Minotelechelic oligomers of partially hydrogenated 1,3 diene...

Details Minotelechelic oligomers of partially hydrogenated 1,3 diene... Minotelechelic oligomers of partially hydrogenated 1,3 diene...

C - Chemistry, Metallurgy

07

C

C07C 211/20 (2006.01) C07C 211/25 (2006.01) C08C 19/02 (2006.01) C08F 36/04 (2006.01)

Patent

CA 2193522

he invention centres on compounds corresponding to the formula [P (ACH2NH2)x in which P represents an oligomer group of partially hydrogentated 1,3-diene, x is almost equal to 2, A represents a divalent group such as (see Fig. I) or (see Fig. II). These compounds are obtained by selective hydrogenation of compounds of the formula [P1 (ACN)x in which P represents an oligomer group of 1,3-diene. They offer the advantage of being liquid at a low viscosity and light-coloured. The compounds can be used in synthesizing block copolymers and polyureas, and in polyurethane formulations as an "activator" for the reactivity of hydroxyl-terminated polybutadienes.

L'invention a pour objet des composés répondant à la formule: [P](ACH2NH2)x dans laquelle P représente un reste d'oligomère de 1,3-diène partiellement hydrogéné, x est pratiquement égal à 2, A représente un reste divalent tel que: (voir fig. I) ou (voir fig. II) Ces composés sont obtenus par hydrogénation sélective de composés de formule [P1](ACN)x dans laquelle P représente un reste d'oligomère de 1,3-diène. Ils ont l'avantage d'être liquides à faible viscosité et de faible couleur. Ils sont utilisables notamment dans la synthèse de copolymères blocs, dans la synthèse de polyurés, dans les formulations polyuréthanes en tant que "activateur" de réactivité de polybutadiènes hydroxylés.

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