Oligomeric urethane acrylates, process for their preparation...

Details Oligomeric urethane acrylates, process for their preparation... Oligomeric urethane acrylates, process for their preparation...

C - Chemistry, Metallurgy

08

G

C08G 18/67 (2006.01) C09D 175/14 (2006.01)

Patent

CA 2638044

Oligomeric urethane acrylates containing, in the molecule, on statistical average, at least two structural units of the general formula: R{-X-CH2-CH(- CH2-O-(O)-CR1=CH2)[-O-C(O)-NH-]}n in which the index and the variables are each defined as follows: n is from 1 to 6; R is a monovalent to hexavalent, low molecular weight or oligomeric, organic radical; X is an oxygen atom or - C(O)-O- radical which is bonded to the R radical via the carbon atom; and R1 is a hydrogen atom, halogen atom, nitrile group, substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms, substituted or unsubstituted cycloalkyl group having from 3 to 6 carbon atoms or substituted or substituted aryl group having from 6 to 10 carbon atoms; process for their preparation and their use.

L'invention concerne un oligomère d'acrylate d'uréthane dont la molécule contient en moyenne statistique au moins deux unités structurales de formule générale (I) : R{-X-CH2-CH(-CH2-O-(O)-CR1=CH2)[-O-C(O)-NH-]}n, dans laquelle l'indice et les variables ont les significations suivantes : n représente un nombre compris entre 1 et 6 ; R représente un radical organique de faible masse moléculaire ou oligomère, monovalent ou hexavalent ; X représente un atome d'oxygène ou un radical -C(O)-O-, qui est relié au niveau de l'atome de carbone avec le radical R ; et R1 représente un atome d'hydrogène, un atome d'halogène, un groupement nitrile, un groupement alkyle substitué ou non substitué ayant de 1 à 6 atomes de carbone, un groupement cycloalkyle substitué ou non substitué ayant de 3 à 6 atomes de carbone ou un groupement aryle substitué ou non substitué ayant de 6 à 10 atomes de carbone ; son procédé de fabrication et son utilisation.

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