Novel polyamide-metal laminates which have desirable hydrolysis resistance are provided. The laminates comprise (A) a metal, (B) a tie layer, and (C) a polyamide composition. The tie layer is formed from a composition containing (B1) a polymer containing a comonomer having at least two adjacent carboxylic acid groups and (B2) an amino-silane containing a primary amine and at least one hydroxyl group.

Novel polyamide-metal laminates which have desirable hydrolysis resistance are provided. The laminates comprise (A) a metal, (B) a tie layer, and (C) a polyamide composition. The tie layer is formed from a composition containing (B1) a polymer containing a comonomer having at least two adjacent carboxylic acid groups and (B2) an amino-silane containing a primary amine and at least one hydroxyl group.

A tube or a hose including a fluoroelastomer and a polytetrafluoroethylene, the tube or the hose being an extruded article. The polytetrafluoroethylene is dispersed in a state of single particles in the extruded article, or the polytetrafluoroethylene has a specific surface area of less than 8 m.sup.2/g. Also disclosed is an extruded laminate including a fluoroelastomer layer formed form the tube or hose and a polymer layer.

Embodiments are directed to systems and methods for two or more cured composite assemblies that are bonded together to form a tubular composite structure, wherein each of the cured composite assemblies do not have a tubular shape. The tubular composite structure may form a spar for an aerodynamic component, for example. The two or more cured composite assemblies may comprise carbon or fiberglass composite materials or a combination of materials. Each of the cured composite assemblies may further comprise axial edges that are configured to be bonded to another of the cured composite assemblies, wherein the axial edges have a sloped shape. An adhesive agent may be applied on the axial edges for bonding two cured composite assemblies. Alternatively, or additionally, one or more fasteners may be used to attach the axial edges of at least two cured composite assemblies.

Embodiments are directed to systems and methods for two or more cured composite assemblies that are bonded together to form a tubular composite structure, wherein each of the cured composite assemblies do not have a tubular shape. The tubular composite structure may form a spar for an aerodynamic component, for example. The two or more cured composite assemblies may comprise carbon or fiberglass composite materials or a combination of materials. Each of the cured composite assemblies may further comprise axial edges that are configured to be bonded to another of the cured composite assemblies, wherein the axial edges have a sloped shape. An adhesive agent may be applied on the axial edges for bonding two cured composite assemblies. Alternatively, or additionally, one or more fasteners may be used to attach the axial edges of at least two cured composite assemblies.

The present invention relates to a pipe suitable for conveying fluids in HVACR applications, which pipe comprises an inner tube delimiting an inner space or passageway for a fluid, an insulating cover and an anti-corrosion layer.

The present invention relates to a pipe suitable for conveying fluids in HVACR applications, which pipe comprises an inner tube delimiting an inner space or passageway for a fluid, an insulating cover and an anti-corrosion layer.

A cover for a cable harness including: (i) a first layer comprising a first color; (ii) a second layer layered adjacent to the first layer, the second layer comprising a second color that is different than the first color; and (iii) an adhesive layer adhered to the first layer, at least a portion of the adhesive is not covered by the second layer. The first color can black, while the second color is white. The second layer comprises fibers that can be substantially free of dye. At least one of the first layer and the second layer can be polyethylene terephthalate. The cover can cover a plurality of cables of a cable harness. If wear forms a hole through the first layer, the second color of the second layer is visible from an environment external to the covered cable harness through the hole through the first layer.

An ink supply tube includes: a first layer that is made of an unmodified ethylene-tetrafluoroethylene copolymer resin and is in contact with ink; a second layer that is made of a modified ethylene-tetrafluoroethylene copolymer resin and is formed on an outer periphery of the first layer; a third layer that is made of a polyamide resin or a basic functional group-modified polypropylene resin and is formed on an outer periphery of the second layer; a fourth layer that is made of an ethylene-vinyl alcohol copolymer resin having a gas barrier property and is formed on an outer periphery of the third layer; and a fifth layer that is made of an acid functional group-modified polypropylene resin and is formed on an outer periphery of the fourth layer.

An ink supply tube includes: a first layer that is made of an unmodified ethylene-tetrafluoroethylene copolymer resin and is in contact with ink; a second layer that is made of a modified ethylene-tetrafluoroethylene copolymer resin and is formed on an outer periphery of the first layer; a third layer that is made of a polyamide resin or a basic functional group-modified polypropylene resin and is formed on an outer periphery of the second layer; a fourth layer that is made of an ethylene-vinyl alcohol copolymer resin having a gas barrier property and is formed on an outer periphery of the third layer; and a fifth layer that is made of an acid functional group-modified polypropylene resin and is formed on an outer periphery of the fourth layer.