Process for preparing a polymer of three-dimensional structure of the
cross-linked polyurethane type, product obtained according to this
process and application thereof as swelling agent, particularly in
therapeutics
    3.
    发明授权
    Process for preparing a polymer of three-dimensional structure of the cross-linked polyurethane type, product obtained according to this process and application thereof as swelling agent, particularly in therapeutics 失效
    用于制备交联聚氨酯类型的三维结构聚合物的方法,根据该方法获得的产物及其作为溶胀剂的应用,特别是治疗剂

    公开(公告)号:US4340699A

    公开(公告)日:1982-07-20

    申请号:US278845

    申请日:1981-06-29

    申请人: Herve Grouiller

    发明人: Herve Grouiller

    摘要: The present invention relates to a process for preparing a polymer of the cross-linked polyurethane type, whereby(1) the following are reacted:(a) a polyolether, chosen from the group constituted by the oxyalkylene polyols (I) and mixtures thereof, obtained by condensation of a polyol (II) containing at least 2 OH groups and preferably 3 to 6 OH groups with an alkylene oxide (III) at a rate of 1 to 20 moles of (III) per free OH group of (II), and(b) a polyisocyanate (IV),the reaction being effected with an excess of OH groups of (I) with respect to the NCO isocyanate groups of (IV) to obtain a polyurethane-polyol (V) having free OH groups; and(2) the polyurethane-polyol (V) thus obtained is reacted with epichlorhydrin (VI) and a polyamine (VII) chosen from the polyamines having at least two NH.sub.2 amino groups and mixtures thereof. The invention also relates to this polymer as new industrial product and to its application as swelling agent.

    摘要翻译: 本发明涉及一种制备交联聚氨酯类聚合物的方法,其中(1)使下列物质反应:(a)选自氧化烯多元醇(I)及其混合物的聚烯烃, 通过使含有至少2个OH基团,优选3〜6个OH基团的多元醇(II)与环氧烷(III)以(ii)的每个游离OH基团为1〜20摩尔(III)的比例缩合得到, 和(b)多异氰酸酯(IV),相对于(IV)的NCO异氰酸酯基,过量的(I)的OH基进行反应,得到具有游离OH基团的聚氨酯 - 多元醇(V) 和(2)由此获得的聚氨酯 - 多元醇(V)与选自具有至少两个NH 2氨基的多胺和其混合物的表氯醇(VI)和多胺(VII)反应。 本发明还涉及这种聚合物作为新的工业产品和它作为溶胀剂的应用。