GB1261397A - New sheet material and process and apparatus for the production thereof - Google Patents
New sheet material and process and apparatus for the production thereofInfo
- 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
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.
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 | ||
DK447968 | 1968-09-18 | ||
DK447868 | 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)
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)
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 |
-
1969
- 1969-04-07 IL IL31976A patent/IL31976A/en unknown
- 1969-04-08 CH CH530469A patent/CH491735A/en not_active IP Right Cessation
- 1969-04-08 GB GB07930/69A patent/GB1261397A/en not_active Expired
- 1969-04-08 DE DE19691917866 patent/DE1917866A1/en active Pending
- 1969-04-08 SE SE04889/69A patent/SE346734B/xx unknown
- 1969-04-08 JP JP44027150A patent/JPS4922541B1/ja active Pending
- 1969-04-08 BE BE731180D patent/BE731180A/xx unknown
- 1969-04-08 NL NL6905402A patent/NL6905402A/xx unknown
Cited By (2)
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 |
---|---|
BE731180A (en) | 1969-09-15 |
DE1917866A1 (en) | 1969-10-16 |
IL31976A (en) | 1972-12-29 |
NL6905402A (en) | 1969-10-10 |
SE346734B (en) | 1972-07-17 |
JPS4922541B1 (en) | 1974-06-10 |
CH491735A (en) | 1970-06-15 |
IL31976A0 (en) | 1969-06-25 |
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 | |
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 | |
US4863778A (en) | Products, processes and use | |
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 | |
JPS5878730A (en) | Method and device for manufacturing laminate sheet | |
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 | |
IT1004173B (en) | PROCESS FOR THE PRODUCTION OF HIGH MOLECULAR WEIGHT IMMIDE POLYAMIDE POLYMERS AND PRODUCT OBTAINED IN PARTICULAR FORM OF FILM, FIBER COVERING OR ADHESIVE MATERIAL |