Abstract: Asymmetric expanded polytetrafluoroethylene (ePTFE) membranes that contain multiple layers of ePTFE where at least one layer of ePTFE has a microstructure different from the microstructure of a second ePTFE layer. In exemplary embodiments, the asymmetric membrane contains a first ePTFE layer that has an “open” microstructure and a second ePTFE layer that has a less open, or “tight” microstructure. A third ePTFE layer having an “open” microstructure may be positioned on the second ePTFE layer. The asymmetric membranes possess print durability and are both abrasion resistant and air permeable. Additionally, printed asymmetric ePTFE membranes demonstrate low gloss. A textile may be affixed to the asymmetric membrane such that the first ePTFE layer is the outer surface of the laminate. Laminates containing the asymmetric membrane are sufficiently durable against abrasion so that articles of apparel having an exterior film surface remain liquidproof after an abrasion challenge.

Abstract: The present disclosure relates to a prepreg formed by drying a fabric substrate impregnated with a resin composition by means of heating until the resin composition is in a semi-cured state. The resin composition contains (A) at least one of an epoxy resin having naphthalene skeleton and a phenolic curing agent; and (B) a polymer having structures represented by the following formulae (I) and (II), no unsaturated bond between carbon atoms, an epoxy value ranging from 0.2 to 0.8 ep/kg, and an weight-average molecular weight ranging from 200,000 to 850,000: wherein X:Y=0:1 to 0.35:0.65, R1 represents H or CH3, and R2 represents H or an alkyl group.

Abstract: A method includes a step of bringing a plastic matrix substance in contact with a reinforcement fiber structure to form an intermediate material. Further, the method includes a step of curing the matrix substance of the intermediate material to form a composite material. Before the plastic matrix substance is brought into contact with the reinforcement fiber structure, it is mixed with a diluent to form a mixture.

Abstract: A flame-retardant thermoplastic elastomer compound is disclosed having polyphenylene ether, a hydrogenated styrene block copolymer, at least one solid non-halogenated phosphorus containing flame retardant, and a nucleated olefinic polymer. The compound has a before-aging tensile elongation of >200% and an after-aging tensile elongation residual of at least 75%, according to the UL 62 test, which makes it useful as an insulation layer, a jacketing layer, or both for protected electrical lines such as alternating current wire and cable products, accessory cables, and variety of injection molded electrical or electronic parts.

Abstract: This invention relates to an insulated container (1) comprising at least one wall (7) comprising at least one layer of a first material including jute, at least one layer of a second material including a natural fiber and at least one layer of a third material including a natural fiber, the layer of the first material being trapped between at least one layer of the second material and at least one layer of the third material, the first, second and third materials being made of woven cloth.

Abstract: The present invention provides methods of making containment liners to protect the environment from spills and leaks at oil and/or gas production sites and other sites. The containment liners comprise a first felt geotextile layer and a polymeric barrier layer embedded partially into the felt geotextile layer.

Abstract: The present invention provides containment liners to protect the environment from spills and leaks at oil and/or gas production sites and other sites. The containment liner comprises a first felt geotextile layer and a polymeric barrier layer embedded partially into the felt geotextile layer.

Abstract: A method for obtaining temporary non-stretchability characteristics, mainly in a machine direction, in a non-woven fabric having any level of stretchability, in order to ease converting is disclosed. The non-stretchability characteristics can be then eliminated in order to restore the original characteristics of the non-woven fabric. This technique allows the formation of final products comprising stretchable non-woven fabrics by converting machines.

Abstract: A flame retardant fabric wherein a flame retardant composition is applied to the fabric while the fabric is being stretched. Preferably the fabric is a blend of cotton and a thermoset. Carbon fibers may be included to impart anti-static properties.

Abstract: Methods for electrospinning a hydrophobic coaxial fiber into a superhydrophobic coaxial fiber mat can include providing an electrospinning coaxial nozzle comprising a core outlet coaxial with a sheath outlet, ejecting an electrospinnable core solution from the core outlet of the electrospinning coaxial nozzle, ejecting a hydrophobic sheath solution from the sheath outlet of the electrospinning coaxial nozzle, wherein the hydrophobic sheath solution annularly surrounds the core solution, applying a voltage between the electrospinning coaxial nozzle and a collection plate, wherein the voltage induces a jet of the electrospinnable core solution annularly surrounded by the hydrophobic sheath solution to travel from the electrospinning coaxial nozzle to the collection plate to form the hydrophobic coaxial fiber comprising an electrospinnable polymer core coated with a hydrophobic sheath material, and wherein collection of the hydrophobic coaxial fiber on the collection plate yields the superhydrophobic coaxial fib

Abstract: The present invention concerns an aqueous flame retardant composition for mineral fiber-based mats, in particular glass or rock fibers, which comprises: at least one thermoplastic or thermoset resin, and at least one organic flame retarding agent chosen from: a) alkyl ketene dimers (AKDs) of formula (I) below: in which R1 and R2, which may be identical or different, represent a C4-C18, preferably C12-C16, alkyl radical; and b) alkenyl succinic anhydrides (ASAs) of formula (II) below: in which R3 and R4, which may be identical or different, represent an alkyl radical, the total number of carbon atoms in these radicals varying from 10 to 18, preferably from 12 to 14. It also concerns mats treated with said aqueous flame retardant composition.

Abstract: The present invention relates to a drawn PET fiber that can provide a cap ply cord and the like showing more improved modulus and good dimensional stability, a PET tire cord, and a tire including the same. The drawn PET fiber may be a fiber including 90 mol % or more of PET, of which the crystallinity is 53% or more, the amorphous orientation factor (AOF) is 0.15 or less, and the birefringence index is 0.14 to 0.16, after heat-treating the same at 230° C. for 1 minute under the initial load of 20 g/1000 d.

Abstract: The flame-retarding properties of polymeric compositions are selectively enhanced, without adversely affecting other properties of these materials to any significant degree, by including in the compositions oligomeric urethanes with high bromine content.

Abstract: The present invention relates to fire resistant composite materials and to fire resistant fabric materials and mattresses made therefrom. The composite materials include (a) a substrate selected from the group consisting of cotton, rayon, lyocell, wool, silk and blends thereof; and (b) a coating consisting essentially of water, ammonium polyphosphate, binder material and cellulose filler material. The binder material bonds the ammonium polyphosphate and cellulose filler materials together and to the substrate such that the substrate is coated with the coating.

Abstract: The invention relates to an adhesive tape composed of a carrier and of an adhesive layer applied on at least one side, the carrier being a woven fabric, preferably a woven polyester fabric, characterized in that the ratio of the linear density per unit length of the transverse threads to the linear density per unit width of the longitudinal threads is between 2.2 and 6 and the carrier has a basis weight of greater than or equal to 110 g/m2.

Abstract: A non-crimp fabric includes at least two superimposed layers made from multifilament reinforcing yarns arranged parallel to each other, and at least one layer made from a non-woven made from thermoplastic polymer material on and/or between the layers made from multifilament reinforcing yarns, wherein the non-woven includes a first polymer component and a second polymer component whose melting temperatures lie below the melting or decomposition temperature of the reinforcing yarns. The first polymer component has a lower melting temperature than the second polymer component, and the first polymer component is soluble in epoxy matrix resins, cyanate ester matrix resins, benzoxazine matrix resins, or mixtures thereof. The second polymer component is not soluble in epoxy matrix resins, cyanate ester matrix resins, benzoxazine matrix resins, or mixtures thereof. A preform is made from the non-crimp fabric.

Abstract: The present invention relates to a surface of a substrate, or the substrate itself, exhibiting superhydrophobic characteristics when treated with a formulation comprising a hydrophobic component, nano-structured particles and water. The superhydrophobicity can be applied either over the entire surface, patterned throughout or on the substrate material, and/or directly penetrated through the z-directional thickness of the substrate material.

Abstract: Method for imparting elasticity to a laminate comprising at least one elastic film having a width and at least one ply of non-woven material secured to the film, particularly through interposition of a bonding material, particularly glue, which comprises the following steps in which: the laminate is unrolled in the form of a web in order to pass it between two sets of toothing, of which the teeth engage in each other in a direction perpendicular to the plane of the laminate in order to thus stretch the laminate in the direction of its width, characterised in that: a tension is imparted to the web in the longitudinal direction or machine direction during its unrolling between the toothing, particularly by providing a tensioner roll, particularly downstream of the sets of toothing.

Abstract: The present invention relates to a drawn PET fiber which has good dimensional stability, thereby increases the high speed driving performance of a tire, a PET tire cord, their preparation methods, and a tire including the same. The drawn PET fiber may includes 90 mol % or more of PET and may be a fiber of which a creep rate is 5.5% or less when the drawn PET fiber is fixed under the initial load of 0.01 g/d and is kept for 24 hours under the load of 0.791 g/d and the temperature of 100° C. Furthermore, the PET tire cord may be a cord of which a creep rate is 4.0% or less when the PET tire cord is fixed under the initial load of 0.01 g/d and is kept for 24 hours under the load of 0.791 g/d and the temperature of 100° C.

Abstract: An aqueous composition includes polyvinyl alcohol, an acid having a pKa of at most 4.0, and a dispersion of a polymer in which vinyl acetate units constitute at least 60 wt % of the polymer. The polymer does not contain units of any N-methylol-containing monomer, and at least a portion of the polyvinyl alcohol is present in the form of an emulsion stabilizer for the polymer. The wet strength of a fibrous nonwoven substrate can be increased by applying one or more aqueous compositions that together include polyvinyl alcohol, an acid having a pKa of at most 4.0, and a dispersion of a polymer as described above, followed by a final drying step. A fibrous nonwoven article can be prepared in this way.