Enzyme Catalyzed Polyesters and Polyol Polymers
    42.
    发明公开
    Enzyme Catalyzed Polyesters and Polyol Polymers 有权
    聚酯多元醇多元醇

    公开(公告)号:EP2258744A1

    公开(公告)日:2010-12-08

    申请号:EP10179153.1

    申请日:2004-05-18

    摘要: Methods for synthesizing saturated and unsaturated polyol polymers are disclosed. The polyol polymers are prepared by the esterification of a di- or polycarboxylic acid with a polyhydric alcohol or a polyhydric alcohol modified to include one or more (meth)acrylate moieties, using an enzymatic catalyst, advantageously avoiding the use of an acidic or heavy metal catalyst. The polyol polymers can be used to prepare urethanes or urethane acrylates, and the urethanes or urethane acrylates used in coating compositions, for example, to provide a coating to surface coverings such as floor, wall and ceiling coverings. The polyol polymers and/or urethane (meth)acrylates can also be used to prepare other articles of manufacture, such as food wraps, children's toys and the like.

    摘要翻译: 公开了用于合成饱和和不饱和多元醇聚合物的方法。 多元醇聚合物通过使用酶催化剂酯化二元或多元羧酸与多元醇或多元醇被改性成包括一种或多种(甲基)丙烯酸酯部分,有利地避免使用酸性或重金属 催化剂。 多元醇聚合物可用于制备氨基甲酸酯或聚氨酯丙烯酸酯,以及用于涂料组合物中的聚氨酯或聚氨酯丙烯酸酯,例如为表面覆盖物例如地板,墙壁和天花板覆盖物提供涂层。 多元醇聚合物和/或氨基甲酸酯(甲基)丙烯酸酯也可用于制备其它制品,例如食品包装,儿童玩具等。

    A coating employing an anti-thrombotic conjugate
    43.
    发明公开
    A coating employing an anti-thrombotic conjugate 审中-公开
    涂层的抗血栓形成的共轭

    公开(公告)号:EP2014308A3

    公开(公告)日:2010-10-20

    申请号:EP08252335.8

    申请日:2008-07-09

    发明人: Zhao, Jonathan

    摘要: A biodegradable antithrombotic conjugate having heparin and other anti-thrombotic moieties are introduced as side chains to the polymer backbone modified by a click chemistry reaction. Various bioabsorbable monomers and dimers such as valerolactone may be used in the monomer derivation, homo- and co-polymerization, and the conjugation with a biologically active molecule by click chemistry. A coating comprising a biocompatible and bioabsorbable polymer anti-thrombotic conjugate is applied to at least a portion of an implantable device to prevent or reduce the formation of thrombosis on the surface of the implantable device. A first or sub-layer of the coating is prepared by mixing a polymeric material and a biologically active agent with a solvent, thereby forming a homogeneous solution. A second or outer layer comprising the present anti-thrombotic conjugate may be applied over the inner drug-containing layers using, for example, a dip coating or spray coating process.

    PROCESS FOR THE MODIFICATION OF BIODEGRADABLE POLYMERS
    44.
    发明授权
    PROCESS FOR THE MODIFICATION OF BIODEGRADABLE POLYMERS 有权
    方法进行修改生物降解聚合物

    公开(公告)号:EP1991601B1

    公开(公告)日:2010-08-25

    申请号:EP07726474.5

    申请日:2007-02-22

    申请人: Akzo Nobel N.V.

    摘要: Process for the modification of a polymer or copolymer having the following general structure for one or more of the repeating units: (1) wherein n is an integer, m is an integer in the range 0 to 6, and R is selected from hydrogen, substituted or unsubstituted C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 aralkyl, and C7-C20 alkaryl, which groups may include linear or branched alkyl moieties; the optional one or more substituents being selected from the group consisting of hydroxy, alkoxy, linear or branched alk(en)yl, aryloxy, halogen, carboxylic acid, ester, carboxy, nitrile, and amido groups, which process involves contacting the polymer or copolymer with a cyclic organic peroxide under conditions whereby at least some of said peroxide is decomposed. This process results in a (co)polymer with a high degree of branching but free of gel formation.