An object of the present invention is to provide a pressure-sensitive adhesive sheet enables a pressure-sensitive adhesive layer to be formed, wherein the pressure-sensitive adhesive layer has a low dielectric constant, is excellent in level difference conformability while maintaining adhesive strength and adhesion reliability at high temperatures, and suitable for laminating a metal mesh film and the like. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer containing an acrylic polymer (A) and a hydrogenated polyolefinic resin (B) that exhibits liquid flowability at 25° C. The pressure-sensitive adhesive layer has a dielectric constant at a frequency of 1 MHz of from 2.3 to 3.5. The pressure-sensitive adhesive sheet has a 180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 65° C. of 6 N/20 mm or more. In the pressure-sensitive adhesive sheet, the proportion of the 180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 65° C. to the 180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 25° C. (180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 65° C./180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 25° C.×100) is 30 or more.

A curable primer composition comprising:(a) a curable component such as methacrylate; (b) a cure initiating component; and (c) a polymer material selected from the group consisting of: (i) block polymers represented by S-A-S where S is polystyrene and A stands for a polymer or copolymer formed from one or more of ethylene, propylene, butylene, and styrene, which are optionally substituted with carboxylic acid or maleic anhydride; provided that when A comprises styrene then A is a copolymer of styrene with at least one of ethylene, propylene and butylene, and is optionally substituted with carboxylic acid or maleic anhydride; and (ii) polystyrene-poly(ethylene-propylene) (“SEP”); and (iii) any combination of said polymer materials. The composition is applied to a part then photocured. It is dry to touch. Thereafter a thermoplastic material such as a polyolefin is overmolded (e.g. injection molded) over the applied composition. It enhances bond strength of the polyolefin to the part.

A curable primer composition comprising:(a) a curable component such as methacrylate; (b) a cure initiating component; and (c) a polymer material selected from the group consisting of: (i) block polymers represented by S-A-S where S is polystyrene and A stands for a polymer or copolymer formed from one or more of ethylene, propylene, butylene, and styrene, which are optionally substituted with carboxylic acid or maleic anhydride; provided that when A comprises styrene then A is a copolymer of styrene with at least one of ethylene, propylene and butylene, and is optionally substituted with carboxylic acid or maleic anhydride; and (ii) polystyrene-poly(ethylene-propylene) (“SEP”); and (iii) any combination of said polymer materials. The composition is applied to a part then photocured. It is dry to touch. Thereafter a thermoplastic material such as a polyolefin is overmolded (e.g. injection molded) over the applied composition. It enhances bond strength of the polyolefin to the part.

A multilayer adhesive tape is provided, including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially. At least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.

A multilayer adhesive tape is provided, including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially. At least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.

A surface covering is provided. The surface covering includes a laminated panel and an ultra-violet (UV) curable surface coating applied to the laminated panel. The ultra-violet (UV) curable surface coating includes a first coating, a second coating, abrasive resistant particles, and an antimicrobial additive. The second coating is a composition distinctive of the first coating, the first coating is cured at a lower energy than the second coating, the second coating is cured at a higher energy to cure both the first coating and the second coating. The abrasive resistant particles include silicon carbide (SiC) particles wherein at least 50% of the silicon carbide (SiC) particles have a particle size of less than 45 m.Math.. The antimicrobial additive selected from a group consisting of N-butyl- 1, 2-benzisothiazolin-3-one, alkyl dimethyl ammonium saccharinates, Zinc 2-pyridinethiol-1-oxide, 10, 10′-Oxybisphenoxarsine (OBPA), 4,5-Dichloro-2-octyl-4isothiazolin-3-one (DCOIT) and mixtures thereof.

A surface covering is provided. The surface covering includes a laminated panel and an ultra-violet (UV) curable surface coating applied to the laminated panel. The ultra-violet (UV) curable surface coating includes a first coating, a second coating, abrasive resistant particles, and an antimicrobial additive. The second coating is a composition distinctive of the first coating, the first coating is cured at a lower energy than the second coating, the second coating is cured at a higher energy to cure both the first coating and the second coating. The abrasive resistant particles include silicon carbide (SiC) particles wherein at least 50% of the silicon carbide (SiC) particles have a particle size of less than 45 m.Math.. The antimicrobial additive selected from a group consisting of N-butyl- 1, 2-benzisothiazolin-3-one, alkyl dimethyl ammonium saccharinates, Zinc 2-pyridinethiol-1-oxide, 10, 10′-Oxybisphenoxarsine (OBPA), 4,5-Dichloro-2-octyl-4isothiazolin-3-one (DCOIT) and mixtures thereof.

An optical laminated member having an antiglare hard coat layer and a clear hard coat layer sequentially laminated on at least one side of a transparent polymer substrate, the antiglare hard coat layer being a cured layer of a coating composition for forming an antiglare layer and having continuous random irregularities on its surface, and a ten-point average roughness Rz.sub.JIS of a surface of the antiglare hard coat layer is 0.1 to 2 μm, the clear hard coat layer is a cured layer of a clear hard coating composition, the clear hard coat layer is laminated on a part of the antiglare hard coat layer.

An optical laminated member having an antiglare hard coat layer and a clear hard coat layer sequentially laminated on at least one side of a transparent polymer substrate, the antiglare hard coat layer being a cured layer of a coating composition for forming an antiglare layer and having continuous random irregularities on its surface, and a ten-point average roughness Rz.sub.JIS of a surface of the antiglare hard coat layer is 0.1 to 2 μm, the clear hard coat layer is a cured layer of a clear hard coating composition, the clear hard coat layer is laminated on a part of the antiglare hard coat layer.

An adhesive set includes a main agent containing a decomplexing agent and an initiator containing an organoborane complex. At least one of the main agent and the initiator further contains a compound having a radically polymerizable group. At least one of the main agent and the initiator further contains a compound having a thiocarbonylthio structure.