首页>
外国专利>
A PROCEDURE FOR THE PREPARATION OF A SEMIPERMEABLE POLYPROPYLENE MEMBRANE
A PROCEDURE FOR THE PREPARATION OF A SEMIPERMEABLE POLYPROPYLENE MEMBRANE
展开▼
机译:一种半渗透性聚丙烯膜的制备方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention provides a composition from which a semipermeable membrane may be made by processing said composition at an elevated temperature, said composition comprising a mixture of polypropylene, a second polymer and a processing aid, said processing aid and said polypropylene being compatible at said elevated temperature and being incompatible when a heated mixture of said polypropylene and said processing aid is cooled to ambient temperature, said second polymer and said processing aid being compatible when heated to said elevated temperature and also being compatible when a heated mixture of said second polymer and said processing aid is cooled to ambient temperature, said mixture being compatible at said elevated temperature and exhibiting phase separation of at least said polypropylene at ambient temperature. The invention further provides semipermeable membranes, and a process for making a semipermeable membrane.
展开▼