US Patent 11235215 Hollow body club heads with filler materials

Embodiments of golf club heads comprising a nanocomposite to attenuate sound of the club head are described herein. The nanocomposite comprises graphene and a polymer. The graphene can be in the form of a powder, where the graphene is suspended within the polymer. The nanocomposite can be disposed within an interior surface of the club head. The nanocomposite can be applied to selected portions of the club head such as behind the strike face. The nanocomposite comprising graphene and the polymer can provide an alternative filler material over homogenous materials to attenuate the sound to provide a pleasing sound and feel to a golfer.