POLYISOCYANURATE CONTAINING MOULDING COMPOSITIONS

摘要

Ethylenically unsaturated monomer solutions containing ethylenically unsaturated polyisocyanurate resins are thickened to moldable non-sticky gels by the formation in said solution of minor amounts of cross-linked polyurethane resin mixtures. These are made by the addition of polyisocyanates and certain low molecular weight polyols and urethane formation catalysts. When these moldable gels are fully cured, their physical properties are nearly equal to those cast from the ungelled polyisocyanurate monomer copolymer.