GB1146549A - Casting a liquid composition - Google Patents

Casting a liquid composition

Info

Publication number
GB1146549A
GB1146549A GB33003/66A GB3300366A GB1146549A GB 1146549 A GB1146549 A GB 1146549A GB 33003/66 A GB33003/66 A GB 33003/66A GB 3300366 A GB3300366 A GB 3300366A GB 1146549 A GB1146549 A GB 1146549A
Authority
GB
United Kingdom
Prior art keywords
roll
liquid composition
casting
chambers
liquid
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
Application number
GB33003/66A
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
Publication of GB1146549A publication Critical patent/GB1146549A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/916—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means using vacuum
    • 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
    • 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
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulding By Coating Moulds (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,146,549. Film casting apparatus. EASTMAN KODAK CO. 22 July, 1966 [2 Aug., 1965], No. 33003/66. Heading B5B. In a process for casting a liquid composition into a thin sheet on coating a web or substrate the liquid composition is applied to a rotatable roll 15, from an extrusion die 10, the roll moving in the direction shown 16, and a pair of chambers, one of which 30, can form part of the extrusion die, and the other 35, can be part of a housing33, or both can be incorporated into the said housing, have openings which face the casting surface, the chambers being interconnected, and one of them 35, being connected to a vacuum source, said vacuum source serving to create a subatmospheric pressure on the side of the stream of the liquid that contacts the surface of the roll and so causing intimate contact between the liquid and the roll, thus enabling the roll speed to be increased without causing irregularities in the film produced. An adjustable baffle 47, regulates the amount of air which is drawn into the chambers, most of the air being drawn through the opening 36, of the chamber 35, to avoid vibration of the apparatus and consequent irregularities in the film. The pressure difference between the two sides of the liquid composition applied to the roll may range from 0À1 to 30À0 inches of water, the pressure on the side away from the roll surface normally being atmospheric. Thin films of polyolefins, polystyrene and polycarbonates may be produced and the invention is also applicable to the coating of a web of material which is moving past the point of application.
GB33003/66A 1965-08-02 1966-07-22 Casting a liquid composition Expired GB1146549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US476401A US3347962A (en) 1965-08-02 1965-08-02 Method and apparatus for casting a liquid composition

Publications (1)

Publication Number Publication Date
GB1146549A true GB1146549A (en) 1969-03-26

Family

ID=23891681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33003/66A Expired GB1146549A (en) 1965-08-02 1966-07-22 Casting a liquid composition

Country Status (4)

Country Link
US (1) US3347962A (en)
JP (1) JPS4936946B1 (en)
DE (1) DE1629393B1 (en)
GB (1) GB1146549A (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773452A (en) * 1970-05-12 1973-11-20 J Taga Apparatus for molding thermoplastic materials
US3735729A (en) * 1970-09-24 1973-05-29 Eastman Kodak Co Apparatus for coating a continuous web
US3852392A (en) * 1972-12-18 1974-12-03 Borden Inc Method of removing plasticizer mist from air
GB1469983A (en) * 1974-08-07 1977-04-14 Ici Ltd Polymeric film production
DE2614596C3 (en) * 1976-04-05 1980-03-13 Vereinigte Glaswerke Gmbh, 5100 Aachen Skimmer head for applying castable plastic layers on flat surfaces
FR2391835A1 (en) * 1976-08-27 1978-12-22 Ibm France Chill roll quenching of twin extruded polyolefin printing tapes - using interfacial vacuum to minimise the quenching cycle
CH621733A5 (en) * 1976-12-10 1981-02-27 Tetra Pak Dev
US4310295A (en) * 1981-01-28 1982-01-12 E. I. Du Pont De Nemours And Company Device for uniform web pinning
US4501712A (en) * 1982-08-20 1985-02-26 E. I. Du Pont De Nemours And Company Vacuum pinning of molten thermoplastic film to a roughened casting roll
DE3309343C2 (en) * 1983-03-16 1986-08-14 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Device for applying at least one casting layer
US4610745A (en) * 1985-02-01 1986-09-09 Kimberly-Clark Corporation Method and apparatus for applying hot melt pressure sensitive adhesive to a heat sensitive web
JPH0745181B2 (en) * 1987-04-01 1995-05-17 富士写真フイルム株式会社 Laminated product manufacturing method
US4867924A (en) * 1988-04-22 1989-09-19 The Budd Company Method and apparatus for compression molding under vacuum
US4988471A (en) * 1989-09-15 1991-01-29 Sano, Inc. Apparatus and method of forming a continuous layer of thermoplastic material
DE4012695C2 (en) * 1990-04-20 2001-08-02 Az Formen & Maschbau Gmbh Connective rubber extruder
FR2698580B1 (en) * 1992-12-01 1995-02-24 Albert Plastiques Device for pressing the film leaving a flat die onto a cooling cylinder.
US5607726A (en) * 1994-10-17 1997-03-04 E. I. Du Pont De Nemours And Company Process for the preparation of composite coatings with variable thickness
US5618568A (en) * 1995-02-01 1997-04-08 Extrusion Dies, Inc. Dual-chamber vacuum box
ID20180A (en) * 1997-04-21 1998-10-22 Mitsubishi Heavy Ind Ltd PRINTING EQUIPMENT FOR THE FORMATION OF MEMBRANE MADE FROM RESIN
JP3442985B2 (en) 1997-12-26 2003-09-02 三菱重工業株式会社 Casting equipment for resin thin film molding
US7011881B2 (en) * 2000-07-25 2006-03-14 Fuji Photo Film Co., Ltd. Polymer resin film and its production
JP2002160241A (en) * 2000-11-28 2002-06-04 Toray Ind Inc Apparatus and method for manufacturing resin film
US20060192317A1 (en) * 2005-02-25 2006-08-31 Paulson Jack E Method and apparatus for drying coated sheet material
CN101137482B (en) * 2005-03-07 2010-09-08 富士胶片株式会社 Method for casting solution
US9085104B2 (en) * 2011-07-20 2015-07-21 Nordson Corporation Sculpted extrusion die
US20160052191A1 (en) * 2014-08-20 2016-02-25 Tredegar Film Products Corporation Formed Films, Methods And Apparatus For Manufacturing Same, And Articles Comprising Same
KR20230017318A (en) 2015-07-10 2023-02-03 베리 글로벌 인코포레이티드 Microporous breathable film and method of making the microporous breathable film
MX2018005624A (en) * 2015-11-05 2018-09-05 Berry Global Inc Polymeric films and methods for making polymeric films.
US11472085B2 (en) 2016-02-17 2022-10-18 Berry Plastics Corporation Gas-permeable barrier film and method of making the gas-permeable barrier film

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE513714A (en) * 1951-08-23 1900-01-01
US2688155A (en) * 1953-03-16 1954-09-07 Eastman Kodak Co Apparatus and method for controlling the application of plastic material to casting surfaces of sheeting machines
US3112528A (en) * 1960-12-27 1963-12-03 Eastman Kodak Co Method and apparatus for prevention of slug formation in the casting of film support and sheeting
NL286635A (en) * 1962-12-10 1900-01-01

Also Published As

Publication number Publication date
DE1629393B1 (en) 1971-12-09
US3347962A (en) 1967-10-17
JPS4936946B1 (en) 1974-10-04

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