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2093 条记录 (耗时 0.035 秒)

    Organosilicon compositions containing hydrocarbon elastomers
    93.
    发明公开
    Organosilicon compositions containing hydrocarbon elastomers 失效
    含有石墨烯弹性体的组氨酸组合物

    公开(公告)号：EP0482404A3

    公开(公告)日：1993-02-17

    申请号：EP91116964.7

    申请日：1991-10-04

    申请人： HERCULES INCORPORATED

    发明人： Barnum, Paquita Elizabeth ,  Brady, Richard Lee

    IPC分类号： C08L83/14 ,  C08L83/10

    CPC分类号： C08L83/14 ,  C08L2666/04

    摘要： This invention is directed to a polymeric composition comprising (a) a continuous phase of a cross-linked organosilicon polymer comprised of alternating (i) polycyclic hydrocarbon residues derived from the polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings and (ii) and residues derived from the group consisting of cyclic polysiloxanes and tetrahedral siloxysilanes, linked through carbon to silicon bonds, and (b) a discontinuous phase of a low molecular weight hydrocarbon elastomer having at least two hydrosilation reactable carbon-carbon double bonds. In addition, this invention is directed to a prepolymer composition comprising (a) a hydrosilation cross-linkable organosilicon prepolymer which is the partial reaction product of (i) polycyclic polyenes having at least two non-aromatic, non-conjugated hydrosilation reactive carbon-carbon double bonds in their rings and (ii) cyclic polysiloxanes or tetrahedral siloxsilanes having at least two hydrosilation reaction ≡SiH groups wherein at least one of (i) or (ii) has at least three reactive groups, and (b) hydrocarbon elastomer having at least two hydrosilation reactable carbon-carbon double bonds.

    Absorbable dusting powder derived from starch
    95.
    发明公开
    Absorbable dusting powder derived from starch 失效
    可吸收的抛光粉从淀粉衍生

    公开(公告)号：EP0489424A3

    公开(公告)日：1993-01-27

    申请号：EP91120845.2

    申请日：1991-12-04

    申请人： CPC INTERNATIONAL INC.

    发明人： Fitt, Larry E. ,  McNary, Harry Thomas

    IPC分类号： C08B31/00 ,  A61K7/035 ,  A61L31/00 ,  A61B19/04

    CPC分类号： C08B31/003 ,  A61B42/00 ,  A61K8/732 ,  A61L31/042 ,  A61Q1/12 ,  C08L3/00

    摘要： Absorbable dusting powders suitable for medical applications such as lubricating surgical gloves are prepared by treating starch with a hypochlorite to remove protein and oxidize some of the hydroxyl groups, and partially cross-linking the hypochlorite-treated starch with phosphorus oxychloride. The modified starch dusting powders are free flowing and are characterized by a protein content of less than about 0.15% by weight, hydroxyl groups oxidized to a level of from about 0.5 to about 0.05% by weight and a degree of cross-linking of other hydroxyl groups characterized by bound phosphorus levels of from about 200 to about 1200 ppm.

    Organosilicon compositions containing siloxane elastomers
    99.
    发明公开
    Organosilicon compositions containing siloxane elastomers 失效
    硅氧烷类有机硅氧烷。

    公开(公告)号：EP0509373A2

    公开(公告)日：1992-10-21

    申请号：EP92105988.7

    申请日：1992-04-07

    申请人： HERCULES INCORPORATED

    发明人： Barnum, Paquita E. ,  Brady, Richard Lee

    IPC分类号： C08L83/14 ,  C08L83/10

    CPC分类号： C08G77/44 ,  C08L83/14 ,  C08L83/00

    摘要： This invention is directed to a composition comprising (A) a continuous phase of (i) a crosslinked organosilicon polymer or crosslinkable organosilicon prepolymer comprising alternating (a) cyclic polysiloxane or tetrahedral siloxysilane residues and (b) polycyclic hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings linked through carbon to silicon bonds, wherein at least one of the cyclic polysiloxanes or tetrahedral siloxysilanes (a) or the polycyclic polyenes (b) used to form the polymer or prepolymer has more than two reactive sites; or (ii) a crosslinked or crosslinkable linear poly(organohydrosiloxane) polymer having at least 30% of its ≡SiH groups reacted to hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings; and (B) a discontinuous phase of a low molecular weight siloxane elastomer having at least two hydrosilation reactable carbon-carbon double bonds.

    摘要翻译： 本发明涉及包含（A）连续相的组合物（i）交联的有机硅聚合物或可交联的有机硅预聚物，其包含交替的（a）环状聚硅氧烷或四面体硅氧烷硅烷残基和（b）衍生自多环多烯的多环烃残基， 在其环中通过碳与硅键连接的至少两个非芳族的非共轭碳 - 碳双键，其中用于形成聚合物的至少一种环状聚硅氧烷或四面体硅氧烷基硅烷（a）或多环多烯（b） 或预聚物具有两个以上的反应性位点; 或（ii）交联或交联的线性聚（有机氢硅氧烷）聚合物，其具有至少30％的其标识SiH基团与衍生自具有至少两个非芳族非共轭碳 - 碳双键的多环多烯的烃残基反应 戒指; 和（B）具有至少两个氢硅烷化反应性碳 - 碳双键的低分子量硅氧烷弹性体的不连续相。