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GB2220165B - Coextrusion process and die - Google Patents

Coextrusion process and die

Info

Publication number
GB2220165B
GB2220165B GB8914629A GB8914629A GB2220165B GB 2220165 B GB2220165 B GB 2220165B GB 8914629 A GB8914629 A GB 8914629A GB 8914629 A GB8914629 A GB 8914629A GB 2220165 B GB2220165 B GB 2220165B
Authority
GB
United Kingdom
Prior art keywords
die
coextrusion process
coextrusion
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 - Fee Related
Application number
GB8914629A
Other versions
GB8914629D0 (en
GB2220165A (en
Inventor
Claude Dehennau
Marc Kerger
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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of GB8914629D0 publication Critical patent/GB8914629D0/en
Publication of GB2220165A publication Critical patent/GB2220165A/en
Application granted granted Critical
Publication of GB2220165B publication Critical patent/GB2220165B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
GB8914629A 1988-07-04 1989-06-26 Coextrusion process and die Expired - Fee Related GB2220165B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8809125A FR2633554B1 (en) 1988-07-04 1988-07-04 METHOD FOR PRODUCING, BY COEXTRUSION, AN LIGHTWEIGHT PIPE AND DIE FOR ITS PRODUCTION

Publications (3)

Publication Number Publication Date
GB8914629D0 GB8914629D0 (en) 1989-08-16
GB2220165A GB2220165A (en) 1990-01-04
GB2220165B true GB2220165B (en) 1992-07-01

Family

ID=9368123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8914629A Expired - Fee Related GB2220165B (en) 1988-07-04 1989-06-26 Coextrusion process and die

Country Status (10)

Country Link
AT (1) AT403778B (en)
BE (1) BE1006667A3 (en)
CH (1) CH680659A5 (en)
DE (1) DE3921853C2 (en)
ES (1) ES2015163A6 (en)
FR (1) FR2633554B1 (en)
GB (1) GB2220165B (en)
IT (1) IT1230889B (en)
NL (1) NL195010C (en)
PT (1) PT91013B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6827888B2 (en) * 2001-01-23 2004-12-07 Genpak Llc Polymeric foam sheet using ambient gas blowing agent via controlled expansion
CN102001173B (en) * 2010-12-02 2013-06-05 铜陵三佳科技股份有限公司 Co-extrusion die head for extruding profiled bars with co-extrusion surface
CN102922723A (en) * 2012-11-08 2013-02-13 苏州金纬机械制造有限公司 Molding pipe split-flow mold
CN106827449B (en) * 2017-01-20 2022-11-25 广东科志达机械科技有限公司 Film blowing device of film blowing machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1128809A (en) * 1965-10-28 1968-10-02 Monsanto Chemicals Foamed resins
US3497915A (en) * 1967-03-16 1970-03-03 Cupples Container Co Extrusion die
GB1225296A (en) * 1967-07-12 1971-03-17
GB1315585A (en) * 1970-05-29 1973-05-02 Armosig Assembly and process for manufacturing tubes of polyvinyl chloride and tubes obtained by the process
GB1370854A (en) * 1971-05-26 1974-10-16 Armosig Assembly and process for manufacturing tubes of pvc and tubes obtained by the process
US3899276A (en) * 1973-05-29 1975-08-12 Beloit Corp Annular extrusion die with back pressure control
EP0019564A1 (en) * 1979-05-10 1980-11-26 Société Generale de Canalisations SOGECAN Method and apparatus for the extrusion of plastic tubings with composite walls

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE555596A (en) * 1956-03-22 1900-01-01
GB1211860A (en) * 1967-10-03 1970-11-11 Ici Ltd A process for the production of pipe
DE2126976A1 (en) * 1970-05-29 1972-01-20 Armosig Extrusion press - with section of constant diameter to allow foaming action to stabilise
US4057610A (en) * 1975-07-25 1977-11-08 Monsanto Company Hose reinforced with discontinuous fibers oriented in the radial direction
DE2610972C2 (en) * 1976-03-16 1984-04-12 Erich 7326 Heiningen Oprach Device for the production of pipes or similar hollow strands made of thermoplastic material
FR2427897A1 (en) * 1978-06-09 1980-01-04 Pont A Mousson Pipe extrusion die allowing sudden wall thickness variation - by adjustment of the melt volume of a die receiving melt at a constant rate
FR2494180A1 (en) * 1980-11-19 1982-05-21 Comp Generale Electricite Making plastic profiles or sheet - with enhanced transverse thermal conductivity, by extrusion via an annular choke to reorientate conductive fillers
DE3233250A1 (en) * 1982-09-08 1984-03-08 Basf Ag, 6700 Ludwigshafen DEVICE FOR EXTRUDING THERMOPLASTIC PLASTICS

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1128809A (en) * 1965-10-28 1968-10-02 Monsanto Chemicals Foamed resins
US3497915A (en) * 1967-03-16 1970-03-03 Cupples Container Co Extrusion die
GB1225296A (en) * 1967-07-12 1971-03-17
GB1315585A (en) * 1970-05-29 1973-05-02 Armosig Assembly and process for manufacturing tubes of polyvinyl chloride and tubes obtained by the process
GB1370854A (en) * 1971-05-26 1974-10-16 Armosig Assembly and process for manufacturing tubes of pvc and tubes obtained by the process
US3899276A (en) * 1973-05-29 1975-08-12 Beloit Corp Annular extrusion die with back pressure control
EP0019564A1 (en) * 1979-05-10 1980-11-26 Société Generale de Canalisations SOGECAN Method and apparatus for the extrusion of plastic tubings with composite walls

Also Published As

Publication number Publication date
BE1006667A3 (en) 1994-11-16
CH680659A5 (en) 1992-10-15
DE3921853C2 (en) 1999-04-08
ES2015163A6 (en) 1990-08-01
ATA149589A (en) 1997-10-15
GB8914629D0 (en) 1989-08-16
AT403778B (en) 1998-05-25
FR2633554B1 (en) 1990-10-19
DE3921853A1 (en) 1990-01-11
PT91013B (en) 1994-06-30
GB2220165A (en) 1990-01-04
FR2633554A1 (en) 1990-01-05
IT8920940A0 (en) 1989-06-21
NL195010C (en) 2003-06-10
NL8901687A (en) 1990-02-01
IT1230889B (en) 1991-11-08
PT91013A (en) 1990-02-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050626