Verfahren zur Herstellung leitfähiger Polymerzusammensetzungen
A conductive polymer composition having PTC characteristics comprising a polymer matrix, constituting from 20 to 98 per cent by weight of the composition, throughout which is dispersed a mixture of conductive carbon blacks constituting from 2 to 80 per cent by weight of the composition, the mixture...
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| creator | GUILFOY, ANDREW AUSTIN FUNT, JOHN MORRIS |
| description | A conductive polymer composition having PTC characteristics comprising a polymer matrix, constituting from 20 to 98 per cent by weight of the composition, throughout which is dispersed a mixture of conductive carbon blacks constituting from 2 to 80 per cent by weight of the composition, the mixture comprising a first conductive carbon black and a second conductive carbon black, is characterised in that each of the carbon blacks has a structure level, as measured by DBP technique, of 40 to 150 cc/100g and each constitutes from 1 to 40 per cent by weight of the composition, the first carbon black comprising particles having average size in the range from 35 to 300 nm and the second carbon black comprising particles having average size in the range from 15 to 25 nm. |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS RESISTORS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | Verfahren zur Herstellung leitfähiger Polymerzusammensetzungen |
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