CA1248682A - Process for the isolation of thermoplastic polycarbonates from their solutions - Google Patents

Process for the isolation of thermoplastic polycarbonates from their solutions

Info

Publication number
CA1248682A
CA1248682A CA000488659A CA488659A CA1248682A CA 1248682 A CA1248682 A CA 1248682A CA 000488659 A CA000488659 A CA 000488659A CA 488659 A CA488659 A CA 488659A CA 1248682 A CA1248682 A CA 1248682A
Authority
CA
Canada
Prior art keywords
polycarbonate
benzene
mixture
alkylbenzene
process according
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
CA000488659A
Other languages
English (en)
French (fr)
Inventor
Karl-Heinrich Meyer
Uwe Hucks
August Horsthemke
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
Application granted granted Critical
Publication of CA1248682A publication Critical patent/CA1248682A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
CA000488659A 1984-08-16 1985-08-14 Process for the isolation of thermoplastic polycarbonates from their solutions Expired CA1248682A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3429960.2 1984-08-16
DE19843429960 DE3429960A1 (de) 1984-08-16 1984-08-16 Verfahren zur isolierung von thermoplastischen polycarbonaten aus seinen loesungen

Publications (1)

Publication Number Publication Date
CA1248682A true CA1248682A (en) 1989-01-10

Family

ID=6243058

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000488659A Expired CA1248682A (en) 1984-08-16 1985-08-14 Process for the isolation of thermoplastic polycarbonates from their solutions

Country Status (5)

Country Link
US (1) US4631338A (en, 2012)
EP (1) EP0175118B1 (en, 2012)
JP (1) JPS6155118A (en, 2012)
CA (1) CA1248682A (en, 2012)
DE (2) DE3429960A1 (en, 2012)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2528838B2 (ja) * 1986-10-14 1996-08-28 ソニー株式会社 光学式情報記録媒体
DE3812049A1 (de) * 1988-04-12 1989-10-26 Bayer Ag Verfahren zur herstellung von aromatischen polycarbonaten, aromatischen polyestercarbonaten und aromatischen polyestern
DE3819943A1 (de) * 1988-06-11 1990-02-08 Bayer Ag Verfahren zur herstellung von aromatischen polycarbonaten, aromatischen polyestercarbonaten und aromatischen polyestern
ATE516316T1 (de) 2008-02-13 2011-07-15 Bayer Materialscience Ag Verfahren zur herstellung von polycarbonaten
DE102008008841A1 (de) 2008-02-13 2009-08-20 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
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
EP2256146A1 (de) 2009-05-30 2010-12-01 Bayer MaterialScience AG Polycarbonate mit extrem hoher Reinheit und guter Eigenfarbe und thermischer Beständigkeit sowie eine Vorrichtung und ein Verfahren zu ihrer Herstellung
US10021027B2 (en) 2013-04-30 2018-07-10 Comcast Cable Communications, Llc Network validation with dynamic tunneling
KR102307698B1 (ko) 2014-01-24 2021-10-06 코베스트로 도이칠란트 아게 상 계면 방법에 따른 폴리카르보네이트의 제조 방법
EP2965889A1 (de) 2014-07-11 2016-01-13 Covestro Deutschland AG Mischelemente mit verbesserter Dispergierwirkung
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
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
EP4438586A1 (de) 2023-03-30 2024-10-02 Covestro Deutschland AG Nachhaltige herstellung von bisphenol-a für die produktion von polycarbonat

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB808488A (en) * 1955-12-21 1959-02-04 Bayer Ag Process for the production of high molecular weight polycarbonates
GB861918A (en) * 1958-05-19 1961-03-01 Onderzoekings Inst Res Preparation of polycarbonate in particulate form
US3112292A (en) * 1958-06-23 1963-11-26 Bayer Ag Production of linear crystallized polycarbonates
US3022271A (en) * 1960-08-10 1962-02-20 Pittsburgh Plate Glass Co Finishing of solid diphenolic polycarbonates
NL250638A (en, 2012) * 1959-04-25
DE1191956B (de) * 1962-08-13 1965-04-29 Bayer Ag Verfahren zum Eindampfen von Loesungen von Kunststoffen in organischen Loesungsmitteln
DE1213610B (de) * 1962-08-18 1966-03-31 Bayer Ag Verfahren zur Gewinnung hochmolekularer, linearer, thermoplastischer Polycarbonate in fester Form aus Loesungen
DE1209741B (de) * 1963-03-28 1966-01-27 Bayer Ag Gewinnung thermoplastischer Polycarbonate aus Loesungen
US3264264A (en) * 1963-05-22 1966-08-02 Mobay Chemical Corp Polycarbonate recovery system
US3264263A (en) * 1963-05-22 1966-08-02 Mobay Chemical Corp Polycarbonate recovery system
US3264262A (en) * 1963-05-22 1966-08-02 Mobay Chemical Corp Polycarbonate recovery system
US3454526A (en) * 1964-12-10 1969-07-08 Bayer Ag Method for solution spinning polycarbonate filaments
US3505273A (en) * 1967-05-04 1970-04-07 Mobay Chemical Corp Method for reducing the solvent content of a polycarbonate
US4184911A (en) * 1977-06-13 1980-01-22 Mitsubishi Gas Chemical Company Process for producing powdery polycarbonate from a polycarbonate solution
IT1094162B (it) * 1978-02-22 1985-07-26 Montedison Spa Processo in continuo per il recupero del policarbonato da sue soluzioni
NL7903332A (nl) * 1979-04-26 1980-10-28 Gen Electric Thermoplastisch vormmengsel en werkwijze ter bereiding daarvan.

Also Published As

Publication number Publication date
JPH0556771B2 (en, 2012) 1993-08-20
DE3429960A1 (de) 1986-02-27
DE3565115D1 (en) 1988-10-27
US4631338A (en) 1986-12-23
EP0175118A1 (de) 1986-03-26
JPS6155118A (ja) 1986-03-19
EP0175118B1 (de) 1988-09-21

Similar Documents

Publication Publication Date Title
CA1248682A (en) Process for the isolation of thermoplastic polycarbonates from their solutions
US5521278A (en) Integrated process for the manufacture of lactide
US5574129A (en) Process for producing lactic acid polymers and a process for the direct production of shaped articles from lactic acid polymers
KR20050036847A (ko) Ｐｅｔ 보틀의 리사이클 방법
JPH10513220A (ja) 食品接触用途に再使用するための使用後のポリエステルからの夾雑物の浸出
US6458920B1 (en) Purification of solutions containing polycarbonate
US3267075A (en) Process for producing polycarbonates
US3213060A (en) Polycarbonate purification
EP3606980B1 (en) A process to prepare a cyclic oligomer and a cyclic oligomer obtainable thereby and a process to polymerize it
JPS62272404A (ja) 重縮合物のフイルムを電気絶縁性フイルムとして使用する方法
US4663433A (en) Separation of cyclic oligomeric carbonate from high molecular weight polycarbonate
EP0434888A2 (en) Process for producing an aromatic polycarbonate
US4916257A (en) Process for the purification of 2-hydroxynaphthalene-6-carboxylic acid
NO130064B (en, 2012)
US3470133A (en) Water washing polyesters of carbonic acid and diphenols
PL100623B1 (pl) Sposob otrzymywania sproszkowanego politereftalanu etylenowego
US6414198B1 (en) Method for producing bisphenol-A
US3859245A (en) Process for the production of polycarbonate solutions
US5830977A (en) Process for the isolation of partially crystalline polycarbonate powder
Amick et al. Preparation and water sorption properties of cellulose-polypropylene glycol block copolymers
US4367330A (en) Process for the preparation of aromatic polycarbonates by the phase boundary process
US4431798A (en) Preparation of poly(p-methylenebenzoate) from p-hydroxymethylbenzoic acid
US3509094A (en) Process for making polycarbonates
KR920001227B1 (ko) 아미드계 용매가 포함된 혼합용매의 분리정제방법
US5248763A (en) Isolation of poly(ester)carbonates from methylene chloride using carbon dioxide fluid

Legal Events

Date Code Title Description
MKEX Expiry