Hydrophilic coating including DLC on substrate
AssigneeGuardian Industries Corp.
InventorVijayen S. Veerasamy
Life of this patent
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Abstract
A substrate is coated with a hydrophilic layer(s) or coating(s) that includes, for example, amorphous carbon in a form of diamond-like carbon (DLC). In certain embodiments, the DLC inclusive layer may be doped with at least one polar inducing dopant (e.g., Boron, Nitrogen, and/or any other suitable polar inducing dopant) in order to make the layer more polar and thus more hydrophilic so as to have a lower contact angle θ (e.g., no greater than about 10 degrees in certain embodiments, and more preferably no greater than about 8 degrees).
Claims29
A coated glass article comprising;
- a glass substrate;
- a hydrophilic layer including diamond-like carbon (DLC) with sp3 carbon-carbon bonds provided on said glass substrate;
- and
- wherein said hydrophilic layer includes at least one dopant comprising boron (B) therein so as to cause the layer to have an initial contact angle θ with a drop of water thereon of no greater than about 10 degrees.
A coated article comprising:
- a substrate;
- a hydrophilic coating or layer including diamond-like carbon (DLC) provided on said substrate;
- and
- wherein said hydrophilic coating or layer has an average hardness of at least about 10 GPa and has a contact angle θ with water of no greater than about 10 degrees.
A coated article comprising:
- a substrate;
- and
- a layer comprising amorphous diamond-like carbon on said substrate, said layer including from about 1-10% boron (B) as a dopant, and having a surface energy γC of at least about 26 mN/m.
A coated article comprising:
- a substrate;
- and
- a layer comprising diamond-like carbon on said substrate, said layer having a contact angle θ with a drop of water thereon of no greater than about 10 degrees.
Dependencies are inferred from the claim text.