US3227136A - Extrusion coating apparatus - Google Patents

Extrusion coating apparatus Download PDF

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Publication number
US3227136A
US3227136A US147828A US14782861A US3227136A US 3227136 A US3227136 A US 3227136A US 147828 A US147828 A US 147828A US 14782861 A US14782861 A US 14782861A US 3227136 A US3227136 A US 3227136A
Authority
US
United States
Prior art keywords
chamber
extrusion
rotor
hopper
dispersion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US147828A
Other languages
English (en)
Inventor
Lawrence C Bartlett
Walker F Hunter
Jerome S Osmalov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US147828A priority Critical patent/US3227136A/en
Priority to DE19621546903 priority patent/DE1546903A1/de
Priority to FR913109A priority patent/FR1338049A/fr
Priority to GB40675/62A priority patent/GB1020902A/en
Application granted granted Critical
Publication of US3227136A publication Critical patent/US3227136A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/848—Coating a support with a magnetic layer by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Definitions

  • This invention relates to an extrusion coating apparatusespecially intended for use in the manufacture of magnet1ctape of the type wherein a dispersion of magnetic particles in a suitable binder is coated onto the surface of a carrier web or strip.
  • a further object is to prevent settling-out of the magnetic dispersion by maintaining the dispersion under high shear rate conditions from the time when it leaves the supply hopper until it is actually coated onto the base tively simple construction but which will maintain uniform coating thickness over a wide web of material and which will not be subject to clogging or other dithculties in commercial use.
  • FIG. 1 is a diagrammatic view of an extrusion coating apparatus particularly suited for coating of magnetic tape
  • FIG. 2 is a cross-sectional view through an extrusion 1 hopper used in the system shown in FIG. 1;
  • FIG. 3 is an enlarged view of the extrusion orifice of the hopper of FIG. 2 showing its relation to the coating roller; and a FIG. 4 is a side view of the extrusion hopper with parts broken away better to show the interior construction thereof.
  • FIG. 1 shows the general arrangement which we have found to be especially well adapted for coating magnetic dispersion by the extrusion method onto a suitable web orbacking support.
  • the material to be coated consists of a dispersion f magnetic particles in a suitable binder, of the general type well known in the art.
  • This dispersion is stored in a suitable supply tank or hopper 2 provided with suitable stirring apparatus 3 to maintain the dispersion properly mixed together.
  • the dispersion is drawn off from the tank 2 by means of a circulating pump 4 which forces the material through a suitable filter 5 and thence, by way of a return pipe 6, back to the hopper or tank 2.
  • shear rate is a numerical expression of this effect and, as used herein,,is equal to the rate at which the fluid velocity in the area near the boundary surface of the conduit or passageway changes with the distance from such surface. It is expressed in terms of velocity change per unit distance (e.g. cm. per sec.
  • the size of the conduits in the above-described circulating system and the rate of movement given the fluid material by means of pump 4 are preferably such that the material is maintained throughout the circulating system under relatively high shear rate conditions of about 200 cm. per sec. per cm. (or 200 S6074).
  • the supply of dispersion for the actual extrusion operation is tapped off from the circulating system, as indicated at 7, and is fed at a predetermined uniform rate and, again, under high shear rate conditions, to the extrusion hopper 8 by means of a suitable metering pump 9.
  • the rate of rotation of pump 9 is, of course, correlated with the desired rate of extrusion, which in turn depends upon and is correlated with the rate of movement of the base material 9 about the backing roller 10 at the coating station.
  • a suitable vacuum baflle diagrammatically indicated at 11, may be provided adjacent the extrusion orifice.
  • the pressure within bafiie 11 is preferably maintained slightly (.05 to 2.0 inches of water) below atmospheric pressure by means of a suction line 13 adapted to be connected to a suitable vacuum pump (not shown).
  • the extrusion hopper itself is conveniently constructed of a pair of body members 14 and 15 rigidly clamped together by suitable bolts 16. Members 14 and 15 are hollowed out as shown in FIG. 2 to conjointly form a generally cylindrical chamber 17, the forward walls 17' of which converge toward an extrusion slot 18 terminating in an orifice 32.
  • the vertical width or thickness of slot 18 has been greatly exaggerated in FIG. 2 for purposes of illustration. In an actual hopper having a chamber of 2 /2 inches diameter, the vertical width or thickness of slot 18 might be only about .003 to .004 inch, for producing a layer of about .002 inch thick ness (prior to drying) as shown in enlarged view FIG. 3. As shown in FIGS.
  • the hopper sections 14 and 15 are preferably provided with a plurality of inter-connected passageways 20 for circulation of a temperature regulating fluid therethrough as diagrammati cally indicated at 20'.
  • Rotor 21 not only serves to maintain the dispersion within the chamber 17 under high shear rate conditions but also tends to greatly improve the distribution of the material throughout the entire length of this chamber, thereby causing the extruded layer to be of uniform quality throughout the width of the carrier strip.
  • this rotor tends to cause a problem.
  • the rotor is so long that, unless provisions were taken to guard against this effect, the rotor would sag slightly due to its own weight and would therefore tend to set up vibrations which would be transmitted to the dispersion being coated and would be reflected as small wave-like variations in the thickness of the coated dispersion on the final tape.
  • we have effectively prevented this trouble by so constructing the rotor that it has a weight substantially equal to that of the displaced dispersion.
  • the type of rotor construction shown in FIG. 4 has been found most effective to accomplish this result.
  • the rotor is conveniently formed of a tubular member 22 of suitable thickness mounted on a pair of end hub members 23 and 24 respectively.
  • a suitable seal 25 is provided to prevent the dispersion (which is quite abrasive) from getting into the righthand bearing 26 by which the rotor is mounted in the hopper end plate 27.
  • Slot 18 and orifice 32 are preferably made sufficiently narrow (in the direction corresponding to the thickness of the extruded strip) that the dispersion passing therethrough will be maintained under the desired high shear rate conditions until it is finally extruded from the orifice. Thus there is never an opportunity for unwanted separation to occur.
  • the dispersion in tank 2 is, as previously described, continually being circulated by pump 4 through filter and return pipe 6. Some of this extrusion, during the actual coating operations, is drawn off at a predetermined rate by metering pump 9 and supplied to the extrusion hopper 8.
  • the material within the chamber 17 of hopper 3 is continually being swirled about the axis of the chamber at a relatively high rate due to the frictional drag produced by the rotor 21, as a result of which the dispersion will be maintained under high shear rate conditions, particularly adjacent the opposed peripheral walls of the chamber 17 and rotor 21 so that any tendency to separate is minimized.
  • An extrusion hopper comprising a body having formed therein a generally cylindrical elongated chamber having a peripheral wall, said body having a slot extending generally radially outwardly through said peripheral wall of said chamber and terminating in an extrusion orifice at the exterior of said body, a substantially smooth cylindrical rotor having its axis extending axially of and generally coaxial with said chamber and mounted for rotation therein, the outer periphery of said rotor being spaced radially inwardly from said wall of said chamber, means for supplying material to be extruded to said chamber at a predetermined rate and means for rotating said rotor about its axis with a uniform angular velocity.
  • An extrusion hopper comprising a body having a generally cylindrical elongated chamber formed therein and having a slot extending generally radially outwardly from said chamber and terminating in an extrusion orifice at the exterior of said body, said slot and said orifice being substantially coextensive in length with said chamber, a cylindrical rotor having a substantially smooth exterior periphery of a diameter somewhat less than that of said chamber, spaced bearing means carried by said body at opposite ends of said chamber and mounting said rotor for rotation within said chamber substantially coaxially therewith, means for supplying material to be extruded to said chamber and means for rotating said rotor with uniform angular velocity about its axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US147828A 1961-10-26 1961-10-26 Extrusion coating apparatus Expired - Lifetime US3227136A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US147828A US3227136A (en) 1961-10-26 1961-10-26 Extrusion coating apparatus
DE19621546903 DE1546903A1 (de) 1961-10-26 1962-09-25 Schlitzgiesser
FR913109A FR1338049A (fr) 1961-10-26 1962-10-23 Trémie d'extrusion pour l'application continue d'une couche de matière sur un support en bande
GB40675/62A GB1020902A (en) 1961-10-26 1962-10-26 Extrusion coating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US147828A US3227136A (en) 1961-10-26 1961-10-26 Extrusion coating apparatus

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Publication Number Publication Date
US3227136A true US3227136A (en) 1966-01-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
US147828A Expired - Lifetime US3227136A (en) 1961-10-26 1961-10-26 Extrusion coating apparatus

Country Status (3)

Country Link
US (1) US3227136A (de)
DE (1) DE1546903A1 (de)
GB (1) GB1020902A (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479989A (en) * 1967-11-28 1969-11-25 Eastman Kodak Co Extrusion coating apparatus
US3516856A (en) * 1967-06-15 1970-06-23 Western Electric Co Method of sealing the ends of electrical components
US3645773A (en) * 1969-02-10 1972-02-29 Agfa Gevaert Ag Process for coating substrates in strip-form with photographic emulsion
US3663292A (en) * 1969-02-10 1972-05-16 Agfa Gevaert Ag Process for coating strip-form substrates
US3749370A (en) * 1971-06-16 1973-07-31 Commissariat Energie Atomique Mixing device for powdered materials
US3814055A (en) * 1971-05-17 1974-06-04 Winkler Duennebier Kg Masch Device for applying strip-shaped adhesive coatings to paper, cardboard and the like
US3880117A (en) * 1967-07-12 1975-04-29 Hoechst Ag Apparatus for the continuous coating of individual supporting elements
US3916043A (en) * 1971-11-15 1975-10-28 Eastman Kodak Co Method of coating a spliced web
JPS5132653U (de) * 1974-09-02 1976-03-10
US3968271A (en) * 1971-12-20 1976-07-06 Xerox Corporation Coating apparatus and uses thereof
US4396648A (en) * 1982-02-08 1983-08-02 Consolidated Papers, Inc. Paper coating apparatus and method
US4470789A (en) * 1982-09-17 1984-09-11 Pacific Adhesives Company, Inc. Extruder for foamed liquids
JPS6295174A (ja) * 1985-10-18 1987-05-01 Fuji Photo Film Co Ltd 塗布方法
US4667879A (en) * 1985-08-21 1987-05-26 Nordson Corporation Thermoplastic material applicator having an adjustable slot nozzle
US4729858A (en) * 1985-10-18 1988-03-08 Fuji Photo Film Co., Ltd. Magnetic liquid application method and apparatus
EP0542635A1 (de) * 1991-10-15 1993-05-19 Eastman Kodak Company Verfahren zum Auftragen einer magnetischen Dispersion und Vorrichtung
US5304331A (en) * 1992-07-23 1994-04-19 Minnesota Mining And Manufacturing Company Method and apparatus for extruding bingham plastic-type materials
EP0685313A1 (de) * 1994-06-03 1995-12-06 Rieter Automatik GmbH Stranggiesser für Stranggiessanlagen, insbesondere für thermoplastische Kunststoffe
US5516557A (en) * 1995-01-03 1996-05-14 Xerox Corporation Method for applying a flocculating coating composition including maintaining turbulent flow conditions during extrusion
US5759627A (en) * 1995-03-31 1998-06-02 Kao Corporation Coating Apparatus
EP1136138A2 (de) * 2000-03-13 2001-09-26 Konica Corporation Extrusionsverfahren zum Beschichten und Extrusionsvorrichtung zum Beschichten
EP1197267A1 (de) * 1999-05-21 2002-04-17 Matsushita Electric Industrial Co., Ltd. Auftragsvorrichtung für visköse materialien
EP3446792A1 (de) * 2017-08-22 2019-02-27 The Procter & Gamble Company Verfahren und vorrichtung zur anwendung eines superabsorbierenden immobilisators
US20220024101A1 (en) * 2020-07-21 2022-01-27 Building Materials Investment Corporation Method and apparatus for die coating a substrate with high viscosity materials

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540406B1 (fr) * 1983-02-04 1986-10-31 Centre Tech Ind Papier Dispositif d'enduction d'une feuille ou d'une bande en deplacement continu
DE9201546U1 (de) * 1992-02-08 1992-05-21 Schäfer, Hans-Jürgen, Dipl.-Ing., 4060 Viersen Vorrichtung zur Beschichtung von Leiterplatten mit lösungsmittelfreien Lackschichten
US6406752B1 (en) * 2000-02-14 2002-06-18 The Procter & Gamble Company Extrusion die having dynamic flow inducer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US760124A (en) * 1903-09-26 1904-05-17 Fred Bradford How Machine for making carbon-paper.
US2330282A (en) * 1940-07-31 1943-09-28 Monsanto Chemicals Manufacture of continuous sheets or webs of plastic material
US2474691A (en) * 1946-03-20 1949-06-28 Virts Inc Web coating apparatus
US2681294A (en) * 1951-08-23 1954-06-15 Eastman Kodak Co Method of coating strip material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US760124A (en) * 1903-09-26 1904-05-17 Fred Bradford How Machine for making carbon-paper.
US2330282A (en) * 1940-07-31 1943-09-28 Monsanto Chemicals Manufacture of continuous sheets or webs of plastic material
US2474691A (en) * 1946-03-20 1949-06-28 Virts Inc Web coating apparatus
US2681294A (en) * 1951-08-23 1954-06-15 Eastman Kodak Co Method of coating strip material

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516856A (en) * 1967-06-15 1970-06-23 Western Electric Co Method of sealing the ends of electrical components
US3880117A (en) * 1967-07-12 1975-04-29 Hoechst Ag Apparatus for the continuous coating of individual supporting elements
US3479989A (en) * 1967-11-28 1969-11-25 Eastman Kodak Co Extrusion coating apparatus
US3645773A (en) * 1969-02-10 1972-02-29 Agfa Gevaert Ag Process for coating substrates in strip-form with photographic emulsion
US3663292A (en) * 1969-02-10 1972-05-16 Agfa Gevaert Ag Process for coating strip-form substrates
US3814055A (en) * 1971-05-17 1974-06-04 Winkler Duennebier Kg Masch Device for applying strip-shaped adhesive coatings to paper, cardboard and the like
US3749370A (en) * 1971-06-16 1973-07-31 Commissariat Energie Atomique Mixing device for powdered materials
US3916043A (en) * 1971-11-15 1975-10-28 Eastman Kodak Co Method of coating a spliced web
US3968271A (en) * 1971-12-20 1976-07-06 Xerox Corporation Coating apparatus and uses thereof
JPS5132653U (de) * 1974-09-02 1976-03-10
US4396648A (en) * 1982-02-08 1983-08-02 Consolidated Papers, Inc. Paper coating apparatus and method
US4470789A (en) * 1982-09-17 1984-09-11 Pacific Adhesives Company, Inc. Extruder for foamed liquids
US4667879A (en) * 1985-08-21 1987-05-26 Nordson Corporation Thermoplastic material applicator having an adjustable slot nozzle
JPS6295174A (ja) * 1985-10-18 1987-05-01 Fuji Photo Film Co Ltd 塗布方法
US4729858A (en) * 1985-10-18 1988-03-08 Fuji Photo Film Co., Ltd. Magnetic liquid application method and apparatus
US4828779A (en) * 1985-10-18 1989-05-09 Fuji Photo Film Co., Ltd. Coating method
US4831961A (en) * 1985-10-18 1989-05-23 Fuji Photo Film Co., Ltd. Magnetic liquid application method and apparatus
EP0542635A1 (de) * 1991-10-15 1993-05-19 Eastman Kodak Company Verfahren zum Auftragen einer magnetischen Dispersion und Vorrichtung
US5582645A (en) * 1991-10-15 1996-12-10 Eastman Kodak Company Magnetic dispersion coating apparatus having high shear regions
US5456944A (en) * 1991-10-15 1995-10-10 Eastman Kodak Company Magnetic dispersion coating method having high shear regions
US5304331A (en) * 1992-07-23 1994-04-19 Minnesota Mining And Manufacturing Company Method and apparatus for extruding bingham plastic-type materials
EP0685313A1 (de) * 1994-06-03 1995-12-06 Rieter Automatik GmbH Stranggiesser für Stranggiessanlagen, insbesondere für thermoplastische Kunststoffe
US5516557A (en) * 1995-01-03 1996-05-14 Xerox Corporation Method for applying a flocculating coating composition including maintaining turbulent flow conditions during extrusion
EP0720873A3 (de) * 1995-01-03 1998-12-16 Xerox Corporation Extrudierungs-Beschichtungsverfahren
US5759627A (en) * 1995-03-31 1998-06-02 Kao Corporation Coating Apparatus
EP1197267A4 (de) * 1999-05-21 2006-09-20 Matsushita Electric Ind Co Ltd Auftragsvorrichtung für visköse materialien
EP1197267A1 (de) * 1999-05-21 2002-04-17 Matsushita Electric Industrial Co., Ltd. Auftragsvorrichtung für visköse materialien
US20040173633A1 (en) * 1999-05-21 2004-09-09 Matsushita Electric Industrial Co., Ltd. Viscous material application apparatus
US7464838B2 (en) 1999-05-21 2008-12-16 Panasonic Corporation Viscous material application apparatus
EP1136138A3 (de) * 2000-03-13 2003-06-18 Konica Corporation Extrusionsverfahren zum Beschichten und Extrusionsvorrichtung zum Beschichten
US6733589B2 (en) 2000-03-13 2004-05-11 Konica Corporation Extruding coating method and extruding coating apparatus
EP1136138A2 (de) * 2000-03-13 2001-09-26 Konica Corporation Extrusionsverfahren zum Beschichten und Extrusionsvorrichtung zum Beschichten
EP3446792A1 (de) * 2017-08-22 2019-02-27 The Procter & Gamble Company Verfahren und vorrichtung zur anwendung eines superabsorbierenden immobilisators
WO2019040242A1 (en) * 2017-08-22 2019-02-28 The Procter & Gamble Company METHOD AND APPARATUS FOR THE APPLICATION OF SUPERABSORBENT IMMOBILIZER
US20220024101A1 (en) * 2020-07-21 2022-01-27 Building Materials Investment Corporation Method and apparatus for die coating a substrate with high viscosity materials
US11426915B2 (en) * 2020-07-21 2022-08-30 Bmic Llc Method and apparatus for die coating a substrate with high viscosity materials

Also Published As

Publication number Publication date
DE1546903A1 (de) 1969-12-18
GB1020902A (en) 1966-02-23

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