FR2095310A1 - Plastic sheet prodn - by extruding the plastic material - onto a roller system with two driven and one freely rotating roller - Google Patents

Plastic sheet prodn - by extruding the plastic material - onto a roller system with two driven and one freely rotating roller

Info

Publication number
FR2095310A1
FR2095310A1 FR7121813A FR7121813A FR2095310A1 FR 2095310 A1 FR2095310 A1 FR 2095310A1 FR 7121813 A FR7121813 A FR 7121813A FR 7121813 A FR7121813 A FR 7121813A FR 2095310 A1 FR2095310 A1 FR 2095310A1
Authority
FR
France
Prior art keywords
roller
driven
extruding
onto
freely rotating
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
FR7121813A
Other languages
French (fr)
Other versions
FR2095310B1 (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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2095310A1 publication Critical patent/FR2095310A1/en
Application granted granted Critical
Publication of FR2095310B1 publication Critical patent/FR2095310B1/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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Apparatus for producing thermoplastic films and sheets consists of a multiple roller system, at least the roller furthest from the source feeding the thermoplastic material to the system rotating freely while the other rollers are driven at equal velocities. The film or sheet is produced without the formation of wrinkles or undulations at an angle of 90 degrees to the direction of extrusion, as a result of the use of a freely rotating upper roller.
FR7121813A 1970-06-17 1971-06-16 Plastic sheet prodn - by extruding the plastic material - onto a roller system with two driven and one freely rotating roller Granted FR2095310A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2938070 1970-06-17

Publications (2)

Publication Number Publication Date
FR2095310A1 true FR2095310A1 (en) 1972-02-11
FR2095310B1 FR2095310B1 (en) 1974-03-22

Family

ID=10290640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7121813A Granted FR2095310A1 (en) 1970-06-17 1971-06-16 Plastic sheet prodn - by extruding the plastic material - onto a roller system with two driven and one freely rotating roller

Country Status (5)

Country Link
AU (1) AU2991471A (en)
BE (1) BE768679A (en)
DE (1) DE2129475A1 (en)
FR (1) FR2095310A1 (en)
NL (1) NL7108323A (en)

Also Published As

Publication number Publication date
BE768679A (en) 1971-12-17
NL7108323A (en) 1971-12-21
DE2129475A1 (en) 1971-12-23
AU2991471A (en) 1972-12-14
FR2095310B1 (en) 1974-03-22

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Legal Events

Date Code Title Description
ST Notification of lapse