CASTING RESINS BASED ON ESTERS OF ACRYLIC ACID

1. Claims for the Contracting States BE, CH, DE, FR, GB, IT, LI, NL, SE Casting resins based on flowable hardenable acrylic and methacrylic acid esters and finely divided inorganic fillers, which contain organosilicon compounds as bonding agents, characterised in that the organosilicon compound possesses one or several ethylenically unsaturated groups and is contained in the resin in amounts between 0.2 and 4% by weight related to the finely divided inorganic filler and the casting resin additionally contains a metal acid ester of metals of the IVth or Vth sub-groups of the Periodic System of the elements in amounts between 0.05 and 1% by weight related to the finely divided inorganic filler and the ratio of metal acid ester : organosilicon compound lies between 1:10 and 10:2. 1. Claims for the Contracting State AT Stable, flowable, mouldable and cross-linkable mixture of flowable, hardenable acrylic and methacrylic acid esters and finely divided inorganic fillers, which contains organosilicon compound as bonding agent, characterised in that the organosilicon compound possesses one or several ethylenically unsaturated groups and is contained in the mixture in amounts between 0.2 and 4% by weight related to the finely divided inorganic fillers and the mixture additionally contains a metal acid ester of metals of the IVth or Vth sub-groups of the Periodic System of the elements in amounts between 0.05 and 1% by weight, related to the finely divided inorganic fillers, and the ratio of metal acid ester : organosilicon compound lies between 1:10 and 10:2.