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1. 发明授权

US06228969B1 Biodegradable polyester urethanes, method for the production and use thereof 失效
标题翻译：可生物降解聚酯聚氨酯，其生产和使用方法
公开(公告)号：US06228969B1
公开(公告)日：2001-05-08
申请号：US09445380
申请日：1999-12-06
申请人： Yoon Jick Lee , Hartmut Seliger , Erwin Happ
发明人： Yoon Jick Lee , Hartmut Seliger , Erwin Happ
IPC分类号： C08G1842
CPC分类号： C08G18/4277 , C08G2230/00 , C09J175/06 , Y10T428/31551 , Y10T428/31591
摘要： The present invention concerns biodegradable linear polyester urethanes as well as biodegradable crosslinked polyester urethanes issuing from the linear polyester urethanes in such a way that they are crosslinked by diisocyanate bridges. By varying the degree of crosslinking it is possible to adjust the physical, chemical and biological properties in the crosslinked polyester urethane as defined by the invention in a targeted manner. In particular, it is possible to vary the rate of biodegradation of said crosslinked polyester urethane because the biological degradation takes place at a slower rate as the degree of crosslinking increases. Furthermore, the object of the invention is a method of producing the polyester urethanes as defined by the invention, as well as its application in the form of sheets or foils, shaped rubber articles, containers, packaging materials, in the field of galenic pharmacy; and in the form of adhesives and adhesive tapes and the like. Furthermore, the invention relates to polymer blends containing the polyester urethanes as defined by the invention.
摘要翻译：本发明涉及可生物降解的线性聚酯聚氨酯以及由直链聚酯聚氨酯发出的可生物降解的交联聚酯聚氨酯，使得它们通过二异氰酸酯桥交联。通过改变交联度，可以以目标方式调节本发明所定义的交联聚氨酯中的物理，化学和生物学性能。特别地，可以改变所述交联聚酯聚氨酯的生物降解速率，因为当交联度增加时，生物降解发生在较慢的速度。此外，本发明的目的是制备本发明所定义的聚酯聚氨酯的方法，以及其在盖仑药剂领域中以片或箔，成形橡胶制品，容器，包装材料的形式的应用; 并且以粘合剂和胶带等的形式。此外，本发明涉及包含本发明所定义的聚酯聚氨酯的聚合物共混物。

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