Process of making a composite product, especially a vehicle tire
AssigneePradom Limited
InventorMichel Berger
Life of this patent
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Abstract
The present invention relates to a process for the preparation of a composite material wherein the element used to reinforce the composite material is subjected to an electrostatic field induced by a high voltage electric current, said element being then impregnated with a liquid matrix material or precursor of matrix, while still under the influence of said field, and to the composite materials obtained by carrying out said process, notably vulcanized products, in particular vehicle tires, ceramics and electrodes.
Claims26
A process for the manufacturer of a vulcanized composite material having improved mechanical and wear properties, the composite material having reinforcing fibers that reinforce a vulcanizable matrix, comprising the steps of:
- subjecting the fibers in a dry state to an electrostatic field that is induced by a high-voltage electric current to prepare the fibers to be impregnated;
- impregnating said fibers with a vulcanizable liquid matrix or precursor of a vulcanizable matrix while still under the effect of said electrostatic field thereby consolidating bonding between the fibers and the matrix;
- and
- vulcanizing the impregnated fibers/matrix composite, thereby obtaining said vulcanized composite material.
A process for the manufacturer of a composite material usable as a vehicle tire having improved mechanical and wear properties, the composite material having tire reinforcing fibers that reinforce a tire matrix, comprising the steps of:
- subjecting the fibers in a dry state to an electrostatic field that is induced by a high-voltage electric current to prepare the fibers to be impregnated;
- impregnating said fibers with a liquid matrix or precursor of a matrix while still under the effect of said electrostatic field thereby consolidating bonding between the fibers and the matrix;
- and
- vulcanizing the impregnated fibers/matrix composite, so that the resulting vulcanized material is usable as a vehicle tire.
Dependencies are inferred from the claim text.