Abstract: A method of making an absorbent structure having a three-dimensional topography includes placing at least a portion of the absorbent structure between opposed mold surfaces. At least one of the mold surfaces has a three-dimensional topography. The three-dimensional topography of the mold surface is imparted onto the absorbent structure so that the absorbent structure has a three-dimensional topography corresponding to the three-dimensional topography of the mold surface.

Abstract: The present invention provides a separator including a separator substrate composed of a polylactic acid film or sheet having tear strength so as not to break or tear during production or processing of the separator. The separator is a separator including a separator substrate and a removable pressure-sensitive adhesive layer on at least one surface of the separator substrate, wherein the separator substrate is composed of a polylactic acid film or sheet comprising polylactic acid (A) wherein the tear strength of the film or sheet is not less than 100 N/mm when the film or sheet is torn at least in a flow direction (MD), a rate of dimensional change due to heating is not more than ±3% in the flow direction (MD) and a transverse direction (TD), and a rate of dimensional change due to loaded heating is not more than ±3% in the flow direction (MD).

Abstract: In an apparatus for manufacturing a microporous plastic film roll by conveying a microporous plastic film by conveying rollers and then winding the microporous plastic film in a roll shape while being brought close to a near roller or being brought into contact with a touch roller, a part of the touch roller to be in contact with the plastic film has a Vickers hardness of 100 to 2,000, and the microporous plastic film is conveyed so that a side of the microporous plastic film opposite the side being in contact with the conveying rollers is in a noncontact state in a range being in contact with the conveying rollers.

Abstract: A process for devulcanizing fluoroelastomers having a fluorine content between 62% and 74% by weight vulcanized by ionic systems, preferably selected from bisphenol A and bisphenol AF, i.e. 2,2-bis(4-hydroxyphenyl)hexafluoropropane, the process including a step of heating the vulcanized fluoroelastomers in the presence of a hydrolysis composition having one or more chemical selected from water, water soluble alcohols, water soluble glycols and mixtures thereof, at a temperature from 350° C. to 430° C. Fluoroelastomers obtainable by this process and their use for the preparation of compounds and vulcanized compositions are also described.

Abstract: A method for producing a thermally conductive sheet includes the steps of preparing a material component containing boron nitride particles in a plate shape and a polymer matrix, forming a long-length sheet from the material component with a calender, and pressing the long-length sheet.

Abstract: Methods of stretching thermoplastic films in the machine direction include elongating the films in the machine direction without significantly reducing the films' machine-direction tear resistance. In one or more implementations, methods of stretching thermoplastic films include reducing the gauge of the films while substantially maintaining the films' machine-direction tear resistance. The methods can involve uniformly cold stretching the films by stretching the films to a draw of about one hundred and eighty percent, or less, of the films' original length.

Abstract: A nonwoven fabric having improved air permeability and manufacturing method thereof are presented. The nonwoven fabric has improved air permeability and is formed with long fiber nonwoven fabric of single or multi layer, wherein the long fiber nonwoven fabric is produced by spinning polytrimethylene terephthalate having viscosity of 0.8 to 1.2 and polyethylene terephthalate having viscosity of 0.6 to 0.8 to sheath/core shape with using each spinneret pack which can spin filaments having different denier from each other and arranged in parallel with each other, and then heat pressing with free-embossing or embossing pattern to bind the filaments. The nonwoven fabric has excellent air permeability, softness and resistance, which are required for nonwoven fabric sheets used for various purposes as well as their economical production.

Abstract: A method of making a sheet of building material, useful for roofing or siding applications, and the sheet material made by such method. A mixture of a thermoplastic resin and mineral filler is prepared, the resin comprising about 10% to 40% by weight of the mixture and the filler comprising about 60% to 90% by weight. The mixture is mixed at a temperature above the melting point of the resin and is formed into a sheet at such temperature. The sheet is allowed to cool until the surface is at a temperature below the midpoint of the melting range of the thermoplastic resin, e.g. in the range of 210 to 220 degrees F. (99 to 104 degrees C.), for polyethylene, at which point it is strained by passing it through calendering rollers. The sheet material made by this process, having a high concentration of mineral filler, is fire resistant, durable, ductile, of moderate weight and resistant to weathering. It can be produced using relatively inexpensive manufacturing equipment.

Abstract: Objects of the invention are to obtain ethylene copolymers which have excellent rubber elasticity even without being crosslinked and maintain sufficient shaping processability even when filled with significantly large amounts of additives, and to provide methods for producing with good productivity films or sheets having flexibility and high stretchability. The invention is directed to an ethylene copolymer (X) including structural units derived from a component [A], a component [B] and a component [C] which are ethylene [A], an ?-olefin of 3 to 20 carbon atoms [B] and a polyene and/or a cyclic olefin [C]. In the ethylene copolymer, (1) the content of structural units derived from the ethylene [A] is in the range of 50 to 90 mol % in 100 mol % of all the structural units in the copolymer (X); (2) the content of structural units derived from at least one polyene and/or the cyclic olefin [C] is in the range of 1.0 to 5.

Abstract: Single, continuous PTFE layers having lateral zones of varied characteristics are described. Some of the lateral zone embodiments may include PTFE material having little or no nodal and fibril microstructure. Methods of manufacturing PTFE layers allow for controllable permeability and porosity of the layers, in addition to other characteristics. The characteristics may vary from one lateral zone of a PTFE layer to a second lateral zone of a PTFE layer. In some embodiments, the PTFE layers may act as a barrier layer in an endovascular graft or other medical device.

Abstract: A process for preparing a bio-degradable PVC based pharmaceutical grade thermo-formable film. The film is stable in aerobic conditions and is bio-degradable under anaerobic conditions. The bio-degradable PVC based pharmaceutical grade film has application in the blister packing of pharmaceutical formulations.

Abstract: Described herein are a wood plastic composite including an oleaginous microbial biomass, a thermoplastic composite including a heterotrophically cultivated microalgal biomass, and related articles and methods.

Abstract: An apparatus for corrugating filter media includes upstream and downstream rollers. The upstream roller has an exterior surface including a corrugation pattern defining a plurality of circumferential channels. A heating source heats the filter media so that the filter media is within its elastic temperature range when the filter media engages the upstream roller. A motor drives rotation of the upstream and downstream rollers. A controller controls the motor so that the downstream roller rotates at a rotational speed greater than the upstream roller to impart tension to the filter media at the upstream roller. The heated filter media at least partially enters the channels of the corrugating pattern on the upstream roller to form corrugations on the filter media. A method of forming corrugations on filter media may be performed using the apparatus.

Abstract: The invention relates to a process for the stretching of a starting film web of thermoplastic polymer material, which comprises at least one low-melting polymer component and at least one high-melting polymer component, the process comprising at least the following steps: heating of the starting film web to an at least partly molten state in which the at least one low-melting polymer component exists in a molten liquid state and the at least one high-melting polymer component does not exist in the molten liquid state, by at least one heating roller and cooling down by passing the partly molten film web through a cooled roller nip, the film being stretched between the at least one heating roller and the cooled roller nip. The films produced may be laminated together with a non-woven fabric.

Abstract: The invention relates to a molding mass made from vinyl chloride polymer or polyvinylchloride at 5 to 94 wt. % and a K value of 50 to 90 additives at 2 to 25 wt. % and a polymer, whereby the weight percentages relate to the total weight of the molding mass. The polymer is a semi-crystalline or amorphous polyester. The film is produced from the molding mass by plastifying and fusing the same and calendering or extruding the same to give a film with a thickness of 100 microns to 1 mm. By means of subsequent in-line or off-line method steps, the film, for example, by means of drawing with a drawing degree of 1.3 to 7, can be further processed to give a thin high-shrinkage film.

Abstract: Methods for forming discrete deformations in web materials are disclosed. In some embodiments, the method involves feeding a web into an apparatus having nips that are formed between intermeshing rolls. The apparatus may be in the form of nested or other arrangements of multiple rolls, in which the web is maintained in substantial contact with at least one of the rolls throughout the process, and at least two of the rolls define two or more nips thereon with other rolls. In some embodiments, rolls can be used to expose a different side of the web for a subsequent deformation step. In these or other embodiments, the rolls can be used to transfer the web between rolls in such a manner that it may offset the rolls and/or web so that subsequent deformations are formed at a different cross-machine direction location than prior deformations.

Abstract: A process for manufacturing a film of ultra-high molecular weight polyolefin comprising: (a) subjecting a starting ultra-high molecular weight polyolefin with a weight average molecular weight of at least 500 000 gram/mole in powder form to a compacting step using an isobaric press; and (b) subjecting the compacted polyolefin to a rolling step and at least one stretching step under such conditions that at no point during the processing of the polymer its temperature is raised to a value above its melting point. The process allows for the manufacture of ultra-high molecular weight polyolefin films of high quality.

Abstract: A powder molding device, including: a pre-molding unit (6) for molding a sheet-form powder (14) having a first density higher than a density of the powder and not having fluidity by compressing a powder; and a molding roll (8) for molding a sheet-form molded product (16) having a second density higher than the first density by compressing the sheet-form powder.

Abstract: In the tube manufacturing industry, five general methodologies for manufacturing tubes are known at this time. The first is under an extrusion of molten metal by means of a press. The second is by means of a rotary lamination system known as “Piercing” or “Mannesmann”. The third is the welded pre-tube that is obtained from a laminated strip. The fourth, known as the “Cast & Roll” system, whereby a pre-tube, obtained directly from the melting, is laminated by a triple roller system. Finally, the innovative manner whereby a continuous vertical casting manufactures pre-tubes continuously, directly from the melt. The four first systems are widely used in the industry to manufacture what is known as a “pre-tube” that usually has a diameter of 60 mm or higher, which we shall name “old pre-tube”. Different processes are applied to that old pre-tube to bring it to smaller diameters and thicknesses finally required by the market.

Abstract: The instant invention provides a polymer composition suitable for clear graphic cling film applications, method of producing the same, articles made therefrom, and methods for making such articles. The polymer composition suitable for clear graphic cling film applications, according to the present invention, comprises: (a) a polyolefin composition selected from the group consisting of a propylene-based composition, and an ethylene-based composition, wherein the propylene-based composition has an melt flow rate in the range of from 2 to 8 g/10 minutes, a dynamic mechanical spectroscopy (DMS) value in the range of from 3700 to 10100 Pascal-seconds at 0.1 radian per second, and from 650 to 1200 Pascal-seconds at 100 radian per second measured at 190° C., and having a crystallinity in the range of from at least 4 percent by weight to 11 percent by weight, and a heat of fusion of in the range of from 6 to 19 Joules/gram, and a DSC melting point of less than 110° C.

Abstract: A roll press for the compression or compacting of granular products. Two detachable rolls separated by a roll gap are driven in opposite directions and mounted on shafts to rotate in a machine frame. The shafts of the mobile rolls are received in bearing housings arranged in a mobile manner in the machine frame. Two respective bearing housings of different rolls, arranged on one side of the rolls, are interconnected by at least one pressure cylinder having at least two working chambers. A method for centering mobile rolls in such a roll press. The at least two working chambers have a force effect acting in opposite directions, and are interconnected in such a way that a pressure medium can circulate between the chambers. In this way, the hydraulic system is positioned in a fixed manner on the machine frame, the rolls nonetheless being mounted in the machine frame in a floating manner.

Abstract: An unvulcanized rubber composition for calendaring has an elongational viscosity of not more than 102 kPa when measured at a temperature of 95 deg. C., and a shear velocity of 500 to 2000 (1/second). A method for manufacturing a topping rubber for a cord ply embedded in a pneumatic tire is characterized in that, the unvulcanized rubber composition is extended and shaped with the use of calender rolls whose surface temperature is 60 to 100 deg. C.

Abstract: A method of extruding a dry mixture includes providing mixing materials to a twin screw extruder. The mixing materials are substantially dry and may include a substantially unfibrillated binder and a carbon material. The method includes extruding the mixing materials via a twin screw extruder to form an extruded mixture that is substantially dry. In one embodiment, the substantially dry mixture exiting the extruder may be further processed to form an electrode material, such as by a calendaring step.

Abstract: A rubber material is described, modified with a barrier material in the form of a copolymer which can be produced via ring-opening metathesis polymerization of a) at least one olefin monomer selected from the group consisting of monocyclic olefin monomers having one or two endocyclic C—C double bonds and bicyclic olefin monomers having one endocyclic C—C double bond and b) at least one polycyclic olefin monomer having at least two C—C double bonds. The barrier material can be used to reduce the gas permeability of the rubber material.

Abstract: The invention relates to a process to make films and tapes from ultrahigh molecular weight polyethylene (UHMWPE) in the solid state. The films and tapes according to the invention have an improved thickness whereby the coefficient of variation of the thickness of the film of at most 6%.

Abstract: An encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following a1) and a2), and a specific peroxyketal having a 1-hour half-life temperature in a range of 100 to 135 degrees centigrade; the peroxyketal being contained in an amount of 0.1 to less than 0.8 weight parts relative to 100 weight parts of the ethylene/?-olefin copolymer. a1) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240. a2) MFR is from 2 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.

Abstract: A method of making an expanded polytetrafluoroethylene (ePTFE) membrane including the steps of: providing an unsintered or partially sintered ePTFE membrane; matting the unsintered or partially sintered ePTFE membrane; and immediately thereafter, sintering the matted ePTFE membrane. A method for making ePTFE tubes includes the steps of: providing an unsintered or partially sintered ePTFE membrane; wrapping the ePTFE membrane around a mandrel or form tool to form an ePTFE tube; matting the ePTFE tube; immediately thereafter, sintering the matted ePTFE tube; and removing the sintered ePTFE tube from the mandrel or form tool.

Abstract: A method of producing an opened fiber bundle is in a space-saving manner. The method of continuously producing an opened fiber bundle for a cleaning member, includes the steps of (a1) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an air feeder; (a2) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle; (a3) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle; and (a4) blowing air from the air feeder in a direction intersecting with the conveying direction of the first belt-shaped fiber bundle.

Abstract: Systems and methods for forming fiber reinforced polymer tapes are disclosed. A method may include, for example, traversing a polymer impregnated roving through a system comprising an inlet and an outlet, applying a consolidation pressure within the system to the polymer impregnated roving, and applying a smoothing pressure within the system to the polymer impregnated roving. The method may further include adjusting a temperature of the polymer impregnated roving with a heat transfer device between the inlet and the outlet, the heat transfer device having a temperature different from a temperature of the polymer impregnated roving at the inlet.

Abstract: This disclosure is directed to a tire innerliner comprising a dynamically vulcanized alloy of an elastomer and an engineering resin; wherein the innerliner is contoured. The disclosure further relates to methods of making such innerliners and tires made from such innerliners.

Abstract: The present disclosure is in the field of electrical circuits and particularly to circuits characterized by plural conductive paths supported on a non-conductive substrate. The disclosure relates to ceramic filler compositions and methods for preparing said compositions. Further, the present disclosure discloses fluoropolymer-ceramic filler compositions and their laminates along with their respective methods for preparing the same. Said fluoropolymer-ceramic filler compositions provide for excellent properties for dielectric constant, loss tangent and temperature coefficient of dielectric constant. In addition, electrical substrate materials comprising of a conductive outer layer supported on a thin sheet of insulating material is also disclosed.

Abstract: A masterbatch for a thermoplastic compound is disclosed, comprising fly ash and/or cinders and a carrier thermoplastic resin, compatible with or the same as the thermoplastic resin used in the compound. The amount of fly ash and/or cinders comprises at least 50 percent by weight of the masterbatch. Presence of the fly ash and/or cinders can reduce cycle time for molding of the compound into a plastic article by from about 5 percent to about 30 percent merely because of the presence of the fly ash and/or cinders.

Abstract: The invention provides a method of making a flexible and self-supporting insulating end cone liner comprising resilient and compressible non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and a binder, as well as a method of making a pollution control device that includes such an end cone liner.

Abstract: The present invention relates to a method of forming a curved prepreg strip or sheet, especially for use in fabricating a composite component. The method includes providing a strip or sheet of prepreg material having reinforcing fibres and drawing or conveying the prepreg material in a travel direction, wherein the material is drawn or conveyed in the travel direction at a speed which differs across a width of the strip or sheet transverse to the travel direction. Similarly, the invention relates to an apparatus for forming a curved prepreg strip or sheet, having: a mechanism for drawing or conveying a strip or sheet of prepreg material in a travel direction, wherein the mechanism is configured to draw or convey the strip or sheet of prepreg material in the travel direction at a speed which differs across a width of the strip or sheet transverse to the travel direction.

Abstract: [Object] An apparatus and a method for producing optical sheeting with which increased productivity can be achieved while maintaining the accuracy of produced optical sheeting.

Abstract: Thin PTFE layers are described having little or no node and fibril microstructure and methods of manufacturing PTFE layers are disclosed that allow for controllable permeability and porosity of the layers. In some embodiments, the PTFE layers may act as a barrier layer in an endovascular graft or other medical device.

Abstract: A melt-extruded sheet form thermoforming applications is provided. The sheet is formed from a polymer composition containing one or more thermotropic liquid crystalline polymers. The specific nature of the polymer or blend of polymers is selectively controlled so that the resulting polymer composition possesses both a low viscosity and high melt strength.

Abstract: The object of the present disclosure is a non-woven of spunbonded thermoplastic filaments comprising in a characteristic way, at least 95% by mass (g) of its surface mass (g/m2) of at least two polypropylene A and B polymers, said filaments having a titer of less than or equal to 1.3 dtex, said non-woven having a surface mass of less than or equal to 35 g/m2, the welding rate being at least 10% and at most 25% and at least 88% by mass (g) of its surface mass (g/m2) of said polypropylene A polymer obtained by polymerization in the presence of at least one polymerization catalyst based on a metallocene and at most 12% by mass (g) of its surface mass of said polypropylene B polymer.

Abstract: The present invention relates to relates to a stone-made green energy paper and a method for making the same, wherein the stone-made green energy paper is made of some non-toxic materials consisting of a stone powder, a pure-white silica powder and a non-toxic resin. This stone-made green energy paper can be used as a base paper for further machining to a green energy writing paper or a green energy art-using paper. The stone-made green energy paper includes the advantages of good ink absorption, high waterproof, high strength, high folding performance, and free-pollution. Moreover, the most important is that the stone-made green energy paper has no CaCo3 ingredient, so that the stone-made green energy paper can be incinerated through an incinerator, without producing any acid gas.

Abstract: A method for forming an absorbent core. The method includes the steps of forming and compressing an absorbent core, followed by passing the absorbent core through a subsequent nip between two rolls. At least one of the rolls has a surface including an elastic material, such that the hard-spot number of the absorbent core is reduced. Also, a device for forming absorbent cores as well as absorbent cores produced using the method.

Abstract: The invention relates to polyurethanes based on a thermoplastic polyurethane and an isocyanate concentrate having a functionality greater than 2 and less than 10 added to the thermoplastic polyurethane, wherein the hard phase content of the thermoplastic polyurethane is in the range from 0% to 5% and the isocyanate concentrate is added in an amount of at least 2% by weight based on the polyurethane PU-1.

Abstract: A process for producing a solid dispersion of an active ingredient which comprises feeding the active ingredient and a matrix-forming agent to an extruder and forming a uniform extrudate, wherein the extruder comprises at least two rotating shafts (2), each of the shafts (2) carrying a plurality of processing elements disposed axially one behind the other, the processing elements defining (i) a feeding and conveying section (R; A), (ii) at least one reverse-flight section (D), and (iii) a discharging section (E), wherein the processing elements defining the reverse-flight section (R; D) comprise at least one reverse-flight element (14) which is based on a screw-type element having a conveying direction being opposite to the general conveying direction of the extruder.

Abstract: The present invention relates to a solid dosage form with at least one film, which contains an active substance at least in sections, and the concentration of the active substance in the film or in the films has a gradient in a direction normal to the thickness of film. The invention further relates to a method of producing a solid dosage form, in which at least one film is produced, containing an active substance at least in sections, with the concentration of the active substance having a gradient in the longitudinal direction of the film.

Abstract: A process for rolling and stretching of a sheet into a tape is provided. A sheet may be rolled into a rolled sheet in the nip between two rolls of the calender and the rolled sheet is stretched immediately thereafter into a tape on the surface of one of the two calender rolls. The speed of the rolled sheet on the surface of the calender roll may be higher than the speed of the calender roll. The position of the start of the neck-down of the rolled sheet and the rate of neck-down can be easily controlled by the proposed process.

Abstract: Disclosed are highly extensible bonded webs or multilayered sheets containing these. These products can be processed in a ring-roll process without damage. The bonded webs or multilayered sheets can be used, for example in the manufacture of diapers.

Abstract: Novel bioabsorbable polymeric blends are disclosed. The blends have a first component that is a polylactide polymers or a copolymer of lactide and glycolide and a second component that is poly(p-dioxanone) polymer. The novel polymeric blends provide medical devices having dimensional stability. Also disclosed are novel bioabsorbable medical devices made from these novel polymer blends, as well as novel methods of manufacture.

Abstract: A method and apparatus are provided for automatic and hands-free threading of an elastomeric mix into a calender set of rolls comprising one or more pairs of rolls that have a nip between them. A stripper roll is positioned next to one of the rolls forming the nip and is rotated so that the outer surface of the stripper roll moves in a direction opposite to the outer surface of the adjacent roll. The stripper roll removes all or a desired portion of the elastomeric mix from the adjacent roll and causes the same to transfer to another roll. Variables such as e.g., the relative surface speed of the stripper roll, diameter of the stripper roll, and distance of the outer surface of the stripper roll from the adjacent roll can be manipulated to control the amount of the elastomeric mix that is stripped by the stripper roll.

Abstract: Disclosed herein is a textured film formed by a method comprising deforming an organic polymer composition at a temperature below a glass transition temperature of an organic polymer in the organic polymer composition; the deforming being conducted by an application of a shear force, an elongational force, a compressive force, or a combination comprising at least one of the foregoing forces; the forces being applied to the organic polymer composition as it is disposed between a first roll that comprises a rubber surface and a second roll that comprises a textured metal surface; the deforming producing a textured film having a ratio of texturing of about 0.5 to about 3; the textured film having a thickness of about 5 to about 75 micrometers and an average roughness of about 0.3 to about 6 micrometers on opposing surfaces of the film.

Abstract: A method and apparatus are provided for automatic and hands-free threading of an elastomeric mix into a calender set of rolls comprising one or more pairs of rolls that have a nip between them. A wedge is provided with a tip that is positioned downstream from the nip and at a predetermined distance from the nip. As the rolls of the nip are rotated, the tip of the edge removes all, or a desired portion of, the elastomeric mix from a first roll of the nip so as to transfer the elastomeric mix to a second roll of the nip. The tip of the wedge may be placed into contact with the first roll. The wedge may also have an arcuate surface, shaped e.g., like the outer surface of the first roll, and positioned a predetermined distance from the outer surface of the first roll.

Abstract: A process of preparing a polyalkylene terephthalate comprising reacting an alkylene diol and an aromatic dicarboxy compound that is an aromatic dicarboxylic acid, aromatic dicarboxylic (C1-C3)alkyl ester, or a combination thereof, wherein ester interchange and polymerization occurs in the presence of a catalyst complex formed by the reaction of tetraisopropyl titanate and a boron, phosphorous or nitrogen-containing complexing agent, which catalyst can be synthesized in situ prior to ester interchange and introduced to a mixture of the alkylene diol and the aromatic dicarboxy compound prior to ester interchange.