Abstract: A roller intended to be in contact with toner particles is provided with a cured resin layer having homogeneously dispersed carbon black aggregates and having a thickness of less than 200 ?m, whereby the carbon black aggregates have a weight average size lower than 30 ?m, a DPB absorption of more than 110 ml/100 g, a BET-surface area greater than 250 m2/g, and coated with an amino silane compound.
Abstract: The composition for treating a siliceous substrate comprises:
substantially water insoluble fluoro silane;
an organic solvent in an amount sufficient for solubilizing the fluoro silane, and
at least one ammonium and/or phosphonium compound, the weight ratio (ammonium and/or phosphonium compound/water insoluble fluoro silane) being greater than 0.005.
Abstract: Roller being intended to be in contact with toner particles, said roller being provided with a cured resin layer comprising carbon black aggregates and having a thickness of less than 200 &mgr;m,
Abstract: A process for coating at least a portion of a face of a siliceous substrate with a silicon containing layer, the process includes at least the following steps:
a treatment step, in which at least the portion of the face of the siliceous substrate is treated with a composition containing at least one biocide, and
at least the portion of the face of the siliceous substrate is reacted with a reactive composition for forming a silicon containing layer chemically bound to the siliceous substrate.
Abstract: Process for coating at least a portion of a face of a siliceous substrate with a silicon containing layer, said process comprising at least the following steps:
Abstract: A siliceous substrate having a face which is at least partly provided with a water-repellent layer having a thickness of no greater than 5000 Angstroms, said layer being a layer of at least one fluoro aliphatic silane compound having at least one silicon atom chemically bound to the siliceous substrate and chemically bound to the silicon atom of another fluoro silane compound of the layer.