GB1391502A - Heavy gauge resinous films - Google Patents

Heavy gauge resinous films

Info

Publication number
GB1391502A
GB1391502A GB2731772A GB2731772A GB1391502A GB 1391502 A GB1391502 A GB 1391502A GB 2731772 A GB2731772 A GB 2731772A GB 2731772 A GB2731772 A GB 2731772A GB 1391502 A GB1391502 A GB 1391502A
Authority
GB
United Kingdom
Prior art keywords
film
june
polyamide
imide
polyamic acid
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
GB2731772A
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1391502A publication Critical patent/GB1391502A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions 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 C08L61/00 - C08L77/00
    • C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • 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
    • 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
    • C08G73/14—Polyamide-imides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D179/00—Coating compositions based on 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 C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

1391502 Polyamide-imide and polyimide films WESTINGHOUSE ELECTRIC CORP 12 June 1972 [30 June 1971] 27317/72 Heading B5B A film is cast from a solution of a polyamic acid and the solution heated at between 80‹ and 110‹ C. to partially remove the solvent. The film is then heated at at least 150‹ C. to semi-cure it, stripped off from the substrate and then cured between 150‹ and 350‹ C. whilst simultaneously stretching the film to up to 150% of its original length. This gives a polyamide-imide film or a polyimide film. The polyamic acid precursor has one of the following structures wherein R is one of a number of tetravalent aromatic radicals, R 1 one of a number of divalent aromatic radicals and R 4 hydrogen, alkyl or aryl.
GB2731772A 1971-06-30 1972-06-12 Heavy gauge resinous films Expired GB1391502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15852271A 1971-06-30 1971-06-30

Publications (1)

Publication Number Publication Date
GB1391502A true GB1391502A (en) 1975-04-23

Family

ID=22568521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2731772A Expired GB1391502A (en) 1971-06-30 1972-06-12 Heavy gauge resinous films

Country Status (7)

Country Link
BE (1) BE785569A (en)
CA (1) CA979753A (en)
CH (1) CH579115A5 (en)
DE (1) DE2231164A1 (en)
FR (1) FR2143865B1 (en)
GB (1) GB1391502A (en)
IT (1) IT960198B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03149227A (en) * 1989-11-06 1991-06-25 Sumitomo Bakelite Co Ltd Resin composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57209607A (en) * 1981-06-22 1982-12-23 Ube Ind Ltd Preparation of polyimide separation film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03149227A (en) * 1989-11-06 1991-06-25 Sumitomo Bakelite Co Ltd Resin composition

Also Published As

Publication number Publication date
CA979753A (en) 1975-12-16
CH579115A5 (en) 1976-08-31
FR2143865B1 (en) 1978-09-29
IT960198B (en) 1973-11-20
DE2231164A1 (en) 1973-01-11
FR2143865A1 (en) 1973-02-09
BE785569A (en) 1972-12-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee