IT1272198B - Procedimento per la scissione di policarbonati - Google Patents

Procedimento per la scissione di policarbonati

Info

Publication number
IT1272198B
IT1272198B ITRM940203A ITRM940203A IT1272198B IT 1272198 B IT1272198 B IT 1272198B IT RM940203 A ITRM940203 A IT RM940203A IT RM940203 A ITRM940203 A IT RM940203A IT 1272198 B IT1272198 B IT 1272198B
Authority
IT
Italy
Prior art keywords
scission
polycarbonate
procedure
scission procedure
polycarbonate scission
Prior art date
Application number
ITRM940203A
Other languages
English (en)
Inventor
Hans-Josef Buyscon
Norbert Schon
Steffen Kuhling
Heinrich Hahnsen
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 ITRM940203A0 publication Critical patent/ITRM940203A0/it
Publication of ITRM940203A1 publication Critical patent/ITRM940203A1/it
Application granted granted Critical
Publication of IT1272198B publication Critical patent/IT1272198B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C68/00—Preparation of esters of carbonic or haloformic acids
    • C07C68/06—Preparation of esters of carbonic or haloformic acids from organic carbonates
    • 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
    • C08G64/42—Chemical after-treatment
    • 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
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/06—Reactor-distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyethers (AREA)
  • Materials For Medical Uses (AREA)
ITRM940203A 1993-04-13 1994-04-11 Procedimento per la scissione di policarbonati IT1272198B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4312037A DE4312037A1 (de) 1993-04-13 1993-04-13 Verfahren zur Spaltung von Polycarbonaten

Publications (3)

Publication Number Publication Date
ITRM940203A0 ITRM940203A0 (it) 1994-04-11
ITRM940203A1 ITRM940203A1 (it) 1995-10-11
IT1272198B true IT1272198B (it) 1997-06-16

Family

ID=6485369

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM940203A IT1272198B (it) 1993-04-13 1994-04-11 Procedimento per la scissione di policarbonati

Country Status (6)

Country Link
US (1) US5440066A (it)
JP (1) JPH06340591A (it)
BE (1) BE1008317A3 (it)
DE (1) DE4312037A1 (it)
IT (1) IT1272198B (it)
NL (1) NL194888C (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1269884B (it) * 1994-06-03 1997-04-15 Enichem Sintesi Metodo per la rimozione dei contaminanti acidi e salini dalla fase condensata dell'effluente di reazione in un processo per la sintesi di dimetilcarbonato
JP2002121321A (ja) * 2000-10-12 2002-04-23 National Institute Of Advanced Industrial & Technology ポリカーボネート樹脂の油化方法
WO2003035592A1 (fr) * 2001-10-26 2003-05-01 Teijin Limited Procede de depolymerisation de polycarbonate aromatique
US7151189B2 (en) 2003-06-19 2006-12-19 General Electric Company Method and apparatus for waste stream recovery
US8680226B1 (en) 2012-12-21 2014-03-25 Saudi Basic Industries Corporation Method for alcoholysis of acrylonitrile-butadiene-styrene-containing polycarbonate compositions
EP2746249B1 (en) 2012-12-21 2017-06-07 Saudi Basic Industries Corporation Manufacture of dihydroxy aromatic compounds by alcoholysis of flame retardant-containing polycarbonate compositions
US8680227B1 (en) 2012-12-21 2014-03-25 Saudi Basic Industries Corporation Manufacture of dihydroxy aromatic compounds by alcoholysis of polycarbonate-containing compositions
US8846858B2 (en) 2012-12-21 2014-09-30 Saudi Basic Industries Corporation Method for alcoholysis of polycarbonate compositions containing flame retardant or acrylonitrile-butadiene-styrene
CN105301160A (zh) * 2015-11-02 2016-02-03 万特制药(海南)有限公司 一种用气相色谱法分离测定克利贝特中间体化学纯度的方法
EP4253356A4 (en) * 2020-11-27 2024-06-05 Mitsubishi Chem Corp POLYCARBONATE RESIN DECOMPOSITION METHOD, BISPHENOL PRODUCTION METHOD, DIALKYL CARBONATE PRODUCTION METHOD, ARYLALKYL CARBONATE PRODUCTION METHOD, DIARYL CARBONATE PRODUCTION METHOD, RECYCLED POLYCARBONATE RESIN PRODUCING METHOD, EDÉ DE PRODUCTION OF EPOXY RESIN AND METHOD FOR PRODUCING CURED EPOXY RESIN PRODUCT

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155452B (de) * 1961-06-02 1963-10-10 Bayer Ag Verfahren zur Gewinnung aromatischer Dihydroxyverbindungen und Kohlensaeureester durch Spalten von Polycarbonaten aromatischer Dihydroxyverbindungen
DE69009992T2 (de) * 1989-12-28 1995-01-12 Asahi Chemical Ind Kontinuierliches verfahren zur herstellung aromatischer karbonate.
DE4141954A1 (de) * 1991-12-19 1993-06-24 Bayer Ag Verfahren zum spalten von polycarbonaten

Also Published As

Publication number Publication date
DE4312037A1 (de) 1994-10-20
NL9400579A (nl) 1994-11-01
ITRM940203A1 (it) 1995-10-11
US5440066A (en) 1995-08-08
NL194888C (nl) 2003-06-04
NL194888B (nl) 2003-02-03
ITRM940203A0 (it) 1994-04-11
JPH06340591A (ja) 1994-12-13
BE1008317A3 (fr) 1996-04-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970407