Abstract: The present invention relates to a sizing composition in the form of a physical gel for glass strands which contains 0.1 to 5% by weight of at least one texturing agent chosen from xanthans, guars and succinoglycans, 2 to 8% by weight of at least one film-forming agent, 0.1 to 8% by weight of at least one compound chosen from plasticizing agents, surface-active agents and dispersing agents, 0.1 to 4% by weight of at least one coupling agent, and 0 to 6% by weight of at least one additive. Another subject-matter of the present invention is glass strands coated with the abovementioned sizing composition and the composite materials containing an organic or inorganic material reinforced with the said glass strands.

Abstract: Process for surface functionalization of a glass reinforcement, characterized in that the said reinforcements are chemically modified by means of surface treatment by the action of a homogeneous plasma at atmospheric or sub-atmospheric pressure in a controlled, oxidizing or nitriding gas atmosphere, and in that the said surface portion is contacted with an aqueous impregnating solution of an organic or inorganic matrix, or directly with the matrix.

Abstract: This composition comprises, in water: (A) at least one adhesion promoter bearing at least one amine functional group and/or at least one epoxy functional group; (B) at least one monomer and/or at least one prepolymer intended to form a polymer system capable of reacting covalently with the amine and/or epoxy functional group(s) of the constituent (A); (C) at least one curing agent or crosslinker used in an amount equivalent to ±30 mol % of the stoichiometry of the constituent (B); the constituent (B) being present in the composition in an amount of 0.5 to 5% by weight, in particular in an amount of 1.5% by weight, expressed as solids in water; and the constituent (A) being present in an amount of 0.2 to 3 parts by weight per 100 parts by weight of the constituent (B).

Abstract: (EN) Process for surface functionalization of a glass reinforcement, characterized in that the said reinforcements are chemically modified by means of surface treatment by the action of a homogeneous plasma at atmospheric or sub-atmospheric pressure in a controlled, oxidizing or nitriding gas atmosphere, and in that the said surface portion is contacted with an aqueous impregnating solution of an organic or inorganic matrix, or directly with the matrix.

Abstract: The present invention relates to a sizing composition in the form of a physical gel for glass strands which comprises (as % by weight): 0.1 to 5% of at least one texturing agent chosen from xanthans, guars and succinoglycans 2 to 8% of at least one film-forming agent 0.1 to 8% of at least one compound chosen from the group consisting of plasticizing agents, surface-active agents and dispersing agents 0.1 to 4% of at least one coupling agent 0 to 6% of at least one additive. Another subject-matter of the present invention is the glass strands coated with the abovementioned sizing composition and the composite materials comprising an organic or inorganic material reinforced with the said glass strands.

Abstract: The present invention relates to a method for preparing lamellar nanoparticles, the method including: a) mixing a laminated material with a blowing agent chosen from polyols to obtain an expanded laminated material, b) reacting the expanded laminated material with a grafting agent in the presence of water and an acid, said agent corresponding to the general formula RaXY4-a ?in which R represents a hydrogen atom or a hydrocarbon-based radical incorporating 1 to 40 carbon atoms, the R groups possibly being identical or different; X represents a silicon, zirconium or titanium atom; Y is an alkoxy group containing 1 to 12 carbon atoms, or a halogen; and a is equal to 1, 2 or 3; and c) recovering at least one lamellar nanoparticle.