IT1094162B - Processo in continuo per il recupero del policarbonato da sue soluzioni - Google Patents

Processo in continuo per il recupero del policarbonato da sue soluzioni

Info

Publication number
IT1094162B
IT1094162B IT20509/78A IT2050978A IT1094162B IT 1094162 B IT1094162 B IT 1094162B IT 20509/78 A IT20509/78 A IT 20509/78A IT 2050978 A IT2050978 A IT 2050978A IT 1094162 B IT1094162 B IT 1094162B
Authority
IT
Italy
Prior art keywords
polycarbonate
recovery
solutions
continuous process
continuous
Prior art date
Application number
IT20509/78A
Other languages
English (en)
Italian (it)
Other versions
IT7820509A0 (it
Inventor
Gabriele Govoni
Drusco Giovanni Di
Canzio Corazzari
Pierluigi Guardigli
Original Assignee
Montedison Spa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11168001&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1094162(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Montedison Spa filed Critical Montedison Spa
Priority to IT20509/78A priority Critical patent/IT1094162B/it
Publication of IT7820509A0 publication Critical patent/IT7820509A0/it
Priority to JP1795079A priority patent/JPS54122393A/ja
Priority to EP79100514A priority patent/EP0003996B2/en
Priority to DE7979100514T priority patent/DE2964981D1/de
Priority to US06/014,161 priority patent/US4212967A/en
Application granted granted Critical
Publication of IT1094162B publication Critical patent/IT1094162B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3122—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof the material flowing at a supersonic velocity thereby creating shock waves
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/20—General preparatory processes
    • C08G64/205—General preparatory processes characterised by the apparatus used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment
    • C08G64/403—Recovery of the polymer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
IT20509/78A 1978-02-22 1978-02-22 Processo in continuo per il recupero del policarbonato da sue soluzioni IT1094162B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT20509/78A IT1094162B (it) 1978-02-22 1978-02-22 Processo in continuo per il recupero del policarbonato da sue soluzioni
JP1795079A JPS54122393A (en) 1978-02-22 1979-02-20 Continuous recovery of polycarbonic acid ester from solution of same and powder of same obtained by same method
EP79100514A EP0003996B2 (en) 1978-02-22 1979-02-21 Continuous process for the recovery of polycarbonate from solutions of it, and polycarbonate powders thus obtained
DE7979100514T DE2964981D1 (en) 1978-02-22 1979-02-21 Continuous process for the recovery of polycarbonate from solutions of it, and polycarbonate powders thus obtained
US06/014,161 US4212967A (en) 1978-02-22 1979-02-22 Process for continuous recovery of solid polycarbonate from solutions thereof in organic solvents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20509/78A IT1094162B (it) 1978-02-22 1978-02-22 Processo in continuo per il recupero del policarbonato da sue soluzioni

Publications (2)

Publication Number Publication Date
IT7820509A0 IT7820509A0 (it) 1978-02-22
IT1094162B true IT1094162B (it) 1985-07-26

Family

ID=11168001

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20509/78A IT1094162B (it) 1978-02-22 1978-02-22 Processo in continuo per il recupero del policarbonato da sue soluzioni

Country Status (5)

Country Link
US (1) US4212967A (en, 2012)
EP (1) EP0003996B2 (en, 2012)
JP (1) JPS54122393A (en, 2012)
DE (1) DE2964981D1 (en, 2012)
IT (1) IT1094162B (en, 2012)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932737C2 (de) 1979-08-13 1983-04-21 Akzo Gmbh, 5600 Wuppertal Polycarbonat-Polyätherblockcopolymere
IT1127306B (it) * 1979-12-20 1986-05-21 Montedison Spa Processo continuo per il recupero di polimeri da loro lattici
US4423207A (en) * 1980-12-18 1983-12-27 General Electric Company Process for recovery of solid thermoplastic resins from solutions thereof in organic solvents
US4408040A (en) * 1981-05-12 1983-10-04 General Electric Company Slurry granulation-steam stripping process for solvent removal
AU574268B2 (en) * 1981-08-12 1988-06-30 Dow Chemical Company, The Process for converting a thermoplastic polymer into spheroidal agglomerated granules
US4568418A (en) * 1981-08-12 1986-02-04 The Dow Chemical Company Process for converting polymer solutions into granules
DE3429960A1 (de) * 1984-08-16 1986-02-27 Bayer Ag, 5090 Leverkusen Verfahren zur isolierung von thermoplastischen polycarbonaten aus seinen loesungen
DE4224025C2 (de) * 1992-07-21 1996-11-14 Bayer Ag Verfahren zur Isolierung von Polycarbonaten aus ihren Lösungen
WO1994006847A1 (en) * 1992-09-18 1994-03-31 Idemitsu Petrochemical Company Limited Process for producing polycarbonate powder
EP0616002B1 (en) * 1992-09-18 1998-03-04 Idemitsu Petrochemical Co., Ltd. Process for producing polycarbonate powder
EP0673958B1 (en) * 1993-09-21 1999-04-14 Teijin Chemicals, Ltd. Aromatic polycarbonate resin particulate and process for producing the same
US5760160A (en) * 1993-09-21 1998-06-02 Teijin Chemicals Ltd. Aromatic polycarbonate resin granule
US5615831A (en) * 1995-06-05 1997-04-01 General Electric Company Steam precipitation jet
EP0783011A3 (de) * 1996-01-05 1998-07-08 Bayer Ag Verfahren zur Isolierung von teilkristallinem Polycarbonatpulver
DE19608521A1 (de) * 1996-03-06 1997-09-11 Bayer Ag Verfahren zur Herstellung von Polycarbonatagglomerat
US5977294A (en) * 1997-05-13 1999-11-02 Prs, Llc Polymer deformulation by solvent solution filtration
US20080196841A1 (en) * 2007-02-16 2008-08-21 Generon Igs, Inc. Water-based precipitation of polymer solutions
ATE516316T1 (de) 2008-02-13 2011-07-15 Bayer Materialscience Ag Verfahren zur herstellung von polycarbonaten
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
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
KR102307698B1 (ko) 2014-01-24 2021-10-06 코베스트로 도이칠란트 아게 상 계면 방법에 따른 폴리카르보네이트의 제조 방법
WO2016153922A1 (en) 2015-03-20 2016-09-29 Sabic Global Technologies B.V. Improved drying systems
CN111448237B (zh) 2017-12-18 2022-12-23 科思创德国股份有限公司 使用基于氯代烃的有机溶剂制备聚碳酸酯的方法
EP3719052B1 (de) 2019-04-03 2022-03-02 Covestro Deutschland AG Verfahren zur herstellung von polycarbonat mit reduziertem phosgenüberschuss
EP3719051B1 (de) 2019-04-03 2021-11-03 Covestro Deutschland AG Verfahren zur herstellung von polycarbonat-zugabezeitpunkt des kettenabbrechers
WO2022048094A1 (zh) * 2020-09-02 2022-03-10 李华玉 减小并利用吸热过程传热温差的方法
EP3985047A1 (de) 2020-10-13 2022-04-20 Covestro Deutschland AG Verfahren zur herstellung eines polycarbonats nach dem phasengrenzflächenverfahren unter lösungsmittelaustausch
EP4083106B1 (de) 2021-04-30 2024-04-10 Covestro Deutschland AG Verfahren zur herstellung von polycarbonat mit verbesserter nachhaltigkeit
CN114644776B (zh) * 2022-04-29 2023-09-01 聊城鲁西聚碳酸酯有限公司 一种聚碳酸酯粉料回收利用的系统及方法
EP4438586A1 (de) 2023-03-30 2024-10-02 Covestro Deutschland AG Nachhaltige herstellung von bisphenol-a für die produktion von polycarbonat

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191956B (de) * 1962-08-13 1965-04-29 Bayer Ag Verfahren zum Eindampfen von Loesungen von Kunststoffen in organischen Loesungsmitteln
US3505273A (en) * 1967-05-04 1970-04-07 Mobay Chemical Corp Method for reducing the solvent content of a polycarbonate

Also Published As

Publication number Publication date
DE2964981D1 (en) 1983-04-14
US4212967A (en) 1980-07-15
IT7820509A0 (it) 1978-02-22
JPS54122393A (en) 1979-09-21
JPS631333B2 (en, 2012) 1988-01-12
EP0003996B1 (en) 1983-03-09
EP0003996B2 (en) 1988-07-27
EP0003996A1 (en) 1979-09-19

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