Patent ID: 8376194

Claim:
A powder or liquid dispenser comprising: at least one reservoir that is suitable for containing powder or liquid to be dispensed; a dispenser member; an actuator member that is suitable for actuating said dispenser member; and a dispenser orifice through which the powder or liquid is dispensed, wherein the dispenser member is selected from one of a pump and a valve, and at least one portion of the dispenser that is in contact with the powder or liquid is made of a non-stick material comprising at least one inherently electrostatically dissipative polymer or copolymer (IDP) that inherently dissipates electrostatic charge, wherein said dispenser member is a metering valve, the dispenser further comprising a HFA gas as a propellant gas for dispensing the powder or liquid, and said IDP comprises at least one of a polyetherester, a polyetherurethane, a polyetheresteramide, and a polyacrylic acid.