Free-radically polymerisable compound and composition

Abstract

The invention relates to a radically polymerisable compound represented by a structure of formula 1: PG-Sp-PCA-Sp-[OG (O) NH—K—NHC (O) O-Sp-PCA-Sp]n-PG (formula 1), wherein PG=in each case independently selected from a radically polymerisable group, R1=selected from hydrogen, a C1-C8 alkyl group, an aryl group and an araliphatic group having C6-C8 carbon atoms, R2=selected from hydrogen, a C1-C4 alkyl group; Sp=in each case independently of one another a spacer group selected from unbranched and branched alkylene with C1-C19 carbon atoms, which may additionally contain oxygen, sulfur and/or —OOC— in the carbon chain, or Sp is absent; PCA=in each case independently of one another a polycyclic group; K=an aliphatic acyclic, saturated or unsaturated unit having C1-C15 carbon atoms, an aliphatic cyclic, saturated or unsaturated unit having C3-C15 carbon atoms, or an aromatic or araliphatic unit having C6-C14 carbon atoms; n=1 to 9. The invention also relates to a process for preparing such a compound, a radically polymerisable composition containing such a compound, the use thereof and a cured dental material.

Dependencies are inferred from the claim text.