FR2419813A1 - Procede et appareil pour eliminer des gaz et vapeurs nuisibles de melanges thermoplastiques moussables - Google Patents
Procede et appareil pour eliminer des gaz et vapeurs nuisibles de melanges thermoplastiques moussablesInfo
- Publication number
- FR2419813A1 FR2419813A1 FR7905795A FR7905795A FR2419813A1 FR 2419813 A1 FR2419813 A1 FR 2419813A1 FR 7905795 A FR7905795 A FR 7905795A FR 7905795 A FR7905795 A FR 7905795A FR 2419813 A1 FR2419813 A1 FR 2419813A1
- Authority
- FR
- France
- Prior art keywords
- mixture
- foamable thermoplastic
- vapors
- harmful gas
- thermoplastic mixtures
- 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
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable 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
- B29C48/268—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
- B29C48/25—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
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/83—Injection molding of polyolefin-type foam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/812—Venting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Molding Of Porous Articles (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
L'invention concerne un procédé et un appareil de traitement préparatoire de mélanges thermoplastiques moussables. Pour traiter des granules thermoplastiques mélangés à un agent de gonflement, l'appareil comporte, dans un cylindre, une vis rotative destinée à mélanger, travailler et plastifier ce mélange. Entre ses deux étages de compression, la vis a un étage de décompression (avec une forme spéciale des filets) permettant l'échappement de la vapeur d'eau et d'autres matières volatiles inopportune du mélange. A sa sortie de l'appareil, le mélange a l'état fondu permettant son extrusion ou son moulage par injection pour produire des éléments de construction en mousse rigide.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/887,616 US4185060A (en) | 1978-03-17 | 1978-03-17 | Method of manufacturing structural foam plastic products free from undesirable contaminant constituents |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2419813A1 true FR2419813A1 (fr) | 1979-10-12 |
FR2419813B1 FR2419813B1 (fr) | 1983-12-16 |
Family
ID=25391519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7905795A Granted FR2419813A1 (fr) | 1978-03-17 | 1979-03-06 | Procede et appareil pour eliminer des gaz et vapeurs nuisibles de melanges thermoplastiques moussables |
Country Status (10)
Country | Link |
---|---|
US (1) | US4185060A (fr) |
JP (1) | JPS585774B2 (fr) |
AU (1) | AU522743B2 (fr) |
BR (1) | BR7901667A (fr) |
CA (1) | CA1103873A (fr) |
DE (1) | DE2910504C2 (fr) |
FR (1) | FR2419813A1 (fr) |
GB (1) | GB2016359B (fr) |
IT (1) | IT1114478B (fr) |
SE (1) | SE434365B (fr) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409165A (en) * | 1981-06-18 | 1983-10-11 | The B. F. Goodrich Company | Method and apparatus for extruding a cellular product |
DE3275070D1 (de) * | 1982-08-26 | 1987-02-19 | Berstorff Gmbh Masch Hermann | Extruder with vent zone |
US4944906A (en) * | 1988-10-11 | 1990-07-31 | Spirex Corporation | Methods of injection molding and extruding wet hygroscopic ionomers |
US4992222A (en) * | 1988-12-29 | 1991-02-12 | General Electric Company | Method for removing volatile substances from polyphenylene ether or polyphenylene ether/styrene resin compositions |
AT393272B (de) * | 1989-06-07 | 1991-09-25 | Rettenbacher Markus Dipl Ing | Verfahren zur herstellung von extrudierten, direkt expandierten biopolymerprodukten und holzfaserplatten, verpackungs- und isoliermaterialien |
US5034171A (en) * | 1989-11-30 | 1991-07-23 | Air Products And Chemicals, Inc. | Process for extruding thermoplastic materials using low pressure inert gases as foaming agents |
US5236645A (en) * | 1990-09-21 | 1993-08-17 | Basf Corporation | Addition of additives to polymeric materials |
JPH0479623U (fr) * | 1990-11-22 | 1992-07-10 | ||
US5123828A (en) * | 1991-04-24 | 1992-06-23 | Cincinnati Milacron Inc. | Extruder vent having recessed vent passageway opening |
US5238633A (en) * | 1991-05-24 | 1993-08-24 | Duraplast Corporation | Method and apparatus for recycling plastic waste into a thin profile, mechanically reinforced board |
KR100363291B1 (ko) | 1994-12-27 | 2003-05-09 | 세키스이가세이힝코교가부시키가이샤 | 열가소성폴리에스테르계수지발포체의연속적제조방법및제조장치 |
US6056430A (en) * | 1998-09-25 | 2000-05-02 | Hpm Corporation | Plasticating apparatus having a multichannel wave screw with a cross channel solids transition |
US6234659B1 (en) | 1998-09-25 | 2001-05-22 | Hpm Corporation | Surge suppressor for vented injection molding machine screw |
US6132075A (en) * | 1998-09-25 | 2000-10-17 | Hpm Corporation | Multichannel wave screw with a slush channel barrier section |
US6432337B1 (en) * | 1998-11-09 | 2002-08-13 | James D. Fogarty | Thermoplastic foam extrusion |
US6113375A (en) * | 1998-11-09 | 2000-09-05 | Fogarty; James | Thermoplastic foam extrusion assembly |
FR2786123B1 (fr) * | 1998-11-25 | 2001-02-09 | Schmalbach Lubeca | Procede et installation pour la fabrication d'une preforme, mettant en oeuvre des moyens de sechage perfectionnes, et recipient plastique obtenu a partir de la preforme |
US6132076A (en) * | 1998-12-09 | 2000-10-17 | General Electric Company | Single extruder screw for efficient blending of miscible and immiscible polymeric materials |
US20020070288A1 (en) * | 1999-11-08 | 2002-06-13 | Abdeslam Bouti | Mixer bushing to improve melt homogeneity in injection molding machines and hot runners |
EP1293319A4 (fr) * | 2000-05-31 | 2006-05-24 | Asahi Chemical Ind | Procede de moulage par injection |
US6513963B2 (en) | 2001-01-19 | 2003-02-04 | Eastman Kodak Company | Multi-staged vented extrusion screw with dual channel depth pumping section |
EP1861233A4 (fr) * | 2005-03-08 | 2010-10-06 | Steer Engineering Private Ltd | Elements d'introduction a double vis pour extrudeuse |
AT9383U1 (de) * | 2006-05-16 | 2007-09-15 | Engel Austria Gmbh | Verfahren zur herstellung geschäumter kunststoffkörper |
IT1391389B1 (it) * | 2008-10-06 | 2011-12-13 | Bazzica Engineering Di Carlo Bazzica & C S A S | Metodo per il cambio colore in una macchina di stampaggio di materiale plastico espanso e macchina di stampaggio implementante tale metodo |
ITPR20080068A1 (it) * | 2008-10-22 | 2010-04-23 | Storci S P A | Vite di compressione in macchine continue per estrusione e produzione pasta |
US8187651B2 (en) | 2008-11-24 | 2012-05-29 | Kraft Foods Global Brands Llc | Method and apparatus for continuous processing of whole muscle meat products |
US8308342B2 (en) * | 2008-11-24 | 2012-11-13 | Kraft Foods Global Brands Llc | Processing elements for mixing meat products |
US8641263B2 (en) * | 2008-11-24 | 2014-02-04 | Kraft Foods Group Brands Llc | Method and apparatus for continuous processing of whole muscle meat products |
AT522425B1 (de) * | 2019-03-20 | 2022-01-15 | Erema Eng Recycling Maschinen & Anlagen Gmbh | Schälschnecke |
JP7485868B2 (ja) * | 2019-06-18 | 2024-05-17 | 三菱エンジニアリングプラスチックス株式会社 | ペレットの製造方法、スクリュー、および、押出機 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115675A (en) * | 1961-04-28 | 1963-12-31 | Shell Oil Co | Extrusion apparatus with degasification elements |
US3150214A (en) * | 1959-11-23 | 1964-09-22 | Owens Illinois Glass Co | Method of extruding a foamed plastic composition |
US3151192A (en) * | 1961-07-24 | 1964-09-29 | Sun Chemical Corp | Method of extruding a foamed thermoplastic product |
US3461497A (en) * | 1967-02-23 | 1969-08-19 | James Winston Geyer | Extrusion apparatus |
US4074362A (en) * | 1976-11-19 | 1978-02-14 | Hpm Corporation | Vented injection molding machine |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US687915A (en) * | 1900-06-29 | 1901-12-03 | Chambers Brothers Co | Brick-machine. |
US2774105A (en) * | 1954-04-27 | 1956-12-18 | Du Pont | Extraction-extrusion apparatus |
CH387939A (de) * | 1961-10-30 | 1965-02-15 | Buehler Ag Geb | Spritzgussmaschine mit Vakuumentgasung der plastifizierten Masse |
BE638935A (fr) * | 1962-10-22 | 1900-01-01 | ||
US3268636A (en) * | 1963-07-01 | 1966-08-23 | Union Carbide Corp | Method and apparatus for injection molding foamed plastic articles |
DE1251943B (fr) * | 1965-01-02 | 1900-01-01 | ||
JPS4814021B1 (fr) * | 1967-04-13 | 1973-05-02 | ||
US3496603A (en) * | 1967-08-17 | 1970-02-24 | Johnson & Johnson | Single screw extruder |
GB1289863A (fr) * | 1968-10-21 | 1972-09-20 | ||
DE1964748B2 (de) * | 1969-12-24 | 1973-12-13 | Chemische Werke Huels Ag, 4370 Marl | Verfahren zum Herstellen thermo plastischer Schaumkunststoff Form korper nach dem Spritzgießverfahren |
DE2005095B2 (de) * | 1970-02-04 | 1975-11-27 | Krauss-Maffei Ag, 8000 Muenchen | Einspritzeinheit einer SpritzgieBmaschine zum Verarbeiten von thermoplastischen Formmassen |
US3650652A (en) * | 1970-05-05 | 1972-03-21 | Feed Screws Inc | Apparatus for extruding plastic material |
US3814779A (en) * | 1971-04-01 | 1974-06-04 | Cosden Oil & Chem Co | Method of forming foamed polystyrene articles from polystyrene beads |
US3826477A (en) * | 1971-04-13 | 1974-07-30 | Meiki Seisakusho Kk | Injection molding machine with a venting device |
DE2311241B2 (de) * | 1973-03-02 | 1977-06-23 | Verfahren zum direkten kuehlen von geschmolzenen thermoplastischen kunststoffen bei einem extrusionsverfahren | |
US3927160A (en) * | 1973-07-17 | 1975-12-16 | Cosden Oil & Chem Co | Formal profile extrusion process |
US3940467A (en) * | 1973-07-20 | 1976-02-24 | Bethlehem Steel Corporation | Method of injection molding a structural foamed thermoplastic article having a uniform swirl-free and indent-free surface |
JPS5232776B2 (fr) * | 1973-10-27 | 1977-08-24 | ||
CA1035107A (fr) * | 1974-04-09 | 1978-07-25 | United States Gypsum Company | Methode et appareil pour l'extrusion de polymeres thermoplastiques |
NL7503986A (nl) * | 1974-04-11 | 1975-10-14 | Basf Ag | Werkwijze voor het inmengen van toevoegsels in kunststoffen onder gelijktijdig verwijderen van vluchtige bestanddelen. |
US3992500A (en) * | 1974-06-07 | 1976-11-16 | Koehring Company | Vented extruder |
US3949973A (en) * | 1974-07-05 | 1976-04-13 | Koehring Company | Undercut feed section screw |
JPS5332424B2 (fr) * | 1974-07-25 | 1978-09-08 | ||
US4006209A (en) * | 1975-02-10 | 1977-02-01 | Egan Machinery Company | Method for additive feeding |
US4060226A (en) * | 1976-07-08 | 1977-11-29 | John Schweller | Apparatus for injection molding |
-
1978
- 1978-03-17 US US05/887,616 patent/US4185060A/en not_active Expired - Lifetime
-
1979
- 1979-02-14 CA CA321,458A patent/CA1103873A/fr not_active Expired
- 1979-02-16 AU AU44304/79A patent/AU522743B2/en not_active Ceased
- 1979-03-06 FR FR7905795A patent/FR2419813A1/fr active Granted
- 1979-03-13 JP JP54028343A patent/JPS585774B2/ja not_active Expired
- 1979-03-15 IT IT48360/79A patent/IT1114478B/it active
- 1979-03-16 BR BR7901667A patent/BR7901667A/pt unknown
- 1979-03-16 SE SE7902361A patent/SE434365B/sv not_active IP Right Cessation
- 1979-03-16 DE DE2910504A patent/DE2910504C2/de not_active Expired
- 1979-03-16 GB GB7909273A patent/GB2016359B/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150214A (en) * | 1959-11-23 | 1964-09-22 | Owens Illinois Glass Co | Method of extruding a foamed plastic composition |
US3115675A (en) * | 1961-04-28 | 1963-12-31 | Shell Oil Co | Extrusion apparatus with degasification elements |
US3151192A (en) * | 1961-07-24 | 1964-09-29 | Sun Chemical Corp | Method of extruding a foamed thermoplastic product |
US3461497A (en) * | 1967-02-23 | 1969-08-19 | James Winston Geyer | Extrusion apparatus |
US4074362A (en) * | 1976-11-19 | 1978-02-14 | Hpm Corporation | Vented injection molding machine |
Also Published As
Publication number | Publication date |
---|---|
US4185060A (en) | 1980-01-22 |
DE2910504C2 (de) | 1984-02-02 |
SE7902361L (sv) | 1979-09-18 |
CA1103873A (fr) | 1981-06-30 |
DE2910504A1 (de) | 1979-09-20 |
BR7901667A (pt) | 1979-10-16 |
AU4430479A (en) | 1979-09-20 |
IT7948360A0 (it) | 1979-03-15 |
AU522743B2 (en) | 1982-06-24 |
JPS54127977A (en) | 1979-10-04 |
GB2016359B (en) | 1982-09-02 |
SE434365B (sv) | 1984-07-23 |
JPS585774B2 (ja) | 1983-02-01 |
GB2016359A (en) | 1979-09-26 |
FR2419813B1 (fr) | 1983-12-16 |
IT1114478B (it) | 1986-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |