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US 5,183,710 AGranted
Hydrophobic inorganic materials and process for making same
AssigneeU-SUS Distributors, Inc.
InventorAnthony J. Gerbino
Life of this patent
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AssigneeU-SUS Distributors, Inc.
InventorAnthony J. Gerbino
Estimating the term…
A process for rendering an inorganic substrate material hydrophobic includes the step of attaching a coating of hydrophobic silica to the substrate. The hydrophobic silica is preferably mixed initially with the substrate material. At least one bonding agent selected from the group consisting of siloxanes and functionalized silanes, and preferably siloxanes, is then mixed with the hydrophobic silica and substrate material. A dispersion agent can be provided to more evenly distribute the siloxanes and/or functionalized silanes over the hydrophobic silica and substrate material. Heat can be applied after mixing to remove any liquid dispersion agent and to chemically bond the bonding agent to the hydrophobic silica and to the substrate material. Hydrophobic inorganic materials including hydrophobic silica bonded to a substrate by a siloxane or functionalized silane bonding agent.
A process for rendering inorganic substrate materials hydrophobic, comprising the step of applying a bonding agent comprising at least one siloxane to said substrate and to hydrophobic silica, said siloxane bonding agent bonding with said hydrophobic silica to form Si--O--Si bonds, and bonding with said substrate to form Substrate--O--Si bonds.
A hydrophobic inorganic material, comprising an inorganic substrate, a siloxane bonding agent chemically bonded to said substrate at least by Substrate--O--Si bonds, and a hydrophobic silica, said siloxane bonding agent being chemically bonded to said hydrophobic silica at least by Si--O--Si bonds.
A process for rendering inorganic substrate materials hydrophobic, comprising the step of applying a bonding agent comprising at least one functionalized silane with said substrate and a hydrophobic silica, said functionalized silane bonding agent chemically bonding with said hydrophobic silica to form Si--O--Si bonds, and bonding with said substrate to form Substrate--O--Si bonds.
A hydrophobic inorganic material, comprising a functionalized silane bonding agent chemically bonded to said substrate at least by Substrate--O--Si bonds, and a hydrophobic silica, said functionalized silane bonding agent being chemically bonded to said hydrophobic silica at least by Si--O--Si bonds.
Dependencies are inferred from the claim text.