Novel thermoprotections obtained by a filament winding process and use thereof

A composite material formed by crosslinking a thermosetting organic matrix impregnated into a reinforcement composed of mineral fibers or ceramic fibers, the matrix being predominantly composed of a liquid resin to which refractory reinforcing fillers are added,

• wherein, the fibrous reinforcement being composed of a yarn exhibiting, over its entire length, fibers forming protruding loops, the composite material is produced by winding the yarn onto a mandrel and by impregnating the wound yarn with organic matrix, so as to form a wound preform impregnated with organic matrix exhibiting the desired final geometry;
• the wound preform subsequently being crosslinked in an oven so as to form the final composite material;
• the winding of the preform being carried out so that, in view of the composition of the organic matrix and of the nature and constitution of the yarn forming the fibrous reinforcement, the organic matrix and the fibrous reinforcement are present in the material obtained, after crosslinking in an oven, in the following proportions by volume:
• between 65% and 75% of organic matrix,
• between 25% and 35% of fibrous reinforcements.