GB1140175A - Method of and apparatus for producing thermoplastic sheeting - Google Patents

Method of and apparatus for producing thermoplastic sheeting

Info

Publication number
GB1140175A
GB1140175A GB13428/67A GB1342867A GB1140175A GB 1140175 A GB1140175 A GB 1140175A GB 13428/67 A GB13428/67 A GB 13428/67A GB 1342867 A GB1342867 A GB 1342867A GB 1140175 A GB1140175 A GB 1140175A
Authority
GB
United Kingdom
Prior art keywords
curtain
copolymers
roll
carrying surface
chill
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
GB13428/67A
Inventor
Charles Harry Stanley
David Samuel Hargis
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1140175A publication Critical patent/GB1140175A/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
    • B29C48/25—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
    • B29C48/9175—Cooling of flat articles, e.g. using specially adapted supporting means by interposing a fluid layer between the supporting means and the flat article
    • 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
    • B29C48/88—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

Abstract

1,140,175. Casting thermoplastic films. EASTMAN KODAK CO. 22 March, 1967 [23 March, 1966], No. 13428/67. Heading B5B. Films of thermoplastics are made by extruding a curtain of thermoplastic material in a substantially fluid condition and of substantially uniform cross-section on to a carrying surface which moves so as to advance the extruded, curtain away from the source of extrusion, there being included between the curtain and the carrying surface a film of a liquid heat transfer medium which is of such thickness that a visible wetting line occurs between the curtain and the carrying Surface. The surface is suitably an unglazed chill-roll, which is wetted prior to casting thereon by means of a coating device which extends transversely across the roll and which applies an atomized liquid or vapour (see Fig. 1, not shown) which condenses on the chill-roll, which itself may be hollow to allow circulation of a cooling liquid. A list of suitable heat transfer liquids is given; water is preferred, and it may contain a wetting agent, of which a list is also given. Suitable thermoplastics are polyolefins (exemplified), polyvinyl acetate and copolymers, polyvinylidene chloride and copolymers, polyamides, polyesters, cellulose esters and ethers, polystyrene and copolymers, ABS rubbers, polyacetals, polycarbonates and rubber hydrochlorides.
GB13428/67A 1966-03-23 1967-03-02 Method of and apparatus for producing thermoplastic sheeting Expired GB1140175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53668866A 1966-03-23 1966-03-23

Publications (1)

Publication Number Publication Date
GB1140175A true GB1140175A (en) 1969-01-15

Family

ID=24139510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13428/67A Expired GB1140175A (en) 1966-03-23 1967-03-02 Method of and apparatus for producing thermoplastic sheeting

Country Status (1)

Country Link
GB (1) GB1140175A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037844A1 (en) * 1980-04-16 1981-10-21 Erich Pagendarm Process and apparatus for heat exchange between a web and its moving support
JPS5863415A (en) * 1981-10-13 1983-04-15 Teijin Ltd Quenching device for melted polymer sheet
US5076976A (en) * 1988-06-23 1991-12-31 Toray Industries, Inc. Process for producing polyester film
EP2520409A1 (en) * 2011-05-03 2012-11-07 Reifenhäuser GmbH & Co. KG Maschinenfabrik Method and device for producing a film with markings

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037844A1 (en) * 1980-04-16 1981-10-21 Erich Pagendarm Process and apparatus for heat exchange between a web and its moving support
EP0038084A1 (en) * 1980-04-16 1981-10-21 Erich Pagendarm Method of treating a solid web
JPS5863415A (en) * 1981-10-13 1983-04-15 Teijin Ltd Quenching device for melted polymer sheet
JPS634492B2 (en) * 1981-10-13 1988-01-29 Teijin Ltd
US5076976A (en) * 1988-06-23 1991-12-31 Toray Industries, Inc. Process for producing polyester film
EP2520409A1 (en) * 2011-05-03 2012-11-07 Reifenhäuser GmbH & Co. KG Maschinenfabrik Method and device for producing a film with markings
CN102765196A (en) * 2011-05-03 2012-11-07 莱芬豪舍机器制造公司 Method and device for producing a film with markings

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