Polyoxyethylene having a sugar on one end and a different functional
group on the other end and a method of production thereof
    94.
    发明授权
    Polyoxyethylene having a sugar on one end and a different functional group on the other end and a method of production thereof 有权
    在一端具有糖并且在另一端具有不同官能团的聚氧乙烯及其制备方法

    公开(公告)号:US6090317A

    公开(公告)日:2000-07-18

    申请号:US361958

    申请日:1999-07-27

    Abstract: This invention provides a heterotelechelic oligomer or polymer which is represented by the following formula: ##STR1## wherein A denotes a sugar residue, L denotes a linkage group represented by the following formula ##STR2## wherein R.sup.1 and R.sup.2 independently denote lower alkyl, aralkyl or aryl,X denotes a single bond or --CH.sub.2 CH.sub.2 --, Z denotes a group forming an unsaturated ester or ether, or a functional group such as halogen which binds to --CH.sub.2 CH.sub.2 --, n denotes an integer of 5-10,000, and m denotes an integer of 0 or 2-10,000.This invention also provides a process to produce the above oligomer or polymer, and further a high molecular-micelle with use of a polyethylene oxide-polyester block polymer which has a sugar residue at its terminal. Said oligomer or polymer is expected to exhibit excellent bioavailability, and is also expected to be utilized in the field such as carriers for drug delivery or diagnostic reagents.

    Abstract translation: 本发明提供了由下式表示的异炔属低聚物或聚合物:其中A表示糖残基,L表示由下式表示的连接基团,其中R 1和R 2独立地表示低级烷基,芳烷基或芳基,X表示单 键或-CH 2 CH 2 - ,Z表示不饱和酯或醚的基团,或与-CH 2 CH 2 - 结合的官能团例如卤素,n表示5-10,000的整数,m表示0或2的整数, 10,000。 本发明还提供了使用在其末端具有糖残基的聚环氧乙烷 - 聚酯嵌段聚合物制备上述低聚物或聚合物以及进一步的高分子量胶束的方法。 预期所述低聚物或聚合物表现出优异的生物利用度,并且还预期在现场使用,例如用于药物递送或诊断试剂的载体。

    Method of manufacturing molding material containing metal fibers and
apparatus therefor
    96.
    发明授权
    Method of manufacturing molding material containing metal fibers and apparatus therefor 失效
    含有金属纤维的成型材料的制造方法及其设备

    公开(公告)号:US5228370A

    公开(公告)日:1993-07-20

    申请号:US824877

    申请日:1992-01-24

    Abstract: A method of manufacturing a molding material includes the steps of winding a thin metal strip on the peripheral surface of a rotary shaft a plurality of turns with a resin material being interposed between the resulting layers of metal, cutting an end surface of the metal strip and the resin material which have been wound by a cutting blade while rotating said rotary shaft to obtain a mixture of metal fibers and resin fibers, and heating the fiber mixture to a temperature at which the resin fibers can be softened. In this way, a molding material in which the metal fibers are substantially uniformly dispersed in the resin material in a closely contacted state can be obtained easily. Furthermore, the contents of the metal fibers by volume in the molding material can be arbitrarily adjusted by changing the rate at which the metal strip and the resin material are wound around the rotary shaft.

    Abstract translation: 制造成型材料的方法包括以下步骤:在旋转轴的圆周表面上缠绕多个匝,其中树脂材料插入在所得的金属层之间,切割金属带的端面和 所述树脂材料在旋转所述旋转轴的同时由切割刀片卷绕以获得金属纤维和树脂纤维的混合物,并且将所述纤维混合物加热到所述树脂纤维可以软化的温度。 以这种方式,可以容易地获得其中金属纤维基本均匀地分散在树脂材料中的紧密接触状态的成型材料。 此外,可以通过改变金属带和树脂材料缠绕在旋转轴上的速率来任意调节成型材料中的金属纤维的体积含量。

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