Composition for tank with single-layer wall
First Claim
1. A controlled hydrocarbon permeability composition comprising a mixture of polymer material (4) and of fillers, characterized in that fillers (5) are mineral and selected to adsorb and to trap an amount of hydrocarbons discharged through said polymer so as to reduce the permeability of said composition.
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Abstract
The present invention relates to a composition comprising a mixture of polymer material (4) and of mineral fillers (5) allowing to obtain a sealing barrier to hydrocarbons. The mixture comprises a predetermined proportion of specific mineral fillers for adsorption of all or part of the hydrocarbons that pass through the material by permeability. The proportion is determined depending on the permeability of the polymer material. The invention also relates to its applications to hydrocarbon tanks (gasoline, diesel oil, solvents) for example for motor vehicles, or hydrocarbon-carrying lines.
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Citations
20 Claims
- 1. A controlled hydrocarbon permeability composition comprising a mixture of polymer material (4) and of fillers, characterized in that fillers (5) are mineral and selected to adsorb and to trap an amount of hydrocarbons discharged through said polymer so as to reduce the permeability of said composition.
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