Silicone-based composition
    31.
    发明公开
    Silicone-based composition 失效
    Siliconzusammensetzung

    公开(公告)号:EP0887383A2

    公开(公告)日:1998-12-30

    申请号:EP98304502.2

    申请日:1998-06-08

    IPC分类号: C08L83/04

    摘要: Provided by the invention is a silicone-based oil compound as a base of a defoaming agent of, for example, an emulsion type in an aqueous medium containing a surface active agent capable of exhibiting excellent sustainability of the defoaming activity and stability against dilution. The oil compound comprises (A) from 30 to 98.9% by weight of an α,ω-dihydroxy diorganopolysiloxane, (B) from 0.1 to 20% by weight of a poly(organohydroxy siloxane) such as 1,1,1,3,5,7,7,7-octamethyl-3,5-dihydroxy tetrasiloxane and (C) from 1 to 50% by weight of a finely divided silica powder having a specific surface area of at least 100 m 2 /g.

    摘要翻译: 本发明提供一种硅氧烷系油性化合物,作为含有表现活性剂的水性介质中的乳液型消泡剂的底物,该表面活性剂能够显示出优异的消泡活性的可持续性和对稀释的稳定性。 油化合物包含(A)30至98.9重量%的α,ω-二羟基二有机聚硅氧烷,(B)0.1至20重量%的聚(有机羟基硅氧烷)如1,1,1,3, 5,7,7,7-八甲基-3,5-二羟基四硅氧烷和(C)1至50重量%的比表面积为至少100m 2 / g的细碎二氧化硅粉末。

    Polypropylene resin composition
    33.
    发明公开
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:EP0516362A3

    公开(公告)日:1993-03-03

    申请号:EP92304729.4

    申请日:1992-05-26

    摘要: Disclosed is a novel polypropylene resin composition which is outstandingly free from surface tackiness and still has good transparency so as to be useful as a material of resin films used for wrapping. The resin composition comprises, as a uniform blend, (a) 100 parts by weight of a polypropylene resin, and (b) from 0.01 to 10 parts by weight of an inorganic oxide powder which is a product obtained by the deflagration of an inorganic oxidizable powder, e.g., an elementary silicon powder, in an oxidizing atmosphere such as air. By virtue of the unique method for the preparation of the silicon dioxide powder, the particles have high surface activity so that the surface properties of the resin composition or, in particular, resin films prepared therefrom can be greatly improved even with a relatively small amount of the inorganic oxide powder compounded as an anti-blocking agent not to badly affect the transparency.

    Silicone grease compositions used for assisting heat radiation
    34.
    发明公开
    Silicone grease compositions used for assisting heat radiation 失效
    Silikon-Schmierfettzusammensetzungen zurUnterstützungderWärmestrahlung。

    公开(公告)号:EP0481758A1

    公开(公告)日:1992-04-22

    申请号:EP91309533.7

    申请日:1991-10-16

    IPC分类号: C10M169/00 C10M169/02

    摘要: A grease composition used for assisting radiation of heat from electronic devices or machines comprises, by weight,
       (1) 100 parts of a photocurable organopolysiloxane having a viscosity at 25°C of 0.5 - 1000 m².s⁻¹ (50-100,000 cSt) and (i) represented by the general formula R¹ a R² b R³ c SiO (a+b+c))/2 where a , b and c are defined respectively by 0.01 n SH wherein n is 1 - 8 (preferably 3), R² is a monofunctional hydrocarbon group containing a C2-8 aliphatic unsaturated group (e.g. vinyl), and R³ is an optionally substituted (e.g. halogenated) monofunctional C1-18 hydrocarbon group and/or (ii) a combination of organopolysiloxanes each of said viscosity and one containing at least 2 mercaptoalkyl groups as defined for R¹ and another containing at least 2 monofunctional hydrocarbon groups as defined for R²,
       (2) 100-900 (preferably 150-400) parts of a thickener which is a powdered inorganic compound having good heat conductivity, e.g. ZnO, Al₂O₃, AlN, BN or SiC, and optionally
       (3) a curing accelerator or photosensitizer.
    The mixed composition readily cures in natural or artificial light. It is used to assist removal of heat generated in the use of electronic components used in electrical applicances, audio systems and industrial equipment; the grease which is squeezed or bled to the exterior is there photocured and does not soil the surrounding area.

    摘要翻译: 用于辅助来自电子设备或机器的辐射热的润滑脂组合物包括(1)100份在25℃下粘度为0.5-1000μm2的光固化性有机聚硅氧烷。 (50-100,000cSt)和(i)由通式R 1 aR 2 bR 3 cSiO(a + b + c))/ 2表示,其中a,b和c分别定义为0.01

    Film-forming agent
    36.
    发明公开
    Film-forming agent 失效
    成膜剂

    公开(公告)号:EP0381376A3

    公开(公告)日:1991-11-21

    申请号:EP90300786.2

    申请日:1990-01-25

    IPC分类号: A61K7/40 C09G1/12

    摘要: The film-forming agent of the invention is a blend of a silica organosol, of which the silica particles have a specified specific surface area and specified densities of surface groups including silanol groups, alkoxy groups and trimethyl silyl groups, and a diorganopolysiloxane of a specified viscosity terminated at each molecular chain end with a silanolic hydroxy group. The film-forming agent exhibits durable water repellency and is useful for example as a skin-care preparation for preventing chapping of hands of people having frequent contact with water.

    Organosilicon compounds
    38.
    发明公开
    Organosilicon compounds 失效
    有机硅化合物

    公开(公告)号:EP0388218A3

    公开(公告)日:1991-08-21

    申请号:EP90302832.2

    申请日:1990-03-16

    IPC分类号: C08G77/388 C07F7/10

    摘要: Novel organopolysiloxanes are represented by the general formula:
    where a lies in the range 1 ≦ a≦3 and b , 0.001 ≦ b ≦2,
    R¹ are identical or dissimilar monovalent saturated or unsaturated C₁_₃₀ hydrocarbon groups,
    R² is a monovalent organic group represented by (̵ CR³₂ CR³ (H)CR³₂ )̵R⁴, where R³ is H or a monovalent saturated C₁_₅ hydrocarbon group,
    R⁴ is a monovalent organic group represented by the formula:
    R⁵ being identical to said R¹ or a halogen atom, alkoxy group, carboxyl group , hydroxyl group or amino group , d is an integer from 0 to 4, and c from 0 to 3. The compounds have a high UV absorption coefficient, high solubility in silicone oils and are non-irritant; they are thus useful for medical and cosmetic preparations, and also as additives for plastics.

    摘要翻译: 新的有机聚硅氧烷由以下通式表示:其中a位于1

    Organosilicon compounds
    39.
    发明公开
    Organosilicon compounds 失效
    Organosiliciumverbindungen。

    公开(公告)号:EP0388218A2

    公开(公告)日:1990-09-19

    申请号:EP90302832.2

    申请日:1990-03-16

    IPC分类号: C08G77/388 C07F7/10

    摘要: Novel organopolysiloxanes are represented by the general formula:
    where a lies in the range 1 ≦ a≦3 and b , 0.001 ≦ b ≦2,
    R¹ are identical or dissimilar monovalent saturated or unsaturated C₁_₃₀ hydrocarbon groups,
    R² is a monovalent organic group represented by (̵ CR³₂ CR³ (H)CR³₂ )̵R⁴, where R³ is H or a monovalent saturated C₁_₅ hydrocarbon group,
    R⁴ is a monovalent organic group represented by the formula:
    R⁵ being identical to said R¹ or a halogen atom, alkoxy group, carboxyl group , hydroxyl group or amino group ,
    d is an integer from 0 to 4, and c from 0 to 3.
    The compounds have a high UV absorption coefficient, high solubility in silicone oils and are non-irritant; they are thus useful for medical and cosmetic preparations, and also as additives for plastics.

    摘要翻译: 新的有机聚硅氧烷由以下通式表示:其中a位于1

    Oily paste composition
    40.
    发明公开
    Oily paste composition 失效
    ÖligePasten-Zusammensetzung。

    公开(公告)号:EP0383540A2

    公开(公告)日:1990-08-22

    申请号:EP90301507.1

    申请日:1990-02-13

    摘要: An oily paste composition comprising, as essential components, (I) a polymerization product obtained by addition polymerization of (A) an organohydrogenpolysiloxane containing in its molecule not less than 1.5 silicon-bonded hydrogen atoms on average and (B) an organopolysiloxane containing in its molecule not less than 1.5 silicon-bonded aliphatic unsaturated groups on average, and (II) a saturated hydrocarbon oil.
    The present composition is smooth to touch, free from stickiness, and excellent in transparency. It is useful for, for example, cosmetic or medical purpose.

    摘要翻译: 一种油性糊剂组合物,其包含作为必要成分的(I)通过(A)在其分子中含有不少于1.5个与硅键合的氢原子平均含有的有机氢聚硅氧烷的加成聚合获得的聚合产物,(B)含有其中的 分子平均不少于1.5个硅键合的脂族不饱和基团,和(II)饱和烃油。 本发明的组合物光滑,无粘性,透明性优异。 它可用于例如化妆品或医疗用途。