ES2008003A6 - Procedimiento para la preparacion de anhidridos oxi-diftalicos. - Google Patents

Procedimiento para la preparacion de anhidridos oxi-diftalicos.

Info

Publication number
ES2008003A6
ES2008003A6 ES8802609A ES8802609A ES2008003A6 ES 2008003 A6 ES2008003 A6 ES 2008003A6 ES 8802609 A ES8802609 A ES 8802609A ES 8802609 A ES8802609 A ES 8802609A ES 2008003 A6 ES2008003 A6 ES 2008003A6
Authority
ES
Spain
Prior art keywords
oxy
preparation
diphthalic anhydrides
diphthalic
anhydrides
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
Application number
ES8802609A
Other languages
English (en)
Inventor
Willis T Schwartz
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.)
Occidental Chemical Corp
Original Assignee
Occidental Chemical Corp
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 Occidental Chemical Corp filed Critical Occidental Chemical Corp
Publication of ES2008003A6 publication Critical patent/ES2008003A6/es
Expired 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
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/567—Preparation of carboxylic acid anhydrides by reactions not involving carboxylic acid anhydride groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Furan Compounds (AREA)
  • Indole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE ANHIDRIDOS OXI-DIFTALICOS. COMPRENDE: HACER REACCIONAR UN ANHIDRO HALO-FTALICO DE FORMULA (I) CON UN ANHIDRO HIDROXIFTALICO DE FORMULA (II), EN PRESENCIA DE UN DISOLVENTE APROTICO Y POLAR Y EN PRESENCIA DE UN COMPUESTO DE METAL ALCALINO SELECCIONADO DEL GRUPO FORMADO POR KF, CSF Y K2CO3 PARA DAR ANHIDRIDOS OXI-DIFTALICOS DE FORMULA (III). LOS ANHIDRIDOS OXI-DIFTALICOS SON PARTICULARMENTE UTILES COMO MONOMEROS EN LA PREPARACION DE POLIIMIDAS.
ES8802609A 1987-08-24 1988-08-23 Procedimiento para la preparacion de anhidridos oxi-diftalicos. Expired ES2008003A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/088,325 US4837404A (en) 1987-08-24 1987-08-24 Process for the preparation of oxy-diphthalic anhydrides

Publications (1)

Publication Number Publication Date
ES2008003A6 true ES2008003A6 (es) 1989-07-01

Family

ID=22210712

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8802609A Expired ES2008003A6 (es) 1987-08-24 1988-08-23 Procedimiento para la preparacion de anhidridos oxi-diftalicos.

Country Status (8)

Country Link
US (1) US4837404A (es)
EP (1) EP0377637A4 (es)
JP (1) JPH03500771A (es)
BR (1) BR8807384A (es)
CA (1) CA1267907A (es)
ES (1) ES2008003A6 (es)
IL (1) IL87379A (es)
WO (1) WO1989001935A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827000A (en) * 1987-09-21 1989-05-02 Occidental Chemical Corporation Process for the preparation of phenoxy phthalic anhydrides
US5003031A (en) * 1989-05-15 1991-03-26 Occidental Chemical Corporation Polyimides and co-polyimides based on dioxydiphthalic anhydride
US4943642A (en) * 1989-05-15 1990-07-24 Occidental Chemical Corporation Halo-oxydiphthalic anhydrides
US5003086A (en) * 1989-05-15 1991-03-26 Occidental Chemical Corporation Process of preparing dioxydiphthalic anhydride
US5077415A (en) * 1990-01-19 1991-12-31 Ciba-Geigy Corporation Disubstituted aromatic dianhydrides
JP3056539B2 (ja) * 1990-06-08 2000-06-26 オクシデンタル ケミカル コーポレイション オキシジ無水フタル酸及びアシルオキシ無水フタル酸の調製方法
JP2775699B2 (ja) 1994-09-20 1998-07-16 ウシオ電機株式会社 誘電体バリア放電ランプ
JP3025414B2 (ja) 1994-09-20 2000-03-27 ウシオ電機株式会社 誘電体バリア放電ランプ装置
US6706897B1 (en) 2003-02-24 2004-03-16 General Electric Company Method for preparing oxydiphthalic anhydrides using guanidinium salt as catalyst
US6727370B1 (en) 2003-02-24 2004-04-27 General Electric Company Method for preparing oxydiphthalic anhydrides using bicarbonate as catalyst
US20060293528A1 (en) * 2005-06-24 2006-12-28 General Electric Company Method of purifying dianhydrides
CN102030732A (zh) * 2010-10-29 2011-04-27 仪征市海帆化工有限公司 4,4’-氧代双邻苯二甲酸酐的合成方法
CN111187240B (zh) * 2020-02-26 2021-12-07 河北海力香料股份有限公司 一种4,4-联苯醚二酐的制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850965A (en) * 1973-03-30 1974-11-26 Gen Electric Method for making aromatic ether anhydrides and products made thereby
US3992407A (en) * 1976-04-14 1976-11-16 General Electric Company Preparation of aromatic bisimides
US4697023A (en) * 1986-10-03 1987-09-29 Occidental Chemical Corporation Process for the preparation of oxy-diphthalic anhydrides
US4868316A (en) * 1987-04-27 1989-09-19 Occidental Chemical Corporation Process for the preparation of diether diphthalic anhydrides

Also Published As

Publication number Publication date
WO1989001935A1 (en) 1989-03-09
US4837404A (en) 1989-06-06
BR8807384A (pt) 1990-03-20
IL87379A (en) 1992-12-01
IL87379A0 (en) 1989-01-31
EP0377637A1 (en) 1990-07-18
EP0377637A4 (en) 1990-09-05
CA1267907A (en) 1990-04-17
JPH03500771A (ja) 1991-02-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19940824