GB1440311A - Polyester film - Google Patents
Polyester filmInfo
- Publication number
- GB1440311A GB1440311A GB3168872A GB3168872A GB1440311A GB 1440311 A GB1440311 A GB 1440311A GB 3168872 A GB3168872 A GB 3168872A GB 3168872 A GB3168872 A GB 3168872A GB 1440311 A GB1440311 A GB 1440311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyester
- film
- reaction mixture
- intrinsic viscosity
- biaxially oriented
- 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
- H01B3/42—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 polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
- H01B3/426—Polycarbonates
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/64—Polyesters containing both carboxylic ester groups and carbonate groups
-
- 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
- H01B3/42—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 polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
1440311 Polyester film IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Oct 1973 [6 July 1972] 31688/72 Heading C3R A shaped article is obtained by shaping a biaxially oriented heat set film of a polyester chain extended with a carbonate of a monohydric phenol. The preferred chain extender is diphenyl carbonate and the preferred polyester is poly(ethylene terephthalate). The chain extended polyester is made by polymerizing a glycol with a dicarboxylic acid or a diester thereof and then adding the chain extender preferably when the intrinsic viscosity of the reaction mixture has risen above 0À3 dl./g. measured on a 1% wt. solution in o-chlorophenol at 25‹ C., and continuing the reaction preferably until the intrinsic viscosity of the reaction mixture is at least 0À6 dl./g. The polymer is converted into film by extrusion and the film biaxially oriented and heat set by known methods. In the examples films are prepared from polyethylene terephthalate chainextended with diphenyl carbonate and containing titanium dioxide as filler and the films are shaped into slot liners and stamped interphase insulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3168872A GB1440311A (en) | 1972-07-06 | 1972-07-06 | Polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3168872A GB1440311A (en) | 1972-07-06 | 1972-07-06 | Polyester film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1440311A true GB1440311A (en) | 1976-06-23 |
Family
ID=10326929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3168872A Expired GB1440311A (en) | 1972-07-06 | 1972-07-06 | Polyester film |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1440311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2370765A1 (en) * | 1976-11-12 | 1978-06-09 | Bayer Ag | NEW POLYESTER-POLYOL CARBONIC ACID ESTERS AND THEIR PREPARATION PROCESS |
-
1972
- 1972-07-06 GB GB3168872A patent/GB1440311A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2370765A1 (en) * | 1976-11-12 | 1978-06-09 | Bayer Ag | NEW POLYESTER-POLYOL CARBONIC ACID ESTERS AND THEIR PREPARATION PROCESS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |