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609 条记录 (耗时 0.019 秒)

    RADIOPAQUE POLYMERS
    108.
    发明申请
    RADIOPAQUE POLYMERS 有权

    公开(公告)号：US20210277162A1

    公开(公告)日：2021-09-09

    申请号：US17252560

    申请日：2019-12-26

    申请人： BIOCOMPATIBLES UK LIMITED

    发明人： Andrew Lennard LEWIS ,  Hugh BRITTON ,  Yiqing TANG ,  Jonathan VINCE ,  Koorosh ASHRAFI ,  Damien GUEGAN

    IPC分类号： C08F261/04 ,  A61K9/16 ,  A61K9/00 ,  C08G67/00 ,  A61L24/00 ,  A61K49/04 ,  A61L24/04

    摘要： A hydrophilic polymer comprising pendent groups of the formula I: Wherein: W is independently selected from —OH, —COOH, —SO3H, —OPO3H, —O—(C1-4alkyl), —O—(C1-4alkyl)OH, —O—(C1-4alkyl)R2, —O—(C2H5O)qR1—(C═O)—O—C1-4alkyl and —O—(C═O)C1-4alkyl; or a group —BZ; wherein —OH, COOH, O—PO3H and SO3H maybe in the form of a pharmaceutically acceptable salt; wherein: B is a bond, or a straight branched alkanediyl, oxyalkylene, alkylene oxaalkylene, or alkylene (oligooxalkylene) group, optionally containing one or more fluorine substituents; and Z is an ammonium, phosphonium, or sulphonium phosphate or phosphonate ester zwitterionic group; X is either a bond or a linking group having 1 to 8 carbons and optionally 1 to 4 heteroatoms selected from O, N and S; G is a coupling group through which the group of the formula I is coupled to the polymer and is selected from ether, ester, amide, carbonate, carbamate, 1,3 dioxolone, and 1,3 dioxane; R1 is H or C1-4 alkyl; R2 is —COOH, —SO3H, or —OPO3H2 q is an integer from to 4; n is an integer from 1 to 4; p is an integer from 1 to 3; and n+p is from 2 to 5; and wherein —COOH, —OPO3H2 and —SO3H as well as phenolic —OH maybe in the form of a pharmaceutically acceptable salt.

    Thermoplastic polyether ester elastomer comprising anhydrosugar alcohol derivative and method for preparing same
    109.
    发明授权
    Thermoplastic polyether ester elastomer comprising anhydrosugar alcohol derivative and method for preparing same 有权

    公开(公告)号：US10995212B2

    公开(公告)日：2021-05-04

    申请号：US16467876

    申请日：2017-11-14

    申请人： SAMYANG CORPORATION

    发明人： Min Sun Lee ,  Mi Ran Kim ,  Yun Ju Chang ,  Jae Kwan Kwon ,  Cheol Han Lee ,  Young Do Kwon

    IPC分类号： C08L67/02 ,  C08G63/137 ,  C08G63/189 ,  C08G63/672 ,  C08G67/00

    摘要： The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for preparing the same and, more specifically, to a thermoplastic polyether ester elastomer and a method for preparing the same, wherein a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass is contained in the soft segment, and thus through the adjustment of the content of the anhydrosugar alcohol derivative, elastic characteristics and physical characteristics (for example, hardness, etc.), which are important characteristics of an elastomer, can be favorably maintained, the melting point variously required in the molding process of a final product can be easily controlled, a problem of depletion of, especially, petroleum resources as finite resources, can be solved, and environmental friendliness can be improved.