A compressed gas container is disclosed. The compressed gas container has a single one-piece casing surrounding a storage volume and includes a matrix material and reinforcing fibers. The composition of the matrix material between the region of the single one-piece casing facing the storage volume and the region of the single one-piece casing facing the surroundings of the single one-piece casing changes at least once. A method for manufacturing a compressed gas container is also disclosed.

The invention relates to a method for adapting at least one winding parameter of a winding device during winding of a film web on a winding core, having the following steps:—conveying of the film web along a measuring path between a first driven roll and a second driven roll—increasing of the web tension of the film web between the first roll and the second roll—continuous detecting of the drive parameters of the first roll and of the second roll at least in the form of the torque and the circumferential speed,—determining of a stress-strain diagram from the detected drive parameters—adapting of at least one winding parameter of the winding device on the basis of the determined stress-strain diagram in order to achieve a defined elongation of the film web during winding on the winding core.

A technique for manufacturing a millable bridge plug for plugging of a wellbore during, for example, a fracturing operation. A bridge plug is constructed with an obstructed internal passage. The obstructed internal passage is formed by winding a composite material about a wrapping mandrel having at least one cylindrical part and a solid part coupled thereto. The cylindrical part is removed after a curing process leaving a mandrel with a plugged internal passageway upon which a seal member combined with a plurality of slips for engaging a surrounding wall, e.g. a surrounding wellbore wall, may be coupled.

A method for manufacturing an imprint mold which can prevent accumulation of the transferring resin onto the transferring roll is provided. A method for manufacturing an imprint mold, including: a resin coating step to coat a photo-curing resin composition or a thermosetting resin composition onto a pattern transferring mold having a fine concave-convex pattern; and a transferring step to transfer the resin composition throughout the entire circumference of a cylindrical transferring roll and cure the resin composition so that a reverse pattern of the concave-convex pattern is formed throughout the entire circumference of the cylindrical transferring roll, is provided.

A thermoset composite (10) and method for producing the same is provided. The method includes: providing at least one surface veil layer (12) that includes a fibrous layer saturated with a water based binder, and one or more composite constituent layers (11); applying an amount of thermoset resin to the composite constituent layers; arranging the surface veil layer and the composite constituent layers in a stack; and producing the thermoset composite by pulling the composite constituent layers and the surface veil layer through a forming die.

A thermoset composite (10) and method for producing the same is provided. The method includes: providing at least one surface veil layer (12) that includes a fibrous layer saturated with a water based binder, and one or more composite constituent layers (11); applying an amount of thermoset resin to the composite constituent layers; arranging the surface veil layer and the composite constituent layers in a stack; and producing the thermoset composite by pulling the composite constituent layers and the surface veil layer through a forming die.

An occlusive device, occlusive device delivery system, method of using, and method of delivering an occlusive device, and method of making an occlusive device to treat various intravascular conditions is described.

A system is provided for producing components of composite material, and especially elongate or continuous components of fiber-reinforced polymer. The system comprises a winding mechanism for winding an elongate sheet of composite material about a winding axis that is at an angle to a perpendicular to a longitudinal axis of the elongate sheet so as to form a helical coil of wound sheet a mechanism is provided for drawing or conveying the helical coil of wound sheet along a process path, wherein the process path is preferably substantially parallel to the winding axis. A shaping mechanism forms or shapes the coil of wound sheet as it is drawn or conveyed along the process path. A corresponding method of producing a composite component is provided.

Disclosed herein is easy and efficient production of a light and strong resin tube. A resin sheet is molded into a tubular form having a gap, and at least the gap portion is sealed with resin to produce a resin tube. This enables easy and efficient production of a light and strong resin tube.

Polymeric composite stents reinforced with fibers for implantation into a bodily lumen are disclosed.