to the conveying direction of the conveyor screw. 113-. (canceled)14. A device for lateral flow charging of an extruder in which material is fed to at least one conveyor screw disposed in an extruder housing , wherein the material comprises gaseous concomitant materials , the device comprising a degassing housing for receiving an air flow disposed on the extruder housing , which air flow acts in the extruder housing and which is directed contrary to a conveying direction of the conveyor screw.15. The device according to claim 14 , comprising a vacuum in the extruder housing and/or in the degassing housing as a result of the alignment of the air flow directed contrary to the conveying direction of the conveyor screw.16. The device according to claim 14 , comprising a negative pressure in the extruder housing and/or in the degassing housing as a result of the alignment of the air flow directed contrary to the conveying direction of the conveyor screw.17. The device according to claim 14 , further comprising a feed opening configured to feed the material.18. The device according to claim 14 , wherein the degassing housing comprises an auxiliary extruder configured to return the material to the conveyor screw.19. The device according to claim 18 , wherein the degassing housing comprises an exhaust air device delimited with respect to the degassing housing by a filter.20. The device according to claim 18 , wherein the conveyor screw has a greater pitch than a screw of the auxiliary extruder.21. The device according to claim 18 , wherein the conveyor screw and/or the auxiliary extruder each has at least one shear edge.22. ...

HAND-HELD THREE-DIMENSIONAL DRAWING DEVICE

A three-dimensional drawing device can include a housing configured for to be held in user's hand, shaped to allow manipulation of the housing like a pen, and configured to accept a strand of thermoplastic material. The drawing device has a nozzle assembly with an exit nozzle and a motor connected to a gear train that engages the strand such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object. The motor can be controlled using a variable speed control mechanism or first and second actuators, thereby controlling movement of the strand, for example, to advance or retract the strand relative to the nozzle assembly. 1. An apparatus comprising: ["an elongate housing having an internal volume and a port that permits insertion of a strand of material into the internal volume of the pen, the elongate housing being configured to fit in a user's hand and shaped to allow manipulation of the pen without a handle substantially perpendicular to the housing;", 'a rotatable gear disposed within the internal volume of the housing of the pen, the gear being configured to contact the strand when engaged with the gear within the housing of the pen;', 'a motor, disposed within the internal volume of the housing of the pen, operatively coupled with the gear and configured to rotate the gear and drive motion of the strand;', 'an actuator, positioned along the housing of the pen, to actuate the motor to control a movement of the strand; and', 'a nozzle assembly disposed at a distal end of the pen and comprising an extruder and an exit nozzle, the extruder having a heating element configured to melt the strand, the extruder being disposed between the gear and the exit nozzle such that the strand can be driven into and melted by the extruder to cause the strand to be extruded out of the exit nozzle in a solid form that retains its shape against gravity in free space to draw a 3D object., 'a three-dimensional (3D) drawing ...

SYSTEM FOR PROCESSING OF LOW VISCOSITY POLYMERS

Disclosed herein is a system comprising a first pump; a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it; a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 10centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 10centipoise. 1. A system comprising:a first pump;a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it;a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and{'sup': 5', '5, 'a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 10centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 10centipoise.'}2. The system of claim 1 , where the first pump discharges the polymer at a pressure of less than 15 kilograms per square centimeter when the polymer has a melt viscosity greater than 10centipoise.3. The system of ...

APPARATUS AND METHOD FOR EXTRUDING RUBBER MIXTURES

An extrusion apparatus intended for the manufacture of a coextruded profiled element P for tyres, produced from rubber compounds of various compositions, comprises a profiling device () arranged at the outlet of at least two flow channels () for rubbery compounds of different composition. The said channels receive the compounds from positive-displacement contrarotating twin-screw extruders (), the screw flights interpenetrating and having conjugated profiles. 111-. (canceled)12. An extrusion apparatus for the manufacture of a coextruded profiled element P for tires , produced from rubber compounds of various compositions , comprising:a profiling device arranged at the outlet of at least two flow channels for rubbery compounds of different compositions; andpositive-displacement contrarotating twin-screw extruders, the screw flights of which are interpenetrating and have conjugated profiles, arranged such that the at least two flow channels receive the rubbery compounds of different compositions from the twin-screw extruders.13. The extrusion apparatus according to claim 12 , wherein each twin-screw extruder is fed by a secondary single-screw extruder.14. The extrusion apparatus according to claim 13 , wherein each twin-screw extruder and a corresponding secondary single-screw extruder are arranged in a common housing.15. The extrusion apparatus according to claim 14 , wherein the corresponding secondary single-screw extruder comprises an outlet end which communicates with a central inlet orifice into an internal chamber of each twin-screw extruder.16. The extrusion apparatus according to claim 13 , wherein each twin-screw extruder and each secondary single-screw extruder has its own drive means.17. The extrusion apparatus according to claim 13 , wherein an axis of rotation of the screw of each secondary single-screw extruder is transverse to an axis of rotation of the screws of each twin-screw extruder.18. The extrusion apparatus according to further comprising:a ...

2-STAGE EXTRUSION APPARATUS AND METHOD OF EXTRUSION

A consolidation system configured to consolidate a bulk molding compound, the apparatus comprises a barrel, a low compression first stage within the barrel, a high compression second stage within the barrel coupled with the low compression first stage, a die breaker coupled to the high compression second stage, and an extrusion die coupled to the die breaker. The low compression first stage includes a low compression screw for mixing and compressing a bulk molding compound comprising a resin and fillers. The high compression second stage includes a high compression screw for compressing the bulk molding compound into a compressed material. The die breaker comprises at least one of a plurality of holes or a plurality of slots. 1. A consolidation system configured to consolidate a bulk molding compound , the consolidation system comprising:a barrel;a low compression first stage within the barrel, the low compression first stage including a low compression screw for mixing and compressing a bulk molding compound comprising a resin and fillers;a high compression second stage within the barrel coupled with the low compression first stage, the high compression second stage including a high compression screw for compressing the bulk molding compound into a compressed material;a die breaker coupled to the high compression second stage, the die breaker comprises at least one of a plurality of holes or a plurality of slots; andan extrusion die coupled to the die breaker.2. The consolidation system of claim 1 , wherein the low compression first stage and the high compression second stage are configured to produce a compression ratio between 1.5 and 3.3. The consolidation system of claim 1 , wherein the die breaker has a thickness between 0.5 inches and 1 inch.4. The consolidation system of claim 3 , wherein the extrusion die is thicker than the die breaker.57-. (canceled)8. The consolidation system of claim 1 , wherein the low compression screw and the high compression screw ...

GRAIN DEHYDRATING COMPRESSOR FOR WET GRAIN SYSTEM AND METHOD

A device according to various embodiments for preparing wet grain can include at least a first screw configured to receive wet grain. A second screw receives the wet grain from the first screw. At least one of a compressing element and a dehydrating element is included with at least one of the first screw and the second screw to cause a physical property change to the wet grain. 1. A substantially dry product produced by the process comprising:removing moisture from a raw material having a first moisture content to produce a substantially dry final product having a final moisture content;removing, via at least one vent, approximately up to 95% of moisture from the raw material; andentrapping approximately 5% of the moisture within the raw material to improve lubricity of the raw material.2. The product produced by the process of claim 1 , further comprising removing moisture from the raw material by selective compression and release of the raw material.3. The product produced by the process according to claim 2 , wherein the substantially dry final product comprises an animal feed product having no binders or fillers.4. The product produced by the process according to claim 2 , wherein the raw material having the first moisture content in the range of about 13% to about 90% by weight comprises a granular material.5. The product produced by the process according to claim 2 , wherein the raw material having the first moisture content in the range of about 13% to about 90% by weight comprises wet distiller grain.6. The product produced by the process according to claim 2 , wherein the substantially dry final product having the final moisture content in a range of about 0% to about 12% by weight comprises a dried distiller grain.7. The product produced by the process of claim 2 , wherein the substantially dry final product comprises a food product.8. The product produced by the process of claim 2 , wherein the substantially dry final product comprises a plastic product. ...

PROCESS FOR ENHANCING THE MELT STRENGTH OF PROPYLENE-BASED POLYMER COMPOSITIONS

Disclosed is a process for preparation of a propylene-based polymer composition involving the steps of: 1. Process for preparation of a propylene-based polymer composition comprising the steps of:(a) mixing a propylene-based polymer and a peroxydicarbonate in a mixing device, wherein the mixing takes place at a temperature of ≤30° C., wherein the peroxydicarbonate is introduced into the mixing process in a dry form, thereby obtaining a mixed composition;(b) keeping the mixed composition obtained in (a) at a temperature of ≤30° C.;(c) feeding the mixed composition obtained in (a) into a melt extruder via a feed inlet;(d) homogenizing the mixed composition fed into the melt extruder at a temperature where the propylene-based polymer is in solid state in a first section of the melt extruder during an average residence time of ≥6.0 and ≤30.0 seconds;(e) further homogenizing the mixed composition fed into the melt extruder in a subsequent second section of the melt extruder at a temperature at which the propylene-based polymer is in the molten state, thereby obtaining a homogenized material; and(f) extruding the homogenized material from a die outlet of the melt extruder followed by cooling and solidification;wherein the steps (a) through (f) are conducted in that order.2. Process according to wherein the propylene-based polymer is fed to the mixing device in the form of solid particles having an average particle size of ≤3000 μm as determined as Daccording to ISO 9276-2 (2014).3. Process according to wherein a ratio of an average particle size of the propylene-based polymer and an average particle size of the peroxydicarbonate that are introduced in step (a) is ≥0.5 and ≤1.5 claim 1 , wherein the average particle size of the propylene polymer and the average particle size of the peroxydicarbonate are determined as Daccording to ISO 9276-2 (2014).4. Process according to wherein step (a) comprises ≥0.05 wt % and ≤3.00 wt % of the peroxydicarbonate claim 1 , with regard to ...

Compatibilized polymeric compositions comprising polyolefin-polylactic acid copolymers and methods of making the same

Polymeric compositions and processes of forming the same are described herein. The processes generally include contacting a polyolefin with a polylactic acid in the presence of at least 800 ppm of a radical initiator under extrusion conditions to produce a polyolefin-polylactic acid copolymer.

Polyolefin pipe

This invention relates to a polymeric pipe, and more particularly a polymeric pipe where the pipe comprises a crosslinked polyolefin formed from extruded polyolefin comprising a photoinitiator and a reactive extrusion species. More particularly, this invention relates to the manufacturing of plastic pipes and tubing by utilizing co-rotating twin screw extrusion combined with photo-induced crosslinking, of thermoplastic polymers such as polyethylene, to produce PEX pipes and tubing.

System and method for polymer extrusion

Techniques are provided for polymer extrusion. A polyolefin extrusion system may include an extrusion gear pump configured to receive a narrow molecular weight distribution polyolefin from a polyolefin manufacturing system. The polyolefin extrusion system may also include a motor of the extrusion gear pump configured to drive the extrusion gear pump, a pressure sensor configured to generate a pressure signal indicative of a suction pressure into the extrusion gear pump, an automation controller configured to generate an output signal based on the pressure signal, and a variable speed drive configured to control operation of the motor.

Method and apparatus for making polyolefin pellets

This disclosure relates to pelletized polyolefin resins. More particularly, the disclosure relates to a process that allows for adjustment of certain desired properties of either the resin, such as modification of the bulk density of resin pellets, or adjustment of properties for the articles made from the resin, such as improved odor and taste properties, when used as a bottle cap, for example, or tailoring of the resin volatile or wax level, when used to make pipe, for example. This disclosure also relates to a system for making pelletized resins, such as mono-modal or multi-modal olefin polymer resins.

Dynamically vulcanized thermoplastic elastomer film

A dynamically vulcanized alloy containing an elastomer and a thermoplastic resin is prepared by a process wherein supercritical fluid is injected into the thermoplastic elastomeric material as the material is mixed in an extruder. The material is mixed under conditions such that the thermoplastic elastomeric material is dynamically vulcanized wherein the elastomer forms a discontinuous dispersed of small particles in a continuous phase of the thermoplastic resin. The DVA material may then be directly formed into film or sheets by the use of at least one set of rolls located adjacent to the extruder outlet.

Extruder screw

Embodiments of the present disclosure include an extruder screw, ( 200 - 1, 200 - 2 ) an extruder screw system ( 254 ) having a least one of a first extruder screw ( 200 - 1, 200 - 2 ) and at least one of a second extruder screw, ( 200 - 1, 200 - 2 ) an extruder system ( 250 ) having the extruder screw system ( 254 ), a continuous process for the production of an aqueous dispersion using the extruder system, and an aqueous dispersion formed by the process. For the various embodiments, the extruder screw ( 200 - 1, 200 - 2 ) includes a mixing and melting segment ( 266 ); a high internal phase emulsion segment ( 268 ) that includes a kneading block having a plurality of disks with surfaces that define a plurality of channels; a distributing and pumping segment ( 270 ); a first seal segment ( 272 ) between the mixing and melting segment ( 266 ) and the high internal phase emulsion segment ( 268 ); a second seal segment ( 274 ) between the high internal phase emulsion segment ( 268 ) and the distributing and pumping segment ( 270 ); and a third seal segment ( 276 ) at an end distal the distributing and pumping segment ( 270 ) relative the high internal phase emulsion segment ( 268 ).

Process for forming an insulated container having artwork

A container is formed to include and interior region and a mouth opening into the interior region. The container includes a floor, a side wall coupled to the floor to define the interior region between the floor and the side wall, and artwork on the side wall.

Process for forming an insulated container having artwork

A container is formed to include and interior region and a mouth opening into the interior region. The container includes a floor, a side wall coupled to the floor to define the interior region between the floor and the side wall, and artwork on the side wall.

Process for forming an insulated container having artwork

A container is formed to include and interior region and a mouth opening into the interior region. The container includes a floor, a side wall coupled to the floor to define the interior region between the floor and the side wall, and artwork on the side wall.

Process for forming an insulated container having artwork

A container is formed to include and interior region and a mouth opening into the interior region. The container includes a floor, a side wall coupled to the floor to define the interior region between the floor and the side wall, and artwork on the side wall.

Process for forming an insulated container having artwork

A container is formed to include and interior region and a mouth opening into the interior region. The container includes a floor, a side wall coupled to the floor to define the interior region between the floor and the side wall, and artwork on the side wall.

Process for preparing polyolefin blends in a device for continuously physically melting and blending the blends

A process for preparing a polyolefin product can include providing a first high molecular weight (HMW) polyolefin resin having an HLMI of between 0.01 and 5 g/10 min, and separately providing a second low molecular weight (LMW) polyolefin resin having an MI 2 of between 1 and 150 g/10 min. A device can be used to continuously physically melt and blend the first HMW polyolefin resin and the second LMW polyolefin resin to produce the polyolefin product. The device can include at least two feeding zones spatially separated and operably connected to each other. At least a art of the first HMW polyolefin resin is introduced in a first feeding zone, and at least a part of the second LMW polyolefin is introduced in a second feeding zone different from the first zone.

가교결합성 폴리아릴렌 설파이드 조성물

다양한 상이한 조건 하에 우수한 강도 및 가요성을 나타낼 수 있는 중합체 조성물이 제공된다. 특히, 상기 중합체 조성물은 폴리아릴렌 설파이드, 에폭시-작용성 중합체성 충격 개질제, 및 금속 카복실레이트 포함 가교결합 시스템을 함유한다. 특정 경우, 상기 가교결합 시스템은 또한, 2 개 이상의 반응성 작용기를 함유하는 정도로 "다작용성"인 가교결합제를 사용할 수 있다.

Cooling and pelletizing process for semi-crystalline polymers

Methods and systems for pelletizing low molecular weight semi-crystalline polymers are provided herein. Polymer compositions comprising the semi-crystalline polymer and a solvent are provided to a devolatilizing device, where the solvent is at least partially evaporated under vacuum conditions, resulting in removal of heat from the polymer by evaporative cooling and crystallization of the polymer. Once the polymer has reached the desired temperature, the polymer exits the devolatilizer and is pelletized. Semi-crystalline polymers that may be used in the present invention include propylene-based copolymers, such as propylene-ethylene and propylene-hexene copolymers having a heat of fusion, Hf, from about 5 to about 75 J/g and a weight average molecular weight, Mw, from about 10,000 to about 200,000 g/mol.

Kneading/extruding equipment with feedforward control of latter stage pump

The present invention provides kneading/extruding equipment capable of stable operation by keeping the pressure of kneaded material before a first-stage gear pump in steady operation (molding) and preventing fluctuation of the pressure of kneaded material before the first-stage gear pump constant from largely affecting the pressure of kneaded material before a latter-stage gear pump at start-up or upon change of production rate, and thus capable of responding to an increase in production rate while securing a high-quality molded product, and an operation control method thereof. The kneading/extruding equipment comprises: a rotational speed feedback control unit for a first gear pump, which feedback-controls the rotational speed of the first gear pump, and a rotational speed feedforward control unit for a second gear pump, which feedforward-controls the rotational speed of the second gear pump.

Dynamic mixing pump

Apparatus ( 1 ) for admixing additives to a medium to be pumped, comprising at least one gear pump ( 2 ) for pumping a medium to be pumped, said gear pump ( 2 ) comprising at least one shaft ( 3 ) having a first driving torque; at least one injector ( 5 ) for introducing an additive into a medium to be pumped; at least one screw conveyor ( 6 ) for mixing said additive with said medium to be pumped, said screw conveyor having a second driving torque, and, characterized in that, the shaft ( 3 ) and the screw conveyor ( 6 ) are functionally connected, such that the first driving torque and the second driving torque are coupled.

Poly(lactic acid) composition with improved impact resistance

The present invention relates to a poly(lactic acid) composition with improved impact resistance, comprising, by weight: 60% to 97% of poly(lactic acid) (PLA), and 3% to 40% of a mixture of compounds A and B in which A is a copolymer of ethylene and of an unsaturated monomer bearing at least one epoxide or carboxylic acid or carboxylic acid anhydride function, and optionally of alkyl (meth)acrylate, and B is a copolymer of ethylene and of alkyl (meth)acrylate, wherein said mixture having a wt % (A)/wt % (A+B) ratio of between 0.10 and 0.49. The present invention also relates to the manufacture of parts or objects using these compositions.

Molding apparatus and molding method

The present invention provides a molding apparatus by which it is possible to make a frame located around a mold contact thermoplastic resin. In the molding apparatus of the present invention, the thermoplastic resin extruded from an extruding machine in a sheet form is adsorbed onto a cavity surface of the mold. As a result, the thermoplastic resin is shaped into a shape according to the cavity surface. The molding apparatus includes a frame that is positioned around the mold and is movable relative to the mold. In the frame, a suction part to suck the thermoplastic resin is provided.

Process and apparatus for producing crystalline resin film or sheet

A process and apparatus for manufacturing a crystalline resin film or sheet. This manufacturing apparatus includes: an extruder that melts crystalline resin while supplying it; a gear pump that is provided on the downstream side of the extruder; a die which is provided on the downstream side of the gear pump, and which has a slit-shaped aperture; a cooling apparatus which cools film-shaped or sheet-shaped crystalline resin (A) discharged in a melted state from the die to a temperature which is not less than the crystallization temperature but not more than the melting point; and a pair of pinch rolls that press-roll between them the film-shaped or sheet-shaped crystalline resin (B) which has passed through the cooling apparatus ( 40 ), wherein the pair of guide rolls are positioned such that the thickness of the film-shaped or sheet-shaped crystalline resin (B) which has passed through the cooling apparatus is between 1.3 and 8.0 times the thickness of the film or sheet (C, D) after it has been press-rolled.

Integrated single and twin screw extruder

An extruder is disclosed, and more particularly, to an integrated single screw extruder and a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The integrated extruder includes a first barrel assembly and a second barrel assembly. The integrated extruder further includes a first screw having a first threaded portion and a second threaded portion. The first threaded portion is housed within the first barrel assembly and is configured to provide upstream material processing. The second threaded portion is housed within the second barrel assembly and is configured to provide downstream material processing. The integrated extruder further includes a second screw having a non-threaded shaft portion and a threaded portion. The threaded portion of the second screw is housed within the second barrel assembly and is configured to provide the downstream material processing with the second threaded portion of the first screw.

Integrated single and twin screw extruder

An extruder is disclosed, and more particularly, to an integrated single screw extruder and a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The integrated extruder includes a first barrel assembly and a second barrel assembly. The integrated extruder further includes a first screw having a first threaded portion and a second threaded portion. The first threaded portion is housed within the first barrel assembly and is configured to provide upstream material processing. The second threaded portion is housed within the second barrel assembly and is configured to provide downstream material processing. The integrated extruder further includes a second screw having a non-threaded shaft portion and a threaded portion. The threaded portion of the second screw is housed within the second barrel assembly and is configured to provide the downstream material processing with the second threaded portion of the first screw.

Integrated single and twin screw extruder

An extruder is disclosed, and more particularly, to an integrated single screw extruder and a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The integrated extruder includes a first barrel assembly and a second barrel assembly. The integrated extruder further includes a first screw having a first threaded portion and a second threaded portion. The first threaded portion is housed within the first barrel assembly and is configured to provide upstream material processing. The second threaded portion is housed within the second barrel assembly and is configured to provide downstream material processing. The integrated extruder further includes a second screw having a non-threaded shaft portion and a threaded portion. The threaded portion of the second screw is housed within the second barrel assembly and is configured to provide the downstream material processing with the second threaded portion of the first screw.