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1. 发明授权

US5593738A Process for the preparation of composite semi-permeable membrane 失效
标题翻译：复合半透膜的制备工艺
公开(公告)号：US5593738A
公开(公告)日：1997-01-14
申请号：US359301
申请日：1994-12-19
申请人： Dae W. Ihm , Jeong L. Kim , Kwon I. Kim , Byeng H. Kim
发明人： Dae W. Ihm , Jeong L. Kim , Kwon I. Kim , Byeng H. Kim
IPC分类号： B01D71/48 , B01D69/10 , B01D69/12 , B01D71/56 , B32B5/18 , B32B27/12 , B32B27/34 , D06N3/12 , C23C14/02
CPC分类号： D06N3/125 , B01D69/10 , B01D69/125
摘要： There is provided a process for the preparation of composite semi-permeable membrane superior in selectivity and permeability, capable of improving bonding strength between a porous support layer and a reinforcement and mechanical strength of semi-permeable membrane.The composite semi-permeable membrane is prepared by subjecting woven fabric or non-woven fabric to corona discharge with a discharge power of approximately 10 to approximately 15 watt for a period of approximately 20 to approximately 40 seconds, spraying water over one surface of the fabric, casting porous support substance on the other surface of the fabric when a time of approximately 5 to approximately 10 seconds has elapsed after the spray, and laminating a crosslinked polyamide ultrathin film on the porous support substance, the polyamide ultrathin film being synthesized by interfacial polycondensation of a multifunctional amine solution and a multifunctional halogen solution.
摘要翻译：提供了选择性和渗透性优异的复合半渗透膜的制备方法，能够提高多孔性支撑层与增强层之间的粘结强度和半透膜的机械强度。复合半透膜通过使机织织物或无纺织物以大约10至大约15瓦的放电功率进行电晕放电约20至约40秒的时间来制备，在织物的一个表面上喷洒水在喷涂后经过约5〜10秒的时间，在织物的另一表面上浇铸多孔载体物质，并在多孔载体物质上层叠交联聚酰胺超薄膜，通过界面缩聚合成聚酰胺超薄膜的多官能胺溶液和多官能卤素溶液。

2. 发明授权

US5397828A Biaxially stretched polyester film 失效
标题翻译：双轴拉伸聚酯薄膜
公开(公告)号：US5397828A
公开(公告)日：1995-03-14
申请号：US264917
申请日：1994-06-24
申请人： Dae W. Ihm , Jeong L. Kim , Seung B. Jun
发明人： Dae W. Ihm , Jeong L. Kim , Seung B. Jun
IPC分类号： B29C55/00 , B29C55/12 , B29C70/58 , B29D7/01 , B29K67/00 , B29K105/16 , B29L7/00 , C08J5/18 , C08K3/20 , C08K3/36 , C08L67/00 , B29C71/00 , C08J3/20
CPC分类号： C08J5/18 , B29C55/005 , B29C70/58 , B29D7/01 , B29K2067/00 , B29K2105/16 , C08J2367/02 , Y10T428/31786
摘要： A biaxially stretched polyester film is disclosed.The biaxially stretched polyester film comprises substantially spherical silica particles of colloidal state having average diameters ranging from approximately 20 nm to approximately 200 nm in amounts ranging from approximately 0.005% to approximately 1.0% by weight based on the total weight of the polyester; and alumina particles having average diameters ranging from approximately 50 nm to approximately 500 nm in amounts ranging from approximately 0.05% to approximately 5.0% by weight, the average diameter of the alumina particles being larger than that of the silica particles.The biaxially stretched film prepared according to the present invention has excellent surface properties such as slip property and abrasion resistance, so that the film may be used for manufacturing final products without scratches and white powders occurring thereon.
摘要翻译：公开了一种双轴拉伸聚酯薄膜。双轴拉伸聚酯薄膜基本上以聚酯的总重量计约0.005〜1.0％（重量），含有平均粒径为约20nm〜约200nm的基本上为球状的胶体状二氧化硅粒子。氧化铝颗粒的平均直径范围为约50nm至约500nm，其量为约0.05％至约5.0％重量，氧化铝颗粒的平均直径大于二氧化硅颗粒的平均直径。根据本发明制备的双轴拉伸膜具有优异的表面性能，如滑动性和耐磨性，使得该膜可用于制造最终产品而不产生划痕，并且在其上发生白色粉末。

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