Hydrophobic surfaces on injection molded or shaped articles
AssigneeRoss Technology Corporation
InventorsVinod K. SIKKA, Andrew K. JONES
Life of this patent
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Abstract
This disclosure describes the preparation of durable superhydrophobic and superoleophobic surfaces by forming or molding superhydrophobic particles into plastics, metals, and other materials. The molding and forming process can also impart a texture or pattern into the formed or molded surface as desired to increase the durability of superhydrophobic and/or superoleophobic effect.
Claims25
A method of preparing hydrophobic (HP)/superhydrophobic (SH) and/or oleophobic (OP) surfaces on all or part of a molded object comprising:
- a) applying a coating composition comprising second-particles and optionally comprising first-particles to all or part of the surface of a mold that will shape some or all of the object, thereby forming a coated mold surface;
- and
- b) introducing a material to be molded into the mold in a flowable state, thereby contacting at least a portion of said material with said coated mold surface;
- wherein said second particles comprise an oxide of a metal or metalloid oxide, and said second particles are functionalized with one or more independently silanes of formula I or siloxanes.
A method of preparing hydrophobic (HP)/superhydrophobic (SH) and oleophobic (OP), areas on all or part of the surface of pressed, rolled or stamped objects comprising:
- a) applying a coating composition comprising second-particles and optionally comprising first-particles to all or part of the surface of either:
- (i) the pressing, rolling or stamping surface that will contact the material to be formed into all or part of said object, or
- (ii) the surface of the material to be pressed, rolled or stamped into all or part of said object;
- and
- b) pressing, rolling or stamping the material to form all or part of said object;
- wherein said second particles comprise an oxide of a metal or metalloid oxide, and said second particles are functionalized with one or more independently silanes of formula I or siloxanes.
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Dependencies are inferred from the claim text.