Functionalized multisequenced macromonomers and their...

C - Chemistry – Metallurgy – 08 – F

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C08F 297/02 (2006.01) C08F 290/04 (2006.01) C08F 299/00 (2006.01)

Patent

CA 2076027

A functionalized multisequenced macromonomer of formula (I) or formula (II), wherein each of blocks A, B and C represents a sequence of a monomer selected from the classes of acrylic, vinylaromatic, methacrylic, diene-containing, vinylpyridine, vinylpyrrolidone, alkylene oxide, lactam, lactone and maleimide monomers, with the proviso that either one or both of blocks A and C is selected from a class different from B, and that at least one of blocks A, B or C is a (meth)acrylic sequence; m, n, and p are integers representing the number of monomer structural units in the sequence in question, e.g.: 3 Í n Í 1000, 0 Í m Í 1000 and 0 Í p Í 1000, with the proviso that m and p are both 0 at the same time; and F is a grouping which terminated by 0-, OH or an alpha,beta-ethylene unsaturation.

L'invention porte sur un macromonomère multiséquencé fonctionnalisé de formule (I) ou bien de formule (II), dans lesquelles chacun des blocs A, B et C représente une séquence d'un monomère choisi parmi les classes des monomères acryliques, vinylaromatiques, méthacryliques, diéniques, vinylpyridines, vinylpyrrolidones, oxydes d'alkylène, lactames, lactones et maléimides, avec les conditions que l'un au moins des blocs A et C soit choisi dans une classe différente de celle du bloc B, et que l'un au moins des blocs A, B ou C est une séquence (méth)-acrylique; m, n et p sont des nombres entiers représentant le nombre de motifs monomères dans la séquence considérée, tels que 3 < n < 1000, 0 < m < 1000 et 0 < p < 1000, avec la condition que m et p ne sont pas simultanément égaux à 0; et F est un groupement terminé par 0-, par OH ou par une insaturation .alpha.,.beta.-éthylénique.

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