BR8804491A - Processo de preparacao de policarbonato - Google Patents
Processo de preparacao de policarbonatoInfo
- Publication number
- BR8804491A BR8804491A BR8804491A BR8804491A BR8804491A BR 8804491 A BR8804491 A BR 8804491A BR 8804491 A BR8804491 A BR 8804491A BR 8804491 A BR8804491 A BR 8804491A BR 8804491 A BR8804491 A BR 8804491A
- Authority
- BR
- Brazil
- Prior art keywords
- preparation process
- polycarbonate preparation
- polycarbonate
- preparation
- Prior art date
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
-
- 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
- C08G64/20—General preparatory processes
- C08G64/22—General preparatory processes using carbonyl halides
- C08G64/24—General preparatory processes using carbonyl halides and phenols
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222834A JP2528331B2 (ja) | 1987-09-05 | 1987-09-05 | ポリカ―ボネ―トの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8804491A true BR8804491A (pt) | 1989-03-28 |
Family
ID=16788641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8804491A BR8804491A (pt) | 1987-09-05 | 1988-09-01 | Processo de preparacao de policarbonato |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0306838A3 (pt) |
JP (1) | JP2528331B2 (pt) |
KR (1) | KR910008323B1 (pt) |
BR (1) | BR8804491A (pt) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4118232A1 (de) * | 1991-06-04 | 1992-12-10 | Bayer Ag | Kontinuierliche herstellung von polycarbonaten |
DE4121212A1 (de) * | 1991-06-27 | 1993-01-14 | Bayer Ag | Verfahren zur herstellung von polycarbonat |
DE4121213A1 (de) * | 1991-06-27 | 1993-01-14 | Bayer Ag | Kontinuierliche herstellung von polycarbonaten |
WO1994018258A1 (en) * | 1991-07-02 | 1994-08-18 | The Dow Chemical Company | Process for preparing polycarbonate having reduced carbonate byproduct content |
US5412060A (en) * | 1991-08-20 | 1995-05-02 | Bayer Aktiengesellschaft | Process for the production of polycarbonate of constant viscosity |
DE4127512C2 (de) * | 1991-08-20 | 1995-02-23 | Bayer Ag | Verfahren zur Herstellung von Polycarbonat mit konstanter Viskosität |
DE4129545C1 (en) * | 1991-09-05 | 1993-04-15 | Bayer Ag, 5090 Leverkusen, De | Prodn. of finely divided aq. sodium bis:phenolate - by mixing bisphenol=A with sodium hydroxide to ppte. prod. and stirring vigorously |
DE4129546C1 (pt) * | 1991-09-05 | 1993-04-15 | Bayer Ag, 5090 Leverkusen, De | |
DE4239131C2 (de) * | 1992-11-20 | 1998-04-09 | Bayer Ag | Verfahren zur Herstellung von Polycarbonaten |
US5508375A (en) * | 1992-12-10 | 1996-04-16 | Bayer Aktiengesellschaft | Process for the preparation of polycarbonates |
DE4241619C2 (de) * | 1992-12-10 | 1998-04-09 | Bayer Ag | Verfahren zur Herstellung von Polycarbonaten |
KR19980021841A (ko) * | 1996-09-19 | 1998-06-25 | 구자홍 | 가스연소기구의 점화장치 |
KR100540435B1 (ko) * | 1997-06-17 | 2006-03-22 | 주식회사 엘지이아이 | 가스연소기기의 점화장치 |
AU2001249560A1 (en) * | 2000-05-01 | 2001-11-12 | General Electric Company | Method and apparatus for manufacture of polycarbonate using an interfacial process |
US6780961B2 (en) * | 2002-10-16 | 2004-08-24 | General Electric Company | Method of making polycarbonate |
WO2010110984A1 (en) * | 2009-03-24 | 2010-09-30 | Dow Global Technologies Inc. | Method for monitoring monomer concentration in interfacial polycarbonate manufacturing process |
KR102047981B1 (ko) * | 2017-06-09 | 2019-11-22 | 주식회사 엘지화학 | 미반응 단량체 잔류량의 예측 방법 및 폴리카보네이트 수지의 제조 방법 |
CN110577633B (zh) * | 2019-09-11 | 2023-12-19 | 利华益维远化学股份有限公司 | 一种聚碳酸酯生产原料预处理系统及方法 |
CN115212782B (zh) * | 2021-04-19 | 2023-08-29 | 甘肃银光聚银化工有限公司 | 一种聚碳酸酯配料的方法及其自控系统 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4999596A (pt) * | 1973-01-25 | 1974-09-20 |
-
1987
- 1987-09-05 JP JP62222834A patent/JP2528331B2/ja not_active Expired - Lifetime
-
1988
- 1988-09-01 EP EP88114287A patent/EP0306838A3/en not_active Ceased
- 1988-09-01 BR BR8804491A patent/BR8804491A/pt not_active IP Right Cessation
- 1988-09-05 KR KR1019880011465A patent/KR910008323B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR890005176A (ko) | 1989-05-13 |
JPS6465126A (en) | 1989-03-10 |
JP2528331B2 (ja) | 1996-08-28 |
EP0306838A2 (en) | 1989-03-15 |
EP0306838A3 (en) | 1990-08-16 |
KR910008323B1 (ko) | 1991-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25A | Requested transfer of rights approved |
Free format text: TRANSFERIDO POR FUSAO DE: IDEMITSU PETROCHEMICAL CO., LTD. |
|
B25G | Requested change of headquarter approved |
Free format text: ANOTADA AS ALTERACOES DE SEDE DO TITULAR CONFORME REQUERIDO NA PETICAO NO 020050025938/RJ DE 15/04/2005. |
|
B21A | Expiry acc. art. 78, item i of ipl- expiry of the term of protection |
Free format text: PATENTE EXTINTA EM 01/09/2003 |
|
B15K | Others concerning applications: alteration of classification |
Ipc: C08G 64/24 (2006.01) |