Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, where at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 10.sup.6 main-chain carbon atoms, and where the coating composition further contains an inorganic filler, a surfactant, and a liquid medium.

A method of reducing dispersion viscosity in a dispersion coating formulation is disclosed. The method comprises substituting a portion of the conventional PVDF in the formulation with a highly crystalline PVDF. The highly crystalline PVDF has a crystallinity 44% or greater (from X-ray diffraction). The highly crystalline PVDF imparts lower viscosity to the coating dispersion formulation.

A method of reducing dispersion viscosity in a dispersion coating formulation is disclosed. The method comprises substituting a portion of the conventional PVDF in the formulation with a highly crystalline PVDF. The highly crystalline PVDF has a crystallinity 44% or greater (from X-ray diffraction). The highly crystalline PVDF imparts lower viscosity to the coating dispersion formulation.

A method for depositing a protective coating onto a substrate, wherein the protective coating comprises (i) a moisture-barrier layer which is in contact with the substrate and which comprises a first sub-layer, optionally one or more intermediate sub-layers, and a final sub-layer, (ii) a mechanical-protective layer which is inorganic, and (iii) a gradient layer interposing the moisture-barrier layer and the mechanical-protective layer.

A method for depositing a protective coating onto a substrate, wherein the protective coating comprises (i) a moisture-barrier layer which is in contact with the substrate and which comprises a first sub-layer, optionally one or more intermediate sub-layers, and a final sub-layer, (ii) a mechanical-protective layer which is inorganic, and (iii) a gradient layer interposing the moisture-barrier layer and the mechanical-protective layer.

A method for depositing a protective coating onto a substrate, wherein the protective coating comprises (i) a moisture-barrier layer which is in contact with the substrate and which comprises a first sub-layer, optionally one or more intermediate sub-layers, and a final sub-layer, (ii) a mechanical-protective layer which is inorganic, and (iii) a gradient layer interposing the moisture-barrier layer and the mechanical-protective layer.

A method for depositing a protective coating onto a substrate, wherein the protective coating comprises (i) a moisture-barrier layer which is in contact with the substrate and which comprises a first sub-layer, optionally one or more intermediate sub-layers, and a final sub-layer, (ii) a mechanical-protective layer which is inorganic, and (iii) a gradient layer interposing the moisture-barrier layer and the mechanical-protective layer.

A coating for a medical device or appliance may include a fluoropolymer and a polyimide. Such coatings may provide a lubricious exterior surface that facilitates insertion or displacement of a medical device in a body lumen. Some coatings that include a fluoropolymer and a polyimide may, among other functions and characteristics, provide increased strength and/or durability relative to some other coatings.

A coating for a medical device or appliance may include a fluoropolymer and a polyimide. Such coatings may provide a lubricious exterior surface that facilitates insertion or displacement of a medical device in a body lumen. Some coatings that include a fluoropolymer and a polyimide may, among other functions and characteristics, provide increased strength and/or durability relative to some other coatings.

This invention is related to a polymer thick film (PTF) paste composition comprising a conductive powder, an elastomer blend consisting of two or more elastomers at least one of which is a peroxide curable fluoroelastomer, and a solvent blend consisting of at least one solvent in which each of the elastomers of the elastomer blend is individually soluble and at least one solvent in which at least one of the elastomers of the elastomer blend is not individually soluble. The PTF paste composition can be used to form a printed conductor and to form an electrically conductive adhesive on various articles.