Protective coatings and coating compositions and methods for producing the same
AssigneeShellBond LLC
InventorNorman Filbert
Life of this patent
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Abstract
A protective coating on a metal surface comprises a particulate material produced by a method including heating an animal skeletal material to a temperature of at least 1000° C. for a time sufficient to convert at least part of the calcium carbonate in the skeletal material to calcium oxide and produce a calcined product; and then contacting at least part of the calcined product with water to produce the particulate material containing calcium hydrate.
Claims17
A protective coating on a metal surface comprising a particulate material produced by a method including:
- (a) heating an animal skeletal material to a temperature of at least 1000° C. to convert at least part of the calcium carbonate in the skeletal material to calcium oxide and produce a calcined product;
- and
- b) contacting at least part of said calcined product with water to produce the particulate material containing calcium hydrate.
A protective coating composition for metallic surfaces, the coating composition comprising a film-forming binder system having dispersed therein, as a corrosion-inhibiting agent and/or anti-fouling agent, anti-oxidant, a particulate material produced by a method including:
- (a) heating an animal skeletal material to a temperature of at least 1000° C. to convert at least part of the calcium carbonate in the skeletal material to calcium oxide and produce a calcined product;
- and
- (b) contacting at least part of said calcined product with water to produce the particulate material containing calcium hydrate.
A method of producing a protective coating on a metal surface, the method comprising:
- (a) heating an animal skeletal material to a temperature of at least 1000° C. to convert at least part of the calcium carbonate in the skeletal material to calcium oxide and produce a calcined product;
- (b) contacting at least part of said calcined product with water to produce the particulate material containing calcium hydrate;
- (c) dispersing said particulate material in a liquid carrier;
- and
- (d) applying said particulate material dispersed in said liquid carrier to a metal surface to produce a protective coating thereon.
Dependencies are inferred from the claim text.