ES8706175A1 - Un procedimiento para eliminar sustancialmente la fractura superficial de la marca fundida durante la extension de un polimero de etileno. - Google Patents
Un procedimiento para eliminar sustancialmente la fractura superficial de la marca fundida durante la extension de un polimero de etileno.Info
- Publication number
- ES8706175A1 ES8706175A1 ES533761A ES533761A ES8706175A1 ES 8706175 A1 ES8706175 A1 ES 8706175A1 ES 533761 A ES533761 A ES 533761A ES 533761 A ES533761 A ES 533761A ES 8706175 A1 ES8706175 A1 ES 8706175A1
- Authority
- ES
- Spain
- Prior art keywords
- melt fracture
- substantially eliminating
- ethylene polymers
- surface melt
- eliminating surface
- 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
-
- 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
- B29C48/06—Rod-shaped
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/272—Cleaning; Purging; Avoiding contamination of dies
-
- 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
- B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
- B29C48/3003—Materials, coating or lining therefor
-
- 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
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
-
- 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
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0022—Bright, glossy or shiny surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/003—Tubular articles having irregular or rough surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paper (AREA)
Abstract
PROCEDIMIENTO PARA ELIMINAR LA FRACTURA SUPERFICIAL DE LA MASA FUNDIDA DURANTE LA EXTRUSION DE UN POLIMERO DE ETILENO. CONSISTE EN EXTRUIR EL POLIMERO (A) A TRAVES DE UNA ZONA ESTRECHA METALICA EN LA QUE EL POLIMERO MANTENGA UN CONTACTO ADHESIVO CON LAS PAREDES DE DICHA ZONA DE MODO QUE LA ADHESION SE PRODUZCA DURANTE UNA EXTENSION SUFICIENTE PARA ELIMINAR SUSTANCIALMENTE LA FRACTURA SUPERFICIAL DE LA MASA FUNDIDA DURANTE LA EXTRUSION, LA CUAL SE PRODUCE A TRAVES DE UNA BOQUILLA (10) CON UNA REGION PARALELA QUE DEFINE SUPERFICIES OPUESTAS (22, 22K), Y CON AL MENOS UNA DE LAS SUPERFICIES COMPUESTA DE UNA DETERMINADA ALEACION.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50866783A | 1983-06-28 | 1983-06-28 | |
US06/508,668 US4522776A (en) | 1983-06-28 | 1983-06-28 | Process for substantially eliminating surface melt fracture when extruding ethylene polymers |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8706175A1 true ES8706175A1 (es) | 1987-06-01 |
ES533761A0 ES533761A0 (es) | 1987-06-01 |
Family
ID=27056266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES533761A Expired ES8706175A1 (es) | 1983-06-28 | 1984-06-27 | Un procedimiento para eliminar sustancialmente la fractura superficial de la marca fundida durante la extension de un polimero de etileno. |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0133213B1 (es) |
JP (1) | JPS60501702A (es) |
AU (1) | AU565764B2 (es) |
CA (1) | CA1210918A (es) |
CS (1) | CS268663B2 (es) |
DE (1) | DE3481286D1 (es) |
DK (1) | DK163869C (es) |
ES (1) | ES8706175A1 (es) |
FI (1) | FI83487C (es) |
GR (1) | GR81444B (es) |
IL (1) | IL72236A (es) |
IN (1) | IN162111B (es) |
NO (1) | NO850767L (es) |
WO (1) | WO1985000137A1 (es) |
ZA (1) | ZA844926B (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8430508U1 (de) * | 1984-10-17 | 1985-02-28 | Windmöller & Hölscher, 4540 Lengerich | Extrusionsduese fuer einen blaskopf zur herstellung von kunststoffblasfolien |
HUT48518A (en) * | 1987-06-03 | 1989-06-28 | Zoltan Balajthy | Process for facilitating processing of thermoplastic polymers |
CN102729447B (zh) * | 2012-06-02 | 2014-07-02 | 安徽国通高新管业股份有限公司 | 聚乙烯给水管生产线加工控制方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2082618A (en) * | 1935-01-30 | 1937-06-01 | Du Pont | Extrusion device |
GB843320A (en) * | 1957-07-09 | 1960-08-04 | Lonza Electric & Chem Works | Process and apparatus for the extrusion of thermoplastic material |
FR1338715A (fr) * | 1962-10-31 | 1963-09-27 | I C P M Ind Chimiche Porto Mar | Perfectionnements aux filières d'extrusion pour les matières thermoplastiques |
US3665068A (en) * | 1969-12-15 | 1972-05-23 | Sun Oil Co | Extrusion of extremely high molecular weight polyolefins |
JPS5418865A (en) * | 1977-07-14 | 1979-02-13 | Kobe Steel Ltd | Extrusion molding of synthetic resin and die therefor |
DE2829232C2 (de) * | 1978-07-03 | 1983-10-20 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur Herstellung von Formkörpern aus hochmolekularem Niederdruckpolyäthylen |
-
1984
- 1984-06-22 CA CA000457287A patent/CA1210918A/en not_active Expired
- 1984-06-27 IN IN451/CAL/84A patent/IN162111B/en unknown
- 1984-06-27 CS CS844940A patent/CS268663B2/cs unknown
- 1984-06-27 IL IL72236A patent/IL72236A/xx unknown
- 1984-06-27 ES ES533761A patent/ES8706175A1/es not_active Expired
- 1984-06-27 AU AU31074/84A patent/AU565764B2/en not_active Ceased
- 1984-06-27 DE DE8484107411T patent/DE3481286D1/de not_active Expired - Lifetime
- 1984-06-27 JP JP84502516A patent/JPS60501702A/ja active Granted
- 1984-06-27 ZA ZA844926A patent/ZA844926B/xx unknown
- 1984-06-27 EP EP84107411A patent/EP0133213B1/en not_active Expired - Lifetime
- 1984-06-27 WO PCT/US1984/000976 patent/WO1985000137A1/en active IP Right Grant
- 1984-06-27 GR GR75141A patent/GR81444B/el unknown
-
1985
- 1985-02-26 NO NO850767A patent/NO850767L/no unknown
- 1985-02-28 FI FI850833A patent/FI83487C/fi not_active IP Right Cessation
- 1985-02-28 DK DK094985A patent/DK163869C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK163869B (da) | 1992-04-13 |
FI83487C (fi) | 1991-07-25 |
IL72236A (en) | 1989-02-28 |
IL72236A0 (en) | 1984-10-31 |
DK94985A (da) | 1985-02-28 |
DK94985D0 (da) | 1985-02-28 |
WO1985000137A1 (en) | 1985-01-17 |
DE3481286D1 (de) | 1990-03-15 |
DK163869C (da) | 1992-09-21 |
JPS6324809B2 (es) | 1988-05-23 |
ZA844926B (en) | 1985-02-27 |
AU565764B2 (en) | 1987-09-24 |
NO850767L (no) | 1985-02-26 |
CA1210918A (en) | 1986-09-09 |
FI850833L (fi) | 1985-02-28 |
CS268663B2 (en) | 1990-04-11 |
AU3107484A (en) | 1985-01-25 |
IN162111B (es) | 1988-03-26 |
EP0133213A1 (en) | 1985-02-20 |
GR81444B (es) | 1984-12-11 |
CS494084A2 (en) | 1989-08-14 |
FI83487B (fi) | 1991-04-15 |
EP0133213B1 (en) | 1990-02-07 |
JPS60501702A (ja) | 1985-10-11 |
ES533761A0 (es) | 1987-06-01 |
FI850833A0 (fi) | 1985-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3070408D1 (en) | A method for reducing sharkskin melt fracture during extrusion of ethylene polymers | |
GB2082959B (en) | Twin-screw degassing extruder for degassing thermoplastic materials or the like | |
AU7336991A (en) | Dynamically cured thermoplastic olefin polymers and process for producing the same | |
AU7691581A (en) | Extruding polyethylene polymers | |
AU6102890A (en) | Dynamically cured thermoplastic olefin polymers and process for producing the same | |
DE3165082D1 (en) | Method for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer | |
GB2143832B (en) | Fog-resistant olefin polymer films | |
DE3481408D1 (de) | Extrusionsverfahren fuer geschaeumte polymere mit beta(a)-polyolefinadditiven und mit verwendung von abfallmaterial sowie die zusammensetzungen dazu. | |
PT80277B (en) | Process for making shaped crosslinkable extruded polymeric products and the corresponding extrusion apparatus | |
EP0061935A3 (en) | Process for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer | |
EP0349826A3 (en) | Process for the manufacture of ionically crosslinked ethylene copolymers, ionically crosslinked ethylene copolymers and their use as foils, cable insulating materials and coupling agents | |
ES8206590A1 (es) | Procedimiento para preparar productos consistentes en polimeros sinteticos expandidos yno reticulados, particularmente los polimeros de poliolefina o estireno | |
ES8501787A1 (es) | Procedimiento para fabricar un objeto de poliester con un revestimiento aplicado sobre el mediante la tecnica de revestimiento dentro de un molde. | |
ES8706175A1 (es) | Un procedimiento para eliminar sustancialmente la fractura superficial de la marca fundida durante la extension de un polimero de etileno. | |
ES438614A1 (es) | Procedimiento, con su maquina correspondiente, para extruir perfiles de material termoplastico. | |
DE3277018D1 (en) | Thermoplastic synthetics that contain adhesive or fibre-shaped, doped polyacetylene particles, and process for their production | |
EP0149335A3 (en) | Apparatus and method for extruding polymer melts | |
IT1172964B (it) | Metodo per la produzione di contenitori da materiali polimeri termoplastici | |
EP0301103A4 (en) | SHEET MOLDING MATERIAL AND LAMINATE FOR MOLDINGS CONTAINING A COMPOSITE LAYER MATERIAL. | |
WO2004076151A3 (en) | Process and an extrusion die for eliminating surface melt fracture during extrusion of thermoplastic polymers | |
ZA844924B (en) | Method for reducing surface melt fracture during extrusion of ethylene polymers | |
EG18950A (en) | Apparatus, installation and process for the manufacture of extruded cakes. | |
DE3365978D1 (en) | A method of extruding material, and extruder for carrying out said method | |
UA32418C2 (uk) | Спосіб обробки різних пластмасових матеріалів | |
PL248788A1 (en) | Method of eliminating viscoelastic melt surface unstablity causing surface roughness while extrusion moulding ethylene polymers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970401 |