Room temperature curable organopolysiloxane composition and cured
product of the same
    3.
    发明授权
    Room temperature curable organopolysiloxane composition and cured product of the same 失效
    室温可固化的有机聚硅氧烷组合物和固化产物相同

    公开(公告)号:US5314981A

    公开(公告)日:1994-05-24

    申请号:US37322

    申请日:1993-03-26

    IPC分类号: C08K5/54 C08L83/04 C08G77/24

    摘要: A room temperature curable organopolysiloxane composition comprising: (A) 100 parts by weight of a diorganopolysiloxane blocked by hydroxyl group at both terminal ends of its molecule, (B) from 0.5 to 30 parts by weight of an organosilicon compound having at least three silicon-bonded hydrolyzable groups in its molecule or a partially hydrolyzed product of the organosilicon compound, (C) from 0.1 to 15 parts by weight of an alkoxysilane having the following general formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are each an unsubstituted or substituted monovalent hydrocarbon group of from 1 to 8 carbon atoms, R.sup.3 is a divalent hydrocarbon group of from 1 to 8 carbon atoms which may contain an amide linkage (--CONH--) or ether oxygen linkage, Rf is a divalent perfluoroalkylene group or a divalent perfluoropolyether group, and n is an integer from 1 to 3, and a cured product of the composition. The composition and the cured product thereof ensure lessened contamination on surfaces of the cured product and in the surroundings, and permit easy removal of fungi, if any, from surfaces of the cured product.

    摘要翻译: 一种室温可固化的有机聚硅氧烷组合物,其包含:(A)100重量份在其分子的两个末端被羟基封端的二有机聚硅氧烷,(B)0.5至30重量份的具有至少三个硅 - 其分子中的键合可水解基团或有机硅化合物的部分水解产物,(C)0.1至15重量份具有以下通式(1)的烷氧基​​硅烷:其中R 1和R 2各自为 1至8个碳原子的未取代或取代的一价烃基,R 3是可含有酰胺键(-CONH-)或醚氧键的1至8个碳原子的二价烃基,Rf是二价全氟亚烷基 或二价全氟聚醚基,n为1〜3的整数,以及所述组合物的固化物。 组合物和其固化产物确保了固化产物表面和周围环境中污染物的减少,容易从固化产物的表面除去真菌(如果有的话)。

    Room temperature curable silicone composition
    5.
    发明授权
    Room temperature curable silicone composition 失效
    室温固化硅酮组合物

    公开(公告)号:US5326816A

    公开(公告)日:1994-07-05

    申请号:US893016

    申请日:1992-06-03

    CPC分类号: C08K5/54 C08K5/005 C08L83/14

    摘要: A room temperature curable silicone composition comprising(A) an organopolysilethylenesiloxane represented by the following general formula (1): ##STR1## wherein R.sup.1 to R.sup.4 each represent a monovalent hydrocarbon group having 1 to 10 carbon atoms, and n is an integer of 10 or over,(B) an organosilane or an organosiloxane having at least two hydrolyzable groups in the molecule, and(C) at least one ultraviolet absorbing agent and antioxidant. The cured product formed from this composition exhibits good soil resistance for a long period of time and soiling of the surface of the cured product and its surroundings due to dust or the like in the air can be obviated effectively.

    摘要翻译: 一种室温固化性有机硅组合物,其包含(A)由以下通式(1)表示的有机聚硅氧烷硅烷:其中R 1至R 4各自表示具有1至10个碳原子的一价烃基,n为整数10或 (B)分子中具有至少两个可水解基团的有机硅烷或有机硅氧烷,(C)至少一种紫外线吸收剂和抗氧化剂。 由该组合物形成的固化物长时间显示良好的耐污性,并且可以有效地消除由于空气中的灰尘等引起的固化产物及其周围环境的表面污染。

    Organosilicone-treated silica and a composition containing it
    8.
    发明授权
    Organosilicone-treated silica and a composition containing it 失效
    有机硅处理二氧化硅及其组合物

    公开(公告)号:US5200440A

    公开(公告)日:1993-04-06

    申请号:US606870

    申请日:1990-10-31

    摘要: An organosilicone-treated silica obtained by treating(A) a silica powder having a specific surface area of at least 50 m.sup.2 /g with(B) a triorgano(1-alkoxyvinyloxy)silane having the formula (I): ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group or an ether linkage-containing organic group, and R.sup.2 are each a substituted or unsubstituted monovalent hydrocarbon group or an ether linkage-containing organic group. The invention also discloses an organopolysiloxane composition containing the organosilicone-treated silica and a process preparing the composition. The organosilicone-treated silica is of high quality, containing no substance with disagreeable smell or corrosiveness which has been by-produced heretofore. Hence, the composition containing the silica is free from pseudocrosslinking such as structuring or crepe hardening.

    摘要翻译: 通过(B)具有式(I)的三有机(1-烷氧基乙烯基氧基)硅烷处理(A)比表面积至少为50m 2 / g的二氧化硅粉末得到的经有机硅氧烷处理的二氧化硅: )其中R1是一价烃基或含醚键的有机基团,R 2各自是取代或未取代的一价烃基或含醚键的有机基团。 本发明还公开了含有机硅氧烷处理的二氧化硅的有机聚硅氧烷组合物和制备该组合物的方法。 有机硅氧烷处理的二氧化硅是高品质的,不含有迄今为止副产生的具有令人不愉快的气味或腐蚀性的物质。 因此,含有二氧化硅的组合物没有伪交联,例如结构化或起皱硬化。

    Silicon rubber composition having excellent durability in repeated mold
release
    9.
    发明授权
    Silicon rubber composition having excellent durability in repeated mold release 失效
    硅橡胶组合物在反复脱模时具有优异的耐久性

    公开(公告)号:US5342913A

    公开(公告)日:1994-08-30

    申请号:US92807

    申请日:1993-09-29

    摘要: An addition-curable type rubber composition comprising a vinyl-containing organopolysiloxane as a base polymer and, particularly, further comprising as a crosslinking agent an organohydrogenpolysiloxane which contains, in its molecule, at least one unit having the following formula: ##STR1## wherein J is an alkylene group of from 2 to 4 carbon atoms, Rf is a perfluoropolyether group, and a is an integer of from 0 to 2. The composition has excellent durability in repeated mold release, and a mold prepared from the composition is able to produce moldings of constant quality even when molding is repeated a large number of times.

    摘要翻译: 一种可加成固化型橡胶组合物,其包含含乙烯基的有机聚硅氧烷作为基础聚合物,特别是还包含作为交联剂的有机氢聚硅氧烷,所述有机氢聚硅氧烷在其分子中含有至少一个具有下式的单元:其中J 是2至4个碳原子的亚烷基,Rf是全氟聚醚基团,a是0-2的整数。该组合物在反复脱模时具有优异的耐久性,并且由该组合物制备的模具能够产生 即使在成型时重复多次也能保持恒定质量的模制品。

    Curable organosiloxane-based composition
    10.
    发明授权
    Curable organosiloxane-based composition 失效
    可固化的有机硅氧烷基组合物

    公开(公告)号:US5312885A

    公开(公告)日:1994-05-17

    申请号:US38600

    申请日:1993-03-23

    摘要: Disclosed is an organosiloxane polymer-based composition curable by the mechanism of the hydrosilation reaction between silicon-bonded vinyl groups in a vinylsilyl-terminated perfluoropolyalkylene or perfluoropolyalkylene polyether compound and silicon-bonded hydrogen atoms in a hydrosilyl-terminated perfluoropolyalkylene or perfluoropolyalkylene polyether compound as promoted by a catalyst. Different from conventional platinum compounds as the catalyst for the hydrosilation reaction, the catalyst in the inventive composition is a complex compound of rhodium such as tris(triphenylphosphine) rhodium chloride, rhodium acetate dimer and rhodium acetylacetonate so that the composition is imparted with greatly improved storage stability without viscosity increase over months at room temperature but without affectibg the curability at an elevated temperature.

    摘要翻译: 公开了一种基于有机硅氧烷聚合物的组合物,其可通过在乙烯基甲硅烷基封端的全氟聚亚烷基或全氟聚亚烷基聚醚化合物中与硅键合的乙烯基之间的硅氢化硅烷化氢化硅烷基封端的全氟聚亚烷基或全氟聚亚烷基聚醚化合物中与硅键合的氢原子 通过催化剂。 与作为硅氢化反应的催化剂的常规铂化合物不同,本发明组合物中的催化剂是铑的络合物,例如三(三苯基膦)氯化铑,乙酸铑二聚体和乙酰丙酮化铑,使得组合物被赋予极大改善的储存 在室温下几个月没有粘度增加的稳定性,但在高温下不影响固化性。