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BR8804491A - Processo de preparacao de policarbonato - Google Patents

Processo de preparacao de policarbonato

Info

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
Application number
BR8804491A
Other languages
English (en)
Inventor
Tatsuji Shizawa
Yoshiharu Inoue
Takahisa Santa
Original Assignee
Idemitsu Petrochemical Co
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 Idemitsu Petrochemical Co filed Critical Idemitsu Petrochemical Co
Publication of BR8804491A publication Critical patent/BR8804491A/pt

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)
BR8804491A 1987-09-05 1988-09-01 Processo de preparacao de policarbonato BR8804491A (pt)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118232A1 (de) * 1991-06-04 1992-12-10 Bayer Ag Kontinuierliche herstellung von polycarbonaten
DE4121213A1 (de) * 1991-06-27 1993-01-14 Bayer Ag Kontinuierliche herstellung von polycarbonaten
DE4121212A1 (de) * 1991-06-27 1993-01-14 Bayer Ag Verfahren zur herstellung von polycarbonat
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
DE4241619C2 (de) * 1992-12-10 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
KR19980021841A (ko) * 1996-09-19 1998-06-25 구자홍 가스연소기구의 점화장치
KR100540435B1 (ko) * 1997-06-17 2006-03-22 주식회사 엘지이아이 가스연소기기의 점화장치
WO2001083583A1 (en) * 2000-05-01 2001-11-08 General Electric Company Interfacial method and apparatus for manufacture of polycarbonate
US6780961B2 (en) * 2002-10-16 2004-08-24 General Electric Company Method of making polycarbonate
SG174169A1 (en) 2009-03-24 2011-11-28 Styron Europe Gmbh 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999596A (pt) * 1973-01-25 1974-09-20

Also Published As

Publication number Publication date
KR910008323B1 (ko) 1991-10-12
EP0306838A3 (en) 1990-08-16
JPS6465126A (en) 1989-03-10
JP2528331B2 (ja) 1996-08-28
KR890005176A (ko) 1989-05-13
EP0306838A2 (en) 1989-03-15

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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)