A gasket includes a main body made of an elastic material, and a film laminated on the surface of the main body. The gasket has a film circumferential surface portion to be brought into contact with an inner peripheral surface of a syringe barrel, and an annular groove formed circumferentially of the film circumferential surface portion. The gasket further includes an annular member which is fixed in the annular groove and includes an annular projection projecting from the surface of the film.

A gasket (13) for use in a medical syringe is provided, which includes a main body (14) made of an elastic material, and a lamination film (15) provided on a surface of the main body (14). The gasket (13) has a circumferential surface portion (17) to be kept in contact with an inner peripheral surface of a syringe barrel (11) of the syringe. The gasket (13) has a groove (22) provided in the circumferential surface portion (17) thereof as extending circumferentially thereof. The groove (22) has a depth of not less than 0.8D (m), preferably not less than D (m), wherein D (m) is the thickness of a portion of the lamination film (15) present in the circumferential surface portion (17) of the gasket (13).

Provided are multi-beam meltblowing apparatuses having a ridged collecting surface, methods for making multilayer meltblown composites using such apparatuses, and multilayer meltblown composites made therefrom. Also provided are a multilayer composite comprising an elastic layer and at least one ridged layer and a method for making the multilayer composite.

Provided are multi-beam meltblowing apparatuses having a ridged collecting surface, methods for making multilayer meltblown composites using such apparatuses, and multilayer meltblown composites made therefrom. Also provided are a multilayer composite comprising an elastic layer and at least one ridged layer and a method for making the multilayer composite.

The present invention is a method for manufacturing inflatable articles, or bladders for inflatable articles, that is time-efficient, simple, inexpensive and permits the uninterrupted manufacture of numerous and even customized article or bladder configurations and sizes, without expensive configuration-specific, metal tooling. The method includes the steps of applying a barrier material to a side of a first film, providing a second film with the first film so that the barrier material is disposed between the first and second films, adhering the first film to the second film so that the films are sealed together in areas except where the barrier material has been applied to form at least one inflatable compartment and sealed peripheral edge, and cutting along the sealed peripheral edge to form an inflatable article or bladder for use in an article of manufacture. The barrier material may be a paint, ink, paper or surface treatment that effectively prevents the first film from adhering to the second. The inflatable article or bladder of the present invention may be used as or in athletic equipment, for example, including footwear.

The present invention is a method for manufacturing inflatable articles, or bladders for inflatable articles, that is time-efficient, simple, inexpensive and permits the uninterrupted manufacture of numerous and even customized article or bladder configurations and sizes, without expensive configuration-specific, metal tooling. The method includes the steps of applying a barrier material to a side of a first film, providing a second film with the first film so that the barrier material is disposed between the first and second films, adhering the first film to the second film so that the films are sealed together in areas except where the barrier material has been applied to form at least one inflatable compartment and sealed peripheral edge, and cutting along the sealed peripheral edge to form an inflatable article or bladder for use in an article of manufacture. The barrier material may be a paint, ink, paper or surface treatment that effectively prevents the first film from adhering to the second. The inflatable article or bladder of the present invention may be used as or in athletic equipment, for example, including footwear.

A technique of manufacturing an elastomeric container closure or plunger with embedded functional components to avoid thermal damage to the components is described. The technique includes molding a drug-contacting part from a first material at a first temperature and for a first length of time defining a first thermal exposure; after molding the drug-contacting part, inserting ancillary components into the drug-contacting part, where the ancillary components have an operational thermal budget less than the first thermal exposure; and overmolding the drug-contracting part and the ancillary components with a second material at a second temperature for a second length of time to form a non-drug-contacting part that mechanically connects the non-drug-contacting part and the drug-contacting part to form the elastomeric container closure and seals the ancillary components inside the elastomeric container closure. The overmolding defines a thermal exposure less than the operational thermal budget of the ancillary components.

A one-piece rubber boot shell is created by a process comprising the steps of disposing rubber pieces within a cavity of a molding machine, the molding machine having an upper mold, a lower mold, and a last suspended between the upper mold and the lower mold. The process includes closing the molding machine by moving at least one of the upper mold, the lower mold, and the last toward each other so that they are adjacent each other, heating the rubber pieces to flow within the cavity and around the last to form a one-piece rubber boot shell, and opening the molding machine by moving at least one of the upper mold, the lower mold, and the last away from each other so that they are spaced apart from each. The one-piece rubber boot shell is then removed from the last.

A strip of a thermoplastic elastomer to be wound spirally on a cylindrical drum for forming an inner liner for a tire having a shape close to a finished sectional shape is provided. The strip is formed of composite layers of (A) a first layer made of a styrene-isobutylene-styrene triblock copolymer and (B) a second layer containing at least one of a styrene-isoprene-styrene triblock copolymer and a styrene-isobutylene diblock copolymer. The strip further has a strip main body and ear portions arranged on opposite sides thereof. The strip main body has a thickness (T1) of 0.05 mm to 1.0 mm. The ear portions have a thickness (T2) thinner than the thickness (T1) of the strip main body and a width (W2) of 0.5 mm to 5.0 mm. This ribbon-shaped strip reduces unevenness of the surface of a sheet formed by the opposite ends of the strip when manufacturing an inner liner.

A technique of manufacturing an elastomeric container closure or plunger with embedded functional components to avoid thermal damage to the components is described. The technique includes molding a drug-contacting part from a first material at a first temperature and for a first length of time defining a first thermal exposure; after molding the drug-contacting part, inserting ancillary components into the drug-contacting part, where the ancillary components have an operational thermal budget less than the first thermal exposure; and overmolding the drug-contracting part and the ancillary components with a second material at a second temperature for a second length of time to form a non-drug-contacting part that mechanically connects the non-drug-contacting part and the drug-contacting part to form the elastomeric container closure and seals the ancillary components inside the elastomeric container closure. The overmolding defines a thermal exposure less than the operational thermal budget of the ancillary components.