NO170684C - Fremgangsmaate for fremstilling av et diftalsyreeterdianhydrid - Google Patents

Fremgangsmaate for fremstilling av et diftalsyreeterdianhydrid

Info

Publication number
NO170684C
NO170684C NO874081A NO874081A NO170684C NO 170684 C NO170684 C NO 170684C NO 874081 A NO874081 A NO 874081A NO 874081 A NO874081 A NO 874081A NO 170684 C NO170684 C NO 170684C
Authority
NO
Norway
Prior art keywords
ethyrid
diftal
hydrid
procedure
preparation
Prior art date
Application number
NO874081A
Other languages
English (en)
Norwegian (no)
Other versions
NO170684B (no
NO874081D0 (no
NO874081L (no
Inventor
Willis T Schwartz
Joseph A Pawlak
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 NO874081D0 publication Critical patent/NO874081D0/no
Publication of NO874081L publication Critical patent/NO874081L/no
Publication of NO170684B publication Critical patent/NO170684B/no
Publication of NO170684C publication Critical patent/NO170684C/no

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
NO874081A 1986-10-03 1987-09-29 Fremgangsmaate for fremstilling av et diftalsyreeterdianhydrid NO170684C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/914,955 US4697023A (en) 1986-10-03 1986-10-03 Process for the preparation of oxy-diphthalic anhydrides

Publications (4)

Publication Number Publication Date
NO874081D0 NO874081D0 (no) 1987-09-29
NO874081L NO874081L (no) 1988-04-05
NO170684B NO170684B (no) 1992-08-10
NO170684C true NO170684C (no) 1992-11-18

Family

ID=25434997

Family Applications (1)

Application Number Title Priority Date Filing Date
NO874081A NO170684C (no) 1986-10-03 1987-09-29 Fremgangsmaate for fremstilling av et diftalsyreeterdianhydrid

Country Status (8)

Country Link
US (1) US4697023A (de)
EP (1) EP0264624B1 (de)
JP (1) JPS6396183A (de)
AT (1) ATE66455T1 (de)
CA (1) CA1269390A (de)
DE (1) DE3772320D1 (de)
ES (1) ES2029816T3 (de)
NO (1) NO170684C (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868316A (en) * 1987-04-27 1989-09-19 Occidental Chemical Corporation Process for the preparation of diether diphthalic anhydrides
US4837404A (en) * 1987-08-24 1989-06-06 Occidental Chemical Corporation Process for the preparation of oxy-diphthalic anhydrides
US5021168A (en) * 1987-09-28 1991-06-04 Occidental Chemical Corporation Process for the preparation and recovery of oxydiphthalic anhydrides
US4870194A (en) * 1987-09-28 1989-09-26 Occidental Chemical Corporation Process for the preparation and recovery of oxdiphthalic anhydrides
US4808731A (en) * 1988-03-04 1989-02-28 General Electric Company Method for making oxydiphthalic anhydride
US4948904A (en) * 1988-12-14 1990-08-14 Occidental Chemical Corporation Process for the preparation of oxydiphthalic anhydrides
US4946985A (en) * 1988-12-14 1990-08-07 Occidental Chemical Corporation Catalyzed process for the preparation of oxydiphthalic 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
US5185451A (en) * 1989-05-15 1993-02-09 Occidental Chemical Corporation Bis-imides of dioxydiphthalic acid
US5003086A (en) * 1989-05-15 1991-03-26 Occidental Chemical Corporation Process of preparing dioxydiphthalic anhydride
US5166404A (en) * 1989-05-15 1992-11-24 Occidental Chemical Corporation Dioxydiphthalic acid esters
US5077415A (en) * 1990-01-19 1991-12-31 Ciba-Geigy Corporation Disubstituted aromatic dianhydrides
US5153335A (en) * 1990-06-08 1992-10-06 Occidental Chemical Corporation Process for the preparation of oxydiphthalic anhydride and acyloxyphthalic anhydrides
IL119868A0 (en) * 1996-12-19 1997-03-18 Bromine Compounds Ltd Process for the preparation of 4,4'-oxybisphthalic dianhydride
JP3204641B2 (ja) * 1997-12-02 2001-09-04 マナック株式会社 オキシジフタル酸無水物の製造方法
US20060293528A1 (en) * 2005-06-24 2006-12-28 General Electric Company Method of purifying dianhydrides
US7863463B2 (en) 2005-11-22 2011-01-04 Sabic Innovative Plastics Ip B.V. Method of purifying dianhydrides
WO2008082413A1 (en) * 2007-01-04 2008-07-10 Sabic Innovative Plastics Ip B.V. Method of purifying dianhydrides
JP2012136470A (ja) * 2010-12-27 2012-07-19 Manac Inc ３，４’−オキシビスフタルイミド化合物とその製造方法
CN102838572A (zh) * 2012-09-07 2012-12-26 景立秋 一种二苯醚二酐及其异构体的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020069A (en) * 1975-07-25 1977-04-26 General Electric Company Preparation of aromatic tetracarboxylic acids
JPS55122738A (en) * 1979-03-15 1980-09-20 Mitsui Toatsu Chem Inc Preparation of oxy-di-phtalic acid and acid anhydride
JPS61205232A (ja) * 1985-03-08 1986-09-11 Yutaka Kobayashi ３，４−ジカルボキシジフエニルエ−テル及びその製造方法

Also Published As

Publication number Publication date
ATE66455T1 (de) 1991-09-15
JPS6396183A (ja) 1988-04-27
NO170684B (no) 1992-08-10
CA1269390A (en) 1990-05-22
NO874081D0 (no) 1987-09-29
ES2029816T3 (es) 1992-10-01
US4697023A (en) 1987-09-29
EP0264624A1 (de) 1988-04-27
NO874081L (no) 1988-04-05
DE3772320D1 (de) 1991-09-26
EP0264624B1 (de) 1991-08-21

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