Patent ID: 8552113

Claim:
A windshield wiper blade comprising a first rubber component of a first polarity, a second rubber component of a second, greater polarity, and a chemically functionalized derivative of the first rubber component with a polarity greater than the first rubber component, wherein the first rubber component is natural rubber (NR) and the chemically functionalized derivative of the first rubber component is epoxidized natural rubber (ENR); the first rubber component is isoprene rubber (IR) and the chemically functionalized derivative of the first rubber component is epoxidized IR; or the first rubber component is butadiene rubber (BR), styrene-butadiene rubber (SBR) or isobutyl-isoprene rubber (IIR) and the chemically functionalized derivative of the first rubber component is a halogenated or alkoxylated derivative of BR, SBR or IIR or a derivative of BR, SBR or IIR provided with tertiary amine functionality.