Abstract: A fluid-tight slide fastener including coated tapes equipped with teeth, opposite stops and a slider operable between the opposite stops to engage or disengage the teeth. The coated tapes include a core textile layer and a fluid-barrier coating made of a thermoplastic elastomer material (TPE), the teeth being made of a thermoplastic material. The textile material of the core layer of the coated tapes is chosen among polyester, polyamide and their blends or copolymers. The thermoplastic elastomer material of the coating is chosen between thermoplastic elastomer polyurethane (TPE-U) and thermoplastic elastomer polyester (TPE-E). The thermoplastic material of the teeth is chosen among PBT, ABS, polyamide and their blends or copolymers.

Abstract: A fluid-tight slide fastener (10) comprising tapes (12) with an inner textile layer (14) and a fluid barrier layer (16), teeth elements (21) and a slider (22), wherein said textile layer (14) is made with a spun yarn of cut fibers. Preferred materials are also disclosed for the textile layer, the fluid barrier layer and the teeth, including PE for textile layer, TPE-E or TPE-U for the fluid-barrier layer and PBT, ABS, polyamide (PA) and their blends or copolymers for the teeth. A process for making slide fasteners is also disclosed, wherein strips of a spun yarn textile material are coated by extrusion or lamination of a melted fluid-barrier material.

Abstract: The present invention regards a fluid tight slide fastener (10) of the type comprising a slider (15) slidably associated with opposite edges (12a) of two flanking strips (12) to provide for their closure, and an upper end stop (16) with which said slider (15) is removably engaged upon closure, characterised in that in said upper stop (16) and in said slider (15) respective means (19,21) and counter-means (46,47) are provided for and adapted to make, upon upper stop (16)—slider (15) engagement, a clearance-recovery taper fit, so-called clearance-recovery wedge. The present invention also regards an upper stop and a slider for a slide fastener of the aforesaid type.

Abstract: A description is given of a sealing slide fastener (10), comprising two tapes (1, 2) of elastic material with their edges (1b, 2b) facing each other, which are pressed against each other by the coupling of two sets of aligned teeth (3, 4) caused by the passage of a closing slider (8), in which at least the outer layers (1e, 2e) of the said two tapes (1, 2) and the said teeth (3, 4) are made from materials which can be welded together chemically.

Abstract: A fluidtight slide fastener comprising a pair of tapes comprising a textile material strip coated with a fluid barrier material layer and equipped with a set of aligned teeth, an opening stop and an opposite closing stop, a slider for engaging in a fluidtight way or disengaging said teeth respectively, wherein the fastener comprises a further fluid-tight coating formed on at least one short edge of the tapes.

Abstract: A fluidtight slide fastener comprising a pair of tapes both delimited by two opposite long edges and by two opposite short edges, each tape comprising a textile material strip coated with a fluid barrier material layer at least at the opposite faces thereof, the strip remaining uncoated at least one of said short edges of each tape, each tape being equipped with a set of aligned teeth on at least a portion of one of said long sides thereof, the aligned teeth of said sets facing each other and being associated with opposite opening and closing stops, and a slider slidable between said closing stop and said opening stop for engaging in a fluidtight way or disengaging said aligned teeth respectively, wherein the fastener further comprises a coating formed on each tape at said at least one of said uncoated short edges for covering the textile material strip in a fluidtight way at said at least one of said uncoated short edges.

Abstract: Fluid-tight slide fastener (10) comprising a pair of tapes (12), each tape (12) having a layered structure comprising an inner reinforcing textile material layer (14) enveloped in a fluid barrier layer (16) made of a thermoplastic elastomer material (TPE), each tape (12) exhibiting a row (20) of aligned teeth (21) made of a thermoplastic material on at least a portion of one of the long sides (13a) thereof, the rows (20) of aligned teeth (21) of said pair of tapes (12) facing each other and being associated to opposite stops (24,26), and a slider (22) slidable between said opposite stops (24,26) for engaging in a fluid-tight way or disengaging said aligned teeth (21) respectively, characterized in that said textile material for the inner reinforcing layer (14) is chosen among polyester (PE), preferably PET, polyamide (PA) and their blends or copolymers; said thermoplastic elastomer material (TPE) for the fluid barrier layer (16) is chosen between thermoplastic elastomer polyurethane (TPE-U) and thermoplastic