ES2100157T3 - Procedimiento para preparar policarbonatos aromaticos. - Google Patents

Procedimiento para preparar policarbonatos aromaticos.

Info

Publication number
ES2100157T3
ES2100157T3 ES90124430T ES90124430T ES2100157T3 ES 2100157 T3 ES2100157 T3 ES 2100157T3 ES 90124430 T ES90124430 T ES 90124430T ES 90124430 T ES90124430 T ES 90124430T ES 2100157 T3 ES2100157 T3 ES 2100157T3
Authority
ES
Spain
Prior art keywords
procedure
aromatic polycarbonates
preparing aromatic
compound
pursuant
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES90124430T
Other languages
English (en)
Inventor
Takeshi Sakashita
Tomoaki Shimoda
Hideyuki Itoi
Takashi Nagai
Kotarou Kishimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SABIC Innovative Plastics Japan KK
Original Assignee
GE Plastics Japan Ltd
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 GE Plastics Japan Ltd filed Critical GE Plastics Japan Ltd
Application granted granted Critical
Publication of ES2100157T3 publication Critical patent/ES2100157T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1515—Three-membered rings
    • 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
    • C08G64/30—General preparatory processes using carbonates
    • C08G64/307—General preparatory processes using carbonates and phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/41—Compounds containing sulfur bound to oxygen
    • C08K5/42—Sulfonic acids; Derivatives thereof

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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

SEGUN ESTA INVENCION, SE PROPORCIONA UNA MEJORA QUE CONSISTE EN AÑADIR UN COMPUESTO ACIDO Y EN CASO NECESARIO UN COMPUESTO EPOXI A UN PRODUCTO DE REACCION RESULTANTE DE LA FUSION DE UNA REACCION DE POLICONDENSACION DE UN COMPUESTO DE DIHIDROXI AROMATICO CON UN DIESTER ACIDO CARBONICO ANTE LA PRESENCIA DE UN CATALIZADOR DE COMPUESTO ALCALINO.
ES90124430T 1989-12-28 1990-12-17 Procedimiento para preparar policarbonatos aromaticos. Expired - Lifetime ES2100157T3 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP34404289 1989-12-28
JP8521890 1990-03-30
JP20707890 1990-08-03
JP20707690 1990-08-03

Publications (1)

Publication Number Publication Date
ES2100157T3 true ES2100157T3 (es) 1997-06-16

Family

ID=27467071

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90124430T Expired - Lifetime ES2100157T3 (es) 1989-12-28 1990-12-17 Procedimiento para preparar policarbonatos aromaticos.

Country Status (9)

Country Link
US (1) US5606007A (es)
EP (1) EP0435124B1 (es)
JP (1) JPH0692529B2 (es)
KR (1) KR940010015B1 (es)
CN (1) CN1035618C (es)
BR (1) BR9006542A (es)
DE (1) DE69030364T2 (es)
ES (1) ES2100157T3 (es)
HK (1) HK1005595A1 (es)

Families Citing this family (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0578466A (ja) * 1991-04-09 1993-03-30 Nippon G Ii Plast Kk 共重合ポリカーボネートの製造方法
US5276109A (en) * 1991-06-28 1994-01-04 General Electric Company Optical polycarbonate compositions
JP2922337B2 (ja) * 1991-06-28 1999-07-19 日本ジーイープラスチックス株式会社 共重合ポリカーボネートの製造方法
JP2924985B2 (ja) * 1991-06-28 1999-07-26 日本ジーイープラスチックス株式会社 ポリカーボネートの製造方法
JPH05117382A (ja) * 1991-10-29 1993-05-14 Nippon G Ii Plast Kk 共重合ポリカーボネート、その製造方法およびそれからなる組成物
JPH05262970A (ja) * 1992-03-17 1993-10-12 Nippon G Ii Plast Kk ポリカーボネート系樹脂組成物
JPH05262969A (ja) * 1992-03-19 1993-10-12 Nippon G Ii Plast Kk 光学用ポリカーボネート系樹脂組成物
DE69333628T2 (de) * 1992-10-14 2005-02-03 Daicel Chemical Industries, Ltd., Sakai Verfahren zur Darstellung von Polycarbonaten durch Polykondensation in der Schmelze
EP0592900A3 (en) * 1992-10-14 1995-02-22 Daicel Chem Process for the preparation of polycarbonates by polycondensation in the melt.
JPH06228300A (ja) * 1992-12-11 1994-08-16 Daicel Chem Ind Ltd ポリカーボネートの製造法
EP0608778A3 (en) * 1993-01-29 1997-01-22 Daicel Chem (co) Polycarbonate and process for its preparation.
JP3289746B2 (ja) * 1993-07-30 2002-06-10 日本ジーイープラスチックス株式会社 ポリカーボネート組成物の製造方法
EP0640646B1 (en) * 1993-08-26 2002-11-06 Teijin Limited Process for production of stabilized polycarnonate
EP0683200B1 (en) * 1994-05-19 2001-09-26 General Electric Company Stabilizer composition
AU2613495A (en) * 1994-05-27 1995-12-21 Ciba-Geigy Ag Polyester/polycarbonate blends having enhanced properties
JPH07331051A (ja) 1994-05-31 1995-12-19 Nippon G Ii Plast Kk 難燃性ポリカーボネート系樹脂組成物
DE4438545A1 (de) * 1994-10-28 1996-05-02 Bayer Ag Verfahren zur Herstellung von thermoplastischem Polycarbonat
DE69519151T2 (de) * 1994-12-28 2001-05-23 General Electric Co., Schenectady Copolycarbonat
JPH08183852A (ja) * 1994-12-28 1996-07-16 Nippon G Ii Plast Kk コポリカーボネート、コポリカーボネート組成物およびこれらの製造方法
JP3390277B2 (ja) * 1994-12-28 2003-03-24 日本ジーイープラスチックス株式会社 ポリカーボネートの製造方法
JP3670335B2 (ja) * 1995-02-21 2005-07-13 日本ジーイープラスチックス株式会社 高粘度流体用瀘過装置
US5972273A (en) * 1995-08-21 1999-10-26 Asahi Kasei Kogyo Kabushiki Kaisha Method for producing a homogeneous polycarbonate composition
EP0774491A3 (en) 1995-11-20 1997-12-03 General Electric Company Films, sheets and molded products made of a polyester/polycarbonate composition
EP0850971A3 (en) * 1996-12-28 1999-02-24 Eastman Chemical Company Process for deactivating polycarbonate catalyst residues
US6180748B1 (en) 1996-12-30 2001-01-30 Eastman Chemical Company Process for deactivating alkali metal catalyst residues in poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate residues
US5990266A (en) * 1997-12-04 1999-11-23 University Of Nebraska Degradable polyesters, a mixed culture of microorganisms for degrading these polyesters, and methods for making these substances
US5973102A (en) * 1997-12-12 1999-10-26 General Electric Company Static resistant polycarbonate compositions
US6821456B2 (en) * 1998-09-22 2004-11-23 Albemarle Corporation Granular polymer additives and their preparation
US6056898A (en) * 1998-09-22 2000-05-02 Albemarle Corporation Low dust balanced hardness antioxidant pellets and process for the production of same
US6649677B2 (en) * 1998-11-03 2003-11-18 General Electric Company Polycarbonate sheet with improved fire retardant performance
US6339138B1 (en) 1998-11-04 2002-01-15 General Electric Company Method of manufacturing polycarbonates
JP4056645B2 (ja) 1998-12-08 2008-03-05 Ｓａｂｉｃイノベーティブプラスチックスジャパン合同会社 光学用ポリカーボネート樹脂組成物
DE69911565T2 (de) * 1998-12-22 2004-06-03 Mitsubishi Chemical Corp. Aromatische Polycarbonatabmischung
US6177536B1 (en) 1999-02-22 2001-01-23 General Electric Company Method for quenching of catalyst in the production of low molecular weight polycarbonates
US6022943A (en) * 1999-04-07 2000-02-08 General Electric Company Optical quality polycarbonates with reduced static charge and method for making same
US6136945A (en) * 1999-05-17 2000-10-24 General Electric Company Method for quenching of polycarbonate and compositions prepared thereby
JP3729681B2 (ja) 1999-06-11 2005-12-21 日本ジーイープラスチックス株式会社 ポリカーボネートの製造方法
US6265527B1 (en) 1999-11-01 2001-07-24 General Electric Company Method for making polyester carbonates
US6232429B1 (en) 1999-11-01 2001-05-15 General Electric Company Method for making polyester carbonates
JP4322376B2 (ja) 1999-11-26 2009-08-26 Ｓａｂｉｃイノベーティブプラスチックスジャパン合同会社 難燃性樹脂組成物およびその成型品
US6346597B1 (en) 1999-12-27 2002-02-12 General Electric Company Method for making polyester carbonates
ES2177384A1 (es) 2000-02-18 2002-12-01 Ge Plastics De Espana S Com P Procedimiento de preparacion de policarbonatos
WO2001070882A1 (en) 2000-03-22 2001-09-27 Teijin Limited Aromatic polycarbonate composition
US6596198B1 (en) 2000-04-28 2003-07-22 Albemarle Corporation Additive system for polymers in pellet form which provides proportioned stabilization and internal mold release characteristics
US6353046B1 (en) 2000-04-28 2002-03-05 General Electric Company Fire-retarded polycarbonate resin composition
DE60031094T2 (de) * 2000-05-17 2007-05-10 General Electric Co. Polycarbonatabmischung für optische Verwendung
JP4951192B2 (ja) 2000-09-12 2012-06-13 帝人株式会社 芳香族ポリカーボネートおよびその製造方法
US6515052B2 (en) 2001-02-23 2003-02-04 Albemarle Corporation Granular polymer additives and their preparation
JP2002348368A (ja) 2001-05-28 2002-12-04 Ge Plastics Japan Ltd 光学用ポリカーボネートおよびその用途
JP3866934B2 (ja) * 2001-05-28 2007-01-10 日本ジーイープラスチックス株式会社 光学用ポリカーボネートおよびその用途
US6504000B1 (en) 2001-08-30 2003-01-07 General Electric Company Process for preparing polycarbonate
US6555646B2 (en) 2001-08-30 2003-04-29 General Electric Company Process for preparing polycarbonate
US6495654B1 (en) 2001-08-30 2002-12-17 General Elecrric Company Process for preparing polycarbonate
JP2003231815A (ja) 2002-02-08 2003-08-19 Ge Plastics Japan Ltd 熱可塑性樹脂組成物および汚れ模様の改善方法
EP2143750B1 (en) * 2002-04-22 2012-06-27 Mitsubishi Chemical Corporation Aromatic polycarbonate composition, process for producing the same, and hollow container therefrom
CN101585914B (zh) * 2002-04-22 2011-12-14 三菱化学株式会社 芳香族聚碳酸酯、其制造方法、聚碳酸酯组合物及由该组合物得到的中空容器
US7019059B2 (en) * 2002-12-16 2006-03-28 General Electric Company Method for making fire-retarded glass-filled polycarbonate and related compositions
US7482397B2 (en) * 2003-01-13 2009-01-27 Eastman Chemical Company Polycarbonate compositions
US20040143041A1 (en) * 2003-01-13 2004-07-22 Pearson Jason Clay Polyester compositions
US7297735B2 (en) 2003-03-05 2007-11-20 Eastman Chemical Company Polycarbonate compositions
US20040192813A1 (en) * 2003-03-20 2004-09-30 Pearson Jason Clay Polymer compositions containing an ultraviolet light absorbing compound
US20050277713A1 (en) * 2003-03-05 2005-12-15 Pearson Jason C Polymer blends
US7338992B2 (en) * 2003-03-05 2008-03-04 Eastman Chemical Company Polyolefin compositions
KR101158123B1 (ko) * 2003-03-05 2012-06-19 이스트만 케미칼 컴파니 자외선 흡수 화합물을 함유하는 중합체 조성물
ATE390460T1 (de) * 2003-03-05 2008-04-15 Eastman Chem Co Polymerblends
US20040183053A1 (en) * 2003-03-20 2004-09-23 Pearson Jason Clay Process for the preparation of a hindered amine light stabilizer salt
US20040180994A1 (en) * 2003-03-05 2004-09-16 Pearson Jason Clay Polyolefin compositions
US20050009968A1 (en) * 2003-06-28 2005-01-13 General Electric Company Transparent Flame Retardant Polycarbonate Compositions
JP2007524731A (ja) * 2003-07-10 2007-08-30 ゼネラル・エレクトリック・カンパニイ 難燃性ポリカーボネート樹脂組成物
DE102004004797A1 (de) * 2004-01-30 2005-09-01 Zimmer Ag Verfahren zur Herstellung von Diaryl- und Polycarbonaten
ATE460458T1 (de) * 2004-06-24 2010-03-15 Bayer Materialscience Ag Thermostabilisierte polycarbonat- zusammensetzungen
DE502005009267D1 (de) * 2004-07-01 2010-05-06 Bayer Materialscience Ag Inhibierung von katalytisch aktiven Verunreinigungen in Polycarbonat nach dem Schmelzeumesterungsverfahren
US7947770B2 (en) * 2007-03-07 2011-05-24 E. I. Du Pont De Nemours And Company Flame retardant polycarbonate compositions
DE102007022130B4 (de) 2007-05-11 2015-02-19 Bayer Intellectual Property Gmbh Verfahren zur Herstellung von Polycarbonat nach dem Schmelzeumesterungsverfahren
DE102007052968A1 (de) 2007-11-07 2009-05-14 Bayer Materialscience Ag Verfahren zur Herstellung von Polycarbonat nach dem Schmelzeumesterungsverfahren
WO2010023155A2 (en) 2008-08-27 2010-03-04 Basf Se Flame retardant compositions with polymeric dispersing agents
US20110294920A1 (en) 2008-12-29 2011-12-01 Basf Se Dopo-flame retardant in epoxy resins
JP5631414B2 (ja) 2010-01-15 2014-11-26 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ ホスホ置換アルコキシアミン化合物
EP2550321A1 (en) 2010-03-25 2013-01-30 Basf Se Flame retardant compositions of phosphinic acid salts and nitroxyl derivatives
EP2374829A1 (de) 2010-04-07 2011-10-12 Bayer MaterialScience AG Verzweigtes Schmelzepolycarbonat mit geringem Anteil an Fehlstrukturen
CN102884042A (zh) 2010-05-07 2013-01-16 巴斯夫欧洲公司 氨基胍苯基次膦酸盐阻燃组合物
CA2804228A1 (en) 2010-07-28 2012-02-02 Basf Se Phosphinic acid hydrazide flame retardant compositions
WO2012013565A1 (en) 2010-07-29 2012-02-02 Basf Se Phosphinic acid hydrazide flame retardant compositions
EP2646505A1 (en) 2010-12-02 2013-10-09 Basf Se Anti-corrosive phosphinate flame retardant compositions
US9290618B2 (en) 2011-08-05 2016-03-22 Sabic Global Technologies B.V. Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions
KR20140097335A (ko) 2011-11-11 2014-08-06 바스프 에스이 난연제로서의 ｐ-ｎ-화합물
EP2780412A1 (en) 2011-11-15 2014-09-24 Basf Se P-piperazine compounds as flame retardants
CN104145001A (zh) * 2012-02-29 2014-11-12 沙特基础创新塑料Ip私人有限责任公司 含转换材料化学物质并具有增强的光学特性的聚碳酸酯组合物、其制造方法及包含其的制品
EP2819981B1 (en) 2012-02-29 2016-12-21 SABIC Global Technologies B.V. Process for producing low sulfur bisphenol a, processes for producing polycarbonate, articles made from polycarbonate
AU2013233958A1 (en) 2012-03-16 2014-10-02 Basf Se NOR-HALS compounds as flame retardants
WO2013174791A1 (en) 2012-05-22 2013-11-28 Basf Se Phosphinyliminophosphoranes as flame retardants
DE102012105296A1 (de) 2012-06-19 2013-12-19 Epc Engineering Consulting Gmbh Verfahren und Anlage zur Herstellung von Polycarbonat
US9821523B2 (en) 2012-10-25 2017-11-21 Sabic Global Technologies B.V. Light emitting diode devices, method of manufacture, uses thereof
EP2730618B1 (en) 2012-11-07 2016-10-12 SABIC Global Technologies B.V. Process for producing polycarbonate compositions
KR101346516B1 (ko) * 2013-01-18 2013-12-31 아주대학교산학협력단 염기 촉매를 이용하여 제조된 고분자량의 지방족 폴리카보네이트
KR101739756B1 (ko) * 2013-05-29 2017-06-08 사빅 글로벌 테크놀러지스 비.브이. 색 안정성 열가소성 조성물
WO2014191943A1 (en) 2013-05-29 2014-12-04 Sabic Innovative Plastics Ip B.V. Illuminating devices with color stable thermoplastic light-transmitting articles
KR102243300B1 (ko) 2014-03-27 2021-04-23 바스프 에스이 난연제로서의 헵타포스포러스-유도된 화합물
CN106103545A (zh) 2014-03-27 2016-11-09 沙特基础工业全球技术有限公司 熔融聚合聚碳酸酯淬灭
ES2769083T3 (es) 2015-12-22 2020-06-24 Shell Int Research Método para preparar un policarbonato fundido
CN108463481B (zh) * 2015-12-22 2021-04-09 国际壳牌研究有限公司 制备聚碳酸酯的方法
DE102016119477A1 (de) 2016-10-12 2018-04-12 Epc Engineering Consulting Gmbh Katalysator-System
CN106947072A (zh) * 2017-04-20 2017-07-14 宁波浙铁大风化工有限公司 一种聚碳酸酯的制备工艺
EP3581605A1 (de) 2018-06-14 2019-12-18 Covestro Deutschland AG Schmelzeumesterungsverfahren zur gleichzeitigen herstellung mindestens zweier verschiedenartiger polycarbonate in einer produktionsanlage
CN111848933B (zh) * 2020-06-28 2022-08-23 吴君宇 一种可降解共聚酯的制备方法
US20230348713A1 (en) * 2020-07-24 2023-11-02 Shpp Global Technologies B.V. Thermoplastic Compositions Including Recycled Polycarbonate with Improved Hydro-Aging Performance
US20240010812A1 (en) 2020-11-19 2024-01-11 Basf Se Flame-retardant pulverulent composition and 3d-printed object obtained from the same
KR20230125308A (ko) 2020-12-29 2023-08-29 바스프 에스이 3차원 프린팅용 열가소성 분말 조성물

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022272A (en) * 1962-02-20 Process for the production of high
GB808488A (en) * 1955-12-21 1959-02-04 Bayer Ag Process for the production of high molecular weight polycarbonates
US3404122A (en) 1963-03-09 1968-10-01 Bayer Ag Stabilization of high molecular weight polycarbonates
DE1239471B (de) 1963-03-09 1967-04-27 Bayer Ag Stabilisieren hochmolekularer linearer thermoplastischer Polycarbonate gegen Abbau durch Feuchtigkeit
DE1194142B (de) * 1963-11-19 1965-06-03 Bayer Ag Verfahren zum UV-Stabilisieren von Polycarbonaten
US3833537A (en) * 1972-06-22 1974-09-03 Gen Electric Oxidatively stable polycarbonate composition
DE2331350A1 (de) * 1972-06-22 1974-01-03 Gen Electric Oxydationsstabile polycarbonat-zusammensetzung
JPS5364262A (en) * 1976-11-19 1978-06-08 Mitsubishi Gas Chem Co Inc Stabilization of polycarbonate resin
JPS5444303A (en) * 1977-09-13 1979-04-07 Obayashi Gumi Kk Method of detecting place where water leak in wall for preventing collapse of height
ES2107999T3 (es) * 1988-07-11 1997-12-16 Gen Electric Procedimiento para preparar policarbonatos.

Also Published As

Publication number Publication date
DE69030364D1 (de) 1997-05-07
EP0435124A3 (en) 1991-10-23
BR9006542A (pt) 1991-10-01
US5606007A (en) 1997-02-25
CN1053246A (zh) 1991-07-24
EP0435124A2 (en) 1991-07-03
DE69030364T2 (de) 1997-10-09
KR940010015B1 (ko) 1994-10-20
EP0435124B1 (en) 1997-04-02
JPH04175368A (ja) 1992-06-23
JPH0692529B2 (ja) 1994-11-16
KR910011959A (ko) 1991-08-07
CN1035618C (zh) 1997-08-13
HK1005595A1 (en) 1999-01-15

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