Article of manufacture having composite layer affording abrasion resistant and release properties
AssigneeFerro Corporation
InventorGordon P. Becker
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Abstract
An article of manufacture, such as cookware, having a composite layer adhered thereto and a process for forming it are disclosed, characterized in that the layer is a porous ceramic body having a continuous, communicating pore structure, and a film-forming, polymerized organic resinous impregnant, such as a silicone compound, fills at least some of the pores. The impregnant is adapted to serve as a release agent. As a result, the article acquires a composite layer having at least the abrasion resistance of the ceramic and the release properties of the resinous impregnant.
Claims22
A substrate having a composite layer adhered thereto providing improved abrasion-resistant and release properties, said composite layer comprising a porous ceramic body having a continuous, communicating pore structure, and a film-forming, polymerized, organic resinous impregnant filling pores of said body selected from the group consisting of silicone polymers, polyphenyl sulfide, and fluorinated polyalkylenes, said impregnant being adapted to serve as a release agent, and said composite layer having at least the abrasion resistance of the ceramic and the release properties of the impregnant.
A process of coating a substrate with a composite layer providing improved abrasion-resistant and release properties, said process comprising adhering to the substrate a porous ceramic body having a continuous, communicating pore structure, impregnating pores of said body with a film-forming, polymerizable, organic resinous impregnant selected from the group consisting of silicone polymers, polyphenyl sulfide, and fluorinated polyalkylenes, and heating the assembly to polymerize the impregnant to a solid form, said impregnant being adapted to serve as a release agent, and said composite layer having at least the abrasion resistance of the ceramic and the release properties of the impregnant.
Dependencies are inferred from the claim text.