Abstract: The application relates to a two-component composition comprising: a composition A comprising: at least one polyurethane P having at least two terminal methacrylate functions, the polyurethane content P being at least 6% by weight relative to the total weight of composition A; at least one reducing agent; and at least one methacrylate monomer; a composition B comprising: at least one oxidizing agent; and optionally at least one methacrylate monomer, said polyurethane P being obtained by a method comprising: E1) a step of preparing an NCO-terminated polyurethane, comprising the polyaddition reaction between: i) at least one polyisocyanate; and ii) at least one polyol; E2) reacting the product formed at the end of step E1) with at least one methacrylate monomer M having at least one hydroxyl function.

Abstract: The present invention relates to a photopolymerizable adhesive composition containing a (meth)acrylic matrix, a (meth)acrylic block copolymer or a blend of (meth)acrylic block copolymers, and one or more photoinitiator(s).

Abstract: The present invention relates to a photopolymerizable adhesive composition containing a (meth)acrylic matrix, a (meth)acrylic block copolymer or a blend of (meth)acrylic block copolymers, and one or more photoinitiator(s).

Abstract: The present invention relates to an additive composition which can be used in particular in a structural adhesive. According to the invention, characteristically, it comprises: at least one styrene-free block copolymer formed of at least two blocks and in particular of at least three blocks; and a plurality of particles of the core/shell type comprising a first polymer of elastomer type.

Abstract: Composition which can be used in structural adhesives, essentially comprising a polymer system suitable for being used in a methacrylate matrix, said polymer system comprising styrene-free block copolymers formed from at least two blocks and preferably from at least three blocks, and said polymer system being solubilized in a matrix of linear or branched acrylic and/or methacrylic monomers and/or of cyclic methacrylates and/or of aromatic methacrylates. Application by incorporation into an adhesive formulation of methacrylate type.

Abstract: Composition which can be used in structural adhesives, essentially comprising a polymer system suitable for being used in a methacrylate matrix, said polymer system comprising styrene-free block copolymers formed from at least two blocks and preferably from at least three blocks, and said polymer system being solubilized in a matrix of linear or branched acrylic and/or methacrylic monomers and/or of cyclic methacrylates and/or of aromatic methacrylates. Application by incorporation into an adhesive formulation of methacrylate type.