Abstract: The present invention relates to a process for adhering a preformed polymer liner to the surface of a pipe by induction heating the pipe. The liner may comprise a fluoropolymer. The liner may be applied either to the interior surface or the exterior surface of the pipe. The invention is particularly useful for adhering a liner to the interior surface of an oil well pipe. Thus with the induction heating process of present invention, it is possible to adhere a preformed liner to the interior surface of an oil well pipe which is capable of reducing-to-eliminating the deposition (buildup) of one or more of the asphaltenes, paraffin wax, and inorganic scale on the interior surface of the oil pipe. Preferably, this reduction is at least 40%, preferably at least 50% or more, for at least one of these materials as compared to the unlined oil pipe, and more preferably at least 40% for all of them.

Abstract: The present invention relates to a pipe, especially an oil pipe, having a lining comprising a fluoropolymer adhered to its interior surface and a lining formed on its exterior surface. The interior and/or exterior lining may comprise a primer layer comprising a fluoropolymer, and preferably a perfluoropolymer and an overcoat or a preformed film adhered to the primer layer. Either the overcoat or the preformed liner also comprises a fluoropolymer, and preferably a perfluoropolymer. The surface of the lining facing the flowable media, such as oil, may be a pure perfluoropolymer to provide a particularly good non-stick surface for the oil.

Abstract: The present invention relates to pipes that convey any flowable medium, such as chemicals, food and in particular, oil and gas, and more particularly to a system of pipes having different coatings or linings for the interior and exterior surfaces of such pipes, depending on the environment in which the pipes are used. The pipes may be coated with different materials, which may be of different thicknesses, with various configurations of coatings or linings. Such coating may be done on the interior and/or the exterior of the pipes.

Abstract: The present invention relates to a tool for use in an oil pipe having a fluoropolymer coating imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said tool, and impermeability to salt water so as to protect the tool pipe from corrosion. Such a tool is particularly useful in a pipe coated in a similar manner.

Abstract: The present invention relates to an oil pipe having a lining imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said oil pipe, and impermeability to salt water so as to protect the oil pipe from corrosion.

Abstract: The present invention provides an abrasion resistant overcoat composition comprising fluoropolymer and an effective amount of zeolite to increase the abrasion resistance of a film formed from the composition by at least 25% as compared to film formed from the fluoropolymer by itself. The invention also provides for a process for increasing the abrasion resistance of a fluoropolymer film coating on a fuser roll, by forming a film of fluoropolymer with an effective amount of zeolite sufficient to increase the film's abrasion resistance.

Abstract: The present invention provides an abrasion resistant composition comprising fluoropolymer and an effective amount of micropulp to increase the abrasion resistance of an article such as a film formed from the composition by at least 25% as compared to film formed from the fluoropolymer by itself. In an especially preferred embodiment, the composition also contains an effective amount of pigment to further increase the abrasion resistance of film formed from the composition as compared to film formed from the fluoropolymer by itself. The invention is especially useful for films formed on a fuser roll.

Abstract: The present invention relates to a vessel, in particular a pipe, especially an oil pipe, having a preformed film adhered onto the interior surface of the pipe, the interior surface of the preformed film reducing the deposition of at least one of asphaltenes, paraffin wax, and inorganic scale by at least 40% as compared to the interior surface of said oil pipe without said preformed film being present. In a preferred embodiment, the preformed film is adhered to the interior surface of the pipe with a primer layer with an optional barrier layer between the primer layer and the preformed film.

Abstract: The present invention relates to an oil pipe having a lining imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said oil pipe, and impermeabiity to salt water so as to protect the oil pipe from corrosion.

Abstract: A metered dose inhaler having part or all of its internal surfaces coated two or more times with a polymer comprising one or more fluorocarbon polymers, optionally in combination with one or more non-fluorocarbon polymers, containing an inhalation drug or a physiologically acceptable salt thereof, optionally an excipient and a fluorocarbon propellant. Also, a method for coating all or part of internal surfaces of a metered dose inhaler can comprising applying a first coat comprising a one or more fluorocarbon polymers to all or part of the internal the surfaces of a metered dose inhaler can. Subsequently, heating the first coat of fluorocarbon polymer and then applying a second coat comprising one or more fluorocarbon polymer on top of the first coat of fluorocarbon polymer. The two coats of fluorocarbon polymer are then heated to give a metered dose inhaler can that is more efficient in dispensing consistent doses of aerosol formulations.