A sealing device includes a functional layer having a first major surface and a second major surface and a barrier layer directly or indirectly connected to the second major surface of the functional layer, wherein the functional layer has a surface roughness having a waviness factor W.sub.f. Also disclosed is a method for producing a sealing device and the use of a sealing device for waterproofing of a substrate.

An object of the present invention is to provide a heat dissipation sheet having high thermal conductivity in the thickness direction. The present invention provides a heat dissipation sheet having a structure in which at least two thermally conductive insulation layers are laminated, wherein the lamination direction of the thermally conductive insulation layers is substantially perpendicular to the thickness direction of the heat dissipation sheet, and wherein for the entire cross-section perpendicular to the in-plane direction of the heat dissipation sheet, the thermally conductive insulation layer contains 75 to 97% by area of insulating particles, 3 to 25% by area of a binder resin, and 10% by area or less of voids.

A film that is excellent in easy cuttability and linear cuttability and suppressed in breakability in processing, and a roll and a pressure-sensitive adhesive tape that includes the film. The film has the tensile strength in one direction is 1.1 to 2.5 kN/m and the tensile strength in a direction orthogonal to the one direction is 3.0 to 10 kN/m, or the tensile strain at tensile strength in one direction is 50 to 150% and the tensile strain at tensile strength in a direction orthogonal to the one direction is 8 to 20%.

In an embodiment, a multifunctional material system is provided and can include a variable-permeability layer, a desiccant containing layer, and a vapor-permeable supporting layer. The variable-permeability layer can have a vapor permeability that increases with increasing relative humidity. The desiccant containing layer can be adjacent the variable-permeability layer. The vapor-permeable supporting layer can be positioned adjacent at least one of the variable-permeability layer and the desiccant containing layer. Water moves in a first direction from the variable-permeability layer to the desiccant layer when relative humidity is greater adjacent the variable-permeability layer than the desiccant layer. Water moves a second, opposing direction, from the desiccant containing layer to the variable-permeability layer when the relative humidity is greater adjacent the desiccant containing layer than the variable-permeability layer. The rate of water motion in the first direction is greater than the second direction when the humidity gradient is reversed.

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising, consisting essentially of, or consisting of low-density polyethylene, optionally linear, and at least about 80 wt. % of high-density polyethylene, as well as a second skin layer comprising either: (i) one or more low-density polyethylenes, any or all of them optionally being linear; or (ii) one or more polypropylene-based copolymers. The multilayer film may be oriented in at least one direction.

A barrier material comprising (a) at least one layer of cellulosic substrate comprising MFC, and (b) a first barrier layer arranged on at least one surface of said cellulosic substrate, is provided, as well as a method for reducing the water vapour transmission rate (WVTR) of a cellulosic substrate.

A continuous flexible cement sheet roll for coating construction slabs, is disclosed. The sheet comprising a flexible cement layer, which has a thickness of between 0.3 to 6 mm, such as between 0.5 and 5 mm, and which comprises a) essentially inorganic mortar and b) up to 15% polymeric binder. When the amount of a component in a mixture is expressed in % units, the weight % of the component relative to the weight of the whole mixture is intended. The flexible cement sheet roll of the invention comprises, a reinforcing layer of a thickness lower than the thickness of said cement layer, selected from films of a nonwoven fabrics, layers of organic or inorganic fibers, polymer webs, chop strand mat, and fiberglass mats, among others.

The present disclosure relates to a multilayer composite that may include a multilayer composite that may include a first barrier layer and a first foam layer. The first foam layer may include a silicone-based matrix component, a flame retardant filler component, and an insulation filler component. The multilayer component may have a thickness of at least about 0.5 mm and no greater than about 10 mm. The multilayer component may also have a HBF flammability rating as measured according to ASTM D4986.

The present disclosure relates to a decorative panel with a carrier plate comprising a multi-laminate plastic carrier material with a plurality N of layer sequences of the A-B-A type, wherein layer A comprises a first thermoplastic resin and layer B a second thermoplastic resin different from the thermoplastic resin of layer A and wherein N lies between ≥3 and ≤250.

A laminated body having at least two or more different layers, wherein the laminate body is characterized by satisfying the following requirements (1) to (5): (1) the laminate body has a heat-sealing layer as at least one of the outermost layers, wherein the heat-sealing layer includes a polyester based component containing ethylene terephthalate as a main constituent component, and a sealing strength of 8 N/15 mm to 30 N/15 mm; (2) at least one layer other than the heat-sealing layer is an inorganic thin film layer; (3) a water vapor permeation rate of 0.1 g/m.sup.2.Math.d to 6 g/m.sup.2.Math.d; (4) an oxygen permeation rate of 5 ml/m.sup.2.Math.d.Math.MPa to 30 ml/m.sup.2.Math.d.Math.MPa; and (5) a heat shrinkage rate of −5% to 5%.