A film comprising a perforated layer, wherein the perforated layer is characterized by water vapor transmission rate (WVTR) of at least 300 gr/m2/day; and wherein the perforated layer is characterized by a liquid permeability of less than 0.6 gr when measured according to AATCC 35. Further, methods of manufacturing the composition of the invention are provided.

Improved containment mats and systems of containment mats may include multiple adjoining mats with a top surface and a bottom surface. The multiple mats may provide a modular structural mat system that may be installed at a drill site, with multiple mats placed adjacent to each other with a lap joint connecting adjacent mats. A geotextile may be used to cover the lap joints and a coating applied to the geotextile. Such a system may provide containment of potential spills, a reliable working surface for drilling operations, and relatively fast and less expensive installation.

Method for packaging electrical insulators (4) for high voltage or very high voltage, such as electrical line insulators made with a dielectric material chosen from glass or porcelain, and more specifically, electrical insulators with a protective hydrophobic silicone elastomer coating covering the surface of the electrical insulators, under vacuum or under inert gas.

A multilayer article comprising at least a first layer of a thermoplastic polyurethane (TPU) resin composition, a second layer of a TPU resin composition and a core layer between the first layer and the second layer, the core layer comprising a barrier resin composition, wherein the barrier resin composition comprises an ethylene vinyl alcohol copolymer (EVOH) (A), a hydroxyl group containing compound (B) having a molecular weight of 200 or less, a ratio of a number of hydroxyl groups in one molecule relative to the molecular weight within a range of form 0.02 to 0.03, and a melting point of from about 23° C. to about 200° C., and a fatty acid metal salt (C), the multilayer article having good elasticity, stretchability and barrier properties suitable for use in chemical suits and gloves.

The panel includes a water resistant barrier layer secured atop its outward facing surface. The water resistant barrier layer includes a skid resistant surface. The panels are made of lignocellulosic material. The water resistant and skid resistant surface may include indicia for aligning strips of tape or for aligning fasteners. A method for manufacturing the water resistant building panels is also disclosed and includes the steps of feeding paper onto a forming belt, depositing lignocellulosic material and the binding agent onto the forming belt so as to form a lignocellulosic mat, applying heat and pressure so as to impart the skid resistant surface on the paper, and cutting panels to predetermined sizes.

A paper based overlay is provided. The overlay has a paper impregnated with a resin composition having an acrylic resin having a glass transition temperature in a range of from about −20° C. to about 40° C. and a resin content from about 15 to about 35 wt. % based on the weight of the overlay. The acrylic composition may include wax in the amount of about 0.005 to about 3.5 wt. % based on the weight of the resin composition. A method of producing the overlay is also provided. The overlay is highly water and abrasion resistant with low volatile content.

A fire extinguishing device is for a motor vehicle. The fire extinguishing device includes an internal cavity containing a pressurized fire extinguishing fluid. The cavity is delimited by a wall, the wall having at least one barrier layer (b) containing a semi-aromatic polyamide composition (B).

A method of forming a sloped roof can comprise obtaining a base layer comprising at least one of a permeable mesh, woven fabric, non-woven fabric, plastic, foam material or combinations thereof; applying the base layer over a roofing substrate of the sloped roof; and applying a liquid roofing material to the base layer to form a liquid applied roof.

The invention discloses a paperboard for packaging of a heat-sealable packaging material comprising: —a paperboard substrate comprising a first and a second side, —a first and an optional second dispersion coating layer on the first side, which first and optional second dispersion coating layer provides a barrier against at least one of liquid, moisture, grease and gas, —an extrusion coated barrier layer comprising a polyolefin, wherein the first and optional second dispersion coating layer is applied between the paperboard substrate and the extrusion coated barrier layer, and wherein the coat weight of the extrusion coated barrier layer is less than 15 gsm. The packaging material according of the invention minimizes the amount of plastic coating, but still provides the needed barrier properties for the packaging of food and/or liquid. The packaging material has especially been shown to provide a longer shelf life for food items packed in a packaging made from the material. Especially, the packaging material provides gas-, liquid and/or grease barrier properties. Although the packaging material comprises such low amount of extruded thermoplastic polymers, the material is readily heat-sealable.

A stiffness control and systems for the same are disclosed herein. A first plate and a second plate can be connected with rigid support, a hydraulic actuator and a high roughness surface. Upon actuation, the actuator can force the high roughness surface against the first plate, thus increasing rigidity through hydraulic pressure against the first plate and the second plate. Thus, the stiffness of the surface can be altered in a variable and reversible fashion.