摘要:
The present invention relates to a pressure-sensitive adhesive sheet for dicing, which comprises a substrate and at least one pressure-sensitive adhesive layer disposed on at least one surface of the substrate, the substrate containing polyvinyl chloride as a primary component and a trialkyl phosphite as a thermal stabilizer of the polyvinyl chloride, and the pressure-sensitive adhesive layer containing poly(meth)acrylic acid ester as a primary component, in which the trialkyl phosphite transited from the substrate into the pressure-sensitive adhesive layer is not unevenly distributed on a surface of the pressure-sensitive adhesive layer; a method of processing a processed material using the same, and a piece of a processed material obtainable by the method.
摘要:
Provided are a UV-curable pressure-sensitive adhesive composition comprising a photoinitiator which has a molar absorptivity at 365 nm of at least 1,000 mol -1 ·cm -1 and the maximum absorption wavelength of at least 420 nm on a long wavelength side; and an adhesive sheet having a layer of the composition disposed over a photo-transmitting base film. The pressure-sensitive adhesive sheet according to the invention can be cured even by exposure to ultraviolet rays at a low intensity or for short time so that it can contribute to energy saving and productivity improvement as a sheet for processing, fixation or surface protection of a semiconductor wafer.
摘要:
The present invention intends to provide a pressure-sensitive adhesive sheet for dicing which inhibits the generation of fibrous scraps and has good expandability. The present invention relates to a pressure-sensitive adhesive sheet for dicing, which includes a base material and at least one pressure-sensitive adhesive layer disposed on at least one surface the base material, in which the base material contains a polymer having a random copolymer block, and the random copolymer block contains a block (I) containing, as a main constitutional unit, a constitutional unit represented by the following structural formula (A): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ -(CH 2 -CH 2 -CH 2 -CH 2 )-€ƒ€ƒ€ƒ€ƒ€ƒ(A) and a block (II) containing, as a main constitutional unit, a constitutional unit represented by the following structural formula (B):
摘要:
The present invention intends to provide a pressure-sensitive adhesive sheet for dicing which inhibits the generation of fibrous scraps and has good expandability. The present invention relates to a pressure-sensitive adhesive sheet for dicing, which includes a base material and at least one pressure-sensitive adhesive layer disposed on at least one surface the base material, in which the base material contains a polymer having a random copolymer block, and the random copolymer block contains a block (I) containing, as a main constitutional unit, a constitutional unit represented by the following structural formula (A):
-(CH 2 -CH 2 -CH 2 -CH 2 )- (A)
and a block (II) containing, as a main constitutional unit, a constitutional unit represented by the following structural formula (B):
摘要:
Provided is a pressure-sensitive adhesive polarizing plate, including: a polarizer (P); a transparent protective film (E) provided on only one side of the polarizer (P) with an adhesive layer (G) interposed therebetween; a pressure-sensitive adhesive layer (B) provided on another side of the polarizer (P) with a protective layer (H) having a tensile modulus of 100 MPa or more interposed therebetween, wherein the protective layer (H) is made from a protective layer-forming agent (H') that is a cyanoacrylate-based layer-forming agent, an epoxy-based layer-forming agent, an isocyanate-based layer-forming agent, or an acryl-based layer-forming agent. The pressure-sensitive adhesive polarizing plate satisfies durability even under harsh environments at a low temperature and a high temperature.
摘要:
The present invention relates to a pressure-sensitive adhesive sheet for dicing, which comprises a substrate and at least one pressure-sensitive adhesive layer disposed on at least one surface of the substrate, the substrate containing polyvinyl chloride as a primary component and a trialkyl phosphite as a thermal stabilizer of the polyvinyl chloride, and the pressure-sensitive adhesive layer containing poly(meth)acrylic acid ester as a primary component, in which the trialkyl phosphite transited from the substrate into the pressure-sensitive adhesive layer is not unevenly distributed on a surface of the pressure-sensitive adhesive layer; a method of processing a processed material using the same, and a piece of a processed material obtainable by the method.
摘要:
Provided are a UV-curable pressure-sensitive adhesive composition comprising a photoinitiator which has a molar absorptivity at 365 nm of at least 1,000 mol -1 ·cm -1 and the maximum absorption wavelength of at least 420 nm on a long wavelength side; and an adhesive sheet having a layer of the composition disposed over a photo-transmitting base film. The pressure-sensitive adhesive sheet according to the invention can be cured even by exposure to ultraviolet rays at a low intensity or for short time so that it can contribute to energy saving and productivity improvement as a sheet for processing, fixation or surface protection of a semiconductor wafer.