摘要:
A winder liner for unvulcanized rubber material comprising a first woven layer, a second woven layer, and a polymer layer. The first and second woven layers each contain a plurality of warp tape elements in a warp direction interwoven with a plurality of weft tape elements in a weft direction and a plurality of interstices between the warp and weft tape elements. The polymer layer is disposed on the inner surfaces of the first woven layer and the second woven layer and in the interstices of the first woven layer and the second woven layer. The polymer layer contains a first polymer comprising a co-polymer having at least 50% α-olefin units and is characterized by a number-average molecular weight of about 7,000 to 500,000 g/mol, and a viscosity of between about 2,500 and 150,000 cP measured at 170° C.
摘要:
A method of consolidating thermoplastic fibrous layers by providing a plurality of fibers having a core with an exterior surface portion comprising polypropylene and a first layer disposed on at least a portion of the core containing at least 70% alpha-olefin units which is formed into a first fibrous layer. A second fibrous layer is applied to the first fibrous layer which second layer contains a second polymer being a co-polymer having at least 50% alpha-olefin units which is characterized by a number-average molecular weight of about 7,000 to 50,000 g/mol, a viscosity of between about 2,500 and 150,000 cP measured at 170° C. and a melting temperature lower than the melting temperature of the exterior surface of the core. Heat and optionally pressure are applied to the assembly to consolidate the layers.
摘要:
The present invention relates generally to a printed loop fabric with improved graphic visibility and clarity which may be used as the female portion of a mechanical closure system. The loop fabric is generally comprised of a knit fabric, and more specifically, of a warp knit, weft inserted fabric. One method of creating the printed loop fabric includes coating the backside of the loop fabric with a thermoplastic material and then printing the face side of the coated fabric. Alternatively, the printed loop fabric may be achieved by applying a thermoplastic material to the backside of the loop fabric and printing on the thermoplastic material. The printed loop fabric may also be produced by applying a thermoplastic material to the backside of a low loop fabric and laminating a pre-printed film to the thermoplastic material. The fabric can be made without sacrificing the fabric's hook to loop engagement strength.
摘要:
The invention relates to an impact resistant component comprising at least two composite sheets fused together, each composite sheet comprising an adhesive layer fused between two unidirectional sheets, wherein each unidirectional sheet comprises a plurality of monoaxially drawn fibers arranged substantially parallel to one another along a common fiber direction, the fibers comprising a base layer of a strain oriented polymer disposed between surface layer(s) of a heat fusible polymer, wherein the surface layer(s) are characterized by a melting temperature below that of the base layer to permit fusion bonding upon application of heat, and wherein the adhesive layer has a melting temperature below that of the base layer of the unidirectional sheet.
摘要:
The present invention relates to a process for producing a knitted textile material that, when transfer or film-coated, is suitable for use as an artificial leather substrate. The inventive procedure involves (a) producing an elastomer composition of at least four ingredients (an anionically-stabilized waterborne polymer dispersion, an acid-generating chemical, a cloud-point surfactant, and a foam-stabilizing surfactant); (b) incorporating sufficient gas into the liquid mixture to generate a spreadable foam; (c) applying the foam onto a porous knitted textile substrate; (d) heating said foamed fabric until the elastomer coagulates over the fabric substrate; and (e) drying the resultant composite without destroying the coagulated structure. The resultant composite obtains a pliability, compressibility, and drape that is similar to that of leather and a surface that is suitable for transfer or film-coating to produce artificial leather. The composite may be utilized as upholstery fabric in furniture or in automobiles, apparel, and the like.
摘要:
A wearable container containing a composite which has an alternating pattern containing groupings of woven fabric and groupings of biaxially oriented thermoplastic films. The composite has a thickness of less than about 5 mm. Each grouping of woven fabric contains at least one woven fabric layer, each woven fabric layer containing tape elements having a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. Each grouping of biaxially oriented thermoplastic films contain at least one biaxially oriented thermoplastic film which has a core layer of thermoplastic disposed between covering layers of a thermoplastic able to bond to polypropylene.
摘要:
An energy absorbing panel containing a pair of generally parallel spaced apart rigid end plates having a stiffness of at least about 200 N-m and a plurality of fabric layers extending between the rigid end plates oriented in a z-axis direction defined as being perpendicular to the rigid end plates. Each fabric layer contains a plurality of monoaxially drawn, thermoplastic fibers. The plurality of fabric layers are fused together forming a bonded structure. Methods of making the energy absorbing panel are also disclosed.
摘要:
A method of consolidating thermoplastic fibrous layers. The method begins with providing a plurality of fibers, where the fibers have a core with an exterior surface portion comprising polypropylene and a first layer disposed on at least a portion of the core. The first layer contains a first polymer, where the first polymer contains at least 70% α-olefin units and is characterized by a melting temperature less than the melting temperature of the exterior surface of the core. These fibers are formed into a fibrous layer. Next, a second layer is applied to the fibrous layer such that the second layer covers at least a portion of the first layers of the fibers. The second layer contains a second polymer being a co-polymer having at least 50% α-olefin units which is characterized by a number-average molecular weight of about 7,000 g/mol to 50,000 g/mol, a viscosity of between about 2,500 and 150,000 cP measured at 170° C., and a melting temperature lower than the melting temperature of the exterior surface of the core. The viscosity of the second polymer is less than a tenth of the viscosity of the first polymer measured at 170° C. Next, heat and optionally pressure are applied to the fibrous layer causing at least a portion of the second layers of the fibers in each fibrous layer to fuse to other first or second layers of the fibers within the same fibrous layer, at least a portion of the second layers of the fibers of each fibrous layer fuse with at least a portion of the first or second layers of the fibers in an adjacent fibrous layer, and at least a portion of the interstices to be filled with a blend of the first and second polymers, where the blend filling the interstices comprises at least 80% wt the second polymer.
摘要:
The invention relates to an impact resistant component comprising at least two composite sheets fused together, each composite sheet comprising an adhesive layer fused between two unidirectional sheets, wherein each unidirectional sheet comprises a plurality of monoaxially drawn fibers arranged substantially parallel to one another along a common fiber direction, the fibers comprising a base layer of a strain oriented polymer disposed between surface layer(s) of a heat fusible polymer, wherein the surface layer(s) are characterized by a melting temperature below that of the base layer to permit fusion bonding upon application of heat, and wherein the adhesive layer has a melting temperature below that of the base layer of the unidirectional sheet.
摘要:
A flexible knife resistant composite incorporating a stack of at least five knife resistant textile layers, where each knife resistant textile layer comprises monoaxially drawn tape elements. The tape elements contain a base layer strain oriented olefin polymer with at least one covering layer of a heat fusible olefin polymer on the base layer and the covering layer is characterized by a softening temperature below that of the base layer. The tape elements within each layer are consolidated to one another by the covering layer and the tape elements of one layer are not consolidated to the tape elements of the adjacent layers.