Patent No. EP4242247 (titled "Use Of Coating Compositions For Wind Turbine Blades") was filed by Hempel on Jun 26, 2020. The application was issued on Mar 19, 2025.
Coating compositions for wind turbine blades that provide superior erosion protection through a blend of polyetheraspartic esters and a curing agent. The compositions, comprising a polyetheraspartic ester base with an X component, are specifically designed for leading edge protection (LEP) and can be applied as a topcoat or LEP coating. The compositions achieve enhanced erosion resistance through their unique blend of polyetheraspartic esters and curing agent, while maintaining excellent adhesion properties. The coatings can be used in both leading edge protection and as a topcoat for wind turbine blades.

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