Vinyl ethers in unsaturated polyester resins, vinyl esters and vinyl ester urethanes for structural applications

摘要

The invention relates to curable resin compositions based on an unsaturated prepolymer, a vinyl ether monomer that can be cross-linked with it and one or more other monomers for use as structural resins. The resin composition is cured with the aid of a radical-forming system that is unstable in the temperature range of −20° C. to +110° C., and contains an unsaturated prepolymer having an acid number of less than 10 mg of KOH per g and a vinyl ether monomer according to formula (I) or (II):; $PTEXTPDATA\—CH\═CH\—O\—R\ \ (I)/PDAT/PTEXT$ ;or; $PTEXTPDAT(A\—CH\═CH\—O)/PDATHILSBPDATn/PDAT/SB/HILPDAT\—R\′\ \ (II)/PDAT/PTEXT$ ;with A, R, R′ and n having the described meanings. The invention also relates to a process for the preparation of such resin compositions and uses thereof.