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US 2021/0366629 A1Published application
Composition for corrosion prevention
AssigneeTesla Nanocoatings, Inc.
InventorsJorma Antero VIRTANEN, Todd HAWKINS
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Abstract
The composition described herein for the prevention of corrosion includes sacrificial metal particles more noble than a metal substrate to which the composition contacts, carbonaceous material that can form electrical contact between the sacrificial metal particles, and means for providing an anticorrosion coating material for the metal substrate. The composition can form a coating on a metal substrate surface.
Claims20
A corrosion prevention composition comprising:
- sacrificial metal particles, wherein the sacrificial metal particles comprise at least one metal of nickel, molybdenum, or cobalt, wherein the sacrificial metal particles are not passivated;
- a polymeric matrix, wherein the polymeric matrix comprises at least one amino hardened epoxy;
- and
- carbonaceous material that forms electrical contact between the sacrificial metal particles, wherein the composition is adapted to form a layer on top of a layer of iron (II) oxide on an associated metal substrate comprising iron and is adapted to prevent oxidation of the layer of iron (II) on the associated metal substrate from an iron (II) to an iron (III), and wherein the sacrificial metal particles have a higher reduction potential than the associated metal substrate;
- and
- a flowabie material.
3 more elements
A corrosion prevention composition comprising:
- sacrificial metal particles, the sacrificial metal particles comprising at least one metal of nickel and cobalt;
- carbonaceous material comprising multi-walled graphitic carbon that can form electrical contact between the sacrificial metal particles;
- a flowable material comprising epoxy functionalities;
- and
- an antioxidant comprising at least one antioxidant of hydrochinon, tannic acid, lignin, lignin fragments, polyunsaturated fats, esters of polyunsaturated fats, and pine oil, wherein the composition is adapted to form a layer on top of a layer of iron (II) oxide on an associated metal substrate comprising iron and the composition is adapted to prevent oxidation of the layer of iron (II) oxide on the associated metal substrate from an iron (II) to an iron (III), wherein the composition has no lithium salts.
2 more elements
A corrosion prevention composition comprising:
- sacrificial metal particles, wherein the sacrificial metal particles are molybdenum, wherein the sacrificial metal particles are not passivated;
- carbonaceous material that forms electrical contact between the sacrificial metal particles;
- a polymeric matrix, wherein the polymeric matrix comprises at least one amino hardened epoxy;
- and
- wherein the composition is adapted to form a layer on top of a layer of iron (II) oxide on an associated metal substrate comprising iron and the composition is adapted to prevent oxidation of the layer of iron (II) oxide on the associated metal substrate from an iron (II) to an iron (III), and wherein the sacrificial metal particles have a higher reduction potential than the associated metal substrate.
2 more elements
Dependencies are inferred from the claim text.