BR8604582A - Processo para a efetuacao de reacoes de fosgenacao de refluxo reduzidas - Google Patents
Processo para a efetuacao de reacoes de fosgenacao de refluxo reduzidasInfo
- Publication number
- BR8604582A BR8604582A BR8604582A BR8604582A BR8604582A BR 8604582 A BR8604582 A BR 8604582A BR 8604582 A BR8604582 A BR 8604582A BR 8604582 A BR8604582 A BR 8604582A BR 8604582 A BR8604582 A BR 8604582A
- Authority
- BR
- Brazil
- Prior art keywords
- performing reduced
- phosgenation reactions
- reduced reflux
- reflux
- phosgenation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
- C07C68/02—Preparation of esters of carbonic or haloformic acids from phosgene or haloformates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/778,820 US4649210A (en) | 1985-09-23 | 1985-09-23 | Reducing phosgenation reaction temperatures |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8604582A true BR8604582A (pt) | 1987-05-26 |
Family
ID=25114488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8604582A BR8604582A (pt) | 1985-09-23 | 1986-09-17 | Processo para a efetuacao de reacoes de fosgenacao de refluxo reduzidas |
Country Status (7)
Country | Link |
---|---|
US (1) | US4649210A (pt) |
EP (1) | EP0216266B1 (pt) |
JP (1) | JPS62116544A (pt) |
AU (1) | AU588371B2 (pt) |
BR (1) | BR8604582A (pt) |
CA (1) | CA1256892A (pt) |
DE (1) | DE3668448D1 (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8344092B2 (en) | 2009-06-26 | 2013-01-01 | Idemitsu Kosan Co., Ltd. | Method for producing bischloroformate compound, polycarbonate oligomer having small number of monomers and solution containing bischloroformate compound |
JP5897789B2 (ja) * | 2009-06-26 | 2016-03-30 | 中央化成品株式会社 | ビスクロロホーメート化合物の製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3189640A (en) * | 1958-12-23 | 1965-06-15 | Pittsburgh Plate Glass Co | Chloroformates |
US3646102A (en) * | 1968-08-28 | 1972-02-29 | Idemitsu Kosan Co | Method for continuously preparing polycarbonate oligomer |
US4025489A (en) * | 1975-01-27 | 1977-05-24 | Mobay Chemical Corporation | Utilization of bisphenol-A from the alkaline phase generated in the production of polycarbonates |
US4039569A (en) * | 1976-05-11 | 1977-08-02 | Minerec Corporation | Methyl chloroformate process |
US4089888A (en) * | 1976-07-12 | 1978-05-16 | Idemitsu Petrochemical Co. Ltd. | Method for producing a polycarbonate oligomer |
FR2428463A1 (fr) * | 1978-06-15 | 1980-01-11 | Le Prevost Jacques | Dispositif reactionnel notamment pour la synthese de carbonates organiques |
JPS5552321A (en) * | 1978-10-09 | 1980-04-16 | Mitsubishi Gas Chem Co Inc | Preparation of polycarbonate oligomer |
US4638077A (en) * | 1984-11-29 | 1987-01-20 | General Electric Company | Method for the preparation of chloroformate compositions |
US4601858A (en) * | 1985-06-13 | 1986-07-22 | General Electric Company | Method for preparing bischloroformate compositions |
-
1985
- 1985-09-23 US US06/778,820 patent/US4649210A/en not_active Expired - Fee Related
-
1986
- 1986-09-11 EP EP86112577A patent/EP0216266B1/en not_active Expired
- 1986-09-11 DE DE8686112577T patent/DE3668448D1/de not_active Expired - Fee Related
- 1986-09-17 BR BR8604582A patent/BR8604582A/pt unknown
- 1986-09-18 CA CA000518556A patent/CA1256892A/en not_active Expired
- 1986-09-22 AU AU63012/86A patent/AU588371B2/en not_active Ceased
- 1986-09-22 JP JP61222280A patent/JPS62116544A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0216266B1 (en) | 1990-01-24 |
US4649210A (en) | 1987-03-10 |
AU6301286A (en) | 1987-03-26 |
JPS62116544A (ja) | 1987-05-28 |
EP0216266A3 (en) | 1987-08-26 |
AU588371B2 (en) | 1989-09-14 |
CA1256892A (en) | 1989-07-04 |
DE3668448D1 (de) | 1990-03-01 |
EP0216266A2 (en) | 1987-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B15K | Others concerning applications: alteration of classification |
Ipc: C07C 68/02 (2006.01), C07C 69/96 (2006.0 |