GB1162203A - Production of Polyamic Acids and Polyimides - Google Patents

Production of Polyamic Acids and Polyimides

Info

Publication number
GB1162203A
GB1162203A GB1529266A GB1529266A GB1162203A GB 1162203 A GB1162203 A GB 1162203A GB 1529266 A GB1529266 A GB 1529266A GB 1529266 A GB1529266 A GB 1529266A GB 1162203 A GB1162203 A GB 1162203A
Authority
GB
United Kingdom
Prior art keywords
examples
diamine
polyamide
dianhydride
polyimides
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
GB1529266A
Inventor
Mervyn Francis Vaughan
John Idris Jones
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1529266A priority Critical patent/GB1162203A/en
Priority to FR1550077D priority patent/FR1550077A/fr
Priority to NL6704840A priority patent/NL6704840A/xx
Priority to DE19671745180 priority patent/DE1745180A1/en
Priority to BE696713D priority patent/BE696713A/xx
Priority to CH488767A priority patent/CH482757A/en
Priority to CH1542767A priority patent/CH503769A/en
Publication of GB1162203A publication Critical patent/GB1162203A/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
    • C08G73/1089—Polyisoimides
    • 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

Landscapes

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

Abstract

1,162,203. Polyamide acids; polyimides. NATIONAL RESEARCH DEVELOPMENT CORP. 3 March, 1967 [6 April, 1966], No. 15292/66. Heading C3R. Polyamide acids are prepared by condensing a dianhydride of an aromatic tetracarboxylic acid and an aromatic diamine in a liquid organic medium in which the reactants are sufficiently soluble to undergo polymerization in the liquid phase, but in which the polyamide acid is sufficiently insoluble to precipitate from the reaction medium. The initial reaction medium may be a homogeneous soln. and the solvent may be selected from ethers, ketones, esters and nitriles; examples are: acetone, methyl ethyl ketone, cyclohexanone, dimethoxyethane, diethylene glycol dimethyl ether, tetrahydrofuran and dioxane. A minor amount, e.g. up to 10% by volume of a more polar solvent, e.g. dimethyl formamide may also be present. Examples of dianhydrides, which may be used in a molar excess of up to 10%, are pyromellitic dianhydride and 3,3<SP>1</SP>,4,4<SP>1</SP>-benzophenone tetracarboxylic dianhydride. The diamine may be added in successive amounts over a period until 90-95 mol per cent has been added and then reaction allowed to proceed for a comparable time before completing the addition. Examples of diamines are 4,4<SP>1</SP>-diaminodiphenyl ether, 4,4<SP>1</SP>-diaminodiphenyl methane, m-phenylene diamine and p-phenylene diamine. Fibres, films or other shaped objects may be obtained by converting the polyamide acid to a polyimide by thermal or chemical treatment.
GB1529266A 1966-04-06 1966-04-06 Production of Polyamic Acids and Polyimides Expired GB1162203A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1529266A GB1162203A (en) 1966-04-06 1966-04-06 Production of Polyamic Acids and Polyimides
FR1550077D FR1550077A (en) 1966-04-06 1967-04-04
NL6704840A NL6704840A (en) 1966-04-06 1967-04-05
DE19671745180 DE1745180A1 (en) 1966-04-06 1967-04-05 Process for the production of polyamino acids, polyimides and molded articles from them
BE696713D BE696713A (en) 1966-04-06 1967-04-06
CH488767A CH482757A (en) 1966-04-06 1967-04-06 Process for preparing polyamic acid
CH1542767A CH503769A (en) 1966-04-06 1967-11-03 Polyamic acids are prepd. by condensing an aromatic dianhydride (I) with an aromatic di-primary amine (II) in an org. liquid medium (III), in which the reactant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1529266A GB1162203A (en) 1966-04-06 1966-04-06 Production of Polyamic Acids and Polyimides

Publications (1)

Publication Number Publication Date
GB1162203A true GB1162203A (en) 1969-08-20

Family

ID=10056480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1529266A Expired GB1162203A (en) 1966-04-06 1966-04-06 Production of Polyamic Acids and Polyimides

Country Status (6)

Country Link
BE (1) BE696713A (en)
CH (1) CH482757A (en)
DE (1) DE1745180A1 (en)
FR (1) FR1550077A (en)
GB (1) GB1162203A (en)
NL (1) NL6704840A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962278A (en) 1970-12-11 1976-06-08 Westinghouse Electric Corporation N,n'bis(phthalic anhydride) diimides
GB2157303A (en) * 1984-03-05 1985-10-23 Rogers Corp Co-solvent accelerator and method for conversion of polyamide-acid, solution to polylmide
US20130171520A1 (en) * 2010-07-14 2013-07-04 Ube Industries, Ltd. Aqueous polyimide precursor solution composition and method for producing aqueous polyimide precursor solution composition
CN114085380A (en) * 2021-12-06 2022-02-25 万华化学集团股份有限公司 Thermoplastic polyimide resin and preparation method thereof
US11407868B2 (en) 2012-01-13 2022-08-09 Ube Industries, Ltd. Method for producing aqueous polyimide precursor solution composition
US11407857B2 (en) 2011-09-09 2022-08-09 Ube Industries, Ltd. Method for producing aqueous polyimide precursor solution composition

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1168494A (en) * 1967-04-14 1969-10-29 Monsanto Chemicals Production of Fluorine-Containing Polymers
US3663492A (en) * 1970-01-31 1972-05-16 Dynamit Nobel Ag Process for the preparation of polyamidocarboxylic acids
DE4001445A1 (en) * 1990-01-19 1991-07-25 Basf Lacke & Farben METHOD FOR PRODUCING POLYAMID ACIDS AND POLYIMIDES

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962278A (en) 1970-12-11 1976-06-08 Westinghouse Electric Corporation N,n'bis(phthalic anhydride) diimides
GB2157303A (en) * 1984-03-05 1985-10-23 Rogers Corp Co-solvent accelerator and method for conversion of polyamide-acid, solution to polylmide
US20130171520A1 (en) * 2010-07-14 2013-07-04 Ube Industries, Ltd. Aqueous polyimide precursor solution composition and method for producing aqueous polyimide precursor solution composition
US11401418B2 (en) 2010-07-14 2022-08-02 Ube Industries, Ltd. Method for producing aqueous polyimide precursor solution composition
US11407857B2 (en) 2011-09-09 2022-08-09 Ube Industries, Ltd. Method for producing aqueous polyimide precursor solution composition
US11407868B2 (en) 2012-01-13 2022-08-09 Ube Industries, Ltd. Method for producing aqueous polyimide precursor solution composition
CN114085380A (en) * 2021-12-06 2022-02-25 万华化学集团股份有限公司 Thermoplastic polyimide resin and preparation method thereof
CN114085380B (en) * 2021-12-06 2023-09-19 万华化学集团股份有限公司 Thermoplastic polyimide resin and preparation method thereof

Also Published As

Publication number Publication date
DE1745180A1 (en) 1971-08-05
CH482757A (en) 1969-12-15
FR1550077A (en) 1968-12-20
NL6704840A (en) 1967-10-09
BE696713A (en) 1967-09-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees