Novel Hydrogels Based On Polyvinyl Alcohols And Polyvinyl Alcohol Copolymers
    3.
    发明申请
    Novel Hydrogels Based On Polyvinyl Alcohols And Polyvinyl Alcohol Copolymers 审中-公开
    基于聚乙烯醇和聚乙烯醇共聚物的新型水凝胶

    公开(公告)号:US20080112984A1

    公开(公告)日:2008-05-15

    申请号:US11587102

    申请日:2005-04-22

    摘要: The invention relates to hydrogels containing polyvinyl alcohols and/or polyvinyl alcohol copolymers having special geometries, methods for the production of said hydrogels, and the use of the hydrogels as materials in the biomedical and pharmaceutical field, for producing contact lenses, for the controlled release of active substances, as a carrier material for inclusion-immobilized biocatalysts, a carrier material for transition metal catalysts, a material for producing reactive membranes, an additive to drilling fluid, a displacing agent in oil recovery, a cement additive and an additive to highly viscous liquids such as crude oil to improve the flowability and increase the speed of conveyance, and a component of cosmetic products.

    摘要翻译: 本发明涉及含有具有特殊几何形状的聚乙烯醇和/或聚乙烯醇共聚物的水凝胶,用于生产所述水凝胶的方法,以及在生物医药和制药领域中使用水凝胶作为生产隐形眼镜的控制释放 活性物质作为包含固定化生物催化剂的载体材料,用于过渡金属催化剂的载体材料,用于制备反应性膜的材料,钻井液添加剂,油回收中的置换剂,水泥添加剂和高添加剂 粘性液体如原油,以改善流动性和提高运输速度,以及化妆品的组分。

    Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and process for preparing polyolefins

    公开(公告)号:US20060122345A1

    公开(公告)日:2006-06-08

    申请号:US10537677

    申请日:2003-12-02

    IPC分类号: B01J31/00 C07F17/00 C08F4/44

    摘要: The present invention relates to organometallic transition metal compounds of formula (I) where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides, X are identical or different and are each halogen, hydrogen, C1-C20-alkyl , C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl each having from 1 to 10 carbon atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, —OR6 or —NR6R7, where two radicals X may also be joined to one another, n is a natural number from 1 to 4 which corresponds to the oxidation number of M1 minus 2, R1 is hydrogen or a C1-C40 radical, R2 is a substituted or unsubstituted C6-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P, R3 is hydrogen or a C1-C40 radical, or the radicals R2 and R3 together form a ring system, R4 is hydrogen or a C1-C40 radical, R5 is a C1-C40 radical, and Z is a divalent group CR8R9—CR10R11, where R8, R9, R10 and R11 are identical or different and are each hydrogen or a C1-C40 radical, biscyclopentadienyl ligand systems having such a substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention, a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention and the use of the biscyclopentadienyl ligand systems of the present invention for preparing organometallic transition metal compounds.

    Novel polyvinyl esters
    9.
    发明申请
    Novel polyvinyl esters 审中-公开
    新型聚乙烯酯

    公开(公告)号:US20060160974A1

    公开(公告)日:2006-07-20

    申请号:US10525078

    申请日:2003-08-14

    IPC分类号: C08F218/02

    CPC分类号: C08F218/04

    摘要: The present invention relates to polymers having specific geometries based on polyvinyl esters, to initiator systems for their preparation and to a process for preparing polymers which have specific geometries and are based on polyvinyl esters.

    摘要翻译: 本发明涉及具有基于聚乙烯基酯的具体几何形状的聚合物,其制备用引发剂体系以及制备具有特定几何形状且基于聚乙烯酯的聚合物的方法。