Abrasion-resistant plastic articles
First Claim
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1. An article comprising a plastic substrate and a coating disposed thereon, wherein said coating is characterized by a gradual transition from a composition consisting essentially of an interfacial material closest to the surface of the substrate to a composition consisting essentially of an abrasion-resistant material on the outer surface of said coating;
- said interfacial material being selected from the group consisting of polymerization products of organosilicon, organometallic, acrylic and olefin materials, and said abrasion-resistant material being selected from the group consisting of silicon dioxide, silicon nitride, silicon oxynitride, silicon carbide, silicon carbonitride, boron oxide, boron nitride, aluminum oxide, aluminum nitride, titanium dioxide, tantalum oxide, iron oxide, germanium oxide, germanium carbide and mixtures thereof.
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Abstract
An abrasion-resistant article and method for making is disclosed. The article includes a plastic substrate and a gradational coating applied by plasma-enhanced chemical vapor deposition to the surface thereof.
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Citations
9 Claims
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1. An article comprising a plastic substrate and a coating disposed thereon, wherein said coating is characterized by a gradual transition from a composition consisting essentially of an interfacial material closest to the surface of the substrate to a composition consisting essentially of an abrasion-resistant material on the outer surface of said coating;
said interfacial material being selected from the group consisting of polymerization products of organosilicon, organometallic, acrylic and olefin materials, and said abrasion-resistant material being selected from the group consisting of silicon dioxide, silicon nitride, silicon oxynitride, silicon carbide, silicon carbonitride, boron oxide, boron nitride, aluminum oxide, aluminum nitride, titanium dioxide, tantalum oxide, iron oxide, germanium oxide, germanium carbide and mixtures thereof.
- 2. The article of claim 2 wherein the substrate is a polycarbonate material.
Specification