ES269680U - Metodo para la extrusion de materiales poliolefinicos lineales de baja densidad que tienen altas viscosidades. - Google Patents
Metodo para la extrusion de materiales poliolefinicos lineales de baja densidad que tienen altas viscosidades.Info
- Publication number
- ES269680U ES269680U ES1981269680U ES269680U ES269680U ES 269680 U ES269680 U ES 269680U ES 1981269680 U ES1981269680 U ES 1981269680U ES 269680 U ES269680 U ES 269680U ES 269680 U ES269680 U ES 269680U
- Authority
- ES
- Spain
- Prior art keywords
- sections
- high viscosities
- linear polyolefin
- polyolefin materials
- extruder
- 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.)
- Granted
Links
- 229920000098 polyolefin Polymers 0.000 title abstract 2
- 230000010006 flight Effects 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
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
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/507—Screws characterised by the material or their manufacturing process
- B29C48/509—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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/6803—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
1. Extrusor rotativo para materiales poliolefínicos de baja densidad, del tipo que comprenden: materiales poliolefínicos lineales de baja densidad que tienen altas viscosidades en el cual dichos materiales son alimentados continuamente hacia y a través de un extrusor rotativo que incluye una caja de extrusor que define un interior cilíndrico y que contiene un tornillo extrusor que tiene espiras de tornillo helicoidales con secciones de alimentación, transición y medición o dosificación, caracterizado porque el tornillo extrusor presenta bordes delanteros abiertos para las espiras de tornillo de dichas secciones; estando las superficies de las espiras de tornillo de dichas secciones recubiertas con material resistente a las excoriaciones. 2. Extrusor según la reivindicación 1, caracterizado porque las espiras de tornillo de dichas secciones de alimentación, transición y medición son aumentadas por lo menos el 20% en ancho sobre los anchos convencionales para aumentar la superficie de apoyo de dicho tornillo. 3. Extrusor según la reivindicación 1, caracterizado porque la profundidad de los tornillos de la sección de alimentación es reducida por lo menos 10% de las profundidades convencionales a fin de dar rigidez a dicho tornillo. 4. Extrusor según la reivindicación 1, caracterizado porque la longitud de la sección de transición es aumentada en por lo menos 50% sobre longitudes convencionales empleadas en dicha sección entre una sección de alimentación y de medición, a fin de reducir el régimen de ascenso de presión en la misma. 5. Extrusor según la reivindicación 1, caracterizado porque el huelgo radial entre dicho tornillo extrusor y las paredes de dicho interior cilíndrico de la caja del extrusor es aumentado en el orden del 100% sobre los huelgos convencionales empleados. 6. Extrusor según la reivindicación 1, caracterizado porque se emplea además una sección de mezclado corriente abajo de dichas secciones de tornillo de extrusor. 7. Extrusor rotativo para materiales poliolefínicos de baja densidad; tal y como queda sustancialmente descrito en la presente memoria, e ilustrado en los dibujos adjuntos. Esta memoria consta de 22 hojas escritas a máquina por una sola cara.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/199,651 US4321229A (en) | 1980-10-22 | 1980-10-22 | Method for extruding linear polyolefin materials having high viscosities |
Publications (2)
Publication Number | Publication Date |
---|---|
ES269680U true ES269680U (es) | 1984-04-01 |
ES269680Y ES269680Y (es) | 1984-11-16 |
Family
ID=22738455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES1981269680U Expired ES269680Y (es) | 1980-10-22 | 1981-10-21 | Metodo para la extrusion de materiales poliolefinicos lineales de baja densidad que tienen altas viscosidades. |
Country Status (23)
Country | Link |
---|---|
US (1) | US4321229A (es) |
EP (1) | EP0050496B1 (es) |
JP (1) | JPS608213B2 (es) |
KR (1) | KR870001222B1 (es) |
AR (1) | AR231617A1 (es) |
AT (1) | ATE13395T1 (es) |
AU (1) | AU7615781A (es) |
BR (1) | BR8106746A (es) |
CA (1) | CA1162376A (es) |
CS (1) | CS230588B2 (es) |
DE (1) | DE3170630D1 (es) |
DK (1) | DK464881A (es) |
ES (1) | ES269680Y (es) |
FI (1) | FI813296L (es) |
GR (1) | GR74699B (es) |
HU (1) | HU185150B (es) |
IL (1) | IL64044A0 (es) |
IN (1) | IN155500B (es) |
NO (1) | NO813451L (es) |
NZ (1) | NZ198537A (es) |
PL (1) | PL129911B1 (es) |
TR (1) | TR21017A (es) |
ZA (1) | ZA816887B (es) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4392967A (en) * | 1981-08-11 | 1983-07-12 | Exxon Research And Engineering Co. | Process for continuously manufacturing lubricating grease |
US4425044A (en) | 1981-10-21 | 1984-01-10 | Union Carbide Corporation | Mixer heads for polyolefin extruders |
US4532189A (en) * | 1982-02-19 | 1985-07-30 | W. R. Grace & Co., Cryovac Div. | Linear polyethylene shrink films |
US4461734A (en) * | 1982-09-13 | 1984-07-24 | Union Carbide Corporation | Process for plasticization and pumping of low bulk density plastics |
NO173690C (no) * | 1983-03-29 | 1994-01-19 | Mitsui Toatsu Chemicals | Fremgangsmaate ved fremstilling av roer ved ekstruderingsforming av en termoherdende harpiks |
US4798473A (en) * | 1983-04-29 | 1989-01-17 | Rauwendaal Christiaan J | Extruder screw |
US4564349A (en) * | 1983-06-01 | 1986-01-14 | Union Carbide Corporation | Extruder assembly for extruding water-curable silane modified polymers |
US4617241A (en) * | 1984-01-23 | 1986-10-14 | W. R. Grace & Co., Cryovac Div. | Linear polyethylene stretch/shrink films |
US4551380A (en) * | 1984-05-10 | 1985-11-05 | W. R. Grace & Co., Cryovac Div. | Oriented heat-sealable multilayer packaging film |
US4514465A (en) * | 1984-05-30 | 1985-04-30 | W. R. Grace & Co., Cryovac Div. | Storm window film comprising at least five layers |
EP0213510B2 (en) * | 1985-08-16 | 1995-01-11 | Idemitsu Petrochemical Co. Ltd. | Screw for molding thermoplastic resin |
US4642041A (en) * | 1986-01-31 | 1987-02-10 | Murphy Richard W | Extruder screw for minimizing the opposing pressure flow |
US4766042A (en) * | 1987-02-27 | 1988-08-23 | Otani Tony U | Plastics processing machine components and alloy for use therein |
JPS63291632A (ja) * | 1987-05-25 | 1988-11-29 | Mitsubishi Heavy Ind Ltd | 可塑化スクリュ |
BE1000910A3 (fr) * | 1987-09-16 | 1989-05-16 | Advanced Recycling Tech | Vis d'extrusion de matiere thermoplastiques. |
US4994223A (en) * | 1989-06-16 | 1991-02-19 | Bomatic, Inc. | Extruder screw and method for the extrusion of thermally sensitive thermoplastic materials |
US5267847A (en) * | 1990-12-24 | 1993-12-07 | Bridgestone Corporation | Compact precision extrusion system |
US5356281A (en) * | 1992-08-10 | 1994-10-18 | Three Bond Co., Ltd. | Screw-type resin injection apparatus for injection molding |
US5599098A (en) * | 1995-12-14 | 1997-02-04 | The Black Clawson Company | Extruder screw with multiple flighting |
US6468067B1 (en) * | 1999-09-16 | 2002-10-22 | Toyo Tire & Rubber Co., Ltd. | Composite extruding apparatus of rubber and method of extruding unvulcanized rubber |
US6634781B2 (en) | 2001-01-10 | 2003-10-21 | Saint Gobain Industrial Ceramics, Inc. | Wear resistant extruder screw |
US6712495B2 (en) * | 2001-11-20 | 2004-03-30 | E. I. Du Pont De Nemours And Company | Mixing apparatus |
US7021816B2 (en) * | 2002-04-08 | 2006-04-04 | Robert Malloy | Plasticating screw |
JP5872180B2 (ja) * | 2011-03-22 | 2016-03-01 | 住友化学株式会社 | 液晶ポリエステル成形体の製造方法 |
FI129682B (en) * | 2016-08-26 | 2022-06-30 | Teknologian Tutkimuskeskus Vtt Oy | Single screw extruder and method |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB657614A (en) * | 1945-09-25 | 1951-09-26 | U S Rubber Reclaiming Company | Method and apparatus for treating rubber and the like |
US3164375A (en) * | 1955-10-14 | 1965-01-05 | Frenkel Ag C D | Apparatus for intensive mixing |
US3375549A (en) * | 1961-04-05 | 1968-04-02 | Uniroyal Inc | Method and apparatus for refining and separating plastic materials |
US3197814A (en) * | 1962-07-09 | 1965-08-03 | Du Pont | Screw construction for extrusion apparatus and the like |
US3300810A (en) * | 1964-01-29 | 1967-01-31 | Nrm Corp | Extruder |
US3310836A (en) * | 1964-09-25 | 1967-03-28 | George B Nichols | Extruder, etc. |
US3411179A (en) * | 1966-04-12 | 1968-11-19 | Frank W Egan & Company | Extruder screw mixing section |
US3486192A (en) * | 1967-03-24 | 1969-12-30 | Union Carbide Corp | Apparatus for extrusion of thermoplastics |
US3767754A (en) * | 1968-11-15 | 1973-10-23 | Allied Chem | Method for melting and dispersion of thermoplastic polymers |
US3577494A (en) * | 1969-09-05 | 1971-05-04 | Dow Chemical Co | Method for the preparation of extrudable synthetic resinous materials |
US3756574A (en) * | 1971-06-17 | 1973-09-04 | Union Carbide Corp | Thermoplastic material mixing |
US3905588A (en) * | 1974-02-08 | 1975-09-16 | Cincinnati Milacron Inc | Method and apparatus for plasticating polymers |
FR2272822B1 (es) * | 1974-06-01 | 1978-08-18 | Werner & Pfleiderer | |
JPS5156874A (en) * | 1974-11-14 | 1976-05-18 | Toray Industries | Konoryoku 2 suteejisukuryuu |
US4006209A (en) * | 1975-02-10 | 1977-02-01 | Egan Machinery Company | Method for additive feeding |
US3998318A (en) * | 1975-03-31 | 1976-12-21 | The Pantasote Company | Extruder screw |
US4129386A (en) * | 1976-06-01 | 1978-12-12 | Akzona Incorporated | Extrusion apparatus |
US4243619A (en) * | 1978-03-31 | 1981-01-06 | Union Carbide Corporation | Process for making film from low density ethylene hydrocarbon copolymer |
US4343755A (en) * | 1978-09-06 | 1982-08-10 | Union Carbide Corporation | Process for extruding ethylene polymers |
-
1980
- 1980-10-22 US US06/199,651 patent/US4321229A/en not_active Expired - Lifetime
-
1981
- 1981-10-02 NZ NZ198537A patent/NZ198537A/en unknown
- 1981-10-02 CA CA000387197A patent/CA1162376A/en not_active Expired
- 1981-10-05 ZA ZA816887A patent/ZA816887B/xx unknown
- 1981-10-08 AU AU76157/81A patent/AU7615781A/en not_active Abandoned
- 1981-10-13 NO NO813451A patent/NO813451L/no unknown
- 1981-10-14 IL IL64044A patent/IL64044A0/xx unknown
- 1981-10-16 EP EP81304843A patent/EP0050496B1/en not_active Expired
- 1981-10-16 DE DE8181304843T patent/DE3170630D1/de not_active Expired
- 1981-10-16 AT AT81304843T patent/ATE13395T1/de not_active IP Right Cessation
- 1981-10-20 BR BR8106746A patent/BR8106746A/pt unknown
- 1981-10-20 GR GR66306A patent/GR74699B/el unknown
- 1981-10-21 HU HU813069A patent/HU185150B/hu unknown
- 1981-10-21 AR AR287168A patent/AR231617A1/es active
- 1981-10-21 KR KR1019810004006A patent/KR870001222B1/ko active
- 1981-10-21 ES ES1981269680U patent/ES269680Y/es not_active Expired
- 1981-10-21 PL PL1981233523A patent/PL129911B1/pl unknown
- 1981-10-21 JP JP56167329A patent/JPS608213B2/ja not_active Expired
- 1981-10-21 DK DK464881A patent/DK464881A/da not_active Application Discontinuation
- 1981-10-21 TR TR21017A patent/TR21017A/xx unknown
- 1981-10-21 FI FI813296A patent/FI813296L/fi not_active Application Discontinuation
- 1981-10-21 IN IN1165/CAL/81A patent/IN155500B/en unknown
- 1981-10-22 CS CS817745A patent/CS230588B2/cs unknown
Also Published As
Publication number | Publication date |
---|---|
DE3170630D1 (en) | 1985-06-27 |
EP0050496B1 (en) | 1985-05-22 |
FI813296L (fi) | 1982-04-23 |
BR8106746A (pt) | 1982-07-06 |
HU185150B (en) | 1984-12-28 |
CA1162376A (en) | 1984-02-21 |
TR21017A (tr) | 1983-05-12 |
PL233523A1 (es) | 1982-05-24 |
US4321229A (en) | 1982-03-23 |
CS230588B2 (en) | 1984-08-13 |
NZ198537A (en) | 1985-07-31 |
JPS57126640A (en) | 1982-08-06 |
ES269680Y (es) | 1984-11-16 |
NO813451L (no) | 1982-04-23 |
PL129911B1 (en) | 1984-06-30 |
AU7615781A (en) | 1982-04-29 |
JPS608213B2 (ja) | 1985-03-01 |
ATE13395T1 (de) | 1985-06-15 |
KR870001222B1 (ko) | 1987-06-22 |
EP0050496A3 (en) | 1983-01-12 |
KR830007273A (ko) | 1983-10-19 |
ZA816887B (en) | 1982-09-29 |
DK464881A (da) | 1982-04-23 |
IL64044A0 (en) | 1982-01-31 |
GR74699B (es) | 1984-07-04 |
EP0050496A2 (en) | 1982-04-28 |
IN155500B (es) | 1985-02-09 |
AR231617A1 (es) | 1985-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1K | Utility model lapsed |
Effective date: 20001009 |