Abstract:
PROBLEM TO BE SOLVED: To provide a thermosetting adhesive tape or sheet which is good in stability with time of a thermosetting adhesive layer and also does not substantially use a silicone material.SOLUTION: The thermosetting adhesive tape or sheet includes a structure in which both sides of a thermosetting adhesive layer made from a thermosetting adhesive composition, which is composed of an acrylic polymer (X) containing as a monomer component at least a (meth)acrylic acid alkyl ester (a) with a 2 to 14C alkyl group and a cyano-group containing monomer (b) and a phenolic resin (Y), are protected by a release liner substantially free from any silicone component, which has a release layer made from polyethylene with a specific weight of 0.910-0.940.
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive label for a hard disk drive achieving all of an information display function, an air-tightness keeping function, and a noise reducing function for reducing noise generated in driving a hard disk drive. SOLUTION: The adhesive label for a hard disk drive has an adhesive layer on one side of a substrate. When the adhesive label is stuck to the outside surface of a casing of the hard disk drive, noise generated in driving the hard disk drive can be reduced. The adhesive label has a surface density of 0.18 (kg/m 2 ) or more. The substrate of the adhesive label may comprise a metal foil laminated with a resin film layer on each side. A preferable thickness of the metal foil constituting the substrate is 5 μm or more. A preferable resin film constituting the substrate is a polyethylene terephthalate film. The adhesive layer of the adhesive label may use no silicone-based removing agent as a removing agent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a thermosetting pressure-sensitive adhesive composition which can exhibit good tackiness before curing and can exhibit excellent adhesion and heat resistance after curing by heating. SOLUTION: The thermosetting pressure-sensitive adhesive composition comprises 100 pts. wt acrylic polymer (X) containing, as monomer components, 60-75 wt.%, based on the total amount of the monomer components, alkyl (meth)acrylate (a) whose alkyl group has 2-14 carbon atoms, 20-35 wt.%, based on the total amount of the monomer components, cyano group-containing monomer (b), and 0.5-10 wt.%, based on the total amount of the monomer components, carboxy group-containing monomer (c) and 1-20 pts. wt. phenol based resol type phenolic resin (Y) represented by formula (1) (wherein R 1 is -CH 2 - or -CH 2 -O-CH 2 -; n is a positive integer; and m is an integer of 1-4). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain an adhesive label for a hard disk drive which can prevent damage of the hard disk drive by separation electrification at separation of a separating liner. SOLUTION: An adhesive label for a hard disk drive has an information indication part on one side of a base material and an adhesive layer on the other side which can reduce a generation sound at driving of the hard disk drive by sticking on the outside surface of a container of the hard disk drive where the adhesive layer is covered with a separation liner having an antistatic function. The separation liner having an antistatic function may have a constitution forming an antistatic treatment layer on at least one surface of the base material, for example, including a constitution such as an antistatic treatment layer/a base material or a base material/an antistatic treatment layer/a base material. The antistatic treatment layer may be formed by metallic foil or a metallic vapor deposition film.
Abstract:
PROBLEM TO BE SOLVED: To obtain a pressure-sensitive adhesive composition for attaching functional films which easily and inexpensively realizes an excellent contrast and an inhibition of optical halation, even on flat screens, and a pressure- sensitive adhesive sheet for attaching functional films. SOLUTION: This pressure-sensitive adhesive composition for attaching and fixing a functional film onto the image-displaying surface of an image display device, contains a pressure-sensitive adhesive and a black pigment having an average particle size of 0.5 μm or smaller. A pressure-sensitive adhesive sheet 1 is for attaching and fixing a functional film onto the image-displaying surface of an image display device, wherein a pressure-sensitive adhesive layer 3 composing the pressure-sensitive adhesive sheet comprises a pressure-sensitive adhesive composition containing a pressure-sensitive adhesive and a black pigment having an average particle size of 0.5 μm or smaller. Here, the visible light transmission of the pressure-sensitive adhesive layer is from 10 to 90%, and the haze value is 15% or smaller.
Abstract:
PROBLEM TO BE SOLVED: To efficiently suppress a rise in the temperature of a display plate and prevent a failure, and to make a cooling air discharge fan small-sized and lightweight or eliminate the need for it by adhering and fixing a transparent protection plate to the view side of a light emission display plate across spacers formed of heat-conductive adhesive layers. SOLUTION: On the view side of the light emission display plate 3, the transparent protection plate 1 is adhered and fixed across the spacers 2 formed of heat-conductive adhesive layers. On the view back side or flank side of the light emission display plate 3, heat radiation plates 5 and 8 are adhered and fixed across heat-conductive adhesive layers 4 and 7. The light emission display plate 3 uses a plasma type or a light emission diode type which attains the purpose of display with self-emitted light. For the heat-conductive adhesive layers forming the spacers 2, an adhesive material based upon rubber, acryl, etc., is used. The transparent protection plate 1 is formed of a transparent material such as transparent resin and glass and radiates heat transmitted through the spacers 2 to the outside. The plates 5 and 8 radiate heat accumulated in the light emission display plate 3 to suppress a rise in the temperature in the device.
Abstract:
PROBLEM TO BE SOLVED: To obtain an adhesive sheet which can be applied at low pressure, resists to peeling, can easily re-released and exhibits retentivity of adhesion and seal by forming a superposed layer comprising a combination of pressure-sensitive adhesive layers having different stress relaxation times on a support in such a manner that the pressure-sensitive layer having the longest stress relaxation time constitutes the outermost layer. SOLUTION: As shown in Fig. a superposed layer comprising pressure-sensitive layers is formed on a support 1. The layer 1 consists of pressure-sensitive adhesive layers 11 and 12. A release coat layer 21 is optionally formed. The superposed layer is made of pressure-sensitive adhesive layers having different stress relaxation times, and suitable pressure-sensitive adhesive is used to form it. Although the kinds of the adhesives are not particularly limited, pressure-sensitive rubber adhesives and pressure-sensitive acrylic adhesives are generally used. From the viewpoints of pressure- sensitive adhesiveness, the difference between the stress relaxation time of the outermost pressure-sensitive adhesive layer and that of the penultimate pressure-sensitive adhesive layer should be 10sec. or longer. The thickness of the superposed layer should be 500μm or below, and the thickness of the outermost pressure-sensitive adhesive layer should be 0.05-10 times as large as the entire thickness of the other pressure- sensitive adhesive layers.
Abstract:
PURPOSE: To obtain a liquid crystal display device with which the exchange of a tablet plate by peeling is easy, long-term adhesiveness is excellent, the degradation in transparency and visibility by the occurrence of air bubbles is prevented over a long period of time, the light reflection loss at the boundary is less, the visibility is excellent and input with hand writing is possible in a system of not interposing an air layer between a liquid crystal display panel and the tablet plate. CONSTITUTION: The liquid crystal display device which has the easy peelability of the tablet plate and allows input by hand writing is constituted by arranging the tablet plate 1 in tight contact with the viewing side of the liquid crystal display panel 3 via a transparent resin sheet 2 having a buffer characteristic and weak adhesiveness. Thereby, the liquid crystal display panel 3 and the tablet plate 1 are brought into tight contact with each other stably over a long period of time via the transparent resin sheet 2 having the buffer characteristic and weak adhesiveness.
Abstract:
PROBLEM TO BE SOLVED: To provide a double face self-adhesive sheet for fixation of a hard disk drive component which has low contamination because of being silicone-free, excellent outgas suppressing property and excellent workability, to provide the double face self-adhesive sheet for fixation of the hard disk drive component which also has excellent step following property and excellent suppressing property of the lifting from a body to be stuck in working after pasting and the hard disk drive using the double fase self-adhesive sheet. SOLUTION: The double face self-adhesive sheet for fixation of the hard disk drive component is constituted of an adhesive body part on which adhesive agent layers are formed on both surfaces of a plastic film base material having ≤20 μm thickness and non-silicone-based releasing liners provided on both side surfaces of the self-adhesive body part. The thickness of the self-adhesive body part is ≤60 μm and the quantity of the outgas after being heated at 120°C for 10 min is ≤1 μg/cm 2 . COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation:解决问题的方案为了提供一种用于固定由于无硅酮而具有低污染性的硬盘驱动部件的双面自粘片材,具有优异的脱气抑制性和优异的可加工性,以提供双面自我 用于固定硬盘驱动部件的粘合片,其也具有优异的跟随性,并且在粘贴之后被卡住的身体的提升和使用双层自粘合片的硬盘驱动器具有优异的抑制性。 解决方案:用于固定硬盘驱动部件的双面自粘合片由粘合剂体部分构成,粘合剂层在其厚度≤20μm的塑料膜基材的两个表面上形成有粘合剂层, 设置在自粘体主体部的两侧面的硅酮类剥离衬垫。 自粘体部的厚度为≤60μm,在120℃下加热10分钟后的排出气体量为≤1μg/ cm 2。 版权所有(C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive sheet excellent in transparency and usable for a display. SOLUTION: This pressure-sensitive adhesive sheet has a layer of a pressure-sensitive adhesive on a mold release treatment film having good surface smoothness, center line average roughness Ra of 0.2 μm or less and maximum height Rmax of 0.6 μm or less, and the pressure-sensitive adhesive has a haze value of 1% or less and total light transmittance of 90% or more. In particular, the layer of the pressure-sensitive adhesive is formed of photopolymerized compounds. The photopolymerized compounds constitute 70-100 wt.% of (meth)acrylic acid ester with a 2-14C alkyl group, 30-0 wt.% of monoethylenically unsaturated monomer copolymerizable with the ester, and a photopolymerization initiator. COPYRIGHT: (C)2009,JPO&INPIT