FR2402524A1 - Procede de recuperation par extrusion de matieres polymeres, notamment de polymeres du chloroprene, de leurs dispersions dans des liquides - Google Patents

Procede de recuperation par extrusion de matieres polymeres, notamment de polymeres du chloroprene, de leurs dispersions dans des liquides

Info

Publication number
FR2402524A1
FR2402524A1 FR7826003A FR7826003A FR2402524A1 FR 2402524 A1 FR2402524 A1 FR 2402524A1 FR 7826003 A FR7826003 A FR 7826003A FR 7826003 A FR7826003 A FR 7826003A FR 2402524 A1 FR2402524 A1 FR 2402524A1
Authority
FR
France
Prior art keywords
dispersions
liquid
extruder
zone
polymers
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
Application number
FR7826003A
Other languages
English (en)
French (fr)
Other versions
FR2402524B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of FR2402524A1 publication Critical patent/FR2402524A1/fr
Application granted granted Critical
Publication of FR2402524B1 publication Critical patent/FR2402524B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/14—Treatment of polymer emulsions
    • C08F6/22—Coagulation
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/14—Coagulation
    • 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
    • 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
    • Y10S528/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S528/931—Physical treatment of natural rubber or natural rubber containing material or chemical treatment of non-rubber portion thereof, e.g. extraction of rubber from milk weed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
FR7826003A 1977-09-12 1978-09-11 Procede de recuperation par extrusion de matieres polymeres, notamment de polymeres du chloroprene, de leurs dispersions dans des liquides Granted FR2402524A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/832,354 US4136251A (en) 1977-09-12 1977-09-12 Extrusion process for recovery of polymers from their dispersions in liquids

Publications (2)

Publication Number Publication Date
FR2402524A1 true FR2402524A1 (fr) 1979-04-06
FR2402524B1 FR2402524B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1984-05-11

Family

ID=25261408

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826003A Granted FR2402524A1 (fr) 1977-09-12 1978-09-11 Procede de recuperation par extrusion de matieres polymeres, notamment de polymeres du chloroprene, de leurs dispersions dans des liquides

Country Status (5)

Country Link
US (1) US4136251A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5450587A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2839306A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2402524A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2003889B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363671A (en) * 1980-03-18 1982-12-14 New York University Apparatus for chemical conversion of materials
JPS5740520A (en) * 1980-08-22 1982-03-06 Polyplastics Co Continuous polymerization
DE3134479C2 (de) * 1981-09-01 1988-12-22 Josef A. 7144 Asperg Blach Vorrichtung zum kontinuierlichen Aufschmelzen und Mischen von Kunststoffen
US4875847A (en) * 1984-04-23 1989-10-24 Wenger Manufacturing, Inc. Twin-screw extruder having respective conical nose screw sections
DE3500067C2 (de) * 1985-01-03 1986-10-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Verfahren zur Herstellung verbrennbarer Hülsen auf Nitrozellulose-Basis als Munitionsformteil für Rohrwaffen
EP0264926B1 (de) * 1986-10-24 1992-04-08 Boehringer Ingelheim Kg Verfahren zur Herstellung und Reinigung thermolabiler Verbindungen
US5014882A (en) * 1989-05-19 1991-05-14 Marlen Research Corporation Pivot-action portioning apparatus and method
US5205973A (en) * 1989-10-31 1993-04-27 E. I. Du Pont De Nemours And Company Precoagulation process for incorporating organic fibrous fillers
US4970037A (en) * 1989-10-31 1990-11-13 E. I. Du Pont De Nemours And Company Process for the manufacture of photosensitive materials having a low heat history
US4943402A (en) * 1989-10-31 1990-07-24 E. I. Du Pont De Nemours And Company Process for removing chloroprene dimers from polychloroprene
RU2075487C1 (ru) * 1989-10-31 1997-03-20 Е.И.Дюпон Де Немур Энд Компани Способ получения эластомера
US5205972A (en) * 1989-10-31 1993-04-27 E. I. Du Pont De Nemours And Company Process for incorporating organic fibrous fillers in elastomers
US5025044A (en) * 1989-10-31 1991-06-18 E. I. Du Pont De Nemours And Company Extrusion isolation of blends of rubber and asphalt
EP0426019B1 (en) * 1989-10-31 2000-02-09 E.I. du Pont de Nemours and Company Precoagulation process for incorporating organic fibrous fillers in SBR
JPH044014U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1990-04-24 1992-01-14
DE4031896A1 (de) * 1990-10-08 1992-04-09 Wolf Woco & Co Franz J Verfahren zur kurzzeitpolymerisation und formartikelherstellung
DE4131872A1 (de) * 1991-09-25 1993-04-08 Basf Ag Verfahren zur herstellung schlagzaehmodifizierter thermoplaste
US5306452A (en) * 1993-03-23 1994-04-26 Apv Chemical Machinery Inc. Devolatilizing and/or processing systems and methods
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
DE59600302D1 (de) * 1995-03-27 1998-08-06 Basf Ag Verfahren zur Herstellung von Thermoplasten
US5656757A (en) * 1995-08-10 1997-08-12 Alliedsignal Inc. Monomer recovery from multi-component materials
US20100062093A1 (en) * 2008-09-11 2010-03-11 Wenger Manufacturing, Inc. Method and apparatus for producing fully cooked extrudates with significantly reduced specific mechanical energy inputs
WO2011068525A1 (en) * 2009-12-04 2011-06-09 Dow Global Technologies Inc. Extruder screw
EP2548897B1 (en) 2011-07-22 2014-05-14 Arkema Inc. Fluoropolymer composition
CA2898257C (en) 2013-01-17 2021-10-05 Greenmantra Recycling Technologies Ltd. Catalytic depolymerisation of polymeric materials
US9939197B2 (en) 2013-01-25 2018-04-10 Calaeris Energy + Environment Ltd. Turbulent vacuum thermal separation methods and systems
US9713893B2 (en) * 2013-07-09 2017-07-25 Wenger Manufacturing, Inc. Method of preconditioning comestible materials using steam/water static mixer
KR101777463B1 (ko) * 2014-09-03 2017-09-12 주식회사 엘지화학 수지 분체의 제조방법 및 이를 위한 일체형 응집기
US10472487B2 (en) 2015-12-30 2019-11-12 Greenmantra Recycling Technologies Ltd. Reactor for continuously treating polymeric material
CA3013953A1 (en) 2016-02-13 2017-08-17 Greenmantra Recycling Technologies Ltd. Polymer-modified asphalt with wax additive
AU2017239181B2 (en) 2016-03-24 2020-12-10 Greenmantra Recycling Technologies Ltd. Wax as a melt flow modifier and processing aid for polymers
CN114479173A (zh) 2016-09-29 2022-05-13 绿色颂歌再生科技有限公司 用于处理聚苯乙烯材料的反应器
US10723858B2 (en) 2018-09-18 2020-07-28 Greenmantra Recycling Technologies Ltd. Method for purification of depolymerized polymers using supercritical fluid extraction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903517A (en) * 1959-07-09 1962-08-15 Phillips Petroleum Co Method and apparatus for extruding plastic material to reduce the volatiles content
US3742093A (en) * 1970-04-08 1973-06-26 Welding Engineers Method of separating an insoluble liquid from polymer composition
US3993292A (en) * 1974-12-13 1976-11-23 W Bar E, Incorporated Apparatus for coagulating polymer latex emulsions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL258615A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1959-12-01 1900-01-01
US3160620A (en) * 1962-07-10 1964-12-08 Du Pont Coagulation of chloroprene polymer latices and isolation of the polymer therefrom
GB1121714A (en) 1966-06-01 1968-07-31 Buna Chem Werke Veb Process for coagulation of rubber latexes
US3917507A (en) * 1971-02-22 1975-11-04 Welding Engineers Countercurrent combined liquid and vapor stripping in screw devolatilizer
BE790700A (fr) * 1971-11-18 1973-04-27 Rohm & Haas Perfectionnements aux procedes pour purifier et melanger des polymeres
US3981854A (en) * 1975-06-02 1976-09-21 E. I. Du Pont De Nemours & Company Chloroprene polymer isolation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903517A (en) * 1959-07-09 1962-08-15 Phillips Petroleum Co Method and apparatus for extruding plastic material to reduce the volatiles content
US3742093A (en) * 1970-04-08 1973-06-26 Welding Engineers Method of separating an insoluble liquid from polymer composition
US3993292A (en) * 1974-12-13 1976-11-23 W Bar E, Incorporated Apparatus for coagulating polymer latex emulsions

Also Published As

Publication number Publication date
US4136251A (en) 1979-01-23
GB2003889B (en) 1982-09-02
GB2003889A (en) 1979-03-21
DE2839306C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-02-23
JPS5450587A (en) 1979-04-20
DE2839306A1 (de) 1979-03-22
JPS6344767B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-09-06
FR2402524B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1984-05-11

Similar Documents

Publication Publication Date Title
FR2402524A1 (fr) Procede de recuperation par extrusion de matieres polymeres, notamment de polymeres du chloroprene, de leurs dispersions dans des liquides
EP0426023B1 (en) Process for removing chloroprene dimers from polychloroprene
US3738409A (en) Apparatus for flash-concentrating viscous liquids
US3038202A (en) Method and apparatus for making multiple tube structures by extrusion
US3907961A (en) Flexible cylinder for cooling an extruded pipe
TWI611903B (zh) 自含聚合物介質移除揮發性組分之方法及用於此目的之去揮發裝置及具有螺距t的螺桿元件之用途
GB1250940A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA2741849C (en) Diaphragm pumps and transporting drag reducers
AU5720586A (en) Early progressive junction extrusion system
GB1361461A (en) Method and apparatus for filterin flowable material
FR2406519A1 (fr) Procede d'extrusion
GB1522055A (en) Extrusion process
KR890003562A (ko) 펑크용 시일런트를 압출하는 방법 및 고무상 라미네이트를 형성하는 방법
EP0529333A1 (en) Continuous kneading apparatus
JPH07156248A (ja) 熱可塑性合成樹脂またはゴム用の押出し機の溶融物シール装置
US4817994A (en) Aseptic pipe joint
US5025044A (en) Extrusion isolation of blends of rubber and asphalt
GB1100797A (en) Method of automatically cleaning a pipe, and fluid flow apparatus for carrying out the method
US1444069A (en) Flow accelerator for pipe-line sand conveyers
DE68910624D1 (de) Vorrichtung zur Herstellung von Rohren mit ringförmigen Rippen.
OA07481A (fr) Matière destinée à former un joint entre deux corps, à l'exterieur de leur interface, procédés pour réaliser des ensembles avec cette matière ensembles ainsi obtenus.
US2740648A (en) Mechanical bellows seal
US7093973B2 (en) Sparging device and method for adding a processing fluid to a foodstuff
DK0644822T3 (da) Forbedringer af eller relateret til fremgangsmåder og apparatur til kontinuerlig dannelse af et ekstruderet produkt
ES2034105T3 (es) Procedimiento para acondicionar juntas en tubos de hormigon y dispositivo para ejecutar este procedimiento.