Urea (meth)acrylate or urea-urethane (meth)acrylate oligomer, compositions comprising same and uses thereof

Abstract

The present invention relates to a urea (meth)acrylate or urea-urethane (meth)acrylate oligomer comprising: at least two urea bonds, in particular at least two hindered urea bonds, at least two (meth)acryloyloxy groups, in particular at least two acryloyloxy groups, and optionally at least one urethane bond, in particular optionally at least two urethane bonds. The present invention is also directed toward a polymerizable composition comprising at least one oligomer according to the present invention and optionally at least one other ethylenically unsaturated compound. A process for manufacturing a crosslinked product, comprising a step of crosslinking a polymerizable composition according to the invention, also forms part of the invention. A process for manufacturing a three-dimensional object, comprising an additive manufacturing step using a polymerizable composition according to the invention, also forms part of the invention. The invention is also directed toward a crosslinked product obtained by crosslinking a polymerizable composition according to the invention or obtained via a process according to the invention. Finally, the invention relates to the use of an oligomer according to the invention as a binder in a polymerizable composition or in a composition for additive manufacturing, and to the use of a polymerizable composition according to the invention for the production of an ink, a coating, a material filled with fibrous or particulate reinforcements which may be carbon nanotubes or graphite, an adhesive, a molded material, an ink plate, an electrode binder, or an object obtained by additive manufacturing.

Dependencies are inferred from the claim text.