THERMALLY CONDUCTIVE POLYSILOXANE COMPOSITION

    公开(公告)号:EP3992250A1

    公开(公告)日:2022-05-04

    申请号:EP20831003.7

    申请日:2020-06-24

    IPC分类号: C08L83/04 C08L83/05 C08K3/28

    摘要: The present invention provides a thermally conductive polysiloxane composition which has a high thermal conductivity, while having excellent work efficiency due to high ejection properties. A thermally conductive polysiloxane composition which contains (A) a thermally conductive filler and (B) one or more compounds selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane, wherein: component (A) comprises (A-1) round, indefinite-shaped or polyhedral aluminum nitride particles having an average particle diameter of from 50 µm to 150 µm and (A-2) round, indefinite-shaped or polyhedral aluminum nitride particles having an average particle diameter of 10 µm or more but less than 50 µm in an amount of from 20% by mass to 100% by mass relative to the total amount of component (A); and the content ratio of component (A-1) to component (A-2) is from 50:50 to 95:5 on a mass basis.

    AQUEOUS COATING AGENT COMPOSITION
    4.
    发明公开

    公开(公告)号:EP3988625A1

    公开(公告)日:2022-04-27

    申请号:EP20825781.6

    申请日:2020-06-18

    发明人: KIMURA Masanori

    摘要: There is provided an aqueous coating agent composition that does not contain an organotin compound and forms a coating film having good slipperiness and having excellent adhesiveness (adhesion) and abrasion resistance. The aqueous coating agent composition contains: (A) polydiorganosiloxane having both terminals blocked with hydroxyl groups, the polydiorganosiloxane having a viscosity of 50 to 100,000,000 mPa•s (at 25°C); (B) polyorganohydrogensiloxane having at least three hydrogen atoms in one molecule; (C) a zinc compound as a curing catalyst; (D) an organic compound and/or polyorganosiloxane having at least one of a primary amino group and a secondary amino group; (E) an adhesion improving component; and (F) spherical particles.

    FLAME-RETARDANT POLYORGANOSILOXANE COMPOSITION, FLAME-RETARDANT CURED PRODUCT, AND OPTICAL MEMBER

    公开(公告)号:EP3808817A1

    公开(公告)日:2021-04-21

    申请号:EP19819858.2

    申请日:2019-06-11

    摘要: To provide a polyorganosiloxane composition whose cured product has uniform good flame retardancy and good physical properties with less discoloring, for example, yellowing, and which has excellent temporal stability when stored. A flame-retardant polyorganosiloxane composition contains: (A) straight-chain polyalkylsiloxane having two or more alkenyl groups in one molecule and having a 10,000 to 1,000,000 mPa·s viscosity (25°C); (B) resinoid polyorganosiloxane containing a Q unit and having 1.5 or more alkenyl groups on average, mass% of the component (B) being 30 to 80 mass% of the total of the components (A), (B); (C) polyorganohydrogensiloxane having three or more Si-H, an amount of the component (C) being such that Si-H/(total of the alkenyl groups in the components (A), (B)) becomes 1.0 to 3.0 moles; and (D) a catalytic amount of a hydrosilylation reaction catalyst, wherein the total content of phosphorus and an alkali metal is 20 mass ppm or less.

    RESIN COMPOSITION FOR ELECTRICAL/ELECTRONIC COMPONENTS
    7.
    发明公开
    RESIN COMPOSITION FOR ELECTRICAL/ELECTRONIC COMPONENTS 审中-公开
    电气/电子元件用树脂组合物

    公开(公告)号:EP3281985A1

    公开(公告)日:2018-02-14

    申请号:EP16776499.2

    申请日:2016-04-04

    发明人: ONO, Kazuhisa

    摘要: The present invention relates to a resin composition for electric/electronic components, comprising: (A) a polyorganosiloxane that contains a mercaptoalkyl group bonded to a silicon atom and has a viscosity at 23°C of 20 to 3,000 cP; (B) a polyorganosiloxane containing an aliphatic unsaturated group wherein the polyorganosiloxane (B) includes: (B1) a linear polyorganosiloxane represented by the formula (I) and optionally (B2) a branched polyorganosiloxane including a SiO 4/2 unit, an R' 3 SiO 1/2 unit and an R' 2 SiO 2/2 unit, and optionally further an R'SiO 3/2 unit wherein at least three R' groups per molecule of the branched polyorganosiloxane (B2) are aliphatic unsaturated groups; (C) a photoreaction initiator; (D) a chemically surface-treated silica having a BET specific surface area of 50 to 250 m 2 /g and a pH of 5.0 to 9.0; and (E) a polyoxyalkylene glycol in which an alkylene unit is a linear or branched alkylene group having 2 to 4 carbon atoms, and/or a derivative of the polyoxyalkylene glycol, wherein the ratio of the number of mercaptoalkyl groups in (A) to the total number of aliphatic unsaturated groups in (B) is 0.45 to 2.00, the content of (D) is 0.5 to 26 parts by mass relative to 100 parts by mass of (B), the proportion of the content of (E) is 0.001 to 1.0 mass% relative to the total mass of (A) to (E), and the viscosity at 23°C is 500 to 100,000 cP.

    摘要翻译: 本发明涉及一种电气电子部件用树脂组合物,其包含:(A)含有与硅原子键合的巯基烷基且在23℃下的粘度为20〜3000cP的聚有机硅氧烷; (B)含有脂肪族不饱和基团的聚有机硅氧烷,其中聚有机硅氧烷(B)包括:(B1)由式(I)表示的线性聚有机硅氧烷和任选地(B2)包含SiO 4/2单元的支化聚有机硅氧烷,R'3 SiO 1/2 / 2单元和R'2SiO2 / 2单元,并且可选地还有R'SiO3 / 2单元,其中每个分支聚有机硅氧烷(B2)的至少三个R'基团是脂族不饱和基团; (C)光反应引发剂; (D)BET比表面积为50〜250m 2 / g,pH为5.0〜9.0的化学表面处理二氧化硅; 和(E)其中亚烷基单元是具有2至4个碳原子的直链或支链亚烷基的聚氧亚烷基二醇和/或聚氧亚烷基二醇的衍生物,其中(A)中的巯基烷基数与 (B)中的脂肪族不饱和基团的总数为0.45〜2.00,(D)的含量相对于(B)100质量份为0.5〜26质量份,(E)的含量的比例为 (A)〜(E)的总质量为0.001〜1.0质量%,23℃时的粘度为500〜100,000cP。

    POLYORGANOSILOXANE COMPOSITION FOR MOLDING, OPTICAL MEMBER, LENS OR COVER FOR LIGHT SOURCE, AND MOLDING METHOD
    8.
    发明公开
    POLYORGANOSILOXANE COMPOSITION FOR MOLDING, OPTICAL MEMBER, LENS OR COVER FOR LIGHT SOURCE, AND MOLDING METHOD 审中-公开
    用于成型的聚硅氧烷组合物,光学构件,用于光源的透镜或盖,以及成型方法

    公开(公告)号:EP3235873A1

    公开(公告)日:2017-10-25

    申请号:EP15870083.1

    申请日:2015-12-18

    摘要: A polyorganosiloxane composition for molding includes: (A) a straight-chain polyorganosiloxane having two or more alkenyl groups and having a viscosity (25°C) of 10,000 to 500,000 mPa·s; (B) 30 to 80 mass% of a resinoid polyorganosiloxane including M, D, and Q units, at a molar ratio of a:b:c, on average (0.3 ≤ a ≤ 0.6, 0 ≤ b ≤ 0.1, 0.4 ≤ c ≤ 0.7, and a + b + c = 1), and having two or more alkenyl groups; (C) an amount of a polyorganohydrogensiloxane having Si-bonded hydrogen atoms, an average degree of polymerization of 10 or more, a content of the Si-bonded hydrogen atoms of 5.0 mmol/g or more and 11.0 mmol/g or less, and a mass decrease rate up to 140°C by TGA of 2.0 mass% or less so that an amount of the (Si-bonded hydrogen atoms/alkenyl groups) is 1.0 to 3.0 mol; and (D) a hydrosilylation reaction catalyst. A cured product excellent in mold release property is obtained and contamination of a metal mold is prevented.

    摘要翻译: 用于模塑的聚有机硅氧烷组合物包括:(A)具有两个或更多个烯基并具有10,000至500,000mPa·s的粘度(25℃)的直链聚有机硅氧烷; (B)以摩尔比a:b:c计,包含M,D和Q单元的30〜80质量%的树脂状聚有机硅氧烷平均(0.3≤a≤0.6,0≤b≤0.1,0.4≤c ≤0.7,且a + b + c = 1),并且具有两个或更多个烯基; (C)具有Si键合的氢原子,平均聚合度为10以上,Si键合的氢原子的含量为5.0mmol / g以上且11.0mmol / g以下的聚有机氢硅氧烷的量,以及 (Si键合的氢原子/烯基)的量为1.0质量%以上且3.0mol以下的情况下,通过TGA达到140质量%的质量减少率为2.0质量%以下, 和(D)氢化硅烷化反应催化剂。 得到脱模性优异的固化物,防止金属模的污染。

    DAM MATERIAL COMPOSITION FOR IMAGE DISPLAY DEVICE AND IMAGE DISPLAY DEVICE USING SAME
    9.
    发明授权
    DAM MATERIAL COMPOSITION FOR IMAGE DISPLAY DEVICE AND IMAGE DISPLAY DEVICE USING SAME 有权
    图像显示装置的DAM材料组合物和使用该装置的图像显示装置

    公开(公告)号:EP2860223B1

    公开(公告)日:2017-08-16

    申请号:EP14795317.8

    申请日:2014-03-28

    摘要: The invention provides dam compositions which can give cured products serving as dam materials exhibiting appropriate hardness and adhesion with respect to adherends and which are preferably such that the dam materials also have inconspicuous joints with fillers. The invention also provides image displays manufactured with the compositions. An image display sealant dam composition includes (A) a polyorganosiloxane having a mercaptoalkyl group bonded to a silicon atom, and having a viscosity at 23°C of 20 to 25000 cP; (B) an aliphatic unsaturated group-containing polyorganosiloxane including an aliphatic unsaturated group-containing linear polyorganosiloxane (B1) represented by Formula (I) and optionally further including a branched polyorganosiloxane (B2) having SiO 4/2 units, R' 3 SiO 1/2 units and R' 2 SiO 2/2 units, and optionally further having R'SiO 3/2 units, at least three R' groups per molecule of the branched polyorganosiloxane (B2) are aliphatic unsaturated groups; (C) a photoreaction initiator; (D) an aliphatic unsaturated group-containing silane compound; and (E) a fumed silica having a BET specific surface area of 180 to 500 m 2 /g. In the composition, the ratio of the number of the mercaptoalkyl groups present in (A) to the total number of the aliphatic unsaturated groups in (B) and (D) is 0.45 to 1.50; the amount of (E) is 0.5 to 24 parts by weight per 100 parts by weight of (B); and the composition has a viscosity at 23°C of 20,000 to 10,000,000 cP. An image display includes an image display component and a protective component sealed with the composition.

    摘要翻译: 本发明提供了能够提供作为坝材料的固化产物的坝组合物,该坝材料对被粘物表现出适当的硬度和粘附性,并且优选使得坝材料与填料具有不显眼的接合。 本发明还提供用该组合物制造的图像显示器。 本发明提供一种图像显示用密封剂组合物,其包含:(A)具有与硅原子键合的巯基烷基的聚有机硅氧烷,其在23℃下的粘度为20〜25000cP; (B)含有脂肪族不饱和基团的聚有机硅氧烷,其包含由式(I)表示的含脂肪族不饱和基团的线性聚有机硅氧烷(B1),并且任选地还包含具有SiO 4/2单元的支化聚有机硅氧烷(B2),R'3 SiO 1 / 2单元和R'2 SiO 2/2单元,并且任选地还具有R'SiO 3/2单元,每个分支聚有机硅氧烷(B2)的分子至少三个R'基团是脂族不饱和基团; (C)光反应引发剂; (D)含脂肪族不饱和基团的硅烷化合物; 和(E)BET比表面积为180-500m 2 / g的热解法二氧化硅。 在该组合物中,(A)中存在的巯基烷基的数量相对于(B)和(D)中的脂肪族不饱和基团的总数的比例为0.45至1.50; (E)的量为每100重量份(B)0.5至24重量份; 并且该组合物在23℃下的粘度为20,000至10,000,000cP。 图像显示器包括图像显示部件和用组合物密封的保护部件。

    ROOM-TEMPERATURE-CURABLE POLYORGANOSILOXANE COMPOSITION
    10.
    发明授权
    ROOM-TEMPERATURE-CURABLE POLYORGANOSILOXANE COMPOSITION 有权
    可室温固化的聚硅氧烷组合物

    公开(公告)号:EP2708579B1

    公开(公告)日:2016-04-27

    申请号:EP12786117.7

    申请日:2012-05-10

    摘要: A room temperature-curable polyorganosiloxane composition is a two component-type room temperature-curable polyorganosiloxane composition including (A) a base composition and (B) a cross-linking agent composition. The component (A) contains (a1) polyorganosiloxane having a hydroxyl group or an alkoxy group at a molecular end and (a2) an inorganic filler. The component (B) includes (b1) an organosilicon compound having three or more hydrolyzable groups in one molecule, (b2) polyorganosiloxane having an alkoxy group at a molecular end and represented by the following general formula and, and (b3) a curing catalyst. In the two component-type room temperature-curable polyorganosiloxane composition, it is possible to appropriately adjust a compounding ratio of the base component and the cross-linking component according to the use of an automatic mixer/discharger or the like without deteriorating properties such as deep-part curability, curing uniformity, and storage stability.

    摘要翻译: 室温固化性聚有机硅氧烷组合物是包含(A)基础组合物和(B)交联剂组合物的双组分型室温固化型聚有机硅氧烷组合物。 组分(A)含有(a1)分子末端具有羟基或烷氧基的聚有机硅氧烷,(a2)无机填料。 组分(B)包括(b1)在一个分子中具有三个或更多个可水解基团的有机硅化合物,(b2)在分子末端具有烷氧基并由以下通式表示的聚有机硅氧烷,和(b3)固化催化剂 。 在双组分型室温固化型聚有机硅氧烷组合物中,可以根据使用自动混合器/放电机等适当地调整基础成分和交联成分的配合比例,而不会劣化诸如 深部固化性,固化均匀性和储存稳定性。