Patent ID: 8444888

Claim:
A method for processing a crosslinkable elastomeric composition comprising at least one silica reinforcing filler and at least one sulfur-containing organosilane compound by using at least one processing apparatus having an internal metal surface, comprising the following steps: (a) pretreating at least one portion of the internal metal surface of said at least one processing apparatus with at least one sulfur-free organosilane compound having at least one hydrolizable group; (b) feeding said crosslinkable elastomeric composition comprising silica to said at least one processing apparatus; and (c) processing said crosslinkable elastomeric composition, wherein said at least one sulfur-free organosilane compound having at least one hydrolizable group is chosen from 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 1 H,1H,2H,2H-perfluorooctyltriethoxysilane, 1 H,1 H-perfluorcheptyltrimethoxysilane, 1 H,1 H-perfluoroheptyltriethoxysilane, perfluorohexyltrimethoxysilane, perfluorohexyltriethoxysilane, perfluoropentyltrimethoxysilane, perfluoropentyltriethoxysilane, perfluorobutyltrimethoxysilane, perfluorobutyltriethoxysilane, or mixtures thereof.