GB1346472A - Polyimide precursor composition - Google Patents

Polyimide precursor composition

Info

Publication number
GB1346472A
GB1346472A GB3235971A GB3235971A GB1346472A GB 1346472 A GB1346472 A GB 1346472A GB 3235971 A GB3235971 A GB 3235971A GB 3235971 A GB3235971 A GB 3235971A GB 1346472 A GB1346472 A GB 1346472A
Authority
GB
United Kingdom
Prior art keywords
composition
anhydride
mole
polyimide precursor
precursor composition
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
GB3235971A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1346472A publication Critical patent/GB1346472A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1003—Preparatory processes
    • C08G73/1007—Preparatory processes from tetracarboxylic acids or derivatives and diamines
    • C08G73/1028—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous
    • C08G73/1032—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous characterised by the solvent(s) used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1057—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain
    • C08G73/1064—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain containing sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

1346472 Polyimide coatings EI DU PONT DE NEMOURS & CO 9 July 1971 [10 July 1970] 32359/71 Heading B2E [Also in Division C3] Wire or aromatic polyamide is coated with a polyimide precursor composition which consists essentially of: (1) a polyamic acid which is the reaction product of bis (3, 4-dicarboxyphenyl) sulphone dianhydride and m-phenylenediamine, in mole ratio 1.0/(0.5 to 1.0), and optionally #0.5 mole of methylenedianiline and/or oxydianiline; and (2) 50-95% wt. of the composition of a solvent being γ-butyrolactone and/or sulpholane. Up to 10% wt. of the anhydride may be replaced by pyromellitic or benzophenonetetracarboxylic anhydride. The composition may also comprise # 3.5% mole bis (3, 4-dicarboxyphenyl) sulphone based on the latter and its anhydride, to control the viscosity to 20-40 poise. The composition may be cured, e.g. by heating to 200‹C.
GB3235971A 1970-07-10 1971-07-09 Polyimide precursor composition Expired GB1346472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5401870A 1970-07-10 1970-07-10

Publications (1)

Publication Number Publication Date
GB1346472A true GB1346472A (en) 1974-02-13

Family

ID=21988229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3235971A Expired GB1346472A (en) 1970-07-10 1971-07-09 Polyimide precursor composition

Country Status (3)

Country Link
DE (1) DE2134445A1 (en)
FR (1) FR2098308B1 (en)
GB (1) GB1346472A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU576675B2 (en) * 1985-06-20 1988-09-01 National Aeronautics And Space Administration - Nasa Copolyimides

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1355614A (en) * 1963-01-25 1964-03-20 Du Pont Process for the preparation of new polymeric materials and in particular of polyimides

Also Published As

Publication number Publication date
DE2134445A1 (en) 1972-01-20
FR2098308A1 (en) 1972-03-10
FR2098308B1 (en) 1976-04-02

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Legal Events

Date Code Title Description
PS Patent sealed