GB1452579A - Vented extruder - Google Patents

Vented extruder

Info

Publication number
GB1452579A
GB1452579A GB4632174A GB4632174A GB1452579A GB 1452579 A GB1452579 A GB 1452579A GB 4632174 A GB4632174 A GB 4632174A GB 4632174 A GB4632174 A GB 4632174A GB 1452579 A GB1452579 A GB 1452579A
Authority
GB
United Kingdom
Prior art keywords
zone
screw
channel
pumping
downstream
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
GB4632174A
Other languages
English (en)
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.)
Koehring Co
Original Assignee
Koehring Co
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
Application filed by Koehring Co filed Critical Koehring Co
Publication of GB1452579A publication Critical patent/GB1452579A/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • 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
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B29B7/429—Screws
    • 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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
    • 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
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB4632174A 1974-06-07 1974-10-25 Vented extruder Expired GB1452579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/477,370 US3992500A (en) 1974-06-07 1974-06-07 Vented extruder

Publications (1)

Publication Number Publication Date
GB1452579A true GB1452579A (en) 1976-10-13

Family

ID=23895641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4632174A Expired GB1452579A (en) 1974-06-07 1974-10-25 Vented extruder

Country Status (5)

Country Link
US (1) US3992500A (US07489958-20090210-P00001.png)
CA (1) CA1041717A (US07489958-20090210-P00001.png)
DE (1) DE2451886A1 (US07489958-20090210-P00001.png)
FR (1) FR2273651A1 (US07489958-20090210-P00001.png)
GB (1) GB1452579A (US07489958-20090210-P00001.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231034A2 (de) * 1982-12-30 1987-08-05 Peroxid-Chemie GmbH Verfahren zur Herstellung von peroxidhaltigen Pasten bzw.plastischen Massen

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112519A (en) * 1976-07-08 1978-09-05 Hpm Corporation Vented injection molding machine and method
US4143108A (en) * 1976-08-26 1979-03-06 Monsanto Company Method of injection molding nitrile articles
US4063717A (en) * 1977-02-01 1977-12-20 E. I. Du Pont De Nemours And Company Multivented twin-screw extruder
JPS5454172A (en) * 1977-10-07 1979-04-28 Kobe Steel Ltd Equipment for treting waste gas from injection molding machine
US4185060A (en) * 1978-03-17 1980-01-22 Ladney M Jr Method of manufacturing structural foam plastic products free from undesirable contaminant constituents
US4173445A (en) * 1978-07-17 1979-11-06 Monsanto Company Plastics extrusion apparatus
US4247519A (en) * 1978-12-04 1981-01-27 Kobe Steel, Ltd. Exhaust gas treatment device for injection molding machines
US4490104A (en) * 1982-11-22 1984-12-25 Borg-Warner Chemicals, Inc. Apparatus for separating a low viscosity material from a high _viscosity material
US4491417A (en) * 1983-04-29 1985-01-01 Usm Corporation Devolatilizing mixing extruder
US4529320A (en) * 1983-09-14 1985-07-16 Usm Corporation Rotary processors and method for devolatilizing materials
US4529478A (en) * 1983-09-14 1985-07-16 Usm Corporation Rotary processors and vacuum systems
DE3615098C2 (de) * 1985-05-08 1994-04-07 Barmag Barmer Maschf Entgasungsschneckenstrangpresse
DE3744193C1 (de) * 1987-12-24 1989-01-26 Berstorff Gmbh Masch Hermann Verfahren und Extruder zum Entgasen thermoplastischer Kunststoffschmelzen ueber einen weiten Viskositaetsbereich
JPH01259922A (ja) * 1988-04-11 1989-10-17 Toshiba Mach Co Ltd ベント式射出成形機
JPH0667587B2 (ja) * 1988-05-12 1994-08-31 株式会社石中鉄工所 混練用回転スクリュの混練構造
DE3818003A1 (de) * 1988-05-27 1989-11-30 Kwm Kunststoffmaschinen Gmbh Vorrichtung zum kontinuierlichen entgasen eines gemisches aus polymeren bindemitteln und fuellstoffen und/oder fasern
JPH0676448B2 (ja) * 1988-06-25 1994-09-28 三菱レイヨン株式会社 改質されたメタクリル系樹脂成形材料の製造方法
DE4009638C2 (de) * 1990-03-26 2000-11-09 Hoechst Ag Verfahren zur Herstellung einer koextrudierten Folie
DE69224242T2 (de) * 1991-03-04 1998-05-14 Dow Chemical Co Verfahren zur Verbesserung der oxidativen thermischen Stabilität von Ethylenpolymeren
DE4310966A1 (de) * 1993-04-03 1994-10-06 Krupp Maschinentechnik Verfahren zur Regelung des Massenstromes in den Zylindern eines Entgasungsextruders und Entgasungsextruder
US5468429A (en) * 1994-04-15 1995-11-21 Li; Tzu-Li Ultrasound-enhanced devolatilization of thermoplastic plastics
JP3104860B2 (ja) * 1996-12-27 2000-10-30 日精樹脂工業株式会社 射出スクリュ
US5980790A (en) * 1997-03-04 1999-11-09 Mitsubishi Gas Chemical Company, Inc. Process for producing a copolymer
US6164810A (en) * 1998-09-16 2000-12-26 Eastman Kodak Company Vented single stage barrier screw with a gas vent hole and axial bore in the screw for venting gases
DE19860836C1 (de) * 1998-12-30 2000-05-18 Haller Formholz Verfahren und Vorrichtung zum kontinuierlichen Herstellen von Formkörpern
US6280667B1 (en) 1999-04-19 2001-08-28 Andersen Corporation Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component
CN1784108A (zh) 2000-06-19 2006-06-07 国际整流器有限公司 内部和外部元件最少的镇流控制集成电路
US7018574B2 (en) * 2003-02-20 2006-03-28 Idemitsu Kosan Co., Ltd. Process for removing volatile components in polyarylene sulfide
US7198840B2 (en) * 2003-02-25 2007-04-03 Polyone Corporation Profile-extruded poly(vinyl chloride) articles and method of making same
DE102004041689B4 (de) * 2004-08-27 2010-02-11 Kraussmaffei Berstorff Gmbh Vorrichtung zur Herstellung von Spritzgussteilen
KR101116667B1 (ko) * 2007-03-10 2012-03-08 쿨 옵션스, 인코포레이티드 금속 사출 성형을 위한 스크류 디자인 및 방법
DE102008048598A1 (de) * 2008-09-23 2010-03-25 Adm-Isobloc Gmbh Verfahren und Vorrichtung zum Entgasen eines Gemisches insbesondere aus polymeren Bindemitteln
US9931603B2 (en) * 2014-06-23 2018-04-03 Wenger Manufacturing, Inc. Method and apparatus for extrusion processing of high fiber content foods
DE202017103398U1 (de) 2017-06-06 2017-07-03 Kraussmaffei Technologies Gmbh Plastifiziereinheit mit Entgasungsfunktion
US11339233B2 (en) 2017-09-15 2022-05-24 Geon Performance Solutions, Llc Flame retardant poly(vinyl chloride) compounds
CN108501244A (zh) * 2018-03-08 2018-09-07 江苏中宏环保科技有限公司 环保连续螺旋螺杆组合多功能橡胶复原设备
AT524680B1 (de) * 2021-03-25 2022-08-15 Gaw Tech Gmbh Vorrichtung und Verfahren zur Aufbereitung von Kunststoffabfällen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023456A (en) * 1959-08-03 1962-03-06 Dow Chemical Co Extruder apparatus
CH420580A (de) * 1965-02-08 1966-09-15 Buss Ag Einrichtung zum Entgasen von plastischen Massen in Schneckenmaschinen
US3376603A (en) * 1966-05-20 1968-04-09 Lavorazione Mat Plast Apparatus for manufacturing synthetic textile fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231034A2 (de) * 1982-12-30 1987-08-05 Peroxid-Chemie GmbH Verfahren zur Herstellung von peroxidhaltigen Pasten bzw.plastischen Massen
EP0231034A3 (en) * 1982-12-30 1989-05-10 Peroxid-Chemie Gmbh Method of manufacturing pastes or plastic masses containing peroxide

Also Published As

Publication number Publication date
CA1041717A (en) 1978-11-07
FR2273651B3 (US07489958-20090210-P00001.png) 1977-10-21
DE2451886A1 (de) 1975-12-18
US3992500A (en) 1976-11-16
FR2273651A1 (fr) 1976-01-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee