ITMI960219A0 - - Google Patents
Info
- Publication number
- ITMI960219A0 ITMI960219A0 ITMI960219A ITMI960219A ITMI960219A0 IT MI960219 A0 ITMI960219 A0 IT MI960219A0 IT MI960219 A ITMI960219 A IT MI960219A IT MI960219 A ITMI960219 A IT MI960219A IT MI960219 A0 ITMI960219 A0 IT MI960219A0
- Authority
- IT
- Italy
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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/64—Screws with two or more threads
- B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—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
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/2715—Cleaning; Purging; Avoiding contamination of plasticising units
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating 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
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- 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
- B29C48/64—Screws with two or more threads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96MI000219A IT1282578B1 (it) | 1996-02-07 | 1996-02-07 | Procedimento e macchina per la mescolazione con laminazione in continuo di materiale termoplastico |
| EP97200234A EP0788868B1 (en) | 1996-02-07 | 1997-01-29 | Process and machine for the mixing with continuous rolling of thermoplastic material |
| DE69704289T DE69704289T2 (de) | 1996-02-07 | 1997-01-29 | Verfahren und Vorrichtung zum Mischen mit kontinuierlichen Walzen von thermoplastischem Material |
| JP9023559A JPH09314641A (ja) | 1996-02-07 | 1997-02-06 | 熱可塑性材料の混合方法及び機械 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96MI000219A IT1282578B1 (it) | 1996-02-07 | 1996-02-07 | Procedimento e macchina per la mescolazione con laminazione in continuo di materiale termoplastico |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITMI960219A0 true ITMI960219A0 (US07943777-20110517-C00090.png) | 1996-02-07 |
| ITMI960219A1 ITMI960219A1 (it) | 1997-08-07 |
| IT1282578B1 IT1282578B1 (it) | 1998-03-31 |
Family
ID=11373166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT96MI000219A IT1282578B1 (it) | 1996-02-07 | 1996-02-07 | Procedimento e macchina per la mescolazione con laminazione in continuo di materiale termoplastico |
Country Status (4)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6062719A (en) * | 1996-09-24 | 2000-05-16 | The Dow Chemical Company | High efficiency extruder |
| JP3499414B2 (ja) * | 1996-12-24 | 2004-02-23 | 株式会社神戸製鋼所 | ２軸混練機 |
| DE19950917A1 (de) * | 1999-10-21 | 2001-04-26 | Degussa | Doppelschneckenextruder mit neuen Schneckenelementen |
| DE10143570A1 (de) * | 2001-09-05 | 2003-03-20 | Buehler Ag | Entgasung von fließfähigen Massen in einem Mehrwellenextruder |
| EP3023222B1 (de) | 2009-07-16 | 2019-02-20 | Blach Verwaltungs GmbH & Co. KG | Extruder |
| AT509710B1 (de) * | 2010-03-24 | 2011-11-15 | Josef Ing Blach | Extruder |
| AT512974B1 (de) * | 2012-05-23 | 2015-02-15 | Josef A Ing Blach | Mehrwellenextruder |
| EP3930983B1 (de) | 2019-02-27 | 2022-12-28 | Covestro Intellectual Property GmbH & Co. KG | Schneckenelement mit nicht-achsensymmetrischem schneckenprofil und dessen verwendung |
| WO2023198550A1 (de) | 2022-04-11 | 2023-10-19 | Covestro Deutschland Ag | Mehrwellige schneckenmaschine mit einem paar schneckenelementen mit verbesserter misch- und entgasungswirkung bei reduziertem energieeintrag |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131371A (en) * | 1977-08-03 | 1978-12-26 | E. I. Du Pont De Nemours And Company | Co-rotating multiple screw processor |
| JPS5829733B2 (ja) * | 1977-11-19 | 1983-06-24 | 積水化学工業株式会社 | 押出機 |
| JPS5551543A (en) * | 1978-10-12 | 1980-04-15 | Toshiba Mach Co Ltd | Conical multi-shaft extruder screw |
| DE3014643A1 (de) * | 1980-04-16 | 1981-10-22 | Bayer Ag, 5090 Leverkusen | Gleichsinnig rotierbare doppelschnecke |
| SU1634511A2 (ru) * | 1988-07-04 | 1991-03-15 | Тамбовское Научно-Производственное Объединение Полимерного Машиностроения "Полимермаш" | Черв чный смеситель дл переработки полимеров |
-
1996
- 1996-02-07 IT IT96MI000219A patent/IT1282578B1/it active IP Right Grant
-
1997
- 1997-01-29 EP EP97200234A patent/EP0788868B1/en not_active Expired - Lifetime
- 1997-01-29 DE DE69704289T patent/DE69704289T2/de not_active Expired - Lifetime
- 1997-02-06 JP JP9023559A patent/JPH09314641A/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| IT1282578B1 (it) | 1998-03-31 |
| ITMI960219A1 (it) | 1997-08-07 |
| JPH09314641A (ja) | 1997-12-09 |
| EP0788868A1 (en) | 1997-08-13 |
| DE69704289D1 (de) | 2001-04-26 |
| EP0788868B1 (en) | 2001-03-21 |
| DE69704289T2 (de) | 2001-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |