Including Extrusion On Or About Plural Discrete End-to-end Or Discrete Side-by-side Preforms (e.g., Definite Length Preform, Etc.) Patents (Class 264/171.11)
  • Patent number: 6551535
    Abstract: A high throughput, automated process for coating ceramic monoliths used as catalytic converters that overcomes problems with coating monoliths individually in a mold. The monoliths are provided with end caps to cover the open functional ends, then loaded serially into an inlet channel leading to an extrusion chamber. As each monolith is pushed into the channel, one monolith enters the extrusion chamber, and the monolith just coated in the extrusion chamber is made to exit onto a finished part conveyor. Thereafter, the end caps are removed and cleaned for reuse on new monoliths yet to be coated.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: April 22, 2003
    Assignee: ACS Industries, Inc.
    Inventor: Karel Sander
  • Publication number: 20030032357
    Abstract: A spunbond nonwoven fabric useful as a topsheet is produced from polypropylene filaments including a high level of reclaimed polypropylene, while maintaining a product quality, including superior formation, comparable to that obtained when using 100 percent virgin polymer. The spunbond nonwoven fabric is made with multicomponent filaments having at least two different polymer components occupying different areas within the filament cross section, and wherein one of the polymer components comprises reclaimed polypropylene recovered from previously spun polypropylene fiber or webs comprised of previously spun polypropylene fiber. In a specific embodiment, the filaments are sheath-core bicomponent filaments and the reclaimed polypropylene is present in the core component. The core of the bicomponent filament can be comprised of up to 100% reclaimed polypropylene.
    Type: Application
    Filed: August 2, 2001
    Publication date: February 13, 2003
    Applicant: BBA Nonwovens Simpsonville, Inc.
    Inventors: Jay Darrell Gillespie, Daniel Deying Kong, Robert C. Alexander
  • Patent number: 6511742
    Abstract: An adhesive tape which comprises: (1) a backing film, wherein the backing film has at least two intermeshed coextruded layers of different composition, whose interface has a nonlinear course in cross section, which continues laminarly in the machine direction and has been oriented in the machine direction, and has plane-parallel outer faces; and (2) at least one adhesive layer which is attached to the backing film.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: January 28, 2003
    Assignee: tesa AG
    Inventors: Bernhard Müssig, Gert Schmeer
  • Publication number: 20030010820
    Abstract: The present invention includes a process for making a magnetically readable card. The process includes providing a polymeric extrudable substrate material and one or more magnetic strips. The substrate is extruded in an extruder. The magnetic strips are aligned and coextruded with the polymeric substrate in the extruder to form a continuous length of magnetic strips and polymeric material.
    Type: Application
    Filed: September 5, 2002
    Publication date: January 16, 2003
    Applicant: Taylor Corporation
    Inventors: Duncan McCannel, Daniel A. Eke
  • Patent number: 6506873
    Abstract: The present invention relates to a fibrous material which includes a plurality of polylactide containing fibers. The plurality of polylactide containing fibers can be considered low shrinkage or high shrinkage. The plurality of polylactide containing fibers are considered low shrinkage fibers if they provide a boiling water shrinkage propensity of less than about 20%. The plurality of polylactide containing fibers are considered high shrink fibers if they provide an average fiber boiling water shrinkage propensity of greater than about 10% and a heat of fusion of less than about 25 J/g. The invention additionally relates to the use of an extrusion process to provide low shrinkage fibers and high shrinkage fibers. The invention further relates to the use of these fibers in desirable products.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: January 14, 2003
    Assignee: Cargill, Incorporated
    Inventors: Christopher Michael Ryan, Nancy Uzelac Buehler, Scott Louis Gessner, Andrea Lee Brosch
  • Patent number: 6403013
    Abstract: The invention provides a method for producing a drip irrigation line, comprising a continuous tubing with spaced-apart drip outlets and a plurality of self-regulating emitter elements for drip irrigation arranged therein, wherein each of said elements is made from a thermoplastic material, injection-molded as a single unit, which material is cross-linked for improved elasticity, said method comprising sequentially introducing a plurality of said emitter elements at predetermined intervals into the extrusion head of a continuous tubing-producing extruder, whereby said elements are each heat-welded within said tubing before the cooling thereof and subsequently cross-linking said thermoplastic material of each of said elements while inside said continuous tubing.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: June 11, 2002
    Assignee: Plassin Technical Plastics Works for Agriculture, Industry and Building Ltd.
    Inventor: Chen Man
  • Patent number: 6336265
    Abstract: A composite railroad cross tie supporting railroad track rails on a ballast or concrete roadbed is provided comprising an elongated wooden core, an end cap positioned over each end of the core and an outer shell or coating. The wooden core consists of virgin or recycled natural wood or of man made engineered wood such as oriented strand board (OSB), plywood, and the like. The outer coating can consist of virgin or recycled thermoplastic, thermoset resin, and/or rubber, with or without fillers or reinforcements. In manufacture, the core member is sized to a dimension which is less than the desired dimension of the finished composite cross tie. The end caps are then positioned over ends of the core member. Following the positioning of the end caps, the coating is applied to the core member in a continuous process by passing a series of core members with their end caps in a substantially end-to-end configuration through a cross head die.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: January 8, 2002
    Inventor: Siegfried Niedermair
  • Patent number: 6238782
    Abstract: The invention relates to a three-layer, biaxially oriented polyester film which has better abrasion properties than prior art films, together with very good electromagnetic properties. The structure on the two sides of the film in composed of at least one base layer B and, applied to this base layer, outer layers A and C, wherein the outer layer A has a roughness gas flow greater than 1000 sec and less than 2000 sec, and the outer layer C has a roughness profile gas flow of less than 600 sec. The invention further relates to a process for producing the film, and to its use as a magnetic tape film.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 29, 2001
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Joerg Hellmann, Gottfried Hilkert
  • Patent number: 6228492
    Abstract: A process for preparing fibers containing intrinsically conductive polymers comprises extruding two or more filaments, applying a coating formulation containing a salt of an intrinsically conductive polymer to at least one of the filaments to form a coated filament, combining the filaments to form a filament bundle, and processing the bundle into a fiber. A filament coated with an intrinsically conductive polymer and a fiber comprising at least one coated filament are also provided which are useful in preparing textiles and other materials which exhibit conductivity.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: May 8, 2001
    Assignee: Zipperling Kessler & Co. (GmbH & Co.)
    Inventors: Patrick J. Kinlen, Yiwei Ding, W. Keith Fisher