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GB1343851A - Polyimide polymers - Google Patents

Polyimide polymers

Info

Publication number
GB1343851A
GB1343851A GB152671A GB152671A GB1343851A GB 1343851 A GB1343851 A GB 1343851A GB 152671 A GB152671 A GB 152671A GB 152671 A GB152671 A GB 152671A GB 1343851 A GB1343851 A GB 1343851A
Authority
GB
United Kingdom
Prior art keywords
polyimide
per cent
films
polyimides
coating
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
GB152671A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB1343851A publication Critical patent/GB1343851A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/12—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2379/00—Other polymers having nitrogen, with or without oxygen or carbon only, in the main chain
    • B32B2379/08—Polyimides

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)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

1343851 Laminates MINNESOTA MINING & MFG CO 12 Jan 1971 [13 Jan 1970] 1526/71 Heading B5N [Also in Division C3] Solid, tack-free, linear, fusible, thermosettable polyimides of benzophenone tetracarboxylic dianhydride and a C 3-12 saturated aliphatic diamine in proportions within 2% of stoichiomotric have: (a) an inherent viscosity (0À5 wt. per cent in m-cresol at 25‹ C.) of 0À1 to 2À0; (b) a softening point of 150‹ to 300‹ C. by DTA in helium at 740 mm. and a temperature rise of 30‹ C./minute; and (c) substantially complete solubility for 10 wt. per cent polymer in 90 wt. per cent m-cresol at 25‹ C.; and can be rendered thermally set by heating for 10 hours at 200‹ C. while releasing not more than 1 wt. per cent volatiles. Such polyimides can be obtained by chemical dehydration of the linear polyamide acid. It is stated that thermal dehydration leads to simultaneous imidization and cross-linking rendering the polymer unsuitable for many applications due to excessive volatiles and/or insolubility and infusibility. The soluble polyimides may be dissolved in cresol or a mixture of at least 40 wt. per cent thereof with benzene, toluene, xylene, methylene chloride, trichloroethylene or carbon tetrachloride. Solutions, films or powders of the polyimides may be used for coating, adhesive, moulding or casting applications, e.g. as primers for polyimide films; as a coating on polyimide-insulated wire which is then wound on a core and the assembly heated to fuse the polyimide coating but not the polyimide insulation; as an adhesive interlayer for laminating polyimide and copper films; or to adhere and/or insulate metal motor core pieces. Glass cloth impregnated with the polyimide solution and dried may also be used as an adhesive layer. In examples polyamide acids from benzophenone tetracarboxylic dianhydride and hexa-, octa-, nona- or dodeca-methylene diamine, 1,3- diaminopropane or 1,4-bis-(aminomethyl)cyclohexane are cyclized with a mixture of pyridine and acetic anhydride at temperatures up to 85‹ C. The products as precast films or a coating on a substrate are used to adhere polyimide films to themselves or to copper.
GB152671A 1970-01-13 1971-01-12 Polyimide polymers Expired GB1343851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US264470A 1970-01-13 1970-01-13

Publications (1)

Publication Number Publication Date
GB1343851A true GB1343851A (en) 1974-01-16

Family

ID=21701764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB152671A Expired GB1343851A (en) 1970-01-13 1971-01-12 Polyimide polymers

Country Status (6)

Country Link
CA (1) CA968094A (en)
CH (1) CH542895A (en)
DE (1) DE2103500A1 (en)
FR (1) FR2076073B1 (en)
GB (1) GB1343851A (en)
NL (1) NL7019087A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048315A2 (en) * 1980-09-22 1982-03-31 National Aeronautics And Space Administration Process for preparing high temperature polyimide film laminates
DE3215944A1 (en) * 1981-05-06 1982-12-02 Ube Industries, Ltd., Ube, Yamaguchi AROMATIC IMIDPOLYMER LAMINATE AND METHOD FOR PRODUCING THE SAME
GB2169553A (en) * 1985-01-16 1986-07-16 Rogers Corp Method of making tape for automated bonding of integrated circuits and tape made therefrom
WO2009016083A1 (en) * 2007-08-02 2009-02-05 Basf Se Degradation accelerator for polymers and polymer article comprising it

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507765A (en) * 1966-05-05 1970-04-21 Gen Electric Method for electrocoating a polyamide acid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048315A2 (en) * 1980-09-22 1982-03-31 National Aeronautics And Space Administration Process for preparing high temperature polyimide film laminates
EP0048315A3 (en) * 1980-09-22 1982-06-16 National Aeronautics And Space Administration Process for preparing high temperature polyimide film laminates
DE3215944A1 (en) * 1981-05-06 1982-12-02 Ube Industries, Ltd., Ube, Yamaguchi AROMATIC IMIDPOLYMER LAMINATE AND METHOD FOR PRODUCING THE SAME
GB2169553A (en) * 1985-01-16 1986-07-16 Rogers Corp Method of making tape for automated bonding of integrated circuits and tape made therefrom
WO2009016083A1 (en) * 2007-08-02 2009-02-05 Basf Se Degradation accelerator for polymers and polymer article comprising it

Also Published As

Publication number Publication date
DE2103500A1 (en) 1971-07-22
CA968094A (en) 1975-05-20
CH542895A (en) 1973-10-15
FR2076073A1 (en) 1971-10-15
FR2076073B1 (en) 1975-01-17
NL7019087A (en) 1971-07-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee