GB1105209A - Improvements in or relating to the production of thermally hardenable condensation products - Google Patents
Improvements in or relating to the production of thermally hardenable condensation productsInfo
- Publication number
- GB1105209A GB1105209A GB2620666A GB2620666A GB1105209A GB 1105209 A GB1105209 A GB 1105209A GB 2620666 A GB2620666 A GB 2620666A GB 2620666 A GB2620666 A GB 2620666A GB 1105209 A GB1105209 A GB 1105209A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycol
- aminophenyl
- bis
- aromatic
- propane
- 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
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
- C08G73/16—Polyester-imides
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—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 H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Paints Or Removers (AREA)
Abstract
A heat-hardenable condensation product is obtained from an aromatic diprimary amine, an aromatic tricarboxylic acid anhydride and excess of a C2- 6 glycol, the unreacted glycol being distilled off. Diamines specified include bis(aminophenyl) methane, bis(aminophenyl)-propane and bis(aminophenyl) ether. 0.9 to 1.1 moles may be used per mole of tricarboxylic acid anhydride. The aromatic diamine may be supplemented with a minor amount of an aliphatic or cycloaliphatic diamine. Tricarboxylic acids specified include trimellitic anhydride. It may be reacted with the C2- 6 glycol before reaction with the diamine. Glycols specified include ethylene glycol and propane-1,3-diol. The glycol may be supplemented with up to 30% of a C3- 8 triol, e.g. glycerol. The condensation may occur in the presence of an esterification catalyst, e.g. Sb2O3 or stannic oxide. The product may be dissolved in cresol, optionally diluted with a hydrocarbon, and the resulting solution applied to an electrical conductor and hardened.ALSO:An electrically insulating lacquer comprises a cresol solution of a thermosetting condensation product of an aromatic tricarboxylic acid mono-anhydride, excess of a glycol having 2 to 6 carbon atoms and an aromatic diprimary amine, the unreacted glycol being subsequently distilled off. Part of the glycol may be replaced by a C3-8 triol. The cresol solution may be further diluted with a hydrocarbon, e.g. toluene, xylene or solvent naphtha. The laquer may be applied by flame-spraying, fluidized bed coating or normal wire-coating techniques. In typical Example 1 a condensation product prepared from trimellitic anhydride, ethylene glycol and bis(4-aminophenyl) methane in the presence of Sb2O3 is dissolved in cresol and xylene and xylene and applied to Cu wire in a horizontal wire-coating furnace. In other examples additional reactants were propane-1,3-diol, glycerol, bis(4-aminophenyl) ether, bis (4-aminophenyl) propane and stannic oxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1965B0082808 DE1570280C3 (en) | 1965-07-13 | 1965-07-13 | Process for the production of thermosetting condensation products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1105209A true GB1105209A (en) | 1968-03-06 |
Family
ID=6981666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2620666A Expired GB1105209A (en) | 1965-07-13 | 1966-06-13 | Improvements in or relating to the production of thermally hardenable condensation products |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1570280C3 (en) |
| GB (1) | GB1105209A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616171B1 (en) * | 1970-10-09 | 1981-04-15 |
-
1965
- 1965-07-13 DE DE1965B0082808 patent/DE1570280C3/en not_active Expired
-
1966
- 1966-06-13 GB GB2620666A patent/GB1105209A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1570280A1 (en) | 1970-02-12 |
| DE1570280C3 (en) | 1979-11-15 |
| DE1570280B2 (en) | 1977-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3749722A (en) | Method for preparing amides of trimellitic anhydride and product therefrom | |
| GB1028927A (en) | Linear polymeric amide-modified polyimides | |
| GB1063038A (en) | Polyamides | |
| US3407176A (en) | Polyamide-acids and polyimide from a mixture of dianhydrides | |
| US3058948A (en) | Metal salt-amine complex and process for preparing polyester resin composition therewith | |
| US3692740A (en) | Phnolic-solvent-soluble aromatic polyamide-imide and process for producing same | |
| GB1069150A (en) | Improvements in or relating to the production of polyesterimide resins | |
| US3726712A (en) | Double coated electrical conductor | |
| GB1105209A (en) | Improvements in or relating to the production of thermally hardenable condensation products | |
| GB1404482A (en) | Polyamideimides and their precursor polyamic acids | |
| GB1046756A (en) | Improvements in or relating to electrical conductors and processes for producing thesame | |
| GB1006560A (en) | Improvements in and relating to methods of insulating wires | |
| US4121266A (en) | Polyamide-imide precondensates | |
| GB1155230A (en) | Improvements in or relating to the Electrical Insulation of Electrical Conductors | |
| GB1333939A (en) | Electrical conductors coated with polyamideimide resins prepared from the reaction of aromatic diisocyanates with mixtures of polycarboxylic acids and anhydrides | |
| GB1095663A (en) | Polyesterimide resins | |
| US3988283A (en) | Wire enamel with low soldering temperature | |
| US3459829A (en) | Polyester imide resins from imide group containing polyvalent carboxylic acids containing at least three carboxy groups | |
| US3829399A (en) | Novel polyamideimide precursors and hardenable compositions containing the same | |
| US2985624A (en) | Preparation of zinc polyesters | |
| US4145334A (en) | Polyester imide resins | |
| US2989491A (en) | Composition comprising polyesteramide, epoxy resin, and isocyanate modified cellulose acetate and wire coated therewith | |
| US4267232A (en) | Conductors having insulation of polyester imide resin | |
| US4012556A (en) | Self-bonding varnish for magnet wires comprising a polyalkylenetrimellitate ester imide | |
| SE300842B (en) |