IT1150785B - Metodo per fare bis(eteri anidridi) aromatiche - Google Patents

Metodo per fare bis(eteri anidridi) aromatiche

Info

Publication number
IT1150785B
IT1150785B IT20615/82A IT2061582A IT1150785B IT 1150785 B IT1150785 B IT 1150785B IT 20615/82 A IT20615/82 A IT 20615/82A IT 2061582 A IT2061582 A IT 2061582A IT 1150785 B IT1150785 B IT 1150785B
Authority
IT
Italy
Prior art keywords
ethers
anhydride
aromatic bis
making aromatic
making
Prior art date
Application number
IT20615/82A
Other languages
English (en)
Other versions
IT8220615A0 (it
Inventor
Jimmy Lynn Webb
Bharat Mahendra Mehta
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT8220615A0 publication Critical patent/IT8220615A0/it
Application granted granted Critical
Publication of IT1150785B publication Critical patent/IT1150785B/it

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
    • 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
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Indole Compounds (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Furan Compounds (AREA)
IT20615/82A 1981-04-13 1982-04-06 Metodo per fare bis(eteri anidridi) aromatiche IT1150785B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/253,446 US4340545A (en) 1981-04-13 1981-04-13 Method for making aromatic bis(ether anhydrides)

Publications (2)

Publication Number Publication Date
IT8220615A0 IT8220615A0 (it) 1982-04-06
IT1150785B true IT1150785B (it) 1986-12-17

Family

ID=22960299

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20615/82A IT1150785B (it) 1981-04-13 1982-04-06 Metodo per fare bis(eteri anidridi) aromatiche

Country Status (9)

Country Link
US (1) US4340545A (it)
JP (1) JPS57181074A (it)
AU (1) AU8234982A (it)
CA (1) CA1173847A (it)
DE (1) DE3212132A1 (it)
FR (1) FR2503707B1 (it)
GB (1) GB2096602A (it)
IT (1) IT1150785B (it)
NL (1) NL189000C (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340545A (en) * 1981-04-13 1982-07-20 General Electric Company Method for making aromatic bis(ether anhydrides)
US4543416A (en) * 1983-02-01 1985-09-24 General Electric Company Di(phthalic anhydride) derivatives of di(disubstituted phenol) sulfones
US4571425A (en) * 1985-02-14 1986-02-18 General Electric Company Method for making aromatic bis(ether anhydride)
JP2545510Y2 (ja) * 1992-02-14 1997-08-25 古河電気工業株式会社 標識の周縁部構造
US6528663B1 (en) 2001-12-05 2003-03-04 General Electric Company Methods for the preparation of 4-chlorophthalic anhydride
US6498224B1 (en) 2001-12-05 2002-12-24 General Electric Company Methods for the preparation poly(etherimide)s
US6576770B1 (en) 2001-12-05 2003-06-10 General Electric Company Preparation of substituted phthalic anhydrides and substituted phthalimides
US6710187B2 (en) * 2002-05-14 2004-03-23 General Electric Company Process to isolate dianhydrides
US6881815B2 (en) * 2002-09-25 2005-04-19 General Electric Company Method for the preparation poly(etherimide)s
US20060029671A1 (en) * 2004-08-06 2006-02-09 Grain Processing Corporation Tablet coating composition
US8080671B2 (en) 2008-05-23 2011-12-20 Sabic Innovative Plastics Ip B.V. Production of low color polyetherimides
WO2017132656A1 (en) 2016-01-29 2017-08-03 Sabic Global Technologies B.V. Thermoplastic polyimides, method for the manufacture thereof, and articles prepared therefrom
WO2017189293A1 (en) * 2016-04-27 2017-11-02 Sabic Global Technologies B.V. Method for isolation of a dianhydride and dianhydrides prepared by the method
CN106279085B (zh) * 2016-08-17 2018-07-10 万华化学集团股份有限公司 一种混合异构双醚四甲酸二酐的制备方法
WO2019217257A1 (en) 2018-05-07 2019-11-14 Sabic Global Technologies B.V. Method for isolation of an aromatic dianhydride and aromatic dianhydrides prepared by the method
WO2019222077A1 (en) * 2018-05-14 2019-11-21 Sabic Global Technologies B.V. Method for isolation of a dianhydride and dianhydrides prepared by the method
EP3802506B1 (en) 2018-06-04 2022-06-08 SHPP Global Technologies B.V. Method for producing an aromatic dianhydride
WO2019245898A1 (en) * 2018-06-18 2019-12-26 Sabic Global Technologies B.V. Method for isolation of an aromatic dianhydride and aromatic dianhydrides prepared by the method
WO2021113491A1 (en) 2019-12-03 2021-06-10 Shpp Global Technologies B.V. Polyimide varnish from high purity bisphenol a dianhydride and articles prepared therefrom
WO2021113489A1 (en) 2019-12-03 2021-06-10 Shpp Global Technologies B.V. Polyamic acid varnish from high purity bisphenol a dianhydride and articles prepared therefrom

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310573A (en) * 1963-06-17 1967-03-21 Du Pont Diaryl fluoro compounds
US3957862A (en) * 1973-03-30 1976-05-18 General Electric Company Method of making aromatic bis(ether ortho phthalic acid)s
US3879428A (en) * 1973-03-30 1975-04-22 Gen Electric Method for making aromatic bis(ether anhydride)s
US4116980A (en) * 1976-10-04 1978-09-26 General Electric Company Method for making aromatic bis (ether phthalic acid) or aromatic bis (ether anhydride)s
US4128574A (en) * 1976-10-04 1978-12-05 General Electric Company Method for making organic polycarboxylic acids
US4318857A (en) * 1981-04-03 1982-03-09 General Electric Company Method for making aromatic bis (ether anhydrides)
US4329291A (en) * 1981-04-03 1982-05-11 General Electric Company Method for making aromatic bis(ether anhydride)s
US4340545A (en) * 1981-04-13 1982-07-20 General Electric Company Method for making aromatic bis(ether anhydrides)
DE3212166A1 (de) * 1982-04-01 1983-10-06 Walter Frenkel Digitaluhr-steuerung mit lichtleitkabel, auch fuer kurzzeitmesser

Also Published As

Publication number Publication date
GB2096602A (en) 1982-10-20
FR2503707B1 (fr) 1985-08-09
JPH0428709B2 (it) 1992-05-15
NL189000C (nl) 1992-12-01
FR2503707A1 (fr) 1982-10-15
AU8234982A (en) 1982-10-21
US4340545A (en) 1982-07-20
IT8220615A0 (it) 1982-04-06
JPS57181074A (en) 1982-11-08
CA1173847A (en) 1984-09-04
NL8201489A (nl) 1982-11-01
DE3212132A1 (de) 1982-12-09

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950426