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FR2416914A1 - POLYIMIDE FOAMS - Google Patents

POLYIMIDE FOAMS

Info

Publication number
FR2416914A1
FR2416914A1 FR7903352A FR7903352A FR2416914A1 FR 2416914 A1 FR2416914 A1 FR 2416914A1 FR 7903352 A FR7903352 A FR 7903352A FR 7903352 A FR7903352 A FR 7903352A FR 2416914 A1 FR2416914 A1 FR 2416914A1
Authority
FR
France
Prior art keywords
foams
polyimide foams
polyimide
blistered
rigid
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.)
Granted
Application number
FR7903352A
Other languages
French (fr)
Other versions
FR2416914B1 (en
Inventor
John Gagliani
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.)
Navistar Inc
Original Assignee
International Harverster 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
Priority claimed from US05/935,378 external-priority patent/US4241193A/en
Application filed by International Harverster Corp filed Critical International Harverster Corp
Publication of FR2416914A1 publication Critical patent/FR2416914A1/en
Application granted granted Critical
Publication of FR2416914B1 publication Critical patent/FR2416914B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0085—Use of fibrous compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

L'invention concerne les polyimides, et plus particulièrement de nouvelles mousses polyimides qui sont rigides, boursouflées et à structure résistante. Les mousses polyimides selon l'invention sont issues de mélanges de diamines aromatiques et d'esters partiels d'acide benzophénonetétracarboxylique. Les précurseurs sont convertis en mousses polyimides par chauffage et les mousses sont ensuite comprimées, ce qui donne des matériaux denses, rigides, boursouflés, à structure résistante. Mousses applicables comme barrière anti-feu.The invention relates to polyimides, and more particularly to novel polyimide foams which are rigid, blistered and structurally strong. The polyimide foams according to the invention are obtained from mixtures of aromatic diamines and partial esters of benzophenonetetracarboxylic acid. The precursors are converted to polyimide foams by heating and the foams are then compressed, resulting in dense, rigid, blistered, structurally strong materials. Foams applicable as a fire barrier.

FR7903352A 1978-02-13 1979-02-09 POLYIMIDE FOAMS Granted FR2416914A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87751678A 1978-02-13 1978-02-13
US05/935,378 US4241193A (en) 1978-08-21 1978-08-21 Polyimides

Publications (2)

Publication Number Publication Date
FR2416914A1 true FR2416914A1 (en) 1979-09-07
FR2416914B1 FR2416914B1 (en) 1983-10-28

Family

ID=27128445

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7903352A Granted FR2416914A1 (en) 1978-02-13 1979-02-09 POLYIMIDE FOAMS

Country Status (4)

Country Link
CA (1) CA1131399A (en)
DE (1) DE2903347C2 (en)
FR (1) FR2416914A1 (en)
GB (1) GB2014166B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02127448A (en) * 1988-09-06 1990-05-16 Imi Tech Corp Rehardenable hardened cellular material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726834A (en) * 1972-07-03 1973-04-10 Int Harvester Co Thermoplastic copolyimides
US3793281A (en) * 1972-07-14 1974-02-19 Int Harvester Co Thermoplastic copolyimides
US3966652A (en) * 1974-11-11 1976-06-29 International Harvester Company Method of making foamed copolyimides and product obtained therefrom

Also Published As

Publication number Publication date
FR2416914B1 (en) 1983-10-28
DE2903347A1 (en) 1979-08-23
CA1131399A (en) 1982-09-07
GB2014166A (en) 1979-08-22
DE2903347C2 (en) 1984-11-29
GB2014166B (en) 1983-02-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse