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)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • General Chemical & Material Sciences (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
CN1481347A (zh) * 2001-10-26 2004-03-10 帝人株式会社 芳香族聚碳酸酯的解聚方法
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
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
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
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
WO2022113847A1 (ja) * 2020-11-27 2022-06-02 三菱ケミカル株式会社 ポリカーボネート樹脂の分解方法、ビスフェノールの製造方法、炭酸ジアルキルの製造方法、炭酸アルキルアリールの製造方法、炭酸ジアリールの製造方法、再生ポリカーボネート樹脂の製造方法、エポキシ樹脂の製造方法及びエポキシ樹脂硬化物の製造方法

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
KR940005956B1 (ko) * 1989-12-28 1994-06-25 아사히가세이고오교 가부시끼가이샤 방향족 카르보네이트의 연속 제조방법
DE4141954A1 (de) * 1991-12-19 1993-06-24 Bayer Ag Verfahren zum spalten von polycarbonaten

Also Published As

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

Similar Documents

Publication Publication Date Title
DE69413427D1 (de) Geformte Kopfbänderung
FI103862B (fi) Suojain
BR9403107A (pt) Escova de dentes
ATA146094A (de) Windsichter
IT1272198B (it) Procedimento per la scissione di policarbonati
DE69407633D1 (de) Extruder
DE69417466D1 (de) Extruder
DE69419620D1 (de) Fluorierungsverfahren
ATA194593A (de) Sportschuh
ATA212793A (de) Sportschuh
ATA179094A (de) Kettenschloss
IT1272223B (it) Procedimento per la produzione di policarbonato
DK102193A (da) Krydshoved
DE59408129D1 (de) Strangpressverfahren
IT230757Y1 (it) Cannula per fleboipodermoclisi
IT230756Y1 (it) Cannula per fleboipodermoclisi
KR950005495U (ko) 조립식 가구
KR950015118U (ko) 약력 측정기
KR950001475U (ko) 창호틀
FIU930021U0 (fi) Verktygsback
SE9303911D0 (sv) Huvudbonad
IT230849Y1 (it) Contenitore-dosatore sterile per microclismi
FI934699A0 (fi) Monteringssystem foer en lastbaerares ben
BR9301563A (pt) Generoso - bem bolado
SE9400337D0 (sv) Engångssvettband

Legal Events

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

Effective date: 19970407