Hydrogels
    2.
    发明授权
    Hydrogels 失效
    水凝胶

    公开(公告)号:US06534083B2

    公开(公告)日:2003-03-18

    申请号:US09180171

    申请日:1999-07-26

    CPC classification number: A61L26/0023 A61L15/28 A61L26/008 Y10T428/2978

    Abstract: A method of producing a hydrogel product comprises impregnating a coherent fibrous structure with an aqueous solution of a hydrogel precursor material said fibers incorporating cations which are capable of cross-linking said precursor material to form a fiber reinforced hydrogel as the hydrogel product.

    Abstract translation: 制备水凝胶产品的方法包括用水凝胶前体材料的水溶液浸渍粘性纤维结构物,所述纤维包含能够交联所述前体材料的阳离子,以形成纤维增强水凝胶作为水凝胶产品。

    Process for the manufacture of polyurethane resin for electrostatic
spinning
    3.
    发明授权
    Process for the manufacture of polyurethane resin for electrostatic spinning 失效
    制造静电纺丝用聚氨酯树脂的方法

    公开(公告)号:US4524036A

    公开(公告)日:1985-06-18

    申请号:US597968

    申请日:1984-04-09

    CPC classification number: D01F6/70 C08G18/0852 C08G18/10 D01D5/0038 D04H1/56

    Abstract: A process for the preparation of polyurethane resins particularly suitable for electrostatic spinning which comprises forming a prepolymer of polyether glycol and a diisocyanate reacted in a molar ratio of about 1:2, and thereafter reacting the prepolymer with additional diisocyanate and a diol extender, the final molar ratio of the polyether, isocyanate and diol reactants being approximately 1:3.7:2.5. The reaction is conducted in an organic solvent at a temperature of about 45.degree. C. to obtain a polymer having an inherent viscosity of from about 2.0 to 2.4 in a solution of 25 to 30 percent solids. The solution is diluted to about 15 percent solids prior to spinning.

    Abstract translation: 一种制备特别适用于静电纺丝的聚氨酯树脂的方法,其包括形成聚醚二醇和二异氰酸酯的预聚物,其摩尔比为约1:2,然后使预聚物与另外的二异氰酸酯和二醇增量剂反应, 聚醚,异氰酸酯和二醇反应物的摩尔比为约1:3.7:2.5。 该反应在约45℃的温度下在有机溶剂中进行,得到固体含量为25-30%的固有粘度为约2.0至2.4的聚合物。 在旋转之前将溶液稀释至约15%的固体。

    Wound treatment composition
    4.
    发明授权
    Wound treatment composition 失效
    伤口治疗组合物

    公开(公告)号:US06258995B1

    公开(公告)日:2001-07-10

    申请号:US08983379

    申请日:2000-01-12

    Abstract: A wound treatment composition comprises an amorphous hydrogel incorporating fibers which have provided cations for cross-linking the hydrogel and a bacteria static agent. The composition has a viscosity of 20,000 to 1,000,000 cPs.

    Abstract translation: 伤口治疗组合物包含含有纤维的无定形水凝胶,其提供用于交联水凝胶的阳离子和细菌静电剂。 该组合物的粘度为20,000至1,000,000cPs。

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