FR2390186B1 - - Google Patents

Info

Publication number
FR2390186B1
FR2390186B1 FR7814325A FR7814325A FR2390186B1 FR 2390186 B1 FR2390186 B1 FR 2390186B1 FR 7814325 A FR7814325 A FR 7814325A FR 7814325 A FR7814325 A FR 7814325A FR 2390186 B1 FR2390186 B1 FR 2390186B1
Authority
FR
France
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
FR7814325A
Other versions
FR2390186A1 (fr
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of FR2390186A1 publication Critical patent/FR2390186A1/fr
Application granted granted Critical
Publication of FR2390186B1 publication Critical patent/FR2390186B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/24—Evaporating by bringing a thin layer of the liquid into contact with a heated surface to obtain dry solids
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)
FR7814325A 1977-05-14 1978-05-12 Procede pour concentrer des solutions avec solidification simultanee Granted FR2390186A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2721848A DE2721848C2 (de) 1977-05-14 1977-05-14 Verfahren zum Konzentrieren von Lösungen mit gleichzeitiger Erstarrung

Publications (2)

Publication Number Publication Date
FR2390186A1 FR2390186A1 (fr) 1978-12-08
FR2390186B1 true FR2390186B1 (fr) 1983-09-02

Family

ID=6008945

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814325A Granted FR2390186A1 (fr) 1977-05-14 1978-05-12 Procede pour concentrer des solutions avec solidification simultanee

Country Status (8)

Country Link
US (1) US4318773A (fr)
JP (1) JPS53142376A (fr)
BE (1) BE866991A (fr)
DE (1) DE2721848C2 (fr)
FR (1) FR2390186A1 (fr)
GB (1) GB1590506A (fr)
IT (1) IT1094660B (fr)
NL (1) NL7805187A (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026842C2 (de) * 1980-07-16 1984-02-16 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Doppelschnecken-Entgasungsextruder für thermoplastische Materialien
DE3038973A1 (de) * 1980-10-15 1982-05-27 Bayer Ag, 5090 Leverkusen Verfahren und vorrichtung zum kristallisieren von schmelzen mit gleichzeitiger zerkleinerung
DE3206325C2 (de) * 1982-02-22 1985-10-10 AUTOMATIK Apparate-Maschinenbau GmbH, 8754 Großostheim Mehrwellige, kontinuierlich arbeitende Misch- und Knetmaschine für plastifizierbare Massen
IT8221688V0 (it) * 1982-04-26 1982-04-26 Pomini Farrel Spa Macchina mescolatrice in continuo perfezionata per materie plastiche, ed in particolare per gomma in polvere ed "in forma suddivisa".
DE3778111D1 (de) * 1986-10-24 1992-05-14 Boehringer Ingelheim Kg Verfahren zur herstellung und reinigung thermolabiler verbindungen.
US4980105A (en) * 1989-08-28 1990-12-25 General Electric Company Method for extruder devolatilization of spiro(bis)indane polycarbonates
DE4022232A1 (de) * 1990-07-12 1992-01-16 Bayer Ag Kontinuierliche abscheidung aromatischer polycarbonate in teilkristalliner form aus loesungen in ch(pfeil abwaerts)2(pfeil abwaerts)cl(pfeil abwaerts)2(pfeil abwaerts)
DE4437994C1 (de) * 1994-10-25 1996-07-04 Hoechst Ag Entgasungsvorrichtung und ihre Verwendung
US6150498A (en) * 1996-07-12 2000-11-21 The Dow Chemical Company Polymer recovery
US6833096B2 (en) * 2001-08-29 2004-12-21 General Electric Company Method for removing water and other volatile components from polymer powders
DE10357183A1 (de) 2003-12-06 2005-06-30 Bayer Materialscience Ag Vorrichtung und Verfahren zum Ausdampfen von Monomeren und anderen flüchtigen Bestandteilen aus Polymerschmelzen
WO2005100890A1 (fr) * 2004-03-30 2005-10-27 Clextral Procede de production en continu d'un produit en poudre a partir du produit a l'etat liquide
FR2875589B1 (fr) * 2004-09-22 2007-04-20 Clextral Procede de production en continu d'un produit en poudre a partir du produit a l'etat liquide
FR2890572B1 (fr) * 2005-09-15 2007-12-07 Clextral Soc Par Actions Simpl Procede de preparation d'un produit en poudre.
AR051574A1 (es) * 2004-09-22 2007-01-24 Clextral Procedimiento de preparacion de un producto en polvo
AU2007214341B8 (en) * 2007-08-31 2015-02-19 Sandvik Intellectual Property Ab Rock Bolt
DE102008008842A1 (de) 2008-02-13 2009-08-27 Bayer Materialscience Ag Alkylphenol zur Einstellung des Molekulargewichtes und Polycarbonatzusammensetzungen mit verbesserten Eigenschaften
DE102008008841A1 (de) 2008-02-13 2009-08-20 Bayer Materialscience Ag Verfahren zur Herstellung von Polycarbonaten
ATE516316T1 (de) 2008-02-13 2011-07-15 Bayer Materialscience Ag Verfahren zur herstellung von polycarbonaten
DE102008011473A1 (de) * 2008-02-27 2009-09-03 Bayer Materialscience Ag Verfahren zur Herstellung von Polycarbonat
DE102008012613A1 (de) 2008-03-05 2009-09-10 Bayer Materialscience Ag Verfahren zur Herstellung von Polycarbonat nach dem Phasengrenzflächenverfahren
DE102008023800A1 (de) * 2008-05-15 2009-11-19 Bayer Materialscience Ag Alkylphenol zur Einstellung des Molekulargewichtes und Copolycarbonat mit verbesserten Eigenschaften
DE102009059990A1 (de) 2009-12-22 2011-07-07 Bayer MaterialScience AG, 51373 Verfahren zur Vorrichtung zur Herstellung von Polycarbonat
EP2543628B1 (fr) * 2010-06-02 2015-03-11 Panasonic Corporation Générateur d'hydrogène
JP6120302B2 (ja) * 2011-02-02 2017-04-26 東レ株式会社 二軸押出機、それを用いた熱可塑性樹脂フィルムの製造方法
KR102307698B1 (ko) 2014-01-24 2021-10-06 코베스트로 도이칠란트 아게 상 계면 방법에 따른 폴리카르보네이트의 제조 방법
US20170080354A1 (en) * 2015-01-20 2017-03-23 Artisan Industries Inc. Thin-Film Evaporator with Screw Outfeed
US10308779B2 (en) 2015-10-30 2019-06-04 Nike, Inc. Method of foaming a milled precursor
CN109016608A (zh) * 2018-08-17 2018-12-18 海南省先进天然橡胶复合材料工程研究中心有限公司 一种适用于天然橡胶脱水的双螺杆挤出机
EP3719051B1 (fr) 2019-04-03 2021-11-03 Covestro Deutschland AG Procédé d'établissement du moment opportun d'ajout du polycarbonate de l'agent d'interruption de chaîne
EP3719052B1 (fr) 2019-04-03 2022-03-02 Covestro Deutschland AG Procédé de production de polycarbonate à excès réduit de phosgène
EP3985047A1 (fr) 2020-10-13 2022-04-20 Covestro Deutschland AG Procédé de fabrication d'un polycarbonate selon le procédé d'interphase par échange des solvants
EP4083106B1 (fr) 2021-04-30 2024-04-10 Covestro Deutschland AG Processus de production de polycarbonate à durabilité améliorée
EP4438586A1 (fr) 2023-03-30 2024-10-02 Covestro Deutschland AG Préparation durable de bisphénol-a pour la production de polycarbonate

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078511A (en) * 1960-03-31 1963-02-26 Welding Engineers Treatment of plastic materials
FR1320227A (fr) * 1961-02-17 1963-03-08 Int Basic Economy Corp Procédé, appareil et installation pour éliminer l'humidité des élastomères nonrigides
DE1779922A1 (de) * 1961-02-17 1972-01-13 Internat Basic Economy Corp Vorrichtung zum Entfernen von Fluessigkeit aus Elastomeren
DE1495730B2 (de) * 1963-07-24 1971-03-18 Farbenfabriken Bayer AG, 5090 Le verkusen Verfahren zum herstellen thermoplastischer polykondensations produkte
DE1502335B2 (de) * 1965-02-13 1971-10-21 Werner & Pfleiderer, 7000 Stuttgart Schneckenstrangprese fuer die verarbeitung von kunststoff
NL134945C (fr) * 1966-05-06 1900-01-01
CH450696A (de) * 1967-06-13 1968-01-31 Buss Ag Misch- und Kneteinrichtung
US3477491A (en) * 1968-01-16 1969-11-11 Shell Oil Co Wiped-film evaporator
DE2027564A1 (de) * 1969-06-05 1970-12-10 International Basic Economy Corp., New York, N.Y. (V.St.A.) Verfahren und Vorrichtung zur Entfernung von Flüssigkeit aus einem Polymermaterial
DE2004517C3 (de) * 1970-02-02 1979-08-09 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Polycarbonat-LSsungen
DE2005691A1 (de) * 1970-02-07 1971-08-12 Bayer Ag Verfahren zur Herstellung selbstver netzbarer hochreaktiver Pulverlackbinde mittel
US3738409A (en) * 1971-01-27 1973-06-12 Welding Engineers Apparatus for flash-concentrating viscous liquids
DE2107927B1 (de) * 1971-02-19 1972-07-20 Fa Werner & Pfleiderer Verfahren zum kontinuierlichen Aufbereiten und Granulieren von duroplastischen Preßmassen
US3981658A (en) * 1972-01-14 1976-09-21 International Basic Economy Corporation Screw type apparatus for drying moist polymeric materials
US3874090A (en) * 1972-09-15 1975-04-01 Polysar Ltd Method and apparatus for drying polymeric materials
US3834440A (en) * 1972-09-15 1974-09-10 Polymer Corp Method for drying polymeric materials
DE2304361A1 (de) * 1973-01-30 1974-08-08 Werner & Pfleiderer Verfahren und vorrichtung zum trocknen und aufbereiten von in fluessiger phase gewonnenen kunststoffen
US3997406A (en) * 1973-10-19 1976-12-14 Kostas Savas Arvanitakis Evaporating apparatus
DE2612827C3 (de) * 1976-03-26 1982-11-18 Werner & Pfleiderer, 7000 Stuttgart Schneckenstrangpresse zur kontinuierlichen Aufbereitung und Entgasung von Elastomeren und Polymeren mit einer Viskosität über 1000 d Pa s

Also Published As

Publication number Publication date
BE866991A (fr) 1978-11-13
IT1094660B (it) 1985-08-02
IT7823386A0 (it) 1978-05-12
DE2721848C2 (de) 1982-12-02
GB1590506A (en) 1981-06-03
FR2390186A1 (fr) 1978-12-08
US4318773A (en) 1982-03-09
JPS617841B2 (fr) 1986-03-10
JPS53142376A (en) 1978-12-12
NL7805187A (nl) 1978-11-16
DE2721848A1 (de) 1978-11-16

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Legal Events

Date Code Title Description
ST Notification of lapse