ES486241A1 - Procedimiento de fabricacion de hojas de materia plastica - Google Patents

Procedimiento de fabricacion de hojas de materia plastica

Info

Publication number
ES486241A1
ES486241A1 ES486241A ES486241A ES486241A1 ES 486241 A1 ES486241 A1 ES 486241A1 ES 486241 A ES486241 A ES 486241A ES 486241 A ES486241 A ES 486241A ES 486241 A1 ES486241 A1 ES 486241A1
Authority
ES
Spain
Prior art keywords
plastic material
substrate
pocket
zone
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
ES486241A
Other languages
English (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.)
Saint Gobain Industries SA
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Industries SA
Compagnie de Saint Gobain SA
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 Saint Gobain Industries SA, Compagnie de Saint Gobain SA filed Critical Saint Gobain Industries SA
Publication of ES486241A1 publication Critical patent/ES486241A1/es
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
    • B29C48/25—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
    • B29C48/9145—Endless cooling belts
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Sheet Holders (AREA)
  • Laminated Bodies (AREA)

Abstract

Procedimiento de fabricación de hojas de materia plástica, por colada de dicha materia plástica, o de una mezcla de sus componentes reactivos sobre un soporte plano móvil, caracterizado porque se forma sobre el soporte móvil, en la parte alta de la colada, un cordón de materia estable en el que toda la materia está en movimiento y sale libremente por la parte superior del cordón, particularmente en el sentido opuesto al de desenfilado del soporte, para ponerse en contacto con éste y ser arrastrado por él en el sentido del desenfilado y formar así la parte inferior de la capa que constituye la hoja, mientras que la materia que forma la parte central del cordón, comprendida entre la vena superior y la vena inferior, sale particularmente hacia los bordes de dicho cordón al mismo tiempo que se forma, en la parte baja de la colada, tangencialmente al cordón, una corriente directa de materia, de manera que forme la parte superior de la capa.
ES486241A 1978-11-23 1979-11-22 Procedimiento de fabricacion de hojas de materia plastica Expired ES486241A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833060A FR2442128A1 (fr) 1978-11-23 1978-11-23 Procede de fabrication de feuilles de matiere plastique

Publications (1)

Publication Number Publication Date
ES486241A1 true ES486241A1 (es) 1980-06-16

Family

ID=9215232

Family Applications (1)

Application Number Title Priority Date Filing Date
ES486241A Expired ES486241A1 (es) 1978-11-23 1979-11-22 Procedimiento de fabricacion de hojas de materia plastica

Country Status (21)

Country Link
US (1) US4283363A (es)
JP (1) JPS55105534A (es)
AT (1) AT385715B (es)
BE (1) BE880214A (es)
BR (1) BR7907592A (es)
CA (1) CA1133220A (es)
CH (1) CH636555A5 (es)
DE (1) DE2947348A1 (es)
DK (1) DK156418C (es)
ES (1) ES486241A1 (es)
FI (1) FI793662A7 (es)
FR (1) FR2442128A1 (es)
GB (1) GB2038228B (es)
IE (1) IE48988B1 (es)
IT (1) IT1165382B (es)
LU (1) LU81919A1 (es)
MX (1) MX151241A (es)
NL (1) NL7908541A (es)
NO (1) NO793789L (es)
SE (1) SE7909598L (es)
YU (1) YU43611B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536240A (en) * 1981-12-02 1985-08-20 Advanced Semiconductor Products, Inc. Method of forming thin optical membranes
FR2549037B1 (fr) * 1983-07-11 1985-10-18 Saint Gobain Vitrage Vitrage feuillete de securite
FR2549036B1 (fr) * 1983-07-11 1985-10-18 Saint Gobain Vitrage Vitrage feuillete de securite
FR2548956B1 (fr) * 1983-07-11 1985-10-18 Saint Gobain Vitrage Feuille en matiere plastique transparente de haute qualite optique
JPH067944B2 (ja) * 1985-10-18 1994-02-02 富士写真フイルム株式会社 塗布方法
EP0542635B1 (en) * 1991-10-15 1999-06-09 Eastman Kodak Company Magnetic dispersion coating method and apparatus having high shear regions
EP0781792B1 (en) 1995-12-28 2002-02-06 Asahi Glass Company Ltd. Cross-linked polyurethane resin sheet and laminated product employing it
US6375451B1 (en) * 2000-08-23 2002-04-23 The Boeing Company Tape casting machine with profiled doctor blade

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1921953A (en) * 1930-11-29 1933-08-08 Eastman Kodak Co Apparatus for making sheets or films
US2344603A (en) * 1940-08-03 1944-03-21 Czapek Emil Machine for making cellulose sheets and the like
BE560654A (es) * 1956-09-11 1900-01-01
US3038209A (en) * 1958-07-10 1962-06-12 Eastman Kodak Co Method of dope-casting film at high shear rate
US3849174A (en) * 1969-07-07 1974-11-19 Union Carbide Corp Calendering of laminated polymeric materials
US3658978A (en) * 1969-07-07 1972-04-25 Union Carbide Corp Calendering of polymeric materials
DE2458614C3 (de) * 1974-12-11 1979-10-25 Werner & Pfleiderer, 7000 Stuttgart Extruder-Kalander-Verbindung
DE2614596C3 (de) * 1976-04-05 1980-03-13 Vereinigte Glaswerke Gmbh, 5100 Aachen Abstreichgießkopf zum Aufbringen gießfähiger Kunststoffschichten auf plane Unterlagen

Also Published As

Publication number Publication date
DE2947348A1 (de) 1980-06-04
FR2442128B1 (es) 1981-06-26
CA1133220A (en) 1982-10-12
IE792236L (en) 1980-05-23
US4283363A (en) 1981-08-11
FI793662A7 (fi) 1981-01-01
GB2038228B (en) 1982-11-03
LU81919A1 (fr) 1980-06-05
JPH0336648B2 (es) 1991-06-03
MX151241A (es) 1984-10-24
NL7908541A (nl) 1980-05-28
ATA744079A (de) 1987-10-15
JPS55105534A (en) 1980-08-13
AT385715B (de) 1988-05-10
CH636555A5 (fr) 1983-06-15
DK156418C (da) 1990-01-22
IT1165382B (it) 1987-04-22
FR2442128A1 (fr) 1980-06-20
BR7907592A (pt) 1980-06-24
SE7909598L (sv) 1980-05-24
IT7927495A0 (it) 1979-11-22
NO793789L (no) 1980-05-27
IE48988B1 (en) 1985-07-10
YU43611B (en) 1989-08-31
YU285379A (en) 1982-10-31
GB2038228A (en) 1980-07-23
DK156418B (da) 1989-08-21
DE2947348C2 (es) 1989-02-16
BE880214A (fr) 1980-05-22
DK495579A (da) 1980-05-24

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000201