IL87379A - Preparation of oxy- diphthalic anhydrides - Google Patents

Preparation of oxy- diphthalic anhydrides

Info

Publication number
IL87379A
IL87379A IL87379A IL8737988A IL87379A IL 87379 A IL87379 A IL 87379A IL 87379 A IL87379 A IL 87379A IL 8737988 A IL8737988 A IL 8737988A IL 87379 A IL87379 A IL 87379A
Authority
IL
Israel
Prior art keywords
oxy
preparation
diphthalic anhydrides
diphthalic
anhydrides
Prior art date
Application number
IL87379A
Other languages
English (en)
Other versions
IL87379A0 (en
Original Assignee
Occidental Chem 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 Occidental Chem Co filed Critical Occidental Chem Co
Publication of IL87379A0 publication Critical patent/IL87379A0/xx
Publication of IL87379A publication Critical patent/IL87379A/xx

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
IL87379A 1987-08-24 1988-08-08 Preparation of oxy- diphthalic anhydrides IL87379A (en)

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 (2)

Publication Number Publication Date
IL87379A0 IL87379A0 (en) 1989-01-31
IL87379A true IL87379A (en) 1992-12-01

Family

ID=22210712

Family Applications (1)

Application Number Title Priority Date Filing Date
IL87379A IL87379A (en) 1987-08-24 1988-08-08 Preparation of oxy- diphthalic anhydrides

Country Status (8)

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

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
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
US5003031A (en) * 1989-05-15 1991-03-26 Occidental Chemical Corporation Polyimides and co-polyimides based on 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
EP0377637A1 (en) 1990-07-18
ES2008003A6 (es) 1989-07-01
US4837404A (en) 1989-06-06
WO1989001935A1 (en) 1989-03-09
BR8807384A (pt) 1990-03-20
JPH03500771A (ja) 1991-02-21
IL87379A0 (en) 1989-01-31
CA1267907A (en) 1990-04-17
EP0377637A4 (en) 1990-09-05

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