Abstract: The pressure-sensitive adhesive film according to the present invention comprises a resin film as a substrate and a pressure-sensitive adhesive layer provided at least on a face of the resin film. The resin film has a multi-layer constitution consisting of at least two layers. The resin film has a laser beam reflectance of 5% or higher, but 40% or lower in a wavelength range of 1000 nm to 1100 nm, and has a laser beam transmittance of 5% or lower in the said wavelength range.

Abstract: The pressure-sensitive adhesive film according to the present invention comprises a resin film as a substrate and a pressure-sensitive adhesive layer provided at least on a face of the resin film. The resin film has a multi-layer constitution consisting of at least two layers. The resin film has a laser beam reflectance of 5% or higher, but 40% or lower in a wavelength range of 1000 nm to 1100 nm, and has a laser beam transmittance of 5% or lower in the said wavelength range.

Abstract: The pressure-sensitive adhesive film according to the present invention comprises a resin film as a substrate and a pressure-sensitive adhesive layer provided at least on a face of the resin film. The resin film has a multi-layer constitution consisting of at least two layers. The resin film has a laser beam reflectance of 5% or higher, but 40% or lower in a wavelength range of 1000 nm to 1100 nm, and has a laser beam transmittance of 5% or lower in the said wavelength range.

Abstract: There are provided an optical surface protection film capable of permitting even a visual inspection of a coated body having a fine roughness, such as a prism sheet, to be performed under the condition that the protection film is attached to the coated body and excelling in adhesion reliability without an optical adverse effect on the coated body, and an optical film with the surface protection film. The optical surface protection film (1) has a base material layer (10) and an adhesive layer (12) stacked on one surface of the base material layer. The surface of the base material layer (10) on the side of the adhesive layer (12) has an arithmetic surface average roughness (Ra2) of 0.65 ?m or less. The other surface of the base material layer (10) has an arithmetic surface average roughness (Ra1) of 0.6 ?m or more.

Abstract: Provided is a pressure-sensitive adhesive film suitable for an application involving cutting with a short-wavelength laser having a center wavelength of 1.0 ?m to 1.1 ?m. A pressure-sensitive adhesive film 1 according to the present invention comprises a resin film 10 as a substrate, and a pressure-sensitive adhesive layer 20 provided at least on a first face of resin film 10. Substrate 10 has a laser beam absorbance of 20% or higher in a wavelength range of 1000 nm to 1100 nm, and comprises a laser beam-absorbing layer 42 formed from a resin composition that comprises a carbon black 402 as a laser beam-absorbing agent that increases the laser beam absorbance.

Abstract: Provided is a pressure-sensitive adhesive film suitable for an application involving cutting with a short-wavelength laser having a center wavelength of 1.0 ?m to 1.1 ?m. A pressure-sensitive adhesive film 1 according to the present invention comprises a resin film 10 as a substrate, and a pressure-sensitive adhesive layer 20 provided at least on a first face of resin film 10. Substrate 10 has a laser beam absorbance of 20% or higher in a wavelength range of 1000 nm to 1100 nm, and comprises a laser beam-absorbing layer 42 comprising a laser beam-absorbing agent 402 that increases the laser beam absorbance. As laser beam-absorbing agent 402, at least one species selected from a metal powder and a metallic compound powder can be preferably used.

Abstract: There are provided an optical surface protection film capable of permitting even a visual inspection of a coated body having a fine roughness, such as a prism sheet, to be performed under the condition that the protection film is attached to the coated body and excelling in adhesion reliability without an optical adverse effect on the coated body, and an optical film with the surface protection film. The optical surface protection film (1) has a base material layer (10) and an adhesive layer (12) stacked on one surface of the base material layer. The surface of the base material layer (10) on the side of the adhesive layer (12) has an arithmetic surface average roughness (Ra2) of 0.65 ?m or less. The other surface of the base material layer (10) has an arithmetic surface average roughness (Ra1) of 0.6 ?m or more.

Abstract: Provided is a surface protective sheet, which satisfactorily adheres to an adherend and which can be easily re-released and suppresses contamination due to a pressure-sensitive adhesive remaining on the surface of the adherend after the release of the sheet. The surface protective sheet includes: a base material layer; and a pressure-sensitive adhesive layer, in which a difference ?T (%) between the visible light transmittance T1 (%) of a transparent substrate having an antireflection film and the visible light transmittance T2 (%) of the transparent substrate resulting when the surface protective sheet is attached to one side of the transparent substrate and left to stand at 160° C. for 1 hour, and then the surface protective sheet is released under a temperature environment of 23° C. (?T=T1?T2) satisfies a relationship of ?T?1.8.

Abstract: The pressure-sensitive adhesive film according to the present invention comprises a resin film as a substrate and a pressure-sensitive adhesive layer provided at least on a face of the resin film. The resin film has a multi-layer constitution consisting of at least two layers. The resin film has a laser beam reflectance of 5% or higher, but 40% or lower in a wavelength range of 1000 nm to 1100 nm, and has a laser beam transmittance of 5% or lower in the said wavelength range.

Abstract: Provided is a surface protective sheet, which satisfactorily adheres to an adherend and which can be easily re-released and suppresses contamination due to a pressure-sensitive adhesive remaining on the surface of the adherend after the release of the sheet. The surface protective sheet includes: a base material layer; and a pressure-sensitive adhesive layer, in which a difference ?T (%) between the visible light transmittance T1(%) of a transparent substrate having an antireflection film and the visible light transmittance T2(%) of the transparent substrate resulting when the surface protective sheet is attached to one side of the transparent substrate and left to stand at 160° C. for 1 hour, and then the surface protective sheet is released under a temperature environment of 23° C. (?T=T1?T2) satisfies a relationship of ?T?1.8.

Abstract: A surface protective sheet 1 endowed with both a higher re-peelability and higher non-staining properties is provided. The surface protective sheet 1 has a supporting substrate 10 and a pressure-sensitive adhesive layer 20 provided on a front side of the supporting substrate 10. At least a portion of the supporting substrate 10, including the front side 10a, is made of a resin material that is composed primarily of a polyolefin and includes A: at least one of a fatty amide and a fatty acid metal salt, and B: an antioxidant. The content CA of the component A, based on the weight of the resin material, is from 50 ppm to 500 ppm.

Abstract: A protective sheet is provided that achieves both a high level of performance as a protective sheet (particularly a protective sheet for masking during plating) and an excellent ease of use. The protective sheet includes a substrate and a pressure-sensitive adhesive (PSA) layer which is provided on one side of the substrate. The PSA layer is formed of an acrylic PSA composition which includes a crosslinking agent and a crosslinking accelerator. The sum DS80 of a flexural rigidity DM80 of the protective sheet at 80° C. in the machine direction and a flexural rigidity DT80 of the protective sheet at 80° C. in the transverse direction is from 0.1×10?6 Pa·m3 to 1.2×10?6 Pa·m3. The PSA layer has a storage modulus G? at 100° C., as measured at a frequency of 1 Hz, of from 0.230×106 Pa to 10×106 Pa.

Abstract: A protective sheet (for example, a protective sheet for masking during plating) is provided that has an excellent balance of adherence to the surface of an adherend and easy releasability when heat and pressure bonded. The protective sheet includes a substrate and a pressure-sensitive adhesive (PSA) layer which is provided on one side of the substrate. The PSA layer is thermoplastic. When the protective sheet is pressure bonded to a polyimide film at a temperature of 120° C. and a pressure of 0.34 MPa for a pressing time of 5 seconds, the protective sheet has a peel strength PSHP, as measured by peeling the protective sheet from the polyimide film at a temperature of 25° C., a peel rate of 5 m/min and a peel angle of 180°, of from 0.05 N/10 mm to 1.0 N/10 mm.

Abstract: A protective sheet 10 is provided which exhibits excellent properties as a protective sheet and a satisfactory handleability. The protective sheet 10 is formed of a substrate 1 which is a plastic film and a pressure-sensitive adhesive layer 2 which is provided on one side of the substrate, and satisfies all of the following properties: (A) the total flexural rigidity DTrt at 25° C. in a first direction and a second direction is from 3.0×10?6 to 20×10?6 Pa·m3; (B) the total flexural rigidity DTht at 80° C. is from 0.10×10?6 to 1.2×10?6 Pa·m3; (C) the flexural rigidity ratio DR, defined as DTrt/DTht, is from 3.0 to 80; and (D) the tensions T1rt and T2rt at 25° C. when stretched 10% in the first direction and the second direction respectively are at least 5.0 N/10 mm.

Abstract: There are provided an optical surface protection film capable of permitting even a visual inspection of a coated body having a fine roughness, such as a prism sheet, to be performed under the condition that the protection film is attached to the coated body and excelling in adhesion reliability without an optical adverse effect on the coated body, and an optical film with the surface protection film. The optical surface protection film (1) has a base material layer (10) and an adhesive layer (12) stacked on one surface of the base material layer. The surface of the base material layer (10) on the side of the adhesive layer (12) has an arithmetic surface average roughness (Ra2) of 0.65 ?m or less. The other surface of the base material layer (10) has an arithmetic surface average roughness (Ra1) of 0.6 ?m or more.

Abstract: A method is to manufacture a surface protective film for transparent conductive films having a rate of thermal shrinkage of no more than 0.9% in both MD (machine direction) and TD (width direction) as measured after being heated at 150° C. for 1 hour. The method includes: providing a base material film; applying an adhesive on one surface of the base material film; and applying a drawing tension of no more than 80 N per width of 1 m of the base material film under conditions of a temperature of 100° C. through 150° C. and a residence time of 20 through 120 seconds, thereby removing a residual stress and simultaneously drying the adhesive.

Abstract: To present a surface protecting film low in peeling strength (rewinding force) on own back side even by using a rubber material pressure-sensitive adhesive, and excellent in adhesion reliance on an adherend, and an optical film using such surface protecting film. A surface protecting film having a pressure-sensitive adhesive layer laminated at one side of a base layer, and a backside treatment layer at other side of the base layer, in which the pressure-sensitive adhesive layer is formed of a rubber material, and the backside treatment layer is formed of an acrylic silicone graft polymer.

Abstract: A transparent surface protective film includes: a transparent base material film, a transparent adhesive layer formed on one side of the base material film, and a transparent antistatic layer formed on the other side of the base material film. The antistatic layer includes a cationic compound blended with a polyvinyl alcohol based polymer, and the transparent surface protective film is configured to maintain transparency even after one-hour heat treatment at 150° C.

Abstract: A method is to manufacture a surface protective film for transparent conductive films having a rate of thermal shrinkage of no more than 0.9% in both MD (machine direction) and TD (width direction) as measured after being heated at 150° C. for 1 hour. The method includes: providing a base material film; applying an adhesive on one surface of the base material film; and applying a drawing tension of no more than 80 N per width of 1 m of the base material film under conditions of a temperature of 100° C. through 150° C. and a residence time of 20 through 120 seconds, thereby removing a residual stress and simultaneously drying the adhesive.

Abstract: A surfa e prote tive film for transparent onductive films is provided that does not demonstrate large curling after a transparent conductive film with the surface protective film attached thereon is introduced in a heating process of about 150° C.