Novel polyestersiloxaneacrylates, their use as additives in radiation-curable coatings and printing inks and process for their production

摘要

Polyester siloxane acrylate compounds are prepared by reaction of at least one organically modified polysiloxane, at least one polyisocyanate having at least 2 isocyanate groups and at least one polyester acrylate or polyester methacrylate. Polyester siloxane acrylate compounds (I) are prepared by reaction of: (a) at least one organically modified polysiloxane of formula (1); (b) at least one polyisocyanate having at least 2 isocyanate groups and; (c) at least one polyester acrylate or polyester methacrylate of formula (3) optionally in the presence of inhibitors, catalysts and optionally other compounds having isocyanate-reactive groups. [Image] [Image] [Image] [Image] R1>1-4C alkyl; A : -R2>-X; R2>formula (2); R3>2-11 C divalent alkyl or alkenyl; R4>divalent optionally substituted alkyl or aryl; R5>H or methyl; R6>formula (4); x : 0 or 1; y : 0-100; y' : 1-50; X : isocyanate-reactive group An independent claim is included for radiation curable coatings printing inks or lacquers containing 0.01-10 wt.% of the compounds (I).