FR2398593A1 - PROCESS FOR MANUFACTURING THIN-WALL ARTICLES FROM A THERMOPLASTIC CRYSTALLINE MATERIAL - Google Patents

PROCESS FOR MANUFACTURING THIN-WALL ARTICLES FROM A THERMOPLASTIC CRYSTALLINE MATERIAL

Info

Publication number
FR2398593A1
FR2398593A1 FR7821925A FR7821925A FR2398593A1 FR 2398593 A1 FR2398593 A1 FR 2398593A1 FR 7821925 A FR7821925 A FR 7821925A FR 7821925 A FR7821925 A FR 7821925A FR 2398593 A1 FR2398593 A1 FR 2398593A1
Authority
FR
France
Prior art keywords
crystalline material
articles
manufacturing thin
thermoplastic crystalline
manufacture
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.)
Granted
Application number
FR7821925A
Other languages
French (fr)
Other versions
FR2398593B1 (en
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.)
Bellaplast GmbH
Original Assignee
Bellaplast GmbH
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 Bellaplast GmbH filed Critical Bellaplast GmbH
Publication of FR2398593A1 publication Critical patent/FR2398593A1/en
Application granted granted Critical
Publication of FR2398593B1 publication Critical patent/FR2398593B1/fr
Granted 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
    • B29C51/422—Heating or cooling of preforms, specially adapted for thermoforming to produce a temperature differential
    • B29C51/423—Heating or cooling of preforms, specially adapted for thermoforming to produce a temperature differential through the thickness of the preform
    • 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
    • B29C48/03—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
    • B29C48/88—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
    • 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)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Perfectionnements à la fabrication par thermoformage d'articles à paroi mince en matière thermoplastique cristalline. On fait subir à la feuille à façonner, avant thermoformage, un conditionnement établissant sur son épaisseur un gradient thermique favorable d'une manière permettant d'éviter ou de contrôler le grossissement cristallin et, ainsi, les caractéristiques de l'article. Application à la fabrication d'articles tels que gobelets et assiettes en polyéthylène moyenne pression et basse pression en polypropylène isotactique et en copolymères éthylène-propylène.Improvements in the manufacture by thermoforming of thin-walled articles in crystalline thermoplastic material. The sheet to be shaped, before thermoforming, is subjected to a conditioning which establishes a favorable thermal gradient over its thickness in a manner which makes it possible to avoid or control the crystalline magnification and, thus, the characteristics of the article. Application to the manufacture of articles such as cups and plates in medium pressure and low pressure polyethylene in isotactic polypropylene and in ethylene-propylene copolymers.

FR7821925A 1977-07-25 1978-07-25 PROCESS FOR MANUFACTURING THIN-WALL ARTICLES FROM A THERMOPLASTIC CRYSTALLINE MATERIAL Granted FR2398593A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81887677A 1977-07-25 1977-07-25

Publications (2)

Publication Number Publication Date
FR2398593A1 true FR2398593A1 (en) 1979-02-23
FR2398593B1 FR2398593B1 (en) 1984-04-13

Family

ID=25226658

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7821924A Granted FR2398592A1 (en) 1977-07-25 1978-07-25 METHOD OF MANUFACTURING SHAPED WALL-WALL ARTICLES AT LOW THICKNESS IN THERMOPLASTIC CRYSTALLINE MATERIAL
FR7821925A Granted FR2398593A1 (en) 1977-07-25 1978-07-25 PROCESS FOR MANUFACTURING THIN-WALL ARTICLES FROM A THERMOPLASTIC CRYSTALLINE MATERIAL

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7821924A Granted FR2398592A1 (en) 1977-07-25 1978-07-25 METHOD OF MANUFACTURING SHAPED WALL-WALL ARTICLES AT LOW THICKNESS IN THERMOPLASTIC CRYSTALLINE MATERIAL

Country Status (13)

Country Link
JP (1) JPS5440870A (en)
AR (1) AR215724A1 (en)
AT (2) AT370671B (en)
BE (1) BE869217A (en)
CA (2) CA1114126A (en)
DE (2) DE2830740C2 (en)
ES (1) ES471997A1 (en)
FR (2) FR2398592A1 (en)
GB (2) GB2001576B (en)
IT (2) IT1097331B (en)
NL (2) NL7807832A (en)
SE (1) SE423878B (en)
ZA (2) ZA784184B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281895U (en) * 1975-12-16 1977-06-18
JPS56167411A (en) * 1980-05-30 1981-12-23 Mitsubishi Electric Corp Manufacture of synthetic resin molding
JPS57135110A (en) * 1981-02-16 1982-08-20 Toyo Seikan Kaisha Ltd Manufacture of multilayer plastic vessel
JPS595019A (en) * 1982-07-02 1984-01-11 Toppan Printing Co Ltd Manufacture of heat-resisting container
EP0133188A1 (en) * 1983-08-05 1985-02-20 Brückner Maschinenbau Gernot Brückner GmbH & Co. KG Process and apparatus for producing a hot-formed plastic composite
WO1985002142A1 (en) * 1983-11-11 1985-05-23 A.A.R.C. (Management) Pty. Limited Molten thermoplastic web feeding process and apparatus
DE3505828A1 (en) * 1985-02-20 1987-01-22 Benecke Gmbh J METHOD FOR THE PRODUCTION OF MOLDED PLASTIC ELEMENTS, AND THERMOFORMING DEVICE SUITABLE FOR THIS
DE68915978T2 (en) * 1988-12-27 1994-09-22 Idemitsu Petrochemical Co Process for thermoforming an object from a thermoplastic film.
IE68430B1 (en) * 1990-08-12 1996-06-12 Polysheet Ireland Ltd A method and apparatus for forming an article of PET material
DE4116337C2 (en) * 1991-05-18 1994-01-27 Hatto Dipl Ing Hartnagel Process for producing thin-walled moldings from partially crystalline thermoplastic material, in particular polyolefin, such as polypropylene, by thermoforming, and device for carrying out this process
DE10327741A1 (en) * 2003-06-18 2005-01-13 Fagerdala Deutschland Gmbh Swiveling vehicle sun visor manufacture involves heating extruded polypropylene foam sheet to a specific temperature, press molding while applying vacuum and cutting shells from sheet
JP6493275B2 (en) * 2016-03-31 2019-04-03 東洋紡株式会社 Cavity-containing heat-shrinkable polyester film
DE102016120339A1 (en) * 2016-10-25 2018-04-26 Prominent Gmbh Process for the preparation of a shaped membrane

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042972A (en) * 1960-06-24 1962-07-10 Koppers Co Inc Process of manufacturing articles having outer foamed portions
FR1549532A (en) * 1967-11-02 1968-12-13
FR2160999A1 (en) * 1971-11-24 1973-07-06 Continental Oil Co
FR2204496A1 (en) * 1972-10-25 1974-05-24 Bellaplast Gmbh In line thermoforming thin walled plastics articles - from band with cooled surface skin but hot core, avoids marks on finished product
FR2231494A1 (en) * 1973-06-04 1974-12-27 Bellaplast Gmbh
FR2243063A1 (en) * 1973-09-06 1975-04-04 Bellaplast Gmbh Thermoforming press for plastic strip - with pre-cooling tools permitting faster cooling of underformed zones
FR2289320A1 (en) * 1974-10-31 1976-05-28 Standard Oil Co IMPROVEMENTS IN PROCESSES FOR THE PRODUCTION OF CONTAINERS IN POLY (ETHYLENE TEREPHTHALATE) ORIENT
US4039609A (en) * 1972-10-25 1977-08-02 Bellaplast Gmbh Method for the manufacture of thin-walled shaped articles of thermoplastic material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH258231A (en) * 1946-04-13 1948-11-30 Durazzo Santos Paul Space heater.
US2642627A (en) * 1950-10-27 1953-06-23 Julius W Mann Method of heating the interior of plastic preforms
BE775844A (en) * 1970-12-04 1972-05-26 Shell Int Research
US3934743A (en) * 1972-12-29 1976-01-27 American Can Company Blow molded, oriented plastic bottle and method for making same
US3786221A (en) * 1973-03-29 1974-01-15 American Can Co Method for heat treating a polar, dielectric parison

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042972A (en) * 1960-06-24 1962-07-10 Koppers Co Inc Process of manufacturing articles having outer foamed portions
FR1549532A (en) * 1967-11-02 1968-12-13
FR2160999A1 (en) * 1971-11-24 1973-07-06 Continental Oil Co
FR2204496A1 (en) * 1972-10-25 1974-05-24 Bellaplast Gmbh In line thermoforming thin walled plastics articles - from band with cooled surface skin but hot core, avoids marks on finished product
US4039609A (en) * 1972-10-25 1977-08-02 Bellaplast Gmbh Method for the manufacture of thin-walled shaped articles of thermoplastic material
FR2231494A1 (en) * 1973-06-04 1974-12-27 Bellaplast Gmbh
FR2243063A1 (en) * 1973-09-06 1975-04-04 Bellaplast Gmbh Thermoforming press for plastic strip - with pre-cooling tools permitting faster cooling of underformed zones
FR2289320A1 (en) * 1974-10-31 1976-05-28 Standard Oil Co IMPROVEMENTS IN PROCESSES FOR THE PRODUCTION OF CONTAINERS IN POLY (ETHYLENE TEREPHTHALATE) ORIENT

Also Published As

Publication number Publication date
BE869217A (en) 1979-01-24
FR2398592B1 (en) 1984-04-20
AT370671B (en) 1983-04-25
ES471997A1 (en) 1979-02-16
IT1097332B (en) 1985-08-31
DE2830788A1 (en) 1979-02-15
IT1097331B (en) 1985-08-31
JPS5440870A (en) 1979-03-31
AR215724A1 (en) 1979-10-31
ZA784183B (en) 1979-07-25
IT7826035A0 (en) 1978-07-24
GB2001576B (en) 1982-03-03
ZA784184B (en) 1979-07-25
GB2001577A (en) 1979-02-07
NL7807832A (en) 1979-01-29
IT7826034A0 (en) 1978-07-24
ATA508778A (en) 1982-09-15
NL7807831A (en) 1979-01-29
FR2398593B1 (en) 1984-04-13
SE423878B (en) 1982-06-14
ATA508878A (en) 1982-09-15
DE2830740C2 (en) 1985-11-07
GB2001577B (en) 1982-01-13
DE2830740A1 (en) 1979-02-15
FR2398592A1 (en) 1979-02-23
AT370672B (en) 1983-04-25
GB2001576A (en) 1979-02-07
SE7807756L (en) 1979-01-26
CA1114125A (en) 1981-12-15
CA1114126A (en) 1981-12-15

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ST Notification of lapse
ST Notification of lapse
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