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    • 4. 发明授权
    • Immobilization of biological material with polyurethane polymers
    • 用聚氨酯聚合物固定生物材料
    • US4237229A
    • 1980-12-02
    • US849990
    • 1977-11-09
    • Frank J. HartdegenWayne E. Swann
    • Frank J. HartdegenWayne E. Swann
    • A61K39/44C08G18/64C12N11/08C13K1/06C13K11/00C07G7/02
    • C13K11/00A61K39/44C08G18/6446C12N11/08C13K1/06
    • A process for immobilizing a biological material which can be a protein, a coenzyme having at least one primary or secondary amino group per molecule, an admixture of said coenzyme and an enzyme which is mediated by said coenzyme, or an antibiotic having at least one primary or secondary amino group per molecule, wherein the biological material is contacted with an excess of an isocyanate-capped liquid polyurethane prepolymer in the absence of water, and the resulting mixture is cured by contacting it with a curing agent to cure the prepolymer and to immobilize the biological material. The resulting mixture can be cured under foam-forming conditions or under nonfoam-forming conditions. The resulting mixture can be formed into a predetermined shape before or during curing or coated onto a surface before or during curing.
    • 一种用于固定生物材料的方法,其可以是蛋白质,每分子具有至少一个伯氨基或仲氨基的辅酶,所述辅酶和由所述辅酶介导的酶的混合物,或具有至少一个伯 或仲氨基,其中生物材料在不存在水的情况下与过量的异氰酸酯封端的液体聚氨酯预聚物接触,所得混合物通过与固化剂接触固化以固化预聚物并固定 生物材料。 所得混合物可以在泡沫形成条件下或在非泡沫形成条件下固化。 所得混合物可以在固化前或固化期间形成预定形状,或在固化前或固化期间涂覆在表面上。