GB1243108A - Manufacturing plastics sheet - Google Patents

Manufacturing plastics sheet

Info

Publication number
GB1243108A
GB1243108A GB57691/69A GB5769169A GB1243108A GB 1243108 A GB1243108 A GB 1243108A GB 57691/69 A GB57691/69 A GB 57691/69A GB 5769169 A GB5769169 A GB 5769169A GB 1243108 A GB1243108 A GB 1243108A
Authority
GB
United Kingdom
Prior art keywords
rolls
sheet
leaving
temperature
roll
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
GB57691/69A
Inventor
Hiroyuki Koda
Kunio Hamaya
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.)
Mitsubishi Edogawa Kagaku KK
Original Assignee
Mitsubishi Edogawa Kagaku KK
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 Mitsubishi Edogawa Kagaku KK filed Critical Mitsubishi Edogawa Kagaku KK
Publication of GB1243108A publication Critical patent/GB1243108A/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
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1,243,108. Rolling extruded polycarbonate sheet. MITSUBISHI EDOGAWA KAGAKU K.K. 25 Nov., 1969 [4 Dec., 1968], No. 57691/69. Heading B5A. [Also in Division B6] Melt extruded polycarbonate, or copolycarbonate, sheet material is pressed between at least a pair of rolls, the surface temperatures whereof are in the range of 155‹ to 190‹ C., preferably 160-170‹ C., and the sheet leaving the rolls being at 160-250‹ C. The material has a glass transition temperature of 130‹ to 180‹ C. and is prepared by condensation of a carbonic acid derivative with dihydric phenols, alcohols and mixtures thereof, and may contain additives including fillers such as glass fibres asbestos, molybdenum disulphide, graphite, or polytetrafluorethylene powder. With roll temperatures of 155-159‹ C., the sheet leaving the rolls should be at a temperature higher than 210‹ C., and with roll temperatures of 171-190‹ C., the leaving sheet temperature should be less than 210‹ C. The rolls may comprise a vertical three roll passage, they may perform a polishing function when they rotate at different speeds, or the rolls may have embossed or matted surfaces. A preferred polycarbonate comprises 4,4<SP>1</SP>- dioxydiphenyl - 2,2 - propane, extruded through a vented extruder. The surface temperature of adjacent rolls preferably differs by at least 2‹ C.
GB57691/69A 1968-12-04 1969-11-25 Manufacturing plastics sheet Expired GB1243108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43088353A JPS5125450B1 (en) 1968-12-04 1968-12-04

Publications (1)

Publication Number Publication Date
GB1243108A true GB1243108A (en) 1971-08-18

Family

ID=13940439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57691/69A Expired GB1243108A (en) 1968-12-04 1969-11-25 Manufacturing plastics sheet

Country Status (3)

Country Link
JP (1) JPS5125450B1 (en)
DE (1) DE1960761A1 (en)
GB (1) GB1243108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500603A (en) * 1979-08-02 1985-02-19 Celanese Corporation Electrical grade extruded filled thermoplastic sheet material and process for the manufacture thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1132049B (en) * 1979-08-02 1986-06-25 Celanese Corp THERMOPLASTIC SHEET MATERIAL EQUIPPED WITH ELECTRIC EXTRUSION FILLING SUBSTANCES AND PROCEDURE FOR ITS MANUFACTURE
US5075060A (en) * 1988-11-16 1991-12-24 Canon Kabushiki Kaisha Process for producing a substrate sheet for an optical recording medium
JP2932731B2 (en) * 1991-03-01 1999-08-09 宇部興産株式会社 Method for producing single-layer polycarbonate sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500603A (en) * 1979-08-02 1985-02-19 Celanese Corporation Electrical grade extruded filled thermoplastic sheet material and process for the manufacture thereof

Also Published As

Publication number Publication date
DE1960761A1 (en) 1970-06-18
JPS5125450B1 (en) 1976-07-31

Similar Documents

Publication Publication Date Title
AU579021B2 (en) Process for the preparation of blown film and oriented film
BE902569A (en) LOW TEMPERATURE STRATIFIABLE POLYURETHANE PROCESS AND RELATED ARTICLES.
KR920003995A (en) Method of imparting antithrombogenic and / or anti-infectivity to the surface of the substrate
IT8124798A0 (en) THERMOPLASTIC COMPOSITION BASED ON POLYVINYL ALCOHOL SUITABLE TO BE SUBJECTED AS SUCH TO COMMON HOT FORMING METHODS OF THERMOPLASTIC MATERIALS, SUCH AS MOLDING AND EXTRUSION, FOR THE PRODUCTION OF PRODUCTS AND PRODUCTS PRODUCED SO.
ES385185A1 (en) Composite material consisting a glass and plastics film
GB1243108A (en) Manufacturing plastics sheet
ES2005950A6 (en) Process for the manufacture of a window section or similar with a sealing element, as well as a window section and device for the manufacture of same.
GB1309559A (en) Bearing compositions
GB1469526A (en) Polymer materials
GB593961A (en) Improvements in or relating to roll type closures
GB995591A (en) Packaging film and a method for its preparation
GB1347560A (en) Method for the production of composite bodies and composite bodies produced by the method
CH549622A (en) PLASTIC-CONTAINING POWDERS, THEIR USE FOR THE PRODUCTION OF PURE POWDER AND MANUFACTURING METHODS FOR PLASTIC-CONTAINING POWDERS.
WO1987007871A1 (en) Powder compression molding machine
US737707A (en) Glass facing-tile, &amp;c.
GB816495A (en) A method of and apparatus for continuously rolling constructional elements from molten material
GB1157457A (en) Process for the Production of a Porous Sheet.
GB1307399A (en) Inorganic-organo titanate compositions and process for providing the same
EP0317712A3 (en) Method of manufacturing light-dispersive materials and products on an industrial scale
GB1508202A (en) Pressure shaping of thermoplastic high molecular weight materials
JPS5722012A (en) Production of thermally formed article
JPS5695642A (en) Manufacture of flooring material
GB1310984A (en) Self-aligning bearing
FR1303761A (en) Plain bearing, material for its constitution and its manufacturing process
GB1473718A (en) Production of glass articles