Abstract: A double-sided pressure-sensitive adhesive tape includes a support base member having a hand tearable property, a first acrylic adhesive layer on one surface of the support base member, and a second acrylic adhesive layer on another surface of the support base member. The first acrylic adhesive layer has a thickness t1 that is 5 ?m or more and 50 ?m or less, the second acrylic adhesive layer has a thickness t2 that is greater than the thickness t1 of the first acrylic adhesive layer and is 20 ?m or more, the second acrylic adhesive layer has gel fraction X2 that is 20 mass % or more and 75 mass % or less, and the second acrylic adhesive layer has adhesive force greater than adhesive force of the first acrylic adhesive layer.

Abstract: A double-sided pressure-sensitive adhesive tape includes a support base member having a hand tearable property, a first acrylic adhesive layer on one surface of the support base member, and a second acrylic adhesive layer on another surface of the support base member. The first acrylic adhesive layer has a thickness t1 that is 5 ?m or more and 50 ?m or less, the second acrylic adhesive layer has a thickness t2 that is greater than the thickness t1 of the first acrylic adhesive layer and is 20 ?m or more, the second acrylic adhesive layer has gel fraction X2 that is 20 mass % or more and 75 mass % or less, and the second acrylic adhesive layer has adhesive force greater than adhesive force of the first acrylic adhesive layer.

Abstract: The object of the present invention is provision of a surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face, which can protect the surface of an application object, and does not allow easy development of a dross during laser cutting processing. According to the present invention, a surface protection sheet 1 for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face 2a of a workpiece 2 during a cutting process by irradiation of a laser beam 6 on the workpiece 2 is provided, which contains a substrate layer and an adhesive layer formed on one surface of the substrate layer, wherein the substrate layer is made of a resin material having a melt viscosity measured based on JIS K7199 (1999) at 290° C. of not more than 200 Pa·s, and has a thickness of 0.01-0.12 mm.

Abstract: A carrier film for transparent conductive films, including: a support; and a pressure-sensitive adhesive layer provided on at least one side of the support, wherein the pressure-sensitive adhesive layer has an adhesive surface with an arithmetic mean surface waviness Wa of 70 nm or less opposite to an adhesive surface in contact with the support.

Abstract: A pressure-sensitive adhesive film, including a substrate and a pressure-sensitive adhesive layer provided on at least one side of the substrate, wherein the pressure-sensitive adhesive layer contains a (meth)acryl-based polymer, an alkali metal salt, and a crosslinking agent, and the pressure-sensitive adhesive layer contains 2 parts by weight or less of the crosslinking agent based on 100 parts by weight of the (meth)acryl-based polymer, the pressure-sensitive adhesive film having an adhesive strength of 0.5 N/25 mm or more as measured at a tension rate of 0.3 m/minute after it is placed on an adherend of an acrylic panel under conditions of 23° C. and 50% RH for 30 minutes, and uses for the film.

Abstract: A pressure-sensitive adhesive film including a substrate and a pressure-sensitive adhesive layer provided on at least one side of the substrate, wherein the pressure-sensitive adhesive layer contains a (meth)acryl-based polymer, an ionic liquid, and a crosslinking agent, and the pressure-sensitive adhesive layer contains 2 parts by weight or less of the crosslinking agent based on 100 parts by weight of the (meth)acryl-based polymer, the pressure-sensitive adhesive film having an adhesive strength of 0.5 N/25 mm or more as measured at a tension rate of 1.0 m/minute after it is placed on an adherend of an acrylic panel under the conditions of 23° C. and 50% RH for 30 minutes.

Abstract: A protective film has a base layer and a pressure-sensitive adhesive layer provided on one surface of the base layer. In the protective film, a ventilation portion through which air can pass from one surface to the other surface is formed. A trouser tear strength in the vertical direction (MD) of the wheel protective film is 3 N or more; and a pressure-sensitive adhesive force of the wheel protective film (adherend: acrylic clear-coated panel, after a lapse of 48 hours under the condition of 23° C.×50% RH) is 4.9 N/25 mm or more at a tensile speed of 0.3 m/min., and 19.6 N/25 mm or less at a tensile speed of 30 m/min.

Abstract: The present invention provides a carrier material for a thin layer base material, which does not cause defects such as generation of wrinkles and scratches, and impossibility of shape retention even in the case of using a thin layer base material in processing step, transporting step or the like in the state of being bonded to a carrier material, and is also excellent in workability. Disclosed is a carrier material for a thin layer base material, including a support having a thickness of 50 to 150 ?m and formed from a polyester-based resin, and a pressure-sensitive adhesive layer formed on at least one surface of the support.

Abstract: Provided is a carrier tape for a foam material which exhibits satisfactory holding properties to a flexible foam material, exhibits satisfactory removability without causing fracture of the foam material, and has good peel properties upon picking up. The carrier tape for a foam material includes a substrate and, arranged on one side thereof, a pressure-sensitive adhesive layer. The carrier tape has a 180-degree peel strength of 0.15 N/20 mm or more at a tensile speed of 300 mm/min with respect to a foam (trade name “SCF100”, supplied by Nitto Denko Corporation). The carrier tape also has a 180-degree peel strength of 0.30 N/20 mm or less at a tensile speed of 10 m/min with respect to the foam (trade name “SCF100”, supplied by Nitto Denko Corporation).

Abstract: Disclosed is a protective film for an automotive wheel, including a base layer and a pressure-sensitive adhesive layer, wherein a trouser tear strength in the machine direction (MID) of the protective film is 3 N or more, and an adhesive force (adherend: a panel with an acrylic clear coating, after standing for 48 hours under the conditions of 23° C. and 50% RH) of the protective film is 4.9 N/25 mm or more at a peeling speed of 0.3 m/minute, and is 19.6 N/25 mm or less at a peeling speed of 30 m/minute.

Abstract: Provided is a protective film for an automotive wheel having excellent performances, which has excellent weatherability and can sufficiently prevent a decrease in an adhesive force and the like. The protective film for an automotive wheel is a protective film for an automotive wheel, including a base layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes a pressure-sensitive adhesive composition containing at least a (meth)acryl-based polymer and a crosslinking agent, the (meth)acryl-based polymer contains a (meth)acryl-based monomer having an alkyl group of 1 to 14 carbon atoms as a main component, and contains, as other monomer components, at least a hydroxyl group-containing monomer as a constituent component, the content of the crosslinking agent is from 0.1 to 6 parts by weight based on 100 parts by weight of the acryl-based polymer, and the pressure-sensitive adhesive layer has a gel fraction of 60 to 95% by weight.

Abstract: Provided is a protective film for an automotive wheel having excellent performances, which can sufficiently prevent scratching of the wheel surface and staining, and also the generation of rust at a disc brake inside the wheel during a period until delivery of an automobile; and can be easily peeled. The protective film for an automotive wheel of the present invention is a protective film for an automotive wheel, including a base layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer of the protective film is bonded onto the back surface of the base layer of the protective film, and an adhesive force to the back surface after storage at 50° C. for 24 hours in an state of being bonded is from 0.1 to 2 N/20 mm at any peeling speed of 0.3 m/minute, 10 m/minute and 30 m/minute.

Abstract: Provided is a surface protective film that not only maintains its adhesion for an adherend but also shows a small change over time in rewinding force even when stored in a roll shape. The surface protective film of the present invention includes: a back surface layer; a base material layer; and a pressure-sensitive adhesive layer in the stated order, in which: the surface of the back surface layer has a ten-point average surface roughness Rz of 1.0 or more; a rewinding force A after storage at 23° C. is 1.0 N/20 mm or less; and a ratio B/A of a rewinding force B after storage at 50° C. to the rewinding force A after the storage at 23° C. is 1.0 to 2.0.

Abstract: Provided is the following base material for a surface protective sheet. The slipping property of the back surface of the sheet is moderately excellent, and scratches in the surface of an adherend laminated to contact the back surface of the sheet can be suppressed. Also provided is a surface protective sheet containing such base material for a surface protective sheet. The base material for a surface protective sheet of the present invention is a base material for a surface protective sheet including a base material layer (A), in which: at least one surface of the base material for a surface protective sheet is the surface of the base material layer (A); the base material layer (A) contains a polyolefin-based resin as a main component; the base material layer (A) contains polymer fine particles having an average particle diameter of 3 to 20 ?m at a content of 0.

Abstract: Provided are a laminated film and a pressure-sensitive adhesive tape each of which is adjusted so as to be capable of achieving compatibility between low haze property excellent in transparency and such large surface roughness that foreign matter such as a fish eye is hardly observed without fluctuations in mechanical properties of the entire laminated film or pressure-sensitive adhesive tape. Also provided is such a pressure-sensitive adhesive tape as described below capable of protecting the uneven surface of a member having unevenness on its surface. The pressure-sensitive adhesive tape brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the member.

Abstract: Provided is such a pressure-sensitive adhesive tape as described below, which is capable of protecting the uneven surface of a member having unevenness on its surface. The pressure-sensitive adhesive tape brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the member. In addition, even upon deformation of the member protected with the pressure-sensitive adhesive tape by, for example, lamination or continuous winding, the uneven shape does not deform and a base material layer in the pressure-sensitive adhesive tape is not damaged. Also provided is a pressure-sensitive adhesive tape useful as such a surface protective film for a prism sheet as described below, which is capable of effectively protecting, for example, a lens surface of a prism sheet having multiple triangle pole-shaped prisms fixed on its surface. The surface protective film brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the prism sheet.

Abstract: Provided are a laminated film and a pressure-sensitive adhesive tape in each of which a haze value and surface roughness are adjusted without fluctuations in mechanical properties of the entire laminated film or pressure-sensitive adhesive tape. The laminated film of the present invention is a laminated film including a base material layer and a surface layer, in which the base material layer contains a thermoplastic resin, the surface layer has an arithmetic average surface roughness Ra of 0.5 ?m to 2.0 ?m, and the laminated film has a haze value of 13.5% to 80%.

Abstract: Provided is a laminated film and a pressure-sensitive adhesive tape in each of which a difference between an image clarity in a lengthwise direction and an image clarity in a widthwise direction is small and hence the distortion of transmitted light is small, and desired mechanical properties are substantially free of reduction. The laminated film of the present invention is a laminated film including a base material layer, and a surface layer, in which the base material layer contains a thermoplastic resin, and the absolute value of a difference between an image clarity in the lengthwise direction of the laminated film and an image clarity in the widthwise direction of the laminated film is 10% or less.

Abstract: The object of the present invention is provision of a surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face, which can protect the surface of an application object, and does not allow easy development of a dross during laser cutting processing. According to the present invention, a surface protection sheet 1 for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face 2a of a workpiece 2 during a cutting process by irradiation of a laser beam 6 on the workpiece 2 is provided, which contains a substrate layer and an adhesive layer formed on one surface of the substrate layer, wherein the substrate layer is made of a resin material having a melt viscosity measured based on JIS K7199 (1999) at 290° C. of not more than 200 Pa·s, and has a thickness of 0.01-0.12 mm.

Abstract: A surface protection sheet including a base layer and a pressure-sensitive adhesive layer which have been formed by coextrusion. The surface protection sheet has satisfactory suitability for unwinding from a roll, etc., and the pressure-sensitive adhesive layer has a smooth surface and satisfactory adhesion to rough surfaces, is free from release ingredient transfer thereto, and hence poses no problem concerning contamination. The surface protection sheet comprises: a base layer comprising a thermoplastic resin; a pressure-sensitive adhesive layer formed on one side of the base layer; and a back treatment layer formed on the other side and comprising a polyethylene resin. The surface protection sheet is characterized in that the base layer, pressure-sensitive adhesive layer, and back treatment layer have been integrally formed by coextrusion molding and the pressure-sensitive adhesive layer contains a noncrystalline polyolefin elastomer in an amount of 50 wt. % or larger.