GB1487491A - N-hydroxyalkyltrimellitic acid imide condensation polymers and processes for their production - Google Patents
N-hydroxyalkyltrimellitic acid imide condensation polymers and processes for their productionInfo
- Publication number
- GB1487491A GB1487491A GB95275A GB95275A GB1487491A GB 1487491 A GB1487491 A GB 1487491A GB 95275 A GB95275 A GB 95275A GB 95275 A GB95275 A GB 95275A GB 1487491 A GB1487491 A GB 1487491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid imide
- jan
- condensation polymers
- polymers
- hydroxyalkyltrimellitic
- 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
-
- 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
-
- 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
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)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
1487491 Polyesterimides STANDARD OIL CO 9 Jan 1975 [11 Jan 1974 1 Aug 1974] 952/75 Heading C3R Condensation polymers in which at least one N-hydroxyalkyl trimellitic acid imide provides at least 75 mol per cent of the total monomers have an Inherent Viscosity of at least 0À3 dl./g. (0À5% w./v. in 60/40 w./w. phenol/C 2 H 2 Cl 4 at 25‹ C.). They may be obtained by melt polycondensation in the presence of a tin, titanium or antimony esterification catalyst. Specified optional comonomers are aminoacids, e.g. amino-acetic, -hexanoic or -benzoic acid; lactams, e.g. caprolactam; lactones, e.g. betapropier- or capro-lactone; hydroxyacids, e.g. salicylic or glycollic; and di-COOH/glycol halfesters, e.g. of ethylene glycol and maleic anhydride. Specific examples illustrate the preparation of homopolymers from trimellitic anhydride and ethanolamine in one or two stages. The polymers may be used for films, coatings or mouldings. Tale may be incorporated during the second (polycondensation) stage of the reaction as an anti-stick agent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US432569A US3880812A (en) | 1974-01-11 | 1974-01-11 | Poly(alkylenetrimellitate imides) and method of preparation |
| US05/493,558 US3944706A (en) | 1974-08-01 | 1974-08-01 | Self-bonding polyethylene trimellitate imide varnish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1487491A true GB1487491A (en) | 1977-09-28 |
Family
ID=27029555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB95275A Expired GB1487491A (en) | 1974-01-11 | 1975-01-09 | N-hydroxyalkyltrimellitic acid imide condensation polymers and processes for their production |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1487491A (en) |
| IT (1) | IT1032208B (en) |
-
1975
- 1975-01-09 GB GB95275A patent/GB1487491A/en not_active Expired
- 1975-01-10 IT IT4763375A patent/IT1032208B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1032208B (en) | 1979-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940109 |
