DE60139832D1 - Verfahren zur Herstellung einer hochreinen aromatischen Polycarbonsäure - Google Patents

Verfahren zur Herstellung einer hochreinen aromatischen Polycarbonsäure

Info

Publication number
DE60139832D1
DE60139832D1 DE60139832T DE60139832T DE60139832D1 DE 60139832 D1 DE60139832 D1 DE 60139832D1 DE 60139832 T DE60139832 T DE 60139832T DE 60139832 T DE60139832 T DE 60139832T DE 60139832 D1 DE60139832 D1 DE 60139832D1
Authority
DE
Germany
Prior art keywords
preparation
high purity
polycarboxylic acid
aromatic polycarboxylic
purity aromatic
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
DE60139832T
Other languages
English (en)
Inventor
Ryusuke Shigematsu
Masayoshi Hayashi
Shinichi Nagao
Jitsuo Oishi
Akio Hashimoto
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 JP2000154793A external-priority patent/JP5030321B2/ja
Priority claimed from JP2000397491A external-priority patent/JP4654515B2/ja
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Application granted granted Critical
Publication of DE60139832D1 publication Critical patent/DE60139832D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE60139832T 2000-05-25 2001-05-15 Verfahren zur Herstellung einer hochreinen aromatischen Polycarbonsäure Expired - Lifetime DE60139832D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000154793A JP5030321B2 (ja) 2000-05-25 2000-05-25 高純度芳香族ポリカルボン酸の製造法
JP2000397491A JP4654515B2 (ja) 2000-12-27 2000-12-27 芳香族ポリカルボン酸の製造方法

Publications (1)

Publication Number Publication Date
DE60139832D1 true DE60139832D1 (de) 2009-10-22

Family

ID=26592597

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60139832T Expired - Lifetime DE60139832D1 (de) 2000-05-25 2001-05-15 Verfahren zur Herstellung einer hochreinen aromatischen Polycarbonsäure

Country Status (3)

Country Link
US (2) US6455731B2 (de)
EP (2) EP1157981B1 (de)
DE (1) DE60139832D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7627343B2 (en) * 2003-04-25 2009-12-01 Apple Inc. Media player system
US7164038B1 (en) 2006-02-14 2007-01-16 Eastman Chemical Company Process for decolorizing aromatic dicarboxylic acids

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896688A (en) * 1972-07-13 1975-07-29 Bausch & Lomb Method of edging a non-rigid lens
US4407766A (en) * 1981-05-26 1983-10-04 National Patent Development Corporation Molds and procedure for producing truncated contact lenses
US5565609A (en) * 1993-02-12 1996-10-15 Mitsui Petrochemical Industries, Ltd. Method of purifying aromatic dicarboxylic acids
AUPN354595A0 (en) * 1995-06-14 1995-07-06 Ciba-Geigy Ag Novel materials
TW446698B (en) 1996-02-05 2001-07-21 Mitsubishi Gas Chemical Co Process for the production of high-purity naphthalenedicarboxylic acid
US6113817A (en) * 1997-03-25 2000-09-05 Novartis Ag Molding processes
US6194609B1 (en) * 1997-06-30 2001-02-27 Bp Amoco Corporation Crystallization in a plate heat exchanger
JP3798147B2 (ja) * 1998-06-03 2006-07-19 株式会社メニコン 眼用レンズの成形型
DE60002782T2 (de) * 1999-05-26 2004-03-25 Mitsubishi Gas Chemical Co., Inc. Verfahren zur Herstellung einer hochreinen aromatischen Polycarbonsäure

Also Published As

Publication number Publication date
EP2194037A1 (de) 2010-06-09
EP1157981B1 (de) 2009-09-09
US6455731B2 (en) 2002-09-24
US20030055284A1 (en) 2003-03-20
US6642412B2 (en) 2003-11-04
US20020002305A1 (en) 2002-01-03
EP1157981A3 (de) 2003-10-15
EP1157981A2 (de) 2001-11-28
EP2194037B1 (de) 2011-08-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition