METHACRYLATE MONOMER-BASED COMPOSITION

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. 本申请涉及双组分组合物，包含：组合物A，包含：具有至少两个封端甲基丙烯酸酯官能团的至少一种聚氨酯P，相对于组合物A的总重量，所述聚氨酯P的含量为至少6重量％，至少一种还原剂，和至少一种甲基丙烯酸酯单体；组合物B，包含：至少一种氧化剂，和任选的至少一种甲基丙烯酸酯单体；所述聚氨酯P通过包括以下步骤的方法获得：E1)制备NCO封端的聚氨酯的步骤，包括以下成分之间的加聚反应：i)至少一种多元异氰酸酯，和ii)至少一种多元醇；E2)使在步骤