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US 8,940,396 B1Granted
Graphene coating for glass containers
OwnerPramod K. Sharmainventor
Life of this patent
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Abstract
A glass container and a process for forming a graphene-containing coating on an exterior surface of the glass container to increase the strength of the glass container. A liquid coating composition that includes a physical mixture of a graphene material and a siloxane polymer is applied to the exterior surface of the glass container to form a precursor coating thereon. The glass container and the precursor coating are then cured to form a composite thin film of silica (SiO2) and graphene on the exterior surface of the glass container.
Claims17
A process for forming a graphene coating on a glass container that includes:
- (a) applying a graphene coating composition in liquid phase to an exterior surface of the glass container to form a precursor coating thereon, wherein the graphene coating composition includes a physical mixture of a graphene material and a siloxane polymer, but does not include a non-silane organic monomer or polymer;
- and
- (b) curing the precursor coating to form a composite thin film of silica and graphene on the exterior surface of the glass container.
A glass container that includes:
- a glass substrate that defines the shape of said container and provides said container with a closed base at an axial end of said container, a body extending axially from said base and being circumferentially closed, and an open mouth at another axial end of said glass container opposite said base;
- and
- a graphene coating formed on an exterior surface of said glass substrate, wherein the graphene coating is a composite that includes a dispersed phase of graphene and a matrix phase of silica (SiO2) and is bonded to the exterior surface of the glass container through a plurality of siloxane bonds.
Dependencies are inferred from the claim text.