FR1154035A - Improvements in methods and apparatus for forming tubes or multilayer sheets of thermoplastic material - Google Patents

Improvements in methods and apparatus for forming tubes or multilayer sheets of thermoplastic material

Info

Publication number
FR1154035A
FR1154035A FR1154035DA FR1154035A FR 1154035 A FR1154035 A FR 1154035A FR 1154035D A FR1154035D A FR 1154035DA FR 1154035 A FR1154035 A FR 1154035A
Authority
FR
France
Prior art keywords
methods
thermoplastic material
multilayer sheets
forming tubes
tubes
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
Other languages
French (fr)
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.)
Plax Corp
Original Assignee
Plax 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 Plax Corp filed Critical Plax Corp
Application granted granted Critical
Publication of FR1154035A publication Critical patent/FR1154035A/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
    • B29C48/16—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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR1154035D 1956-06-26 1956-06-26 Improvements in methods and apparatus for forming tubes or multilayer sheets of thermoplastic material Expired FR1154035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1154035T 1956-06-26

Publications (1)

Publication Number Publication Date
FR1154035A true FR1154035A (en) 1958-04-01

Family

ID=9649104

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1154035D Expired FR1154035A (en) 1956-06-26 1956-06-26 Improvements in methods and apparatus for forming tubes or multilayer sheets of thermoplastic material

Country Status (1)

Country Link
FR (1) FR1154035A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065605A1 (en) * 1969-10-31 1971-07-30 Reifenhaeuser Kg
FR2421048A1 (en) * 1978-03-30 1979-10-26 Cincinnati Milacron Austria Homogeneous concentric two-layer PVC tubing - extruded from one single head with flow divider and temp. regulators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065605A1 (en) * 1969-10-31 1971-07-30 Reifenhaeuser Kg
FR2421048A1 (en) * 1978-03-30 1979-10-26 Cincinnati Milacron Austria Homogeneous concentric two-layer PVC tubing - extruded from one single head with flow divider and temp. regulators

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