Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formulae (I), (II), or (III):

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Gecko-like adhesive application devices suited for dynamic applications are disclosed, where the device can be easily applied to target substrates, exhibiting a firm hold, and subsequently released therefrom. Gecko-like adhesive application devices that are suited for sustained holding after easy application (e.g., on vertical or inclined surfaces or ceiling) also are disclosed.

Gecko-like adhesive application devices suited for dynamic applications are disclosed, where the device can be easily applied to target substrates, exhibiting a firm hold, and subsequently released therefrom. Gecko-like adhesive application devices that are suited for sustained holding after easy application (e.g., on vertical or inclined surfaces or ceiling) also are disclosed.

Disclosed is a method for preparing an acrylic rubber roll. The method includes mixing and stirring 50-77 wt % 2-ethylhexyl acrylate, 2-10 wt % acrylic acid, 20-40 wt % 2-hydroxyethyl acrylate, and 0.1-0.5 wt % curing agent at room temperature to form a mixture; adding 0.1-0.2 wt % photoinitiator into the mixture, and continuing to stir until the photoinitiator is fully dissolved in order to form an acrylic composition; irradiating the acrylic composition with UV light to crosslink and cure the acrylic composition in order to obtain an acrylic tape; and cutting the acrylic tape according to a size of a plastic rubber roll shaft, and evenly sticking the acrylic tape to a freely-rotatable rubber roll while avoiding air bubbles so as to obtain the acrylic rubber roll.

An adhesive film of the present invention comprises a (meth)acrylate-based copolymer and a cross-linking agent, and a gel fraction thereof is approximately 50-95%, and a ratio of change G′ in storage modulus thereof, represented by the following formula 1, is 20% or less. [Formula 1] G′=(G7−G1)/G1×100 (In formula 1, G1 is a storage modulus at 25° C. when the adhesive film is matured at 23° C. and a relative humidity (RH) of 55% for one day, and G7 represents a storage modulus at 25° C. when the adhesive film is matured at 23° C. and an RH of 55% for seven days.)

The present invention provides an optical adhesive sheet including a layered structure of a first adhesive layer and a second adhesive layer, in which the first adhesive layer has a glass transition temperature of −50° C. to −30° C. and a modulus of 0.3×10.sup.5 Pa to about 0.6×10.sup.5 Pa, and the second adhesive layer has a glass transition temperature of −20° C. to −10° C. and a modulus of 0.7×10.sup.5 Pa to 1.0×10.sup.5 Pa.

The present application relates to a curable composition. The curable composition of the present application exhibits excellent adhesion ability and liquid crystal orientation ability simultaneously before or after curing, so that it can be effectively applied to various optical uses.

The present application relates to a curable composition. The curable composition of the present application exhibits excellent adhesion ability and liquid crystal orientation ability simultaneously before or after curing, so that it can be effectively applied to various optical uses.

A wire harness includes a functional exterior component, at least one electric wire, and at least one thread. The functional exterior component is shaped into a sheet. The electric wire is disposed on one main surface of the functional exterior component. With the thread the electric wire is sewn on the functional exterior component.

A wire harness includes a functional exterior component, at least one electric wire, and at least one thread. The functional exterior component is shaped into a sheet. The electric wire is disposed on one main surface of the functional exterior component. With the thread the electric wire is sewn on the functional exterior component.