A biocidally active polymer composition formed from an oligomeric or polymeric additive and a thermoplastic polyurethane polymer is disclosed. The biocidally active polymer may further include a non-fouling and/or non-thrombogenic polymer. The biocidally active polymer provides biocidally active properties, and may also provide non-fouling and/or non-thrombogenic properties. The composition is particularly useful in articles and materials for medical applications.本發明揭露一種生物殺滅活性聚合物組成物,其係由寡聚或聚合添加劑以及熱塑性聚胺甲酸酯聚合物所形成。該生物殺滅活性聚合物,可以進一步包括有不積垢及/或不形成血栓聚合物。該生物殺滅活性聚合物提供生物殺滅活性,並亦可提供不積垢及/或不形成血栓之性質。該組成物對於醫療應用物件與材料而言係特別有用的。