摘要:
A process for preparing a multiple layer coating on the surface of an organic polymeric substrate by means of atmospheric pressure glow discharge deposition, the steps of the process comprising depositing a layer (first layer) of a plasma polymerized, optically clear, organosilicon compound and thereafter in a second step depositing a substantially uniform layer (second layer) of a polymeric siloxane or silicon oxide compound onto the exposed surface of said first layer, wherein the multiple layer coating has a thickness of at least 2.0 µm and an abrasion resistance demonstrating a change of 20 delta haze units or less after 500 Tabor cycles, measured according to ASTM D1044, CS10F wheels, 500 g weight.
摘要:
A window envelope that includes a window patch formed from a low gloss polymer film based upon a rubber-modified vinyl aromatic polymer or a blend of a rubber- modified vinyl aromatic polymer and a vinyl aromatic polymer. The film may be a monolayer film or an external layer of a multilayer film. The film optionally includes an inorganic coating applied to either surface of the film where the film is a monolayer film or to an outermost surface of the film where the film is an external layer of a multilayer film. When an inorganic coating is applied to a film surface, the film need not include a rubber- modified vinyl aromatic polymer and may be based solely upon a vinyl aromatic polymer.
摘要:
A process for creating plasma polymerized deposition on a substrate using a glow discharge is described. The glow discharge is created between an electrode (16) and a counterelectrode (24). A mixture of a balance gas and a tetraalkylorthosilicate is flowed through the glow discharge onto a substrate (28) to deposit a coating onto the substrate as an optically clear coating or to create surface modification. The process, which is preferably carried out at or near atmospheric pressure, can be designed to create an optically clear powder-free or virtually powder free coating.
摘要:
A process for depositing a layer of a plasma polymerized organosiloxane, siloxane or silicon oxide onto the surface of an organic polymeric substrate by atmospheric pressure glow discharge deposition from a gaseous mixture comprising a silicon containing compound and an oxidant, characterized in that the oxidant comprises N2O.
摘要:
The present invention provides a process for preparing a multiple layer coating on the surface of an organic polymeric substrate by means of atmospheric pressure plasma deposition, the steps of the process comprising depositing a layer (first layer) of a plasma polymerized, optically clear, highly adherent, organosilicon compound onto the surface of the organic polymeric substrate by atmospheric pressure plasma deposition of a gaseous mixture comprising an organosilicon reagent compound and optionally an oxidant in a first step and thereafter in a second step depositing a substantially uniform layer (second layer) of a silicon oxide compound onto the exposed surface of said first layer by atmospheric pressure plasma deposition of a gaseous mixture comprising an oxidant and an organosilicon reagent compound, wherein the molar ratio of oxidant to organosilicon reagent compound in the gaseous mixture is greater in the second step than in the first step.