GB2384746B - Methods of and apparatus for making a corrugation-free foam - Google Patents

Methods of and apparatus for making a corrugation-free foam

Info

Publication number
GB2384746B
GB2384746B GB0310584A GB0310584A GB2384746B GB 2384746 B GB2384746 B GB 2384746B GB 0310584 A GB0310584 A GB 0310584A GB 0310584 A GB0310584 A GB 0310584A GB 2384746 B GB2384746 B GB 2384746B
Authority
GB
United Kingdom
Prior art keywords
corrugation
making
methods
free foam
foam
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
GB0310584A
Other versions
GB2384746A (en
GB0310584D0 (en
Inventor
Wayne J Myer
Blaine M Kelley
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.)
Dart Container Corp
Original Assignee
Dart Container Corp
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 Dart Container Corp filed Critical Dart Container Corp
Priority to GB0318265A priority Critical patent/GB2388070B/en
Priority claimed from GB9925473A external-priority patent/GB2343138B/en
Publication of GB0310584D0 publication Critical patent/GB0310584D0/en
Publication of GB2384746A publication Critical patent/GB2384746A/en
Application granted granted Critical
Publication of GB2384746B publication Critical patent/GB2384746B/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
    • B29C48/022—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
    • B29C48/09—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
    • B29C48/03—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
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB0310584A 1998-10-28 1999-10-28 Methods of and apparatus for making a corrugation-free foam Expired - Fee Related GB2384746B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0318265A GB2388070B (en) 1998-10-28 1999-10-28 Thermoplastic corrugation-free foam

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10593298P 1998-10-28 1998-10-28
GB9925473A GB2343138B (en) 1998-10-28 1999-10-28 Apparatus for making a corrugation-free foam

Publications (3)

Publication Number Publication Date
GB0310584D0 GB0310584D0 (en) 2003-06-11
GB2384746A GB2384746A (en) 2003-08-06
GB2384746B true GB2384746B (en) 2003-10-15

Family

ID=26316031

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0310584A Expired - Fee Related GB2384746B (en) 1998-10-28 1999-10-28 Methods of and apparatus for making a corrugation-free foam
GB0310586A Expired - Fee Related GB2385554B (en) 1998-10-28 1999-10-28 Process for making a corrugation-free foam
GB0310585A Expired - Fee Related GB2385553B (en) 1998-10-28 1999-10-28 Method for making a corrugation-free foam and foams made by the method

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB0310586A Expired - Fee Related GB2385554B (en) 1998-10-28 1999-10-28 Process for making a corrugation-free foam
GB0310585A Expired - Fee Related GB2385553B (en) 1998-10-28 1999-10-28 Method for making a corrugation-free foam and foams made by the method

Country Status (1)

Country Link
GB (3) GB2384746B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0740418A (en) * 1993-07-27 1995-02-10 Sekisui Plastics Co Ltd Mold for thermoplastic resin extruded foam
US5753717A (en) * 1994-03-30 1998-05-19 Aci Operations Pty Ltd. Plastics foam and method of manufacturing same
US5762848A (en) * 1993-04-13 1998-06-09 Sencorp Systems, Inc. Method of adjusting choke gap of plastic extruder apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711623A (en) * 1986-05-13 1987-12-08 Mobil Oil Corporation Annular extrusion die with internal choke ring and spider mandrel
US5120481A (en) * 1989-02-28 1992-06-09 U.C. Industries, Inc. Process for preparing extruded foam bodies
US5250577A (en) * 1989-08-02 1993-10-05 The Dow Chemical Company Polystyrene foam made with only carbon dioxide as a blowing agent and a process for making the same
US5266605A (en) * 1989-08-02 1993-11-30 The Dow Chemical Company Polystyrene foam made with only carbon dioxide as a blowing agent and a process for making the same
US5340844A (en) * 1992-04-24 1994-08-23 The Dow Chemical Company Polystyrene foam and a process for making the same
US5274005A (en) * 1992-06-09 1993-12-28 The Dow Chemical Company Low density styrene polymer foams and process for preparing same
US5288740A (en) * 1992-10-23 1994-02-22 The Dow Chemical Company Process for making alkenyl aromatic foam packing bodies with carbon dioxide and/or ethane blowing agent systems
US5269987A (en) * 1992-12-22 1993-12-14 Reedy Michael E Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby
US5389694A (en) * 1993-06-04 1995-02-14 The Dow Chemical Company Foamable styrenic polymer gel having a carbon dioxide blowing agent and a process for making a foam structure therefrom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762848A (en) * 1993-04-13 1998-06-09 Sencorp Systems, Inc. Method of adjusting choke gap of plastic extruder apparatus
JPH0740418A (en) * 1993-07-27 1995-02-10 Sekisui Plastics Co Ltd Mold for thermoplastic resin extruded foam
US5753717A (en) * 1994-03-30 1998-05-19 Aci Operations Pty Ltd. Plastics foam and method of manufacturing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PRIOR ART AS PROVIDED BY FIGURES 1 AND 2 OF THE INSTANT APPLICATION *

Also Published As

Publication number Publication date
GB0310586D0 (en) 2003-06-11
GB0310585D0 (en) 2003-06-11
GB2384746A (en) 2003-08-06
GB2385553A (en) 2003-08-27
GB2385554B (en) 2003-10-15
GB2385553B (en) 2003-10-15
GB0310584D0 (en) 2003-06-11
GB2385554A (en) 2003-08-27

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Legal Events

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

Effective date: 20181028