Patent ID: 6894137

Claim:
A process for fusing toner residing on a substrate to the substrate, the process comprising: (I) applying, to the surface of a fuser member during the toner fusing process, a release agent composition comprising a polymer, the polymer comprising: (a) a polyorganosiloxane component, the polyorganosiloxane component comprising at least one polyorganosiloxane block; (b) an organomer component, the organomer component comprising at least one organomer block, the at least one organomer block comprising at least one member selected from the group consisting of perhalopolyether blocks, hydrocarbyl blocks comprising at least about 40 C atoms, and halocarbyl blocks; and (c) at least one polar linkage: (1) comprising a polar functionality having a polarity value of at least about 1.8; and (2) covalently bonding a polyorganosiloxane block of the polyorganosiloxane component, and an organomer block of the organomer component; and (II) contacting the toner with the fuser member surface bearing the release agent composition.