Filtration membrane comprising polymeric nanofibers and/or microfibers attaching dendrimer component presenting reactive sites selective for chemicals to be filtered, and related nanofibers and microfibers, composite materials, compositions, methods and system.

A centrifuge plate is disclosed which is intended for casting housing ends of hollow fiber filter modules and can be rotated around a centrifuge axis. The centrifuge plate includes at least two bearing elements arranged diametrically with respect to the centrifuge axis and provided for supporting a housing of a hollow fiber filter module to be cast, wherein each bearing element is rotatably supported on the centrifuge plate around a bearing axle which is parallel to the centrifuge axis.

A hollow fiber membrane sheet-like object in which a plurality of hollow fiber membranes is aligned in parallel with each other and fixed to each other while both end faces of each of the hollow fiber membranes in a longitudinal direction are open, wherein at least one belt-like binding portion made of an elastic body having an elongation percentage (E) stipulated by JIS K6251 of 100% or more and extending in a direction perpendicular to the longitudinal direction is formed at each of both end portions of the hollow fiber membrane sheet-like object, and the plurality of hollow fiber membranes is fixed to each other.

A detonator positioning device for use with a wireless detonator in a perforating gun assembly includes a single mechanism for physical electrical connection, while the remaining electrical connections are made via electrically contactable components.

The present invention relates to a fuel cell membrane humidifier having an improved coupling force between a potting portion and an inner case so that the coupling force can be maintained even when a fuel cell is repeatedly driven and stopped, the fuel cell membrane humidifier according to an embodiment of the present invention comprising: a humidification module for humidifying, with the moisture in exhaust gas discharged from a fuel cell stack, the air supplied from the outside; and caps respectively coupled to both ends of the humidification module. The humidification module comprises at least one cartridge including an inner case, a plurality of hollow-fiber membranes arranged in the inner case, the potting portion fixing the ends of the plurality of hollow-fiber membranes, and a laser bonding surface which is formed between the inner case and the potting portion through a laser bonding.

A method of forming a degassing system includes the step of forming a bundle of hollow tube membrane members by wrapping hollow tube membrane members to form the bundle at a temperature above 100? F. (38? C.). Another method of forming a degassing system includes the step of the inserting bundle into an outer canister at a temperature above 100? F. (38? C.). A fuel supply system made by these methods is also disclosed.

A hollow fiber membrane bundle useful for manufacturing a wide variety of hollow fiber membrane modules having different flow configurations includes hollow fiber membranes arranged around a porous support tube, a cured resin tubesheet formed at first end of the bundle, and either a cured resin nub or a cured resin tubesheet formed at a second end of the bundle. The bore(s) of the hollow fiber membranes are open at a face of the tubesheet adjacent the first end of the bundle. The tubesheet has an annular structure that encapsulates the hollow fiber membranes and the porous support tube at the first end of the bundle but which does not completely block a bore of the porous support tube, wherein the collection tube has a plurality of orifices formed therein at least at positions adjacent the nub.

A hollow fiber membrane bundle useful for manufacturing a wide variety of hollow fiber membrane modules having different flow configurations includes hollow fiber membranes arranged around a porous support tube, a cured resin tubesheet formed at first end of the bundle, and either a cured resin nub or a cured resin tubesheet formed at a second end of the bundle. The bore(s) of the hollow fiber membranes are open at a face of the tubesheet adjacent the first end of the bundle. The tubesheet has an annular structure that encapsulates the hollow fiber membranes and the porous support tube at the first end of the bundle but which does not completely block a bore of the porous support tube, wherein the collection tube has a plurality of orifices formed therein at least at positions adjacent the nub.

The present disclosure relates to semipermeable membranes which are suitable for blood purification, e.g. by hemodialysis, which have an increased ability to remove larger molecules while at the same time effectively retaining albumin. The membranes are characterized by a molecular retention onset (MWRO) of between 9.0 kD and 14.5 kD and a molecular weight cut-off (MWCO) of between 55 kD and 130 kD as determined by dextran sieving curves and can be prepared by industrially feasible processes excluding a treatment with salt before drying. The invention therefore also relates to a process for the production of the membranes and to their use in medical applications.

A filter module (1) has a housing (2) formed from a plastic and a filter (3) made from a plastic is arranged in the housing (2). The housing (2) is bonded adhesively to the filter (3) by an adhesive (15) via a first bonding surface (7, 18) made from a first plastic and via a second bonding surface (14, 19, 21) made from a second plastic. The adhesive bonding of the first bonding surface (7, 18) and the second bonding surface (14, 19, 21) is accomplished via an intermediate piece (10, 20) with the bonding surfaces (14, 18, 21) made from a plastic that is identical to or different from the first plastic. At least one of the bonding surfaces (7, 18, 19, 14, 21) has been activated by plasma or corona pre-treatment prior to the adhesive bonding.