GB1261397A - New sheet material and process and apparatus for the production thereof - Google Patents

New sheet material and process and apparatus for the production thereof

Info

Publication number
GB1261397A
GB1261397A GB07930/69A GB1793069A GB1261397A GB 1261397 A GB1261397 A GB 1261397A GB 07930/69 A GB07930/69 A GB 07930/69A GB 1793069 A GB1793069 A GB 1793069A GB 1261397 A GB1261397 A GB 1261397A
Authority
GB
United Kingdom
Prior art keywords
sheet
annular
chamber
april
polymer
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
GB07930/69A
Inventor
Ole-Bendt Rasmussen
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.)
Individual
Original Assignee
Individual
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 DK161468A external-priority patent/DK123876B/en
Application filed by Individual filed Critical Individual
Publication of GB1261397A publication Critical patent/GB1261397A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

1,261,397. Composite tubular films. O-B RASMUSSEN. 8 April, 1969 [8 April, 1968; 10 April, 1968; 11 June, 1968; 18 Sept., 1968 (2)], No. 17930/69. Headings B5A and B5B. Composite tubular film is made by introducing an extrudable, polymeric, material and a second extrudable material into an annular chamber 10 to form a fluid sheet comprising interspersed layers of the materials, the sheet being subjected, while travelling through the chamber to the annular extrusion slot 11, to the action of combing means 12 which rotate relative to one another around the axis of the chamber, and which act on opposite sides of the sheet. The materials may enter via slots 6, 7 giving a lamellated sheet, or via annular slots (16, 17, 18; Fig. 6) giving a laminated sheet. The second material is preferably softer than the polymer and is suitably present in a higher proportion in a central annular zone of the chamber than in other zones. A further polymer may be supplied as an outer layer. The polymer may be H.D. polyethylene, syndiotactic or isotactic polypropylene or PVC. The second material may be L.D. polyethylene, copolyethylene-propylene or atactic polypropylene. The teeth of the combing means may project more or less than halfway through the annular sheet and may be inclined forwards with respect to their direction of rotation. They are desirably counter-rotated. Fibrillation of the extruded product may be effected, preferably following extrusion-orientation.
GB07930/69A 1968-04-08 1969-04-08 New sheet material and process and apparatus for the production thereof Expired GB1261397A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DK156368 1968-04-08
DK161468A DK123876B (en) 1968-04-10 1968-04-10 Method for producing textile fabrics or textile-like materials and apparatus for carrying out the method.
DK271968 1968-06-11
DK447868 1968-09-18
DK447968 1968-09-18

Publications (1)

Publication Number Publication Date
GB1261397A true GB1261397A (en) 1972-01-26

Family

ID=27512867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB07930/69A Expired GB1261397A (en) 1968-04-08 1969-04-08 New sheet material and process and apparatus for the production thereof

Country Status (8)

Country Link
JP (1) JPS4922541B1 (en)
BE (1) BE731180A (en)
CH (1) CH491735A (en)
DE (1) DE1917866A1 (en)
GB (1) GB1261397A (en)
IL (1) IL31976A (en)
NL (1) NL6905402A (en)
SE (1) SE346734B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529996A1 (en) * 1974-07-05 1976-02-05 Rasmussen O B HIGH-STRENGTH LAMINATE MADE FROM THERMOPLASTIC POLYMERIZED FILMS AND METHOD FOR ITS PRODUCTION
US4420451A (en) 1974-07-05 1983-12-13 Rasmussen O B Method for film extrusion comprising rotary die parts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT382132B (en) * 1974-07-05 1987-01-12 Rasmussen O B METHOD FOR PRODUCING A STRENGTH-RESISTANT LAMINATE AND LAMINATE PRODUCED THEREOF

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529996A1 (en) * 1974-07-05 1976-02-05 Rasmussen O B HIGH-STRENGTH LAMINATE MADE FROM THERMOPLASTIC POLYMERIZED FILMS AND METHOD FOR ITS PRODUCTION
US4420451A (en) 1974-07-05 1983-12-13 Rasmussen O B Method for film extrusion comprising rotary die parts

Also Published As

Publication number Publication date
CH491735A (en) 1970-06-15
DE1917866A1 (en) 1969-10-16
BE731180A (en) 1969-09-15
NL6905402A (en) 1969-10-10
JPS4922541B1 (en) 1974-06-10
IL31976A0 (en) 1969-06-25
IL31976A (en) 1972-12-29
SE346734B (en) 1972-07-17

Similar Documents

Publication Publication Date Title
US3746607A (en) Sheet material
GB1333474A (en) Preparation of transversely fibrillated thermoplastic films
US3637906A (en) Oriented thermoplastic films and method of producing same
ES483946A1 (en) A process for extruding ethylene polymers.
AU473427B2 (en) Method of compounding thermoplastic polymer materials and fillers, andthe compounded products thereof
GB1278549A (en) Process and apparatus for producing multi-ply tubular plastics film by insufflation
GB1260836A (en) The manufacture of filaments, fibres and yarns by fibrillation of synthetic organic thermoplastic polymers, and the resulting products
GB1310474A (en) Reticulate sheet material
GB1261397A (en) New sheet material and process and apparatus for the production thereof
GB1526723A (en) Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet
GB1311085A (en)
US3608042A (en) Process for producing a film of splitfibre forming polymeric material
ES401037A1 (en) Continuous extrusion machine for manufacturing plastic nets
CH613658A5 (en) Stretched thermoplastic laminated film, process for the production thereof and use of the laminated film
GB1327586A (en) Preparation of films
CA1017486A (en) Arylaliphatic polymer wires, fibers and films and process for their manufacture
AU1347070A (en) Process forthe continuous production ofa layer of polymer material onthe surface ofa web of multilayer sheet material
IE34860L (en) Synthetic fibres by film fibrillation
GB1240661A (en) Method of producing filaments, fibres or fibre networks
GB1336869A (en) Cross-linked polymer articles
GB1315488A (en) Process for the production of laminated films
GB1290437A (en)
IT1023152B (en) PROCESS FOR THE PRODUCTION OF MODIFIED ALKHENE POLYMERS PARTICULARLY SUITABLE FOR EXTRUSION AND BLOWING AND RELATED PRODUCT
GB1330510A (en) Synthetic paper and process for producing the same
GB1239910A (en) Extruded polymeric materials in sheet, filamentary or fibrous form and their production