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公开(公告)号：EP4011995A1
公开(公告)日：2022-06-15
申请号：EP20851186.5
申请日：2020-03-19
IPC分类号： C09J5/00 , C09J11/06 , C09J201/00 , H01L21/301
摘要： A method for releasing an adherend of the present invention includes a first step and a second step. In the first step, a bonded product (100) including a pressure-sensitive adhesive layer (10), and an adherend (20) bonded thereto is prepared. The pressure-sensitive adhesive layer (10) includes a pressure-sensitive adhesive component and a gas generating agent. In the second step, a laser light (L) is irradiated to the pressure-sensitive adhesive layer (10)-side of the bonded product (100) to heat a part of the pressure-sensitive adhesive layer (10). A pressure-sensitive adhesive composition of the present invention is a composition used for forming the pressure-sensitive adhesive layer (10) in the method.
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公开(公告)号：EP3896134A1
公开(公告)日：2021-10-20
申请号：EP19895828.2
申请日：2019-12-09
IPC分类号： C09J11/04 , C09J11/06 , C09J201/00 , C09J7/38
摘要： A pressure-sensitive adhesive composition contains an adhesive component and gas-generative particles dispersed in the adhesive component. When the gas-generative particles are subjected to particle size distribution measurement, in the particle size distribution of the gas-generative particles, a cumulative particle size (D90) where a cumulative value from the smallest particle size is 90% based on volume is 10.0 µm or less.
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公开(公告)号：EP3896133A1
公开(公告)日：2021-10-20
申请号：EP19895149.3
申请日：2019-11-12
IPC分类号： C09J5/00 , C09J11/06 , C09J201/00 , C09J7/38
摘要： A pressure-sensitive adhesive composition includes a pressure-sensitive adhesive component and a gas generating particle dispersed in the pressure-sensitive adhesive component. A tensile elastic modulus at 25°C of the pressure-sensitive adhesive composition is 5 MPa or less. A gas generation amount at which the gas generating particle is generated in the pressure-sensitive adhesive composition is 5 mL/g or more in terms of decane at 0°C and 1013 hPa in a solid content of the pressure-sensitive adhesive composition.
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公开(公告)号：EP3266837B1
公开(公告)日：2019-09-11
申请号：EP16761699.4
申请日：2016-03-07
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公开(公告)号：EP4144811A1
公开(公告)日：2023-03-08
申请号：EP21795624.2
申请日：2021-03-22
IPC分类号： C09J7/38 , C09J11/06 , C09J201/00 , C09J133/06
摘要： Provided is a pressure-sensitive adhesive sheet that can temporarily fix an adherend in a peelable manner, the pressure-sensitive adhesive sheet being free from requiring high-output laser light irradiation at the time of the peeling of the adherend and being capable of eliminating the need for a step of washing the adherend after the peeling. The pressure-sensitive adhesive sheet of the present invention includes a pressure-sensitive adhesive layer containing a UV absorber and/or a photopolymerization initiator, wherein the pressure-sensitive adhesive sheet has a transmittance of 60% or less for light having a wavelength of 355 nm, and wherein the pressure-sensitive adhesive layer is a layer having an indentation elastic modulus at 23°C of 25 MPa after irradiation with UV light having an integrated light quantity of 300 mJ/cm 2 .
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公开(公告)号：EP4083155A1
公开(公告)日：2022-11-02
申请号：EP20907995.3
申请日：2020-12-10
IPC分类号： C09J11/04 , C09J11/06 , C09J201/00 , C09J201/02 , C09J7/38
摘要： Provided is a pressure-sensitive adhesive sheet that can temporarily fix an adherend in a peelable manner, the pressure-sensitive adhesive sheet being free from requiring the application of high-output laser light at the time of the peeling of the adherend and being capable of eliminating the need for a step of washing the adherend after the peeling. The pressure-sensitive adhesive sheet of the present invention includes a pressure-sensitive adhesive layer containing a UV absorber and an active energy ray-curable pressure-sensitive adhesive, wherein the pressure-sensitive adhesive sheet has a transmittance of 50% or less for light having a wavelength of 355 nm. In one embodiment, the pressure-sensitive adhesive layer has a thickness of 20 µm or less. In one embodiment, the pressure-sensitive adhesive sheet has a visible light transmittance of 50% or more.
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公开(公告)号：EP4011994A1
公开(公告)日：2022-06-15
申请号：EP20850384.7
申请日：2020-03-19
IPC分类号： C09J5/00 , C09J11/06 , C09J201/00 , H01L21/304 , H01L21/301
摘要： A method for releasing an adherend of the present invention includes a first step and a second step. In the first step, a bonded product (100) including a pressure-sensitive adhesive layer (10), and an adherend (20) bonded thereto is prepared. The pressure-sensitive adhesive layer (10) includes a pressure-sensitive adhesive component and a heat-expandable agent. In the second step, an energy ray (R) is irradiated from the pressure-sensitive adhesive layer (10)-side of the bonded product (100) toward the adherend (20). A transmittance of the energy ray (R) in the pressure-sensitive adhesive layer (10) is 60% or more. The pressure-sensitive adhesive composition of the present invention is a composition used for forming the pressure-sensitive adhesive layer (10) in the method.
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公开(公告)号：EP3266837A1
公开(公告)日：2018-01-10
申请号：EP16761699.4
申请日：2016-03-07
发明人： TANI, Kensuke , NAGATA, Mizuho , MIZOBATA, Kaori , SOGA, Masatsugu , MASUDA, Ryota , SATAKE, Masayuki , OKADA, Kenichi , KOSAKA, Naofumi , SHIMOKITA, Keisuke
摘要： Provided is an adhesive member to be adhesively fixed through pressure which has both position adjustability and adhesiveness and is capable of producing a sufficient adhesive strength in addition to the position adjustability. The adhesive member comprises a support, a pressure-sensitive adhesive layer provided on one surface of the support, and a plurality of protrusion elements arranged, in spaced-apart relation to each other, on a principal surface of the pressure-sensitive adhesive layer on a side opposite to the support. Each of the protrusion elements is composed of an aggregation of a plurality of cohesive particles, wherein the adhesive member has a frictional force of 0.4 N/cm 2 or less, with respect to a stainless steel plate serving as an adherend, as measured when the protrusion elements are in contact with a surface of the adherend, and a shear adhesive strength of 45 N/cm 2 or more.
摘要翻译： 本发明提供一种粘接部件，其通过既具有位置调整性又具有粘接性的压力进行粘接固定，并且除了位置调整性以外，还能够产生充分的粘接力。 粘合构件包括支撑体，设置在支撑体的一个表面上的压敏粘合剂层和多个突出元件，所述多个突出元件以相互隔开的关系设置在粘合剂层上的压敏粘合剂层的主表面上 与支撑件相对的一侧。 每个突起元件由多个粘性颗粒的聚集体组成，其中粘附构件相对于用作被粘物的不锈钢板具有0.4N / cm 2或更小的摩擦力， 元件与被粘物的表面接触，并且剪切粘合强度为45N / cm 2或更高。
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