By Extrusion Patents (Class 264/75)
  • Patent number: 11173643
    Abstract: A wood-grained polymer substrate includes a plurality of layers of different colors. The substrate is formed into elongated boards and used in the production of various end products similar to natural wood. Methods for producing the wood-grained polymer substrate are also provided.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: November 16, 2021
    Assignee: TANGENT TECHNOLOGIES LLC
    Inventors: Andrew Stephens, Francisco Morales, Tadeusz Rybka
  • Patent number: 11097532
    Abstract: A method for making a mold is provided. The method includes the following steps a) to d): a) in which a polymer solution is discharged from a liquid droplet discharger onto a stage, where the polymer solution is capable of solating at a temperature lower than a sol-gel transition temperature and gelating at a temperature higher than the sol-gel transition temperature; b) in which the polymer solution discharged onto the stage is maintained at a temperature higher than the sol-gel transition temperature; c) in which the liquid droplet discharger and the stage are relatively moved to form a gel layer on the stage, where the gel layer has a shape corresponding to a locus of the relative movement; and d) in which the polymer solution is discharged from the liquid droplet discharger onto the gel layer to laminate another gel layer thereon and obtain a laminated object.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: August 24, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuuya Endoh, Shinji Ohtani
  • Patent number: 11071607
    Abstract: A method of building up a dental object includes steps of (i) determining the three-dimensional shape of the object; (ii) mixing at least a first and a second component to form a hardenable composition; (iii) depositing the hardenable composition through a nozzle; (iv) performing steps (ii) and (iii) in combination with moving the nozzle by computer control based on said data. The invention helps providing an object like a dental restoration at maximized geometric and optical quality.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 27, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Helmar B. Mayr, Malte Korten, Carsten Franke, Robert Leland Wee Smithson
  • Patent number: 11007690
    Abstract: A method of injection molding a building product includes providing an injection mold with a plurality of gates located adjacent a perimeter of the injection mold. The method further includes commingling a first material and a second material into a flow, the second material comprising a color that contrasts with a color of the first material and injecting the commingled flow into the plurality of gates to form a building product. Thereafter, the method includes removing the building product from the injection mold. The second material extends through an interior of the building product and appears as contrasting streaks on an exterior of the building product to form a variegated grain appearance. The method also includes notching a portion of the building product, such that the building product has a substantially linear grain in an exposed portion thereof.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: May 18, 2021
    Assignee: CERTAINTEED CORPORATION
    Inventors: Stephen W. Steffes, Brian W. Kirn
  • Patent number: 10913202
    Abstract: Methods, systems, and devices for the manufacture of 3D printed components with structurally integrated metal objects using an additive manufacturing system enhanced with a range of possible secondary embedding processes. One or more layers of a three-dimensional substrate can be created by depositing a substrate, and then one or more 3D printed components can be configured on the substrate with one or more metal objects using additive manufacturing enhanced by one or more secondary embedding processes.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 9, 2021
    Assignee: The Board of Regents, The University of Texas System
    Inventors: David Espalin, Eric MacDonald, Ryan B. Wicker
  • Patent number: 10870235
    Abstract: An additive manufacturing system operates an actuator to move an extruder with reference to a selected first zig-zag pattern to sparsely fill an interior region of an object by extruding a swath of thermoplastic material that has straight portions connected by angled portions. After a first pass using the first zig-zag pattern is completed, a second zig-zag pattern is used to form a complementary swath that forms rigid structure with the first swath. Use of the two patterns is alternated to sparsely fill the interior region in multiple layers of the object until a predetermined distance from a solid fill structure or surface is detected. Transition patterns are then used to increase the density of the swaths in the interior region in the next successive layers of the object until the layer is reached where a solid fill surface is formed over the swaths formed using the transition patterns.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: December 22, 2020
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, Peter J. Nystrom, Christopher G. Lynn, Jason O'Neil
  • Patent number: 9266289
    Abstract: Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin and coated veil systems to create a synergistic weather resistance surface with self contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components. Various methods, system, a ladder rail.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: February 23, 2016
    Assignee: Werner Co.
    Inventors: James Vincent Gauchel, Allison Stright Clapper, Juan Antonio Rivera, Harold Carl Piraneo
  • Patent number: 9248600
    Abstract: A three-dimensional printer uses its extruder and build platform to properly orient the build platform within a working volume. In a multi-point leveling operation, the extruder is moved to the z-axis origin at a number of x-y positions within the plane of the build platform, and the height of the build platform is adjusted to meet the extruder at the origin. If the build platform is a meltable material such as a plastic, then this leveling process must be performed while the extruder is cool. A homing operation may be performed periodically after leveling in order to realign the z-axis positions of the build platform and extruder. A non-meltable contact point may be usefully provided so that homing can be performed while the extruder is hot, such as immediately before a build or between a number of builds.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 2, 2016
    Assignee: MakerBot Industries, LLC
    Inventors: Taylor S. Goodman, Mark Waller, Aljosa Kemperle
  • Patent number: 9168698
    Abstract: An extruder or other tool head of a three-dimensional printer is instrumented to detect contact force against the extruder, such as by a build platform or an object being fabricated. The tool head may also be instrumented to detect deflection forces and the like acting on the tool that might indicate an operating error. The resulting feedback data can be used in a variety of ways to control operation of the three-dimensional printer during fabrication or diagnostics.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: October 27, 2015
    Assignee: MakerBot Industries, LLC
    Inventors: Aljosa Kemperle, Filipp Gelman, Peter Joseph Schmehl
  • Patent number: 8945337
    Abstract: The present invention relates to a method to produce a polymeric sheet comprising the steps of providing an acid-based polymer, providing a neutralizing agent, the neutralizing agent being selected from the group consisting of an organic metallic compound, a metallic salt of a fatty acid, and an ionomer, or a mixture thereof, providing a processing oil, mixing said acid-based polymer, said neutralizing agent, said processing oil, to obtain a polymeric composition, and processing said polymeric composition to form a polymeric sheet. The polymeric sheet may be used as a component, or as a substrate, of a surface covering. The polymeric sheet may also be used to form polymeric particles which are component of so-called “homogenous”, or substrate-free, surface covering.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: February 3, 2015
    Assignee: Tarkett Inc.
    Inventors: Victor Caldas, Daniel Tremblay, Marcus Hyde, Jean-François Courtoy
  • Patent number: 8535583
    Abstract: The invention relates to a hydraulic binder product [12, 10] which includes a mixture of a hydraulic binder [38, 202], a polyvinyl alcohol [14, 204] and a gelling agent [54] which reacts with the polyvinyl alcohol and a method [8] of producing same.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: September 17, 2013
    Assignee: Tower Technology Holdings (Pty) Ltd.
    Inventor: Michael Windsor Symons
  • Publication number: 20130224437
    Abstract: Disclosed is an apparatus for manufacturing synthetic wood having spripes, and the method thereof and the syn-thetic wood of the same. The apparatus includes a main extruder comprising a hopper through which a raw material is injected, a heating cylinder which is disposed at a lower side of the hopper so as to melt the raw material, and an extrusion screw which ex-trudes the melted raw material in the heating cylinder; an uneven wood grain forming part which injects the melted different colors raw material in a transverse direction (or diagonal direction) so as to form an uneven stripe pattern in the transverse direction (or diagonal direction) as well as a length direction of synthetic wood and at an outer surface and an inner portion thereof; and a mold which forms the extruded material introduced through the uneven wood grain forming part into an extruded product of synthetic wood.
    Type: Application
    Filed: November 9, 2011
    Publication date: August 29, 2013
    Applicant: LG Hausys, Ltd.
    Inventors: Jong Sung Park, Jung II Son
  • Publication number: 20130069268
    Abstract: One or more colorants are infused into thermoplastic materials in a randomized pattern to create a unique visual effect in a plastic preform or container. The visual effect may be similar to that of a drop of dye diffusing in water and forming a ribbon pattern. In some embodiments, a desired infusion effect may be achieved by generating inconsistent loading of a colorant-containing intermediate layer to achieve ribbons or swirls of color throughout the preform or a portion thereof.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 21, 2013
    Applicant: PepsiCo, Inc.
    Inventors: Wei Liu, Lee M. Nicholson
  • Patent number: 8323545
    Abstract: A co-extrusion process for making decorative moldings having a simulated wood appearance and a given profile includes mixing a base material and color particles to form a mixture, the base material having a rigid polymer and the color particles having a different color from the base material and a higher melt temperature than the base material. The mixture is heated and displaced using a feed screw such that the color particles move helically along the trajectory of the feed screw while avoiding backflow and melting to create corresponding helical vein segments within the base material. The mixture is forced through a tubular channel while controlling heat and shear conditions such that the helical vein segments remain substantially intact.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: December 4, 2012
    Assignee: Plastibec Inc.
    Inventors: Angelo Sudano, Benoit Meloche
  • Patent number: 8197733
    Abstract: The invention is the provision of an elongated imitation wood product or component which has a plastic core and a plastic coating on at least one surface with the coating, which is of two different colours and which has a randomly swirled pattern, giving a realistic appearance of the wood grain of natural wood to the product. The invention further is in the method and equipment for producing such a realistic imitation wood product or component made of plastic.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 12, 2012
    Assignee: Plastibec Inc.
    Inventor: Angelo Sudano
  • Publication number: 20120133071
    Abstract: A method for producing leather pellets, and a method for producing compound granules from leather pellets and a polymer material, for use in molded parts or films. The leather pellets are produced through the following steps: Shavings, crust leather remnants and finished leather waste are obtained as waste products in leather production and finished leather processing; the shavings, crust leather remnants and finished leather waste are milled into ground leather stock comprising leather fibers; the ground stock is pressed into leather pellets; and the leather pellets are dried to a residual moisture content of no more than 30% by weight. The leather pellets can be mixed with a polymer material at a ratio of 10-95% by weight and bonded to one another and shaped forming compound granules. The compound granules can be used to produce molded parts by injection molding or films by calendering.
    Type: Application
    Filed: July 26, 2010
    Publication date: May 31, 2012
    Applicant: BADER GMBH & CO. KG
    Inventor: Thomas Christof Bader
  • Patent number: 8168104
    Abstract: Disclosed herein are a method of manufacturing a wood plastic composite panel, including a panel manufacturing process of extruding and cooling a resin complex, such that wood fiber is uniformly dispersed into a synthetic resin matrix, to manufacture the resin complex into the form of a panel, an embossing process of forming a wood pattern corresponding to the cut-open surface of a natural lumber on the surface of the panel to a predetermined depth, and a brushing process of removing some of a synthetic resin layer from the surface of the panel to form linear micro concavo-convex parts to a predetermined depth, and an apparatus for manufacturing a wood plastic composite panel that is capable of efficiently performing the same.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: May 1, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Yousoo Han, Seongchan Park, Jungil Son, Dongjin Kim, Sangho Han, Yunhwan Hwang
  • Publication number: 20110236638
    Abstract: Untreated, embossed surfacing veils with no whitening additives can be used in a fiber-reinforced process to make parts that are more vibrant in color. The lack of whitening agents minimizes the color pollution and provides a part that is richer in color with a smooth, glossy surface. Fabrics with unbonded areas used as surfacing veils allow the veils to be more flexible, improving the performance in the process. High air permeability above 685 cubic feet per minute per square foot is also beneficial in allowing resin to freely flow through the surfacing veil.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 29, 2011
    Inventors: Albert E. Ortega, Daniel Baillie
  • Patent number: 8017051
    Abstract: The artificial marble with good natural pattern and color in accordance with the present invention is prepared mixing ununiformly at least two liquid resins through a line mixer 1, feeding the ununiformly mixed resin on a moving steel belt 4 at a constant speed through a flexible hose 2 and an exit nozzle 3, and reciprocating the exit nozzle perpendicularly to the steel belt by a predetermined program for the exit nozzle to stop at different positions for different durations. The line mixer used in this invention is a Kenics type and has inner elements of eight or less than eight. A line mixer with four to eight elements can be more preferably used.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: September 13, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Sung Mook Choi, Dong Choon Chung
  • Publication number: 20110177291
    Abstract: A co-extrusion process for making decorative moldings having a simulated wood appearance and a given profile includes mixing a base material and color particles to form a mixture, the base material having a rigid polymer and the color particles having a different color from the base material and a higher melt temperature than the base material. The mixture is heated and displaced using a feed screw such that the color particles move helically along the trajectory of the feed screw while avoiding backflow and melting to create corresponding helical vein segments within the base material. The mixture is forced through a tubular channel while controlling heat and shear conditions such that the helical vein segments remain substantially intact.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 21, 2011
    Applicant: Plastibec Inc.
    Inventors: Angelo Sudano, Benoit Meloche
  • Publication number: 20110163179
    Abstract: A tubular plastic drinking straw having a flat side with a message imprinted on the flat side is formed by an extruding head connected to two extruders, one of which contains an opaque plastic and the other of which extrudes a substantially transparent plastic. The plastics are fed simultaneously through an extruding die which generates a tubular shape with at least one flat side, with the opaque plastic forming a flat side. The flat side is then imprinted with a message formed of characters extending longitudinally along the length of the tube. The tube may then be bent into a sinuous shape for novelty purposes.
    Type: Application
    Filed: January 6, 2010
    Publication date: July 7, 2011
    Inventor: Erik Lipson
  • Publication number: 20100154376
    Abstract: Inherently colored polyester polymers with controlled branching include a chromophoric co-monomer in their backbone. The chromophoric co-monomer may be a carboxyl terminated chromophoric co-monomer. such as metallo-phthalocyanine tetracarboxylic acid. The inherently colored polyester polymer may be melt-spun into a filament or fiber.
    Type: Application
    Filed: August 8, 2006
    Publication date: June 24, 2010
    Applicant: RELIANCE INDUSTRIES LTD
    Inventors: Vikas Madhusudan Nadkarni, Subbiah Venkatachalam, Jayprakash Vinayak Labde, Kirti Gajanan Patil, Milind Satish Vaidya
  • Publication number: 20100129622
    Abstract: A variegated capstock for covering a substrate for a building product has polymeric streaks in a non-clear, non-opaque matrix. Rapid cooling of the matrix minimizes formation of crystallites, such that the polymeric streaks become visible through a surface of the non-opaque matrix. The streaks are visible by having a color or an index of refraction different from that of the matrix. The matrix is in one or more layers, and the polymeric streaks are in the layers. The substrate is visible through the non-clear, non-opaque matrix and can appear partially obscured by the non-clear, non-opaque matrix.
    Type: Application
    Filed: February 4, 2008
    Publication date: May 27, 2010
    Applicant: Certain Teed Corporation
    Inventors: Husnu Kalkanoglu, Gregory F. Jacobs
  • Patent number: 7651646
    Abstract: Plastic surfacing material of the FOUNTAINHEAD® type having a bold and aesthetically pleasing appearance is achieved by the use TFR pigments, the latter of which are manufactured by orienting reflective flake pigments in a plastic substrate and grinding the substrate to a particulate material.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: January 26, 2010
    Assignee: The Diller Corporation
    Inventors: Jorge Alfonso, Leonard R. Elbon, Donald Wayne Finnerty
  • Publication number: 20090309251
    Abstract: This invention provides methods and devices for manufacturing moldable materials including various types of natural and synthetic clays, edible materials such as cookie dough, and modeling compound by forming a moldable billet through various techniques, and reducing the cross section of said moldable billet such that features in the moldable billet appear in a similar arrangement in the resulting extruded product.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 17, 2009
    Inventors: Douglas P. DuFaux, Maurice Belisle
  • Publication number: 20090305008
    Abstract: Prepare an oriented polymer composition having a decorative appearance by a process including extruding an orientable polymer composition from an extruder, directing the orientable polymer composition through a calibrator and then drawing the orientable polymer composition, optionally through a drawing die, at a drawing temperature to form an oriented polymer composition wherein the process further includes disposing a colorant onto a surface of the oriented polymer composition prior to the calibrator, prior to the drawing die or both prior to a calibrator and prior to the drawing die in a pattern having a width of at least five millimeters and that preferably so that the colorant is at least partially located on a recessed portion of the resulting oriented polymer composition's surface and/or extends to a depth of at least one millimeter below the oriented polymer composition's surface.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 10, 2009
    Inventors: Kevin L. Nichols, James J. O'Brien, Andrew T. Graham, Gregory T. Stewart, Claude Brown, JR.
  • Publication number: 20090291316
    Abstract: A process for the production of at least two-colored shaped ceramic parts from a granular ceramic raw material having a first of the at least two colors, wherein the second of the at least two colors is added as a colored pigment or a colored pigment substance and the surface of the granular ceramic raw material is at least partially coated, wherein the coated granular ceramic raw material is then pressed into a solid form.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 26, 2009
    Inventors: Thomas RAUCH, Hannes Hatzl, Michael Biebl
  • Publication number: 20090206503
    Abstract: Disclosed herein are a method of manufacturing a wood plastic composite panel, including a panel manufacturing process of extruding and cooling a resin complex, such that wood fiber is uniformly dispersed into a synthetic resin matrix, to manufacture the resin complex into the form of a panel, an embossing process of forming a wood pattern corresponding to the cut-open surface of a natural lumber on the surface of the panel to a predetermined depth, and a brushing process of removing some of a synthetic resin layer from the surface of the panel to form linear micro concavo-convex parts to a predetermined depth, and an apparatus for manufacturing a wood plastic composite panel that is capable of efficiently performing the same.
    Type: Application
    Filed: November 13, 2006
    Publication date: August 20, 2009
    Applicant: LG CHEM, LTD.
    Inventors: Yousoo Han, Seongchan Park, Jungil Son, Dongjin Kim, Sangho Han, Yunhwan Hwang
  • Patent number: 7462308
    Abstract: The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: December 9, 2008
    Assignee: CertainTeed Corp.
    Inventor: Richard Arnold Hills
  • Patent number: 7381357
    Abstract: The present invention is the apparatus and method for producing a plastic sheet having a pattern produced in a layer therein. The plastic sheet is a single layer sheet or a multi-layer sheet. The pattern is produced by mixing two or more plastic extrudants together in a mixer. The pattern is visible in the layer containing the two or more plastic extrudants because an at least one of the plastic extrudants is at least partially transparent. The mixer used to produce the pattern includes a housing having an end configured to expel the mixture of the two or more extrudants through a plurality of outlets. The mixer further comprises a rotatable shaft and at least one projection coupled to the shaft and rotatable with the shaft, the at least one projection configured to orient the mixture of the two or more extrudants relative to the plurality of outlets in the housing. The mixer further comprising a thrust bearing configured to couple an end of the shaft to the housing.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: June 3, 2008
    Assignee: Primex Plastics Corporation
    Inventor: Robert Cramer
  • Publication number: 20080093763
    Abstract: This invention relates to methods and systems for forming composite extrudates including at least a base polymer, a plurality of fibers dispersed in the base polymer, and one or more colorants forming a visible, multi-color pattern, e.g., mimicking the appearance of natural wood.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 24, 2008
    Inventors: Douglas Mancosh, James Przybylinsky, Michael Haubert, Jeff Mitchell
  • Patent number: 7204944
    Abstract: A process for creating color effects in extrudable material, such as plastic. The process includes the steps of providing a first flow of viscous material of a first color and a second flow of viscous material of a second color, the second color being different from the first color. Next, the first and second flows are combined to form a stream of viscous material, where the stream is characterized by a first band of the first color and a second band of the second color, the second band being adjacent to the first band. The stream of viscous material is fed through a static mixer such that, upon exiting the static mixer, the stream is further characterized by a third band of a third color, the third color being different from the first and second colors, the third band being located between the first and second bands.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 17, 2007
    Assignee: Pelican International Inc.
    Inventor: Marie-Christine Piedboeuf
  • Patent number: 7172403
    Abstract: A gypsum wallboard core, and methods and apparatus for making the same are disclosed. Methods of making a gypsum wallboard core include extruding a gypsum slurry containing water, gypsum, slip agents, water-reducing agents, surfactants and, optional additives, through a die and onto a substantially flat, smooth, moving surface. The die has provisions at its outer sides for the introduction of slip agents into the slurry, and provisions at its lateral outer edges for the introduction of a strength-enhancing agent. Once extruded onto the conveyor belt, the slurry is chemically-activated to set and form a hardened board core which then may be easily removed from the conveyor belt and dried.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: February 6, 2007
    Assignee: National Gypsum Properties, LLC
    Inventor: W. Roy Burke
  • Patent number: 7163655
    Abstract: An apparatus and method for molding balloon catheters is disclosed. The balloon may be molded by providing a polymeric tube within a mold having an interior cavity in the shape of the desired balloon. Microwave energy, which may be generated by a gyrotron, may then be directed toward the mold, to heat the polymeric material without heating the mold. Once heated, pressurized fluid may be injected into the tube to blow the polymeric material against the interior cavity whereupon the material can cool to form the balloon or can be further heatset by additional microwave energy and be cooled to form the balloon. In accordance with one embodiment, microwave energy can also be used without a mold to form a medical device. A polymer extrusion apparatus is disclosed utilizing a microwave energy for heating polymer feedstock material within the extruder tip and die unit just prior to formation of the extrudate product.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: January 16, 2007
    Assignee: Scimed Life Systems, Inc.
    Inventors: Jan Weber, Scott Schewe
  • Patent number: 7081220
    Abstract: Plastic surfacing material of the FOUNTAINHEAD® type having a bold and aesthetically pleasing appearance is achieved by the use TFR pigments, the latter of which are manufactured by orienting reflective flake pigments in a plastic substrate and grinding the substrate to a particulate material.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: July 25, 2006
    Assignee: Formica Corporation
    Inventors: Jorge Alfonso, Leonard R. Elbon, Eric A. Franzoi, Donald Wayne Finnerty
  • Patent number: 6896830
    Abstract: A method of making an injection molded article having a marbled appearance, including the steps of: mixing at a temperature of at least 100 degrees ° C. polymeric materials having a thermal conductivity in the range of 0.001 to 0.01 cal/cm-sec-° C. wherein the polymeric materials are selected from the group consisting of polyethylene, polystyrene, polyester, and polycarbonate or combinations thereof, and one or more materials selected from the group consisting of ceramics, ceramic composites, metals and metal alloys in a blended relationship to form a viscous phase mixture, the materials in the viscous phase mixture being selected so that when in a solid phase it has a density greater than 4 grams/cc and a thermal conductivity greater than 0.101 cal/cm-sec-° C. to form a feedstock; cooling the blended viscous phase mixture to form the feedstock; and using the feedstock in an injection molding machine having a zero compression screw to form the article.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: May 24, 2005
    Assignee: Eastman Kodak Company
    Inventors: Donn B. Carlton, Dilip K. Chatterjee, Syamal K. Ghosh
  • Patent number: 6868371
    Abstract: A spatially-resolved spectrometer is used to measure streaking in molded sample plastic parts produced using a molding tool with various mold inserts which produce certain desired topological surface features upon these sample plastic parts. The measurements from one or more of these sample plastic parts are then provided to a computerized device which appropriately filters the data and calculates overall data shape, average peak and valley shift, and a quality number indicative of data slopes. These calculations are then used to determine an optimum set of ingredients and processing conditions to be used for the full-scale plastic part production.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: March 15, 2005
    Assignee: General Electric Company
    Inventors: Sandra Freedman Feldman, Andrew Joseph Poslinski, Harsha Mysore Hatti, Craig Alan Cantello, James Louis Cifarelli, Kena Kimi Yokoyama, Grigoriy Aleksandrovich Shmigol, Hua Wang, James Paul Barren, Arthur Joseph Osborn
  • Patent number: 6852260
    Abstract: A process for preparing a cleansing bar having well-defined platelet striations therein which comprises extruding a cleansing bar composition having platelets therein to form a cleansing bar using an extruder having a perforated barrier across the cross section of the extruder, wherein the perforated barrier is located at a sufficient distance downstream from the spider to allow well-defined platelet striations to be observed in the finished cleansing bar with the human eye. The perforated barrier is located at a distance from the spider equal to at least about 60%, preferably at least about 70%, of the distance from the spider to the extruder cone outlet of the extruder. Generally, a standard extruder cone length from spider to cone outlet is about 483 mm to about 560 mm.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: February 8, 2005
    Assignee: Colgate-Palmolive Company
    Inventors: Liem Vu, Matthew Edstrom, Armando San Juan
  • Publication number: 20040232581
    Abstract: The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.
    Type: Application
    Filed: June 21, 2004
    Publication date: November 25, 2004
    Applicant: CertainTeed Corporation
    Inventor: Richard Arnold Hills
  • Patent number: 6805818
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: October 19, 2004
    Assignee: Pursuit Marketing, Inc.
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
  • Patent number: 6805820
    Abstract: This invention relates to an apparatus end method for introducing various additives in solid form into a soap mass for the ultimate manufacture of soap bars. Specifically, the invention is directed to producing soap bars having a multicolored or marbleized appearance and made from a variety of different colored soap materials. Soap pellets having a color are introduced into a soap plodder as is customary. A second or alternate color of soap pellet is separately introduced into the interior of the plodder just before that point where the helical screw of the plodder enters the barrel of the extruder portion of the plodder.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: October 19, 2004
    Assignee: The Dial Corporation
    Inventor: E. Gary Myers
  • Patent number: 6773643
    Abstract: A series of three-dimensional burls are formed in a filled-acrylic solid surface material by curing partially mixed steams of acrylic resin casting compositions with defined parameters of viscosity, density and surface tension.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: August 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Carl P. Beitelshees, Rolf Thomas Weberg, Shitong Zhu, Elizabeth R. Walter
  • Patent number: 6752941
    Abstract: The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: June 22, 2004
    Assignee: CertainTeed Corporation
    Inventor: Richard Arnold Hills
  • Publication number: 20040038002
    Abstract: An extruded wood imitation component and process is described. The component has a solid core containing coloured polymer material formed from a mix of coloured thermoplastic polymer with veins of contrasting coloured polymer throughout the core and on outer surfaces of the component simulating natural wood. In the extrusion process the mixture includes coloured polymer pellets of different colours and sizes which are mixed and melted in an extruder under controlled conditions to provide contrasting streaks of molten polymer throughout a molten extruded core and on outer surfaces of the core of the extrudate which exits the land of the die.
    Type: Application
    Filed: October 23, 2002
    Publication date: February 26, 2004
    Inventors: Sandro Franco, Carmine Franco
  • Patent number: 6692683
    Abstract: Multilayer polymeric shells for spas, bathtubs and shower enclosures having a textured and marbled surface layer. The shells are produced by forming by extrusion a multilayer polymeric sheet having a marbled appearing top layer, passing the sheet between rollers to impart a textured surface to the marbled top layer of the sheet, and thermoforming the sheets into the structural shells for spas, bathtubs and shower enclosures.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: February 17, 2004
    Assignee: Watkins Manufacturing Corporation
    Inventors: Gary L. Gockel, Kathy L. Pratschner, Steven M. Hammock
  • Patent number: 6673756
    Abstract: Multiphase soaps in which the individual phases are highly visible when viewed from above and from the side have high stability. Their use permits various scent experiences to be achieved during the washing operation.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: January 6, 2004
    Assignee: Symrise GmbH & Co. KG
    Inventors: Steffen Sonnenberg, Marcus Ohrmann, Theodor Schmidt, Rolf-Günter Schmidt
  • Publication number: 20030218266
    Abstract: The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.
    Type: Application
    Filed: March 14, 2003
    Publication date: November 27, 2003
    Inventor: Richard Arnold Hills
  • Publication number: 20030205834
    Abstract: An extrusion molding apparatus for a product having a wood pattern and an extrusion molding method are disclosed, in which a second synthetic resin containing a wood powder of 80˜120 meshes at a predetermined ratio is fed to a die through a second extruder and then is coated on a surface of the product, thereby providing an esthetic surface and an improved durability.
    Type: Application
    Filed: June 5, 2003
    Publication date: November 6, 2003
    Inventor: Moon Jae Lee
  • Publication number: 20030146534
    Abstract: An apparatus for adding a coloring agent to a material used to manufacture brick includes an extrusion container having an opening defined in the sidewall thereof A coloring agent supply communicates with the opening for delivery of the coloring agent to the interior of the container as brick making material passes through the container. A storage device stores the coloring agent supply amount data corresponding to a supply amount for each of a plurality of brick types, each of the plurality of brick types having a different appearance. A controller is adapted to control a supply of a coloring agent from said coloring agent supply into said extrusion container in accordance with a selected brick type. A computer can be connected to the controller for data transfer. Accordingly, the computer can be used as an interface between a user and the apparatus.
    Type: Application
    Filed: February 7, 2002
    Publication date: August 7, 2003
    Inventors: Mark W. Chutich, Douglas Leon Prince, James W. Krueger, Steven K. Hitt
  • Publication number: 20030127760
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Application
    Filed: February 24, 2003
    Publication date: July 10, 2003
    Applicant: R. P. Scherer Corporation
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian