Organic based titanate primers to bond fluoro-containing compound to silicone rubber
AssigneeXerox Corporation
InventorsRobert N. Finsterwalder, Sandra L. Schmitt, James G. Russell, Jr.
Life of this patent
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Abstract
A primer composition of an organic titanate and an alkoxysilane achieves a strong bond between a silicone rubber and a fluoro-containing compound, thereby enabling a composite of these materials to have excellent adhesion. The composite is most useful as a fuser member in a copying device, the silicone rubber being upon an aluminum core. The primer composition preferably includes a solvent such as methyl isobutyl ketone that swells the silicone rubber, thereby permitting the primer composition to penetrate into the silicone rubber layer and further enhance the bond strength.
Claims20
A composite structure comprising a layer of silicone rubber that is bonded to an overlying layer containing at least one fluoro-containing compound selected from the group consisting of polyfluorocarbon resins and polyfluorocarbon elastomers, the bond effected via a primer composition on a surface of the layer of silicone rubber, wherein the primer composition is comprised of at least an organic titanate and an alkoxysilane.
A fuser member comprising a core overcoated with a first layer of silicone rubber that is bonded to an overlying layer containing at least one fluoro-containing compound selected from the group consisting of polyfluorocarbon resins and polyfluorocarbon elastomers, the bond effected via a primer composition on a surface of the layer of silicone rubber, wherein the primer composition is comprised of at least an organic titanate and an alkoxysilane.
A method of obtaining a bond between a layer of silicone rubber and an overlying layer containing at least one fluoro-containing compound selected from the group consisting of polyfluorocarbon resins and polyfluorocarbon elastomers, the method comprising:
- applying a primer composition comprised of at least an organic titanate and an alkoxysilane to at least a portion of the layer of silicone rubber to which the layer containing at least one fluoro-containing compound will be applied;
- fixing the primer composition to the layer of silicone rubber to obtain a primed portion,
- applying the layer containing at least one fluoro-containing compound to the primed portion to form a composite structure, and
- heating the composite structure.
Dependencies are inferred from the claim text.