Thermosetting adhesive and adhesive sheet thereof
    2.
    发明授权
    Thermosetting adhesive and adhesive sheet thereof 有权
    热固性粘合剂及其粘合片

    公开(公告)号:US06261685B1

    公开(公告)日:2001-07-17

    申请号:US09400182

    申请日:1999-09-21

    IPC分类号: C09J702

    摘要: An adhesive sheet not tacky at ordinary temperatures, exhibiting strong adhesion and high heat resistance by heating under low pressure for a short period of time, having no problem of adhesive protrusion and excellent in storage stability, which comprises a base material having provided on one side or both sides thereof at least one layer of a thermosetting adhesive comprising (1) a non-tacky polymer of a monomer mixture comprising from 70% to 99% by weight of a (meth)acrylic ester represented by formula (I), a homopolymer of which has a glass transition temperature of −30° C. or more, and from 1% to 30% by weight of a monoethylenic unsaturated monomer being copolymerizable therewith and having a functional group capable of reacting with an epoxy resin each based on the monomer mixture and (2) from 5 parts to 30 parts by weight of the epoxy resin per 100 parts by weight of the monomer mixture, and not substantially comprising a curing agent for the epoxy resin:

    摘要翻译: 粘合片在常温下不发粘,表现出很强的附着力和耐低温性,在短时间内在低压下加热,没有粘接突出和存储稳定性优良的粘合片,它包括一侧设置的基材 或其两侧的至少一层热固性粘合剂,其包含(1)包含70重量%至99重量%的由式(I)表示的(甲基)丙烯酸酯的单体混合物的非粘性聚合物,均聚物 其玻璃化转变温度为-30℃以上,1重量%〜30重量%的可与其共聚的单烯属不饱和单体,具有能够与基于单体的环氧树脂反应的官能团 混合物和(2)每100重量份单体混合物5至30重量份的环氧树脂,并且基本上不包含用于环氧树脂的固化剂:

    Peelable heat-conductive and pressure-sensitive adhesive and adhesive sheet containing the same
    3.
    发明授权
    Peelable heat-conductive and pressure-sensitive adhesive and adhesive sheet containing the same 失效
    可剥离的导热和压敏粘合剂和含有它的粘合片

    公开(公告)号:US06207272B1

    公开(公告)日:2001-03-27

    申请号:US09079195

    申请日:1998-05-15

    IPC分类号: C09J702

    摘要: A peelable heat-conductive and pressure-sensitive adhesive is disclosed, which comprises: (a) 100 parts by weight of a polymer produced from a monomer mixture comprising from 70 to 100% by weight of one or more alkyl (meth)acrylates in which the alkyl groups on the average have 2 to 14 carbon atoms and from 0 to 30% by weight of one or more monoethylenic monomers copolymerizable therewith, each based on the amount of the monomer mixture; (b) from 20 to 400 parts by weight of a plasticizer having a boiling point of 150° C. or higher; and (c) from 10 to 1,000 parts by weight of a heat-conductive filler. Also disclosed is an adhesive sheet comprising a substrate and, formed on one or each side thereof, a layer of the adhesive. The pressure-sensitive adhesive can exhibit tight adhesion during use and easy peeling after use.

    摘要翻译: 公开了一种可剥离的导热和压敏粘合剂,其包括:(a)100重量份由包含70至100重量%的一种或多种(甲基)丙烯酸烷基酯的单体混合物制备的聚合物,其中 烷基平均具有2至14个碳原子和0至30重量%的一种或多种可与其共聚的单烯属单体,各自基于单体混合物的量; (b)20〜400重量份的沸点为150℃以上的增塑剂; 和(c)10〜1,000重量份的导热填料。 还公开了一种粘合片,其包括基底,并且在其一侧或两侧上形成粘合剂层。 压敏粘合剂在使用过程中表现出紧密的粘合性,使用后容易剥离。

    Double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board and wiring circuit board
    5.
    发明授权
    Double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board and wiring circuit board 失效
    用于布线电路板和布线电路板的双面压敏胶带或片

    公开(公告)号:US07927697B2

    公开(公告)日:2011-04-19

    申请号:US11783631

    申请日:2007-04-11

    IPC分类号: B32B7/12 B32B27/30

    摘要: The present invention relates to a double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board, which comprises a pressure-sensitive adhesive layer formed by a pressure-sensitive adhesive composition containing an acrylic polymer and a chain transfer substance, in which the pressure-sensitive adhesive layer has characteristics that a gel fraction in the initial stage is from 40 to 70% by weight, and a difference between a gel fraction (% by weight) of the pressure-sensitive adhesive layer after the following solder reflow step and the gel fraction (% by weight) of the pressure-sensitive adhesive layer in the initial stage is 10 or less. The solder reflow step satisfies the following heat treatment conditions. Surface temperature of the double-sided pressure-sensitive adhesive tape or sheet reaches 175±10° C. within 130 to 180 seconds, the surface temperature reaches 230±10° C. within 200 to 250 seconds, the surface temperature reaches 255±15° C. within 260 to 300 seconds and the solder reflow step finishes within 370 seconds after start of the solder reflow step for the double-sided pressure-sensitive adhesive tape or sheet.

    摘要翻译: 本发明涉及一种用于布线电路板的双面压敏粘合带或片,其包括由含有丙烯酸类聚合物和链转移物质的压敏粘合剂组合物形成的压敏粘合剂层,其中 压敏粘合剂层具有以下特征:初始阶段的凝胶分数为40〜70重量%,以下的回流焊步骤后的粘合剂层的凝胶分数(重量%)与第 初始阶段的粘合剂层的凝胶分数(重量%)为10以下。 回流焊步骤满足以下热处理条件。 表面温度在130〜180秒内达到175±10℃,表面温度在200〜250秒内达到230±10℃,表面温度达到255±15℃ 在260〜300秒钟内,并且焊料回流步骤在对双面压敏粘合带或片材进行的焊料回流步骤开始后的370秒内完成。

    Double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board and wiring circuit board
    6.
    发明申请
    Double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board and wiring circuit board 失效
    用于布线电路板和布线电路板的双面压敏胶带或片

    公开(公告)号:US20070237949A1

    公开(公告)日:2007-10-11

    申请号:US11783631

    申请日:2007-04-11

    IPC分类号: B32B3/00 B32B18/00 B32B7/12

    摘要: The present invention relates to a double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board, which comprises a pressure-sensitive adhesive layer formed by a pressure-sensitive adhesive composition containing an acrylic polymer and a chain transfer substance, in which the pressure-sensitive adhesive layer has characteristics that a gel fraction in the initial stage is from 40 to 70% by weight, and a difference between a gel fraction (% by weight) of the pressure-sensitive adhesive layer after the following solder reflow step and the gel fraction (% by weight) of the pressure-sensitive adhesive layer in the initial stage is 10 or less. The solder reflow step satisfies the following heat treatment conditions. Surface temperature of the double-sided pressure-sensitive adhesive tape or sheet reaches 175±10° C. within 130 to 180 seconds, the surface temperature reaches 230±10° C. within 200 to 250 seconds, the surface temperature reaches 255±15° C. within 260 to 300 seconds and the solder reflow step finishes within 370 seconds after start of the solder reflow step for the double-sided pressure-sensitive adhesive tape or sheet.

    摘要翻译: 本发明涉及一种用于布线电路板的双面压敏粘合带或片,其包括由含有丙烯酸类聚合物和链转移物质的压敏粘合剂组合物形成的压敏粘合剂层,其中 压敏粘合剂层具有以下特征:初始阶段的凝胶分数为40〜70重量%,以下的回流焊步骤后的粘合剂层的凝胶分数(重量%)与第 初始阶段的粘合剂层的凝胶分数(重量%)为10以下。 回流焊步骤满足以下热处理条件。 表面温度在130〜180秒内达到175±10℃,表面温度在200〜250秒内达到230±10℃,表面温度达到255±15℃ 在260〜300秒钟内,并且焊料回流步骤在对双面压敏粘合带或片材进行的焊料回流步骤开始后的370秒内完成。

    Release liner and pressure-sensitive adhesive tape or sheet employing the same
    9.
    发明申请
    Release liner and pressure-sensitive adhesive tape or sheet employing the same 有权
    剥离衬垫和使用其的压敏粘合带或片

    公开(公告)号:US20050266195A1

    公开(公告)日:2005-12-01

    申请号:US11129499

    申请日:2005-05-16

    IPC分类号: C09J7/02 B32B9/00

    摘要: The release liner includes a release layer constituted of at least one polyolefin resin, wherein the release layer has surface irregularities. The surface irregularities of the release layer may be constituted of recesses and protrusions which are irregularly different in shape and have been disposed in irregular arrangement. The release layer preferably has a surface roughness Ra of 1-3 μm. As the polyolefin resin constituting the release layer can be used at least one polyolefin resin selected from the group consisting of polyethylenes, polypropylene, polybutenes, poly(4-methyl-1-pentene), and copolymers of ethylene with one or more α-olefins having 3-10 carbon atoms.

    摘要翻译: 剥离衬垫包括由至少一种聚烯烃树脂构成的剥离层,其中剥离层具有表面凹凸。 剥离层的表面凹凸可以由形状不规则且凹凸不平的凹凸构成。 剥离层优选具有1-3μm的表面粗糙度Ra。 构成脱模层的聚烯烃树脂可以使用选自聚乙烯,聚丙烯,聚丁烯,聚(4-甲基-1-戊烯)中的至少一种聚烯烃树脂,以及乙烯与一种或多种α-烯烃的共聚物 具有3-10个碳原子。

    Photopolymerizable composition, pressure-sensitive flame-retardant adhesive, and adhesive sheets

    公开(公告)号:US06284368B1

    公开(公告)日:2001-09-04

    申请号:US09155075

    申请日:1998-09-21

    IPC分类号: C08F244

    摘要: Adhesive sheets using an acrylic pressure-sensitive flame-retardant adhesive having excellent properties such as adhesive force and holding power at high temperature and also having a self fire-extinguishing property which instantaneously extinguishes fire, i.e., a flame-retardance, are provided. A photopolymerizable composition comprising a) 100 parts by weight of a monomer (or the oligomer thereof) comprising 70 to 100% by weight of a (meth)acrylic acid alkyl ester having on the average a carbon number of 2 to 14 in the alkyl group and 30 to 0% by weight of a monoethylenically unsaturated monomer copolymerizable with the ester, b) 0.02 to 5 parts by weight of a polyfunctional (meth)acrylate as a crosslinking agent, c) 0.01 to 5 parts by weight of a photopolymerization initiator, and d) 10 to 180 parts by weight of a flame retardant having a melting point of at least 60° C. is prepared, a pressure-sensitive flame-retardant adhesive is prepared from the photopolymerized product of the composition, and the adhesive is formed on one or both surfaces of a substrate.