Abstract: A drumstick has a conventional tip and tapered shank, but the handle portion on the shaft has a wavy profile, with a nominal diameter and with the peaks rising above the nominal diameter and the valleys recessed below the nominal diameter. Whether or not the drumstick has a wavy handle, the outer surface of the drumstick has a tack which increases with increasing moisture of the drumstick outer surface, e.g., the tack increases between an initial condition of a drummer's dry skin against a dry drumstick surface and a play condition of a drummer's moist skin against a moist drumstick.

Abstract: A method of producing a viscoelastic polyurethane foam coating in which a polyisocyanate is reacted with a polyol to form a prepolymer. The prepolymer is reacted with a polyol having at least one pendant carboxylic acid group to form a prepolymer with a pendant carboxylic acid group. The prepolymer with a pendant carboxylic acid group is neutralized with a tertiary amine and then reacted with water or an organic or inorganic polyamine. An energy absorbing unit in which the coating produced by the above method is provided on a viscoelastic polyurethane foam layer.

Abstract: A method of producing a viscoelastic polyurethane foam coating in which a polyisocyanate is reacted with a polyol to form a prepolymer. The prepolymer is reacted with a polyol having at least one pendant carboxylic acid group to form a prepolymer with a pendant carboxylic acid group. The prepolymer with a pendant carboxylic acid group is neutralized with a tertiary amine and then reacted with water or an organic or inorganic polyamine. An energy absorbing unit in which the coating produced by the above method is provided on a viscoelastic polyurethane foam layer.