Pressure rolls, apparatuses useful in printing and methods of making pressure rolls
AssigneeXerox Corporation
InventorMartin Franklin Zess
Life of this patent
Estimating the term…
Abstract
Pressure rolls for apparatuses useful in printing, apparatuses useful in printing and methods of making pressure rolls are provided. An exemplary embodiment of a pressure roll for an apparatus useful in printing includes a first layer including silicone rubber, the first layer including a first outer surface, a first end face and an opposite second end face; a second layer including a polymer overlying the first layer, the second layer including a second outer surface, a third end face and an opposite fourth end face; and a sealing material bonded to and covering the first, second, third and fourth end faces. The sealing material includes a polymer that is impervious to, and chemically resistant to, a release agent comprising silicone oil.
Claims20
A pressure roll for an apparatus useful in printing, comprising:
- a first layer comprising silicone rubber, the first layer including a first outer surface, a first end face and an opposite second end face;
- a second layer comprising a polymer overlying the first layer, the second layer including a second outer surface, a third end face co-planar with the first end face and an opposite fourth end face co-planar with the second end face;
- and
- a sealing material bonded to and covering the first, second, third and fourth end faces, the sealing material comprising a polymer that is impervious to, and chemically resistant to, a release agent comprising silicone oil.
An apparatus useful in printing, comprising:
- a first roll including a first outer surface;
- and
- a second roll including:
- a first layer comprising silicone rubber overlying a metal core, the first layer including a first outer surface, a first end face and an opposite second end face;
- a second layer comprising a polymer overlying the first layer, the second layer including a second outer surface forming a nip with the first outer surface of the first roll, a third end face co-planar with the first end face and an opposite fourth end face co-planar with the second end face;
- and
- a polymeric sealing material bonded to and covering the first, second, third and fourth end faces, the sealing material comprising a polymer that is impervious to, and chemically resistant to, a release agent comprising silicone oil.
A method of making a pressure roll for an apparatus useful in printing, comprising:
- forming a first layer comprising silicone rubber, the first layer including a first outer surface, a first end face and an opposite second end face;
- wherein a second layer comprising a polymer overlies the first outer surface of the first layer, the second layer includes a second outer surface which forms the outer surface of the pressure roll, a third end face co-planar with the first end face and an opposite fourth end face co-planar with the second end face;
- and
- applying a polymeric sealing material to cover the first, second, third and fourth end faces, the sealing material comprising a polymer that is impervious to, and chemically resistant to, a release agent comprising silicone oil.
Dependencies are inferred from the claim text.