Abstract: A flexible composite with integral flights is provided and methods for making the same. The composite is made from, for example, silicone rubber, urethane rubber, polytetrafluoroethylene or other polymer. The composites are useful for making articles of manufacture, in particular, conveyor belts for use in high temperature food processing. The conveyor belts are an improvement over the prior art in that they prevent slippage of the articles conveyed, may be manufactured at low cost and are easy to clean.

Abstract: A multilayer composite has a generally adhesion resistant, protective layer and an adjacent second polymeric film. The composition of the protective layer includes a fluoropolymer and the second polymeric film is a polymer free of fluoropolymer. The size of the protective layer facing the second polymeric layer is rendered bondable to the non-fluoropolymer of the second polymeric layer prior to assembling the layers in the composite. The composite is well adapted to being produced in a vertical coating tower. The tower utilizes a carrier web onto which the fluoropolymer layer and second polymeric layer are deposited from respective casting films. Mirror image composites can be formed simultaneously on opposite sides of the carrier web.

Abstract: A HVAC system of a motor vehicle includes a film having openings defined therein and moveable between open and closed positions. The film regulates airflow by opening and closing apertures defined in a housing of the HVAC system. The film is disposed in a film valve assembly containing first and second rollers that wind and unwind the film. The film includes a substrate that includes a fiber selected from the group of polyester-based fibers, glass-based fibers, and combinations thereof. An elastomeric layer is disposed on the substrate layer. The substrate also includes a silicone layer disposed on the elastomeric layer for minimizing noise created as the film moves between the open and closed positions.

Abstract: A flexible composite with integral flights is provided and methods for making the same. The composite is made from, for example, silicone rubber, urethane rubber, polytetrafluoroethylene or other polymer. The composites are useful for making conveyor belts for use in high temperature food processing, and particularly for contact toasters. The conveyor belts are an improvement over the prior art in that they prevent slippage of the articles conveyed, may be manufactured at low cost, and are relatively easy to clean.

Abstract: A flexible composite with integral flights is provided and methods for making the same. The composite is made from, for example, silicone rubber, urethane rubber, polytetrafluoroethylene or other polymer. The composites are useful for making articles of manufacture, in particular, conveyor belts for use in high temperature food processing. The conveyor belts are an improvement over the prior art in that they prevent slippage of the articles conveyed, may be manufactured at low cost and are easy to clean.

Abstract: A composite article that is a fabric of thermoplastic organic polymer impregnated with cured, heat resistant polymer. The composite article may define a dough form that is a substantially flat tray containing a depressed compartment to retain and form dough in a baking process.

Abstract: A double-faced PTFE-silicone rubber reinforced composite with curling tendency controlled is achieved by coating one side of a balanced PTFE/glass composite with liquid silicone rubber. Each face of the composite can perform independent functions in a single application, thereby optimizing performance.

Abstract: A novel composite comprises a substrate having a coating matrix including an initial layer of a perfluoropolymer and an overcoat comprising a fluoroelastomer, a fluoroplastic, a fluoroelastomer/fluoroplastic blend, or a combination thereof. The perfluoropolymer in the initial layer may be a perfluoroplastic, a perfluoroelastomer, or blends thereof. In a separate embodiment, the novel composite includes a substrate coated solely with one or more layers of perfluoroelastomer alone or as a blend with a perfluoroplastic. Where the substrate is not susceptible to hydrogen fluoride corrosion, the composite may include solely one or more layers of a blend of a fluoroelastomer and a hydrogen-containing perfluoroplastic. Cross-linking accelerators may be used to cross-link one or more of the resins contained in the coating layers. Each composite may be top-coated with a layer or layers of a fluoroplastic, fluoroelastomer, and/or a blend thereof.

Abstract: A fluoroplastic resin dispersion is modified by the addition of a fluoroelastomer latex to yield a fluid coating or casting composition for forming films. The fluoroplastic resin dispersion, preferably an aqueous dispersion of a perfluoroplastic, such as polytetrafluoroethylene (PTFE), is modified by blending with a fluoroelastomer composition, preferably a latex, such that the fluoroplastic comprises up to about 95%, preferably up to about 90%, by weight of the invention composition. The fluoroelastomer component comprises at least about 5% by weight of the blend. The fluid composition and film according to the invention may preferably comprise from about 10-95% by weight fluoroplastic and from about 5-90% fluoroelastomer.

Abstract: Dispersion polymerized PTFE itself, if provided in an unfused state, is sufficiently capable of acting as a pressure sensitive adhesive to facilitate the formation of an initial mechanical bond between components of a laminate such that it may be subsequently heat treated in a relatively short period of time to produce a well-bonded final laminate.

Abstract: A novel composite comprises a substrate having a coating matrix including an initial layer of a perfluoropolymer and an overcoat comprising a fluoroelastomer, a fluoroplastic, a fluoroelastomer/fluoroplastic blend, or a combination thereof. The perfluoropolymer in the initial layer may be a perfluoroplastic, a perfluoroelastomer, or blends thereof. In a separate embodiment, the novel composite includes a substrate coated solely with one or more layers of perfluoroelastomer alone or as a blend with a perfluoroplastic. Where the substrate is not susceptible to hydrogen fluoride corrosion, the composite may include solely one or more layers of a blend of a fluoroelastomer and a hydrogen-containing perfluoroplastic. Cross-linking accelerators may be used to cross-link one or more of the resins contained in the coating layers. Each composite may be top-coated with a layer or layers of a fluoroplastic, fluoroelastomer, and/or a blend thereof.

Abstract: Fluoropolymer containing coatings are applied to substrates, preferably textile substrates, to obtain composites which are flexible and not brittle, and which exhibit a low coefficient of friction, good wear resistance and excellent release properties. This invention comprises the technique of initially coating a flexible substrate, such as glass fabric or a metal mesh, with a fluoropolymer, which serves to prevent cracking upon flexing. The precoated substrate is thereafter coated with a blend of a hard polymer and a fluoropolymer which adheres well to the pre-coated intermediate substrate. Significantly, the composites of the invention are flexible, yet possess the wear resistance of the hard polymer component as well as the frictional and release characteristics of the fluoropolymer components.

Abstract: Fluoropolymer containing coatings are applied to substrates, preferably textile substrates, to obtain composites which are flexible and not brittle, and which exhibit a low coefficient of friction, good wear resistance and excellent release properties. This invention comprises the technique of initially coating a flexible substrate, such as glass fabric or a metal mesh, with a fluoropolymer, which serves to prevent cracking upon flexing. The precoated substrate is thereafter coated with a blend of a hard polymer and a fluoropolymer which adheres well to the pre-coated intermediate substrate. Significantly, the composites of the invention are flexible, yet possess the wear resistance of the hard polymer component as well as the frictional and release characteristics of the fluoropolymer components.

Abstract: A fluoroplastic resin dispersion is modified by the addition of a fluoroelastomer latex to yield a fluid coating or casting composition. The fluoroplastic resin dispersion, preferably an aqueous dispersion of a perfluoroplastic, such as polytetrafluoroethylene (PTFE), is modified by blending with a fluoroelastomer composition, preferably a latex, such that the fluoroplastic comprises up to about 95%, preferably up to about 90%, by weight of the invention composition. The fluoroelastomer component comprises at least about 5% by weight of the blend. The fluid compositions according to the invention may preferably comprise from about 10-95% by weight fluoroplastic and from about 5-95% fluoroelastomer.