BR9913005A - Policarbonatos de elevada pureza e processo para sua preparação - Google Patents

Policarbonatos de elevada pureza e processo para sua preparação

Info

Publication number
BR9913005A
BR9913005A BR9913005-0A BR9913005A BR9913005A BR 9913005 A BR9913005 A BR 9913005A BR 9913005 A BR9913005 A BR 9913005A BR 9913005 A BR9913005 A BR 9913005A
Authority
BR
Brazil
Prior art keywords
high purity
polycarbonates
preparation
separation
less
Prior art date
Application number
BR9913005-0A
Other languages
English (en)
Inventor
Cristian Kords
Juergen Heuser
Thomas Elsner
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
Priority claimed from DE1998136664 external-priority patent/DE19836664A1/de
Priority claimed from DE1998147051 external-priority patent/DE19847051A1/de
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR9913005A publication Critical patent/BR9913005A/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
    • C08G64/40—Post-polymerisation treatment
    • 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
    • C08G64/40—Post-polymerisation treatment
    • C08G64/406—Purifying; Drying

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)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Patente de Invenção: <B>"POLICARBONATOS DE ELEVADA PUREZA E PROCESSO PARA SUA PREPARAçãO"<D>. Descreve-se um processo para a preparação de policarbonato com um índice de substâncias estranhas de menos que 2,5 . 10^ 4^ Ám²/g ou um sal alcalino de menos que 50 ppb segundo o processo de interfases, em que a solução contendo o policarbonato é lavada com uma solução de lavagem aquosa; o líquido de lavagem é separado e o solvente é removido por evaporação, caracterizado pelo fato de que a mistura dos solventes orgânicos e líquidos de lavagem remanescente obtido após a separação são aquecidos até obter-se uma solução clara e filtrados para a separação dos sólidos. Os policarbonatos de elevada pureza são empregados particularmente para armazenadores de dados ópticos, lentes e prismas.
BR9913005-0A 1998-08-13 1999-07-30 Policarbonatos de elevada pureza e processo para sua preparação BR9913005A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1998136664 DE19836664A1 (de) 1998-08-13 1998-08-13 Hochreine Polycarbonate und Verfahren zu deren Herstellung
DE1998147051 DE19847051A1 (de) 1998-10-13 1998-10-13 Hochreine Polycarbonate und Verfahren zu deren Herstellung
PCT/EP1999/005451 WO2000009582A1 (de) 1998-08-13 1999-07-30 Hochreine polycarbonate und verfahren zu deren herstellung

Publications (1)

Publication Number Publication Date
BR9913005A true BR9913005A (pt) 2001-05-08

Family

ID=26048125

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9913005-0A BR9913005A (pt) 1998-08-13 1999-07-30 Policarbonatos de elevada pureza e processo para sua preparação

Country Status (6)

Country Link
EP (1) EP1105432A1 (pt)
JP (1) JP2002522605A (pt)
KR (1) KR20010079634A (pt)
AU (1) AU5289699A (pt)
BR (1) BR9913005A (pt)
WO (1) WO2000009582A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19952852A1 (de) * 1999-11-03 2001-05-10 Bayer Ag Hochreine Polymergranulate und Verfahren zu deren Herstellung
JP2003026792A (ja) * 2001-07-16 2003-01-29 Teijin Chem Ltd 精製ポリカーボネート樹脂の製造方法
DE102006050381A1 (de) * 2006-10-25 2008-05-08 Bayer Materialscience Ag Verfahren zur Abtrennung einer organischen von einer elektrolythaltigen wässrigen und organischen Phase
DE102007007462A1 (de) * 2007-02-15 2008-08-21 Bayer Materialscience Ag Verwendung von Alumosilikaten zur Entfernung bzw. Reduzierung von fluoreszierenden Partikeln in Polycarbonat
CN102775595B (zh) * 2012-03-12 2014-03-05 甘肃银光聚银化工有限公司 一种聚碳酸酯乳液的连续纯化方法
US11084915B2 (en) 2016-01-04 2021-08-10 Sumitomo Seika Chemicals Co., Ltd. Composition for resin surface roughening

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0653793B2 (ja) * 1986-10-22 1994-07-20 出光石油化学株式会社 ポリカ−ボネ−ト有機溶剤液の洗浄方法
US4845193A (en) * 1987-07-21 1989-07-04 Mitsubishi Gas Chemical Co., Inc. Process for producing polycarbonate resin molding material having low particle content with vented extruder
DE69013700T3 (de) * 1989-01-20 2004-01-22 Idemitsu Petrochemical Co., Ltd. Optische Trägerplatte, optisches Informationsspeichermedium und Verfahren zur Herstellung der optischen Trägerplatte.
JP2662049B2 (ja) * 1989-09-14 1997-10-08 出光石油化学株式会社 光学式ディスク基板及び光学式情報記録媒体
JP2542458B2 (ja) * 1990-09-17 1996-10-09 出光石油化学株式会社 ポリカ―ボネ―トの製造方法
US5200496A (en) * 1991-07-02 1993-04-06 The Dow Chemical Company Process for preparing polycarbonate having reduced carbonate byproduct content
JP3105324B2 (ja) * 1992-01-13 2000-10-30 帝人化成株式会社 ポリカーボネートの有機溶媒溶液の精製方法
JPH083307A (ja) * 1994-06-24 1996-01-09 Mitsui Toatsu Chem Inc 芳香族ポリカーボネートの製造方法
DE19510061A1 (de) * 1995-03-20 1996-09-26 Bayer Antwerpen Nv Verfahren zur Reinigung von Polycarbonat
JPH0987501A (ja) * 1995-09-22 1997-03-31 Asahi Chem Ind Co Ltd 添加剤含有樹脂組成物

Also Published As

Publication number Publication date
JP2002522605A (ja) 2002-07-23
WO2000009582A1 (de) 2000-02-24
KR20010079634A (ko) 2001-08-22
EP1105432A1 (de) 2001-06-13
AU5289699A (en) 2000-03-06

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]