Abstract: An adhesive composition and an optical member using the same, the adhesive composition providing an adhesive having a storage modulus of about 8×105 to about 1×108 dyne/cm2 and a gel fraction of about 83% to about 95% as defined by Equation 1: Gel fraction (%)=(A/B)×100,??[Equation 1] in Equation 1, A is a mass measured after dissolving the adhesive at 23° C. for 48 hours in a solvent and then drying for 24 hours, and B is an initial mass.

Abstract: The present invention relates to a water-based adhesive composition, to a method for manufacturing same, and to an adhesive film. The water-based adhesive composition according to the present invention has excellent physical properties such as detachability and reworkability, and can stably prevent changes in the physical properties thereof caused by longitudinal or environmental factors. In addition, the water-based adhesive composition according to the present invention has excellent wettability with respect to various adherends. Accordingly, the water-based adhesive composition according to the present invention can be effectively applied to various industrial adhesive products such as adhesive films for advertisements.

Abstract: Pressure sensitive adhesives comprising a linear block copolymer having a rubbery block and at least one glassy block; a multi-arm block copolymer having at least three arms, each having both a rubbery block and a glassy block; a first high glass transition temperature tackifier compatible with the rubbery blocks; a second high glass transition temperature tackifier having compatible with the glassy blocks; and at least one of a low Tg tackifier, a plasticizer, and combinations thereof, are disclosed. Tapes that include such adhesive, methods of making such tapes, and bonded composites using such adhesives and tapes are also disclosed.

Abstract: An adhesive includes an acrylic copolymer synthesized from a composition including a solution polymerizable acryl-based monomer, a vinyl-based monomer that is copolymerizable with the solution polymerizable acryl-based monomer, a ?-carboxylethyl acrylate monomer, and a reaction initiator, and a compound including at least three epoxy functional groups.

Abstract: An adhesive is described, in particular for applications on substrate materials made of flexible PVC, comprising a polymer which is obtainable via free-radical polymerization of ethylenically unsaturated compounds and which is composed of at least 50% by weight of soft acrylate monomers with glass transition temperature below 0° C., at least 1% by weight of ethylenically unsaturated nitriles, at least 1% by weight of hard acrylate monomers with glass transition temperature of at least 60° C., at least 0.1% by weight of ethylenically unsaturated acid monomers, and at least 0.01% by weight of monomers having at least two non-conjugated, polymerizable vinyl groups, where the polymerization reaction takes place via staged polymerization, and at least one portion of the soft acrylate monomers is polymerized in a first polymerization stage, and at least one portion of the hard acrylate monomers is polymerized in a second or subsequent polymerization stage.

Abstract: Reinforced articles particularly adapted for use in combination with an adhesive to form reinforced adhesive tape articles that are stretchable as well as hand-tearable along with being highly conformable and cinchable.

Abstract: A paint film-protecting sheet (1) that effectively prevents adhesive transfer to the paint film is provided. The paint film-protecting sheet (1) includes a pressure-sensitive adhesive (PSA) layer (20), which is comprised of a non-crosslinking PSA, disposed on a polyolefin-based resin film serving as a supporting substrate (10). At least a surface portion (12) of the supporting substrate which adjoins the PSA layer is formed of a resin material that satisfies both of the following conditions: (1) it contains W wt % of a LLDPE having a density d of 0.925 g/cm3 or less, wherein W is greater than or equal to 20; and (2) it has a LLDPE content index ? of 400 or more, the LLDPE content index ? being defined as (0.935?d)×W×1000.

Abstract: A paint film-protecting sheet (1) is provided which effectively prevents adhesive transfer to the paint film. The paint film-protecting sheet (1) has a pressure-sensitive adhesive layer which is comprised of a non-crosslinking pressure-sensitive adhesive (20) adjacent a polyolefin-based resin film serving as a supporting substrate (10). At least a surface portion (12) of the supporting substrate that adjoins the pressure-sensitive adhesive layer satisfies the following conditions: (1) it has an indentation modulus at 25° C. (Er(25)) of from 200 MPa to 1,100 MPa and (2) it has an indentation modulus at ?5° C. (Er(?5)) of from 400 MPa to 2,400 MPa.

Abstract: Radiation curable adhesive compositions comprising an acrylic polymer and a polyolefin find use in the manufacture of pressure sensitive adhesive articles such as, for example, tapes.

Abstract: Temporarily repositionable pressure sensitive adhesive compositions which are blends of a silicone-modified pressure sensitive adhesive component, a high Tg polymer component and a crosslinker are presented. The silicone-modified pressure sensitive adhesive includes a copolymer that is the reaction product of an acidic or basic monomer, a (meth)acrylic or vinyl monomer, and a silicone macromer. The high Tg polymer component contains acid or base functionality such that when mixed, the silicone-modified pressure sensitive adhesive component and the high Tg polymer component form an acid-base interaction.

Abstract: The invention relates to an adhesive composition comprising at least one polyamide A, with a mean number of carbon atoms per nitrogen atom (C/N), noted CA, of between 4 and 8.5; at least one polyamide B, with a melting point of greater than or equal to 180° C. and a mean number C/N, noted CB, of between 7 and 10; at least one polyamide C, with a mean number C/N, noted CC, of between 9 and 18; at least 50% by weight of the said composition being formed from one or more polyamides chosen from polyamides A, B and C, the mass-weighted mean of the heats of fusion of these polyamides in the said composition being greater than 25 J/g (DSC), the mean number of C/N of the polyamides A, B and C satisfying the following strict inequality: CA<CB<CC, and also to multilayer structures.

Abstract: A hybrid ceramic structure and a method for protecting the hybrid ceramic structure from moisture attack in a high temperature combustion environment are provided. The structure includes a ceramic matrix composite (CMC) substrate (12). A thermal insulation material (14) is disposed on the substrate. A vapor resistant material (20) is applied through at least one surface of the hybrid ceramic structure while the hybrid ceramic structure is in a bisque condition that provides a degree of porosity to the hybrid ceramic structure so that the vapor resistant material is infiltrated through interstices available within a thickness of the hybrid ceramic structure.

Abstract: An optical pressure-sensitive adhesive that is for use in pressure-sensitive adhesive attached optical films, includes an acrylic copolymer and is less likely to cause display unevenness in the peripheral portion of a display screen. An optical pressure-sensitive adhesive, comprising: an acrylic copolymer containing alkyl (meth)acrylate (a1) and N-(2-hydroxyethyl)(meth)acrylamide (a2) as a monomer unit.

Abstract: A gas turbine component (20) with a layer of ceramic material (22) defining a wear surface (21), in which an array of cross-shaped depressions (26A, 26B) formed in the wear surface (21) define a continuous labyrinth of orthogonal walls (28, 30) of the ceramic material, and reduce the area of the wear surface (21) by about 50%. Within a representative area (36) of the wear surface (21), the depressions (26A, 26B) provide a ratio of a lineal sum of depression perimeters (27) divided by the representative area (36) of the wear surface of least 0.9 per unit of measurement for improved abradability characteristics of the wear surface (21).

Abstract: Heat activable adhesive tape for bonding electronic components and conductor tracks, with an adhesive composition having at least an acid-modified or acid anhydride-modified vinylaromatic block copolymer, and epoxide compound and a metal chelate.

Abstract: An adhesive composition and an optical member using the same, the adhesive composition including about 100 parts by weight of a (meth)acrylate copolymer including repeating units derived from a C1-20 alkyl(meth)acrylate monomer, an aromatic group-containing monomer, and a carboxyl group-containing monomer; about 0.01 to about 10 parts by weight of a crosslinking agent; about 0.01 to about 5 parts by weight of a silane coupling agent; and about 0.01 to about 5 parts by weight of a crosslinking catalyst.

Abstract: Optically clear stretch releasing pressure sensitive adhesive films containing a silicone pressure sensitive adhesive composition and a tacky tab are provided. The pressure sensitive adhesive compositions are formed from elastomeric silicone polymer selected from the group consisting of urea-based silicone copolymers, oxamide-based silicone copolymers, amide-based silicone copolymers, urethane-based silicone copolymers, polydiorganosiloxane polymers, or mixtures of these copolymers. The pressure sensitive adhesive compositions may also contain an MQ tackifying resin. The pressure sensitive adhesive compositions may be used to form adhesive articles.

Abstract: An adhesive composition including an acrylic polymer, an epoxy thermosetting resin having an unsaturated hydrocarbon group and a thermosetting agent. Also provided is an adhesive sheet having an adhesive layer including the above-mentioned adhesive composition.

Abstract: A multilayer nonwoven fabric includes a first fiber layer and a second fiber layer laminated and arranged on a first surface of the first fiber layer. A plurality of groove portions are formed along a prescribed direction in a shape depressed in a thickness direction of the multilayer nonwoven fabric. A plurality of raised ridge portions are formed adjacent to the plurality of groove portions in a shape projected in the thickness direction. The basis weight of the raised ridge portion is greater than the basis weight in regions, which include the bottoms of the groove portions. The second fiber layer including each of the plurality of raised ridge portions is in such a shape that a surface, on the side of the first fiber layer, of the second fiber layer is projected in the same direction as the direction in which the second surface of the first fiber layer is projected.

Abstract: The present invention is an electronic whiteboard having a low-gloss surface with anti-graffiti properties.