ITRM940203A0 - Procedimento per la scissione di policarbonati - Google Patents
Procedimento per la scissione di policarbonatiInfo
- Publication number
- ITRM940203A0 ITRM940203A0 ITRM940203A ITRM940203A ITRM940203A0 IT RM940203 A0 ITRM940203 A0 IT RM940203A0 IT RM940203 A ITRM940203 A IT RM940203A IT RM940203 A ITRM940203 A IT RM940203A IT RM940203 A0 ITRM940203 A0 IT RM940203A0
- Authority
- IT
- Italy
- Prior art keywords
- polycarbonates
- splitting
- procedure
- Prior art date
Links
- 229920000515 polycarbonate Polymers 0.000 title 1
- 239000004417 polycarbonate Substances 0.000 title 1
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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polyethers (AREA)
- Materials For Medical Uses (AREA)
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 true ITRM940203A0 (it) | 1994-04-11 |
ITRM940203A1 ITRM940203A1 (it) | 1995-10-11 |
IT1272198B 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)
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 |
US20040054238A1 (en) * | 2001-10-26 | 2004-03-18 | Tetsuo Ban | Method for depolymerizing aromatic polycarbonate |
US7151189B2 (en) * | 2003-06-19 | 2006-12-19 | General Electric Company | Method and apparatus for waste stream recovery |
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 |
US8680226B1 (en) | 2012-12-21 | 2014-03-25 | Saudi Basic Industries Corporation | Method for alcoholysis of acrylonitrile-butadiene-styrene-containing polycarbonate 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 |
JPWO2022113847A1 (it) | 2020-11-27 | 2022-06-02 |
Family Cites Families (3)
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 |
ATE107273T1 (de) * | 1989-12-28 | 1994-07-15 | Asahi Chemical Ind | Kontinuierliches verfahren zur herstellung aromatischer karbonate. |
DE4141954A1 (de) * | 1991-12-19 | 1993-06-24 | Bayer Ag | Verfahren zum spalten von polycarbonaten |
-
1993
- 1993-04-13 DE DE4312037A patent/DE4312037A1/de not_active Withdrawn
-
1994
- 1994-04-04 US US08/222,777 patent/US5440066A/en not_active Expired - Fee Related
- 1994-04-07 JP JP6092849A patent/JPH06340591A/ja active Pending
- 1994-04-11 IT ITRM940203A patent/IT1272198B/it active IP Right Grant
- 1994-04-12 NL NL9400579A patent/NL194888C/nl not_active IP Right Cessation
- 1994-04-12 BE BE9400376A patent/BE1008317A3/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT1272198B (it) | 1997-06-16 |
NL194888B (nl) | 2003-02-03 |
US5440066A (en) | 1995-08-08 |
JPH06340591A (ja) | 1994-12-13 |
BE1008317A3 (fr) | 1996-04-02 |
ITRM940203A1 (it) | 1995-10-11 |
NL9400579A (nl) | 1994-11-01 |
NL194888C (nl) | 2003-06-04 |
DE4312037A1 (de) | 1994-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69420974T2 (de) | Separationsverfahren | |
DE69417838D1 (de) | Rasiergerät | |
ITMI931295A0 (it) | Processo per la preparazione di cumene | |
IT1283314B1 (it) | Processo per la preparazione di policarbonati copolieteri polioli | |
ITRM940203A0 (it) | Procedimento per la scissione di policarbonati | |
DE69408059D1 (de) | Zentrifuge | |
ITMI931680A0 (it) | Procedimento per la preparazione di alcansolfonammidi | |
ITRM930758A0 (it) | Procedimento per la produzione di policarbonati. | |
ITRM930502A0 (it) | Procedimento per la produzione di r amminocarnitina e s amminocarnitina. | |
IT1269916B (it) | Procedimento migliorato per la sintesi di dimetilcarbonato | |
ITRM930141A0 (it) | Procedimento per la produzione di perfluoroalchilsolfonilfloruri. | |
ITRM930808A1 (it) | Procedimento per la produzione di policarbonati. | |
ITRM940648A0 (it) | Procedimento per la idrodealogenazione di benzeni alogenati | |
IT1272223B (it) | Procedimento per la produzione di policarbonato | |
ITRM930445A0 (it) | Procedimento per la produzione di policarbonati. | |
ITRM940140A0 (it) | Procedimento e dispositivo per la produzione di potassa. | |
DE9304723U1 (de) | Zentrifuge | |
IT1269226B (it) | Procedimento di colata | |
IT1231506B (it) | Procedimento per la purificazione di polieteri polioli. | |
ITMI931785A1 (it) | Valilamidi di 7alfa-amino-1, 1-dioxo-cefem | |
ITMI930340A1 (it) | Procedimento per la preparazione di 5-oxo-2-pirrolidoncarbossilato di piridossina | |
ITMI932694A0 (it) | Procedimento per la preparazione di 2-idrossi-1-4-noftochinoni | |
ITMI932212A1 (it) | Procedimento per la produzione di acetoncianidrina | |
ITRM940151A0 (it) | Impiego di esteruretani per la riconcia. | |
ITMI931403A0 (it) | Processo per la scissione di acetoncianidrina |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970407 |