FR1369338A - Process for the manufacture of thermoplastic sheet materials free from visible heterogeneities - Google Patents

Process for the manufacture of thermoplastic sheet materials free from visible heterogeneities

Info

Publication number
FR1369338A
FR1369338A FR919468A FR919468A FR1369338A FR 1369338 A FR1369338 A FR 1369338A FR 919468 A FR919468 A FR 919468A FR 919468 A FR919468 A FR 919468A FR 1369338 A FR1369338 A FR 1369338A
Authority
FR
France
Prior art keywords
heterogeneities
visible
manufacture
sheet materials
thermoplastic sheet
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
FR919468A
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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
Priority claimed from US162255A external-priority patent/US3197533A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Priority to FR919468A priority Critical patent/FR1369338A/en
Application granted granted Critical
Publication of FR1369338A publication Critical patent/FR1369338A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/106—Filtering
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
FR919468A 1961-12-26 1962-12-21 Process for the manufacture of thermoplastic sheet materials free from visible heterogeneities Expired FR1369338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR919468A FR1369338A (en) 1961-12-26 1962-12-21 Process for the manufacture of thermoplastic sheet materials free from visible heterogeneities

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US162255A US3197533A (en) 1961-12-26 1961-12-26 Gel and fish-eye reduction in thermoplastics
FR919468A FR1369338A (en) 1961-12-26 1962-12-21 Process for the manufacture of thermoplastic sheet materials free from visible heterogeneities

Publications (1)

Publication Number Publication Date
FR1369338A true FR1369338A (en) 1964-08-14

Family

ID=26199041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR919468A Expired FR1369338A (en) 1961-12-26 1962-12-21 Process for the manufacture of thermoplastic sheet materials free from visible heterogeneities

Country Status (1)

Country Link
FR (1) FR1369338A (en)

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