Provided is a decorative film having excellent weather resistance, scratch resistance, and elongation properties, and a decorative article using the same, and a surface protective composition that can exhibit such properties. A decorative film according to one embodiment of the present disclosure includes a surface protective layer. The surface protective layer contains a polyurethane resin obtained by reacting a composition containing a polycarbonate diol, and a trimer or higher multimer of a diisocyanate including a cyclohexane structure, a diisocyanate including a cyclohexane structure or a prepolymer thereof, or a mixture thereof, and the decorative film satisfies Formulas 1 to 3 below: 0≤X.sup.1≤2.00 . . . Formula 1 X.sup.1≤−0.7×X.sup.2+4.67 . . . Formula 2 X.sup.1≥−0.7×X.sup.2+2.14 . . . Formula 3 where X.sup.1 is a numerical value obtained by multiplying the number of branches from a branch point relative to a converted molecular weight of the polyurethane resin by 1000, and X.sup.2 is a numerical value obtained by multiplying the number of cyclohexane structure portions included in the polyurethane resin relative to the converted molecular weight of the polyurethane resin by 1000.

A wet friction material includes a base including a matrix of fibers and filler particles embedded in the matrix of fibers; a binder embedded in an interior of the base; and a quaternary ammonium salt containing coating on an outer surface of the base. The quaternary ammonium salt containing coating can include a quaternary ammonium salt and a solution binder.

Pressure sensitive adhesives and tapes having flame-retardant properties include a substrate layer and a layer of pressure sensitive adhesive disposed on the substrate layer. The pressure sensitive adhesive is a UV-cured composition of a curable composition. The curable composition includes a polymerizable (meth)acrylate-based mixture, a polymerizable aromatic (meth)acrylate oligomer, a liquid flame retarding agent, and at least one UV initiator. The UV-cured composition is an optically clear pressure sensitive adhesive with flame retarding properties.

Described herein is a method for joining a first metal pipe with a second metal pipe, the pipes being joined together in an overlapping area by use of a two-component polyurethane adhesive that encapsulates the overlapping area, where the method includes the steps of:

(1) applying the two-component polyurethane adhesive onto an inner surface of a fixture;
(2) inserting one end of the first metal pipe into one end of the second metal pipe so as to form a pipe assembly having the overlapping area between the two ends, and putting the overlapping area of the pipe assembly into the fixture; (3) closing the fixture such that the overlapping area of the pipe assembly is fixed in the fixture, and such that the adhesive therein encapsulates the overlapping area of the pipe assembly; (4) curing the two-component polyurethane adhesive; and (5) optionally, removing the fixture from the pipe assembly.

A device and method for sealing or repairing a leaking and/or damaged location on an inner wall of a pipe, includes a volume-expandable bellow body configured to expand, with an increase in its volume, when the bellows body is positioned in the region of the leaking and/or damaged location in the interior of the pipe, with infiltration of a fluid, into a bellows-body interior. A carrier portion is formed on an outer surface of the bellows body, a resinated sealing mat being arrangeable on the carrier portion, the sealing mat being fastenable to the inner wall of the pipe, and being able to cure, in an expanded state of the bellows body in the region of the leaking and/or damaged location by being pressed against said-the inner wall. The device can also be used reliably in long-term use, such that the carrier portion is formed from Para rubber or silicone.

The present disclosure relates to articles and/or constructions with cohesive and to methods of making and using them. Many embodiments provide crush resistance in addition to customizability.

The present invention relates to a three-dimensional string woven air cushion and a method of manufacturing the same, the three-dimensional string woven air cushion including a lower sheet layer made by interlacing a plurality of weft yarns and a plurality of warp yarns and configured to define a predetermined thickness layer and a bottom surface, an upper sheet layer made by interlacing a plurality of weft yarns and a plurality of warp yarns and configured to define a predetermined thickness layer and a top surface, the upper sheet layer being disposed above the lower sheet layer, provided in parallel with the lower sheet layer, and spaced apart from the lower sheet layer at a predetermined distance, and an interval maintaining yarn layer made by interlacing interval maintaining yarns connected to at least one of the weft yarn and the warp yarn of each of the lower and upper sheet layers, the interval maintaining yarns being continuously interlaced and connected in a zigzag manner in a direction from one side to the other side, thereby providing an advantage that greatly improve a user’s sleeping convenience.

A fibre-reinforced polymer composite comprising fibres bound within a solid polymer matrix, wherein at least some of the fibres are in contact with graphene, and wherein the composite changes electrical resistance when deformed.

A prepreg includes composition elements [A], [B], and [C] described below, [A] a reinforcing fiber, [B] a thermosetting resin, and [C] a thermoplastic resin. [C] is present on a surface of the prepreg, [B] contains a first curing agent [b1] and a second curing agent [b2], and the reinforcing fiber of [A] that crosses over a boundary surface between a resin region containing [B] and a resin region containing [C] and that is in contact with both resin regions is present.

The present invention provides a metal-plastic composite material having excellent adhesive strength and formability and a method for manufacturing the same, and specifically, the present invention provides a metal-plastic composite material and a method for manufacturing the same comprising: a metal layer; and a plastic layer on at least one surface of the metal layer, wherein a thin film layer formed of a silane coupling agent is provided between the metal layer and the plastic layer, and the metal layer and the plastic layer are bonded by covalent bonding with the silane coupling agent.