A HYDROPHILIC COATING AND A METHOD FOR THE PREPARATION THEREOF
    4.
    发明公开
    A HYDROPHILIC COATING AND A METHOD FOR THE PREPARATION THEREOF 有权
    VERFAHREN ZU IHRER HERSTELLUNG的HYDROPHILE BESCHICHTUNG

    公开(公告)号:EP1578850A1

    公开(公告)日:2005-09-28

    申请号:EP03767485.0

    申请日:2003-12-19

    申请人: COLOPLAST A/S

    摘要: The present invention provides a method for the preparation of a cross-linked hydrophilic coating of a hydrophilic polymer on a substrate polymer surface of a medical device, involving the use of a polymer solution comprising 1-20% by weight of a hydrophilic polymer, 0-5% by weight of additive(s), and the balance of a vehicle with plasticizing effect on the hydrophilic polymer, wherein the vehicle comprises at least one plasticizer having a solubility in water of at least 6 g/L, a boiling point above 210°C at 760 mmHg, and Hansen δH parameter of less than 20. Furthermore, the invention provides a medical device, e.g. a catheter or guide wire, provided with such a hydrophilic coating. The invention also provides the use of specific polymer solution for the preparation of a cross-linked hydrophilic coating.

    摘要翻译: 本发明提供了一种在医疗器械的基底聚合物表面上制备亲水性聚合物的交联亲水性涂层的方法,其涉及使用包含1-20重量%的亲水性聚合物的聚合物溶液,0 -5%(重量)的添加剂,和对亲水性聚合物具有增塑作用的载体的余量,其中载体包含至少一种在水中的溶解度至少为6g / L的增塑剂,沸点高于 210℃,760mmHg,Hansen'H参数小于20.此外,本发明提供了一种医疗装置,例如, 设置有这种亲水性涂层的导管或导丝。 本发明还提供了用于制备交联亲水涂层的特定聚合物溶液的用途。

    Wässrige Polymerzubereitungen
    6.
    发明公开
    Wässrige Polymerzubereitungen 审中-公开
    WässrigePolymerzubereitungen

    公开(公告)号:EP0970993A1

    公开(公告)日:2000-01-12

    申请号:EP99113156.6

    申请日:1999-07-07

    摘要: Die vorliegende Erfindung betrifft wässrige Zubereitungen, enthaltend:

    i) wenigstens ein filmbildendes Polymer A, aufgebaut aus ethylenisch ungesättigten Monomeren M, das in der wässrigen Zubereitung in dispers verteilter Form vorliegt, wobei die Monomere M wenigstens ein monoethylenisch ungesättigtes Monomer M1 der allgemeinen Formel I
    worin X, R 1 , R 2 und R 3 die in Anspruch 1 angegebenen Bedeutungen besitzen
    ii) wenigstens eine Verbindung B, die zwei oder mehrere Aldehydgruppen aufweist,
    für die Beschichtung von Substraten auf der Basis von Polyurethanen.

    摘要翻译: 含水制剂,其含有:(i)具有衍生自具有不饱和取代基的脲,硫脲或咪唑烷-2-酮的单体单元的成膜共聚物; 和(ii)具有2个或更多个醛基的化合物用于涂覆基于聚氨酯(PU)的基材。 要求使用用于涂覆PU基底材料的水性制剂。 这些制剂包含:(i)衍生自包含式(I)的单体(M1)和共聚单体(M2)的不饱和单体(M))的分散的成膜聚合物(A); 和(ii)具有两个或多个醛基的化合物(B),其中:R 1,R 2 = H或1-5C烷基或R 1 + R 2可以形成 任选被1或2个1-5C烷基,1-4C烷氧基和/或羟基取代的2-4C亚烷基; X =氧或硫; R 3 = 2-20C单不饱和残基。 还包括以下独立权利要求:(a)通过将这些制剂施用于基材来涂覆防水PU基底物的方法; (b)含有10-50重量%聚合物(A),0.05-5重量%化合物(B)(基于A),10-70重量%无机填料和/或颜料,0.1重量% -20重量%的常规添加剂等和水至100重量%,其中(A)是70-95重量%的丙烯酸正丁酯和/或2-乙基己酯的共聚物,5-25重量%的苯乙烯, 甲基丙烯酸甲酯和/或甲基丙烯酸叔丁酯,0.1-5重量%的单体M1和0.1-5重量%的单体M3。

    Foamed plastic containing swellable polymer particles, and method for production thereof
    7.
    发明公开
    Foamed plastic containing swellable polymer particles, and method for production thereof 失效
    Teilchen einesquellfähigenPolymers enthaltender Schaumkunststoff und Verfahren zu seiner Herstellung。

    公开(公告)号:EP0041934A1

    公开(公告)日:1981-12-16

    申请号:EP81850104.1

    申请日:1981-06-09

    申请人: AB Ferrosan

    摘要: A foamed plastic and a method for its production are described. The foamed plastic has cavities which consist of open cells or pores. In at least a portion of the cavities, particles of water-insoluble hydrophilic polymer are homogeneously distributed, the particles being swellable to a gel in water. Examples of such polymer particles are granules of cross-linked dextran. The polymer particles are incorporated in the foamed plastic by being suspended in a liquid impregnating agent, such as ethanol-chloroform which is of substantially the same density as the polymer particles. A water-soluble binder, such as polyvinyl pyrrolidone, is also dissolved in the impregnating agent, and suitably also a plasticizing and surface active agent, such as a poloxamer. The foamed plastic is impregnated with the liquid suspension, whereafter the impregnating liquid is removed by drying. The polymer particles are anchored to the dried foamed plastic by means of the binder, whereas the polymer particles, on use of the foamed plastic product for, for example, treating a running sore, swell to form a gel such that they fill out the cavities of the foamed plastic and are retained because of steric hindrance. The foamed plastic product is int.al. usable as a bandage and/or for plugging to drain exudate from injured skin surfaces, such as running sores, and in the treatment of incontinence. Also non-clinical fields of use, such as the use of gel iodophore-provided foamed plastic for water purification, are included in the invention.

    摘要翻译: 描述了泡沫塑料及其制造方法。 泡沫塑料具有由开孔或孔组成的空腔。 在空腔的至少一部分中,水不溶性亲水性聚合物颗粒均匀分布,颗粒可溶于水中的凝胶。 这种聚合物颗粒的实例是交联葡聚糖的颗粒。 聚合物颗粒通过悬浮在诸如与聚合物颗粒基本上相同密度的乙醇 - 氯仿的液体浸渍剂中而引入发泡塑料中。 水溶性粘合剂如聚乙烯吡咯烷酮也溶解在浸渍剂中,也适用于增塑剂和表面活性剂如泊洛沙姆。 泡沫塑料用液体悬浮液浸渍,然后通过干燥除去浸渍液体。 聚合物颗粒通过粘合剂锚固到干燥的发泡塑料上,而聚合物颗粒在使用泡沫塑料制品例如治疗流涎的溶液时溶胀以形成凝胶,使得它们填充空腔 的发泡塑料,并由于空间位阻而被保留。 泡沫塑料制品是内在的。 可用作绷带和/或用于堵塞以从受伤的皮肤表面(例如跑步疮)和治疗失禁中排出渗出物。 本发明还包括非临床使用领域,例如使用凝胶碘载提供的用于水净化的发泡塑料。