FR2364752A1 - METHOD OF MANUFACTURING A POLYPROPYLENE SHEET WITH A RUGGED SURFACE - Google Patents

METHOD OF MANUFACTURING A POLYPROPYLENE SHEET WITH A RUGGED SURFACE

Info

Publication number
FR2364752A1
FR2364752A1 FR7728277A FR7728277A FR2364752A1 FR 2364752 A1 FR2364752 A1 FR 2364752A1 FR 7728277 A FR7728277 A FR 7728277A FR 7728277 A FR7728277 A FR 7728277A FR 2364752 A1 FR2364752 A1 FR 2364752A1
Authority
FR
France
Prior art keywords
polypropylene sheet
degrees
manufacturing
order
casting
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
FR7728277A
Other languages
French (fr)
Other versions
FR2364752B1 (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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of FR2364752A1 publication Critical patent/FR2364752A1/en
Application granted granted Critical
Publication of FR2364752B1 publication Critical patent/FR2364752B1/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
    • 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • 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
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip

Abstract

Procédé de fabrication d'une feuille en polypropylène, biaxialement étirée et présentant une rugosité améliorée, qui consiste à extruder, à l'aide d'une filière plate, un mélange fondu de polypropylène ou d'un copolymère de propylène et d'une autre alpha -oléfine, puis à diriger ce produit sur un cylindre refroidisseur en vue de constituer ainsi une préforme solide, orthogonalement étirée, éventuellement thermofixée, caractérisé en ce que, pour réaliser la préforme, c'est-à-dire au moment de la coulée du mélange fondu, on règle la température de cristallisation du polymère (t c ) à une température inférieure ou égale à 80 degrés C/sec. et le temps pendant lequel la température superficielle de la coulée évolue entre tc et (tc - 20 degrés C) à au moins 1/3 de seconde.A method of making a biaxially stretched polypropylene sheet with improved roughness by extruding, using a flat die, a molten blend of polypropylene or a copolymer of propylene and another alpha -olefin, then directing this product onto a cooling cylinder in order to thus constitute a solid preform, orthogonally stretched, optionally heat-set, characterized in that, in order to produce the preform, that is to say at the time of casting of the molten mixture, the polymer crystallization temperature (tc) is adjusted to a temperature less than or equal to 80 degrees C / sec. and the time during which the surface temperature of the casting changes between tc and (tc - 20 degrees C) at least 1/3 of a second.

FR7728277A 1976-09-20 1977-09-20 METHOD OF MANUFACTURING A POLYPROPYLENE SHEET WITH A RUGGED SURFACE Granted FR2364752A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11179576A JPS5337774A (en) 1976-09-20 1976-09-20 Method of producing roughened polypropylene film

Publications (2)

Publication Number Publication Date
FR2364752A1 true FR2364752A1 (en) 1978-04-14
FR2364752B1 FR2364752B1 (en) 1981-11-13

Family

ID=14570336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728277A Granted FR2364752A1 (en) 1976-09-20 1977-09-20 METHOD OF MANUFACTURING A POLYPROPYLENE SHEET WITH A RUGGED SURFACE

Country Status (5)

Country Link
JP (1) JPS5337774A (en)
DE (1) DE2740237C2 (en)
FI (1) FI63885C (en)
FR (1) FR2364752A1 (en)
GB (1) GB1586205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029119A2 (en) * 1979-10-19 1981-05-27 Hoechst Aktiengesellschaft Process for producing a rough electrically insulating foil of polypropylene

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851557C2 (en) * 1978-11-29 1982-04-01 Hoechst Ag, 6000 Frankfurt Biaxially stretched polypropylene composite film for use as an electrical insulating film
DE3070192D1 (en) * 1980-03-20 1985-03-28 Mitsubishi Rayon Co A method of producing a polypropylene film for electrical appliances
DE3029326A1 (en) * 1980-08-01 1982-02-18 Ero-Starkstrom Kondensatoren Gmbh, 8300 Landshut Impregnated winding capacitor
JPS57110280A (en) * 1980-12-27 1982-07-09 Sofuia Kk Method of controlling discharge of safe ball of pinball machine
DE3247998C2 (en) * 1982-12-24 1986-02-06 Hoechst Ag, 6230 Frankfurt Sealable, transparent polyolefinic multilayer film
JPS59211908A (en) * 1983-05-17 1984-11-30 株式会社東芝 Oil-filled film capacitor
JPS61103462A (en) * 1984-10-25 1986-05-21 株式会社　藤商事 Ball delivery mechanism of pinball game machine
JPS6245082U (en) * 1985-09-06 1987-03-18
DE3538701A1 (en) * 1985-10-31 1987-05-07 Hoechst Ag METHOD FOR PRODUCING AN ELECTRIC CAPACITOR WITH A LONG LIFETIME
DE3631232A1 (en) * 1986-09-13 1988-03-24 Hoechst Ag MULTILAYER FILM AS PARTITION FILM FOR PRODUCING DECORATIVE LAMINATE PANELS
JPH0639741Y2 (en) * 1987-08-31 1994-10-19 株式会社ニューギン Prize ball emission control device for pachinko machines
DE19622082C1 (en) * 1996-05-31 1997-11-20 Brueckner Maschbau Process for the preparation of a filler-containing printable polymer film
FI20055500A0 (en) * 2005-09-19 2005-09-19 Conenor Oy Method and apparatus for making plastic film
JP2015202662A (en) * 2014-04-16 2015-11-16 住友ベークライト株式会社 Production method of release film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184072A (en) * 1954-06-08 1959-07-16 Montedison Spa Process for the preparation of sheets of high linear polymers of alphaolefins with a high degree of crystallinity, and products obtained by this process
FR2118575A5 (en) * 1970-12-14 1972-07-28 Kalle Ag
DE2601810A1 (en) * 1975-02-28 1976-09-09 Gen Electric VEILING OR DARK POLYPROPYLENE FILM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264746B (en) * 1962-09-11 1968-03-28 Nihonbashi Muromachi Process for the production of thermoplastic plastic films with a rough surface
JPS5650691B2 (en) * 1973-11-01 1981-12-01
JPS5153253A (en) * 1974-11-01 1976-05-11 Matsushita Electric Ind Co Ltd

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184072A (en) * 1954-06-08 1959-07-16 Montedison Spa Process for the preparation of sheets of high linear polymers of alphaolefins with a high degree of crystallinity, and products obtained by this process
FR2118575A5 (en) * 1970-12-14 1972-07-28 Kalle Ag
DE2601810A1 (en) * 1975-02-28 1976-09-09 Gen Electric VEILING OR DARK POLYPROPYLENE FILM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029119A2 (en) * 1979-10-19 1981-05-27 Hoechst Aktiengesellschaft Process for producing a rough electrically insulating foil of polypropylene
EP0029119A3 (en) * 1979-10-19 1984-05-02 Hoechst Aktiengesellschaft Rough electrically insulating foil of polypropylene, and process for producing it

Also Published As

Publication number Publication date
JPS5337774A (en) 1978-04-07
GB1586205A (en) 1981-03-18
DE2740237A1 (en) 1978-03-23
FI63885B (en) 1983-05-31
FR2364752B1 (en) 1981-11-13
FI772746A (en) 1978-03-21
FI63885C (en) 1983-09-12
DE2740237C2 (en) 1982-08-26

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