Article comprising first and second continuous polymeric layers having at least one polymeric layer exhibiting a random network of strands and connective regions disposed between the first and second continuous polymeric layers. In some embodiments, the article is a tape and polymeric multilayer film having a slip resistant surface.

Article comprising first and second continuous polymeric layers having at least one polymeric layer exhibiting a random network of strands and connective regions disposed between the first and second continuous polymeric layers. In some embodiments, the article is a tape and polymeric multilayer film having a slip resistant surface.

A multi-layer visor system for a surgical hood or garment is provided. The system includes a base film layer and one or more removable film layers that are coextruded at high temperature to form a sterile surface between each of the film layers should the surgeon elect to peel away a soiled or splattered removable film layer during the course of a surgical procedure so that an unobstructed view can be maintained. Thus, no separate sterilization step is required in order to sterilize the layers of the visor system. Each of the removable film layers can additionally include a tab having distinctive features in order to enable a wearer to easily distinguish between the tabs in order to make it easier for a wearer to know which tab to pull first to remove the outermost removable film layer. Further, because the tabs are located about the perimeter of the removable films, viewing is not obscured, yet the film layers are held securely in place until easily removed from the underlying removable film layer or base film layer.

A formulation for producing a polymeric material including high-density polyethylene, a chemical blowing agent, and other optional components is described.

A formulation for producing a polymeric material including high-density polyethylene, a chemical blowing agent, and other optional components is described.

A nonmetallic flexible pipe and a manufacturing method thereof. The nonmetallic flexible pipe comprises, from the inside to the outside, an inner liner, a pressure bearing layer, an isolation layer, a tensile layer, a functional layer, and a protective layer, wherein two adjacent layers are non-rigidly bonded. The inner liner layer is made from a thermoplastic polymer. The pressure bearing layer is made from a fiber-reinforced resin-based composite material. The isolation layer is made from a thermoplastic polymer. The tensile layer is made from a resin-reinforced fiber material. At least one of an optical fiber, a cable, a tracing ribbon, a pipe for conveying a heat transfer medium, a pressure sensor, and a temperature sensor is provided in the functional layer. The protective layer is made from a thermoplastic polymer.

A high-altitude balloon manufacturing apparatus. The apparatus includes one or more extruders and one or more extrusion dies in fluid communication with the extruders. Each extrusion die is shaped to define one or more connector channels and one or more layering channels. The connector channels define extrudate flow paths between the layering channels.

Expandable introducer systems are provided. An expandable introducer system can include an expandable introducer, an expander, a support member, and/or an exchange dilator. The expandable introducer may be configured to transition from an unexpanded configuration to an expanded configuration. For example, the expander may be displaced through the expandable introducer and transition the expandable introducer from the unexpanded configuration to the expanded configuration. The support member may be disposed within the expandable introducer that is in the expanded configuration to maintain the expandable introducer in the expanded configuration.

Expandable introducer systems are provided. An expandable introducer system can include an expandable introducer, an expander, a support member, and/or an exchange dilator. The expandable introducer may be configured to transition from an unexpanded configuration to an expanded configuration. For example, the expander may be displaced through the expandable introducer and transition the expandable introducer from the unexpanded configuration to the expanded configuration. The support member may be disposed within the expandable introducer that is in the expanded configuration to maintain the expandable introducer in the expanded configuration.

A coextruded ribbon. The coextruded ribbon includes a first layer and an opposed second layer. The first layer includes a first side optionally having an adhesive thereon. The first layer further includes an opposed second side having a plurality of protrusions extending therefrom. The second layer includes a repellant material contacting the plurality of protrusions.