Two-component polyurethane / vinyl ester hybrid foam system and its use as a flame retardant material and material for filling openings in buildings with foam
AssigneeHilti Aktiengesellschaft
InventorArne Reinheimer
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Abstract
A two-component polyurethane/vinyl ester hybrid foam system is formed of a polyol component (A), which contains at least one polyol, a catalyst for the reaction of the polyol with the polyisocyanate, at least one polymerizable vinyl monomer and water or a blowing agent on the basis of a compressed or liquefied gas as foam-forming agent, and a polyisocyanate component (B), which contains at least one polyisocyanate and a catalyst for the polymerization of the vinyl monomer, and is designed for use as a flame retardant material and material for filling openings, cable and pipe bushings in walls, floors and/or of buildings for the purpose of fire protection.
Claims32
A two-component polyurethane/vinyl ester hybrid foam system with a polyol component (A), which contains at least one polyol, a catalyst for the reaction of the polyol with the polyisocyanate, at least one polymerizable vinyl monomer and water or a blowing agent on the basis of a compressed or liquefied gas as foam-forming agent, and a polyisocyanate component (B), which contains at least one polyisocyanate and a catalyst for the polymerization of the vinyl monomer, characterized in that the polyol component (A) contains at least one compound of a multivalent metal and at least one polymerizable vinyl monomer, which forms a chelate complex with the multivalent metal.
Dependencies are inferred from the claim text.