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公开(公告)号：US4737325A
公开(公告)日：1988-04-12
申请号：US819311
申请日：1986-01-16
IPC分类号： B32B5/18 , B01D69/12 , B01D71/38 , B01D71/82 , C08F8/00 , C08F8/30 , C08F8/32 , C08J9/00 , B01D13/00
CPC分类号： B01D71/38 , B01D69/125
摘要： A composite semipermeable membrane and a process for preparation thereof are described, wherein said membrane comprises (1) a porous substrate, (2) an ultrathin film as a surface layer formed by polymerization by crosslinking of polyvinyl alcohol and an amino compound having at least two secondary amino groups using a polyfunctional crosslinking reagent capable of reacting with secondary amino groups and hydroxyl groups, and (3) a porous inner layer composed of water insoluble polyvinyl alcohol which is present between the porous substrate and the ultrathin film.
摘要翻译： 描述了复合半透膜及其制备方法，其中所述膜包括（1）多孔基材，（2）通过聚乙烯醇交联聚合形成的表面层的超薄膜和具有至少两个 使用能够与仲氨基和羟基反应的多官能交联剂的仲氨基，（3）存在于多孔基材和超薄膜之间的由水不溶性聚乙烯醇构成的多孔内层。
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公开(公告)号：US4619767A
公开(公告)日：1986-10-28
申请号：US287653
申请日：1981-07-28
IPC分类号： B32B5/18 , B01D69/12 , B01D71/38 , B01D71/82 , C08F8/00 , C08F8/30 , C08F8/32 , C08J9/00 , B01D13/00
CPC分类号： B01D71/38 , B01D69/125
摘要： A composite semipermeable membrane is described, wherein said membrane comprises (1) a porous substrate, (2) an ultrathin film as a surface layer formed by polymerization by crosslinking of polyvinyl alcohol and an amino compound having at least two secondary amino groups using a polyfunctional crosslinking reagent capable of reacting with secondary amino groups and hydroxyl groups, and (3) a porous inner layer composed of water insoluble polyvinyl alcohol which is present between the porous substrate and the ultrathin film.
摘要翻译： 描述了一种复合半透膜，其中所述膜包括（1）多孔基材，（2）通过使用多官能团交联聚乙烯醇与具有至少两个仲氨基的氨基化合物聚合形成的表面层的超薄膜 可与仲氨基和羟基反应的交联剂，（3）存在于多孔质基材与超薄膜之间的由水不溶性聚乙烯醇构成的多孔内层。
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公开(公告)号：US4707261A
公开(公告)日：1987-11-17
申请号：US468746
申请日：1983-02-22
CPC分类号： B01D63/063
摘要： An improved tubular membrane filtration module comprising an outer cylinder and a plurality of water permeable non-woven fabric pipes formed on the inside thereof, said non-woven fabric pipes being inserted into the outer cylinder in a closely bundled state, the spaces between the fabric pipes and the outer cylinder at each end thereof being filled with hardened synthetic resin to fix and seal the assembly and wherein the ends of the non-woven fabric pipes are coated with a resin such that the inside coating of resin at the end of the fabric pipes is less than that on the inside thereof.
摘要翻译： 一种改进的管状膜过滤组件，包括外筒和形成在其内部的多个透水性无纺布管，所述无纺布管以紧密捆扎状态插入外筒中，织物之间的空间 管和其两端的外筒充满硬化的合成树脂以固定和密封组件，并且其中无纺布管的端部涂覆有树脂，使得在织物末端处的树脂的内部涂层 管子小于其内部的管道。
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公开(公告)号：US4747946A
公开(公告)日：1988-05-31
申请号：US69080
申请日：1987-07-02
CPC分类号： B01D63/063
摘要： An improved tubular membrane filtration module including an outer cylinder and a plurality of water permeable non-woven fabric pipes formed on the inside thereof, the non-woven fabric pipes being inserted into the outer cylinder in a closely bundled state, the spaces between the fabric pipes and the outer cylinder at each end thereof being filled with hardened synthetic resin to fix and seal the assembly. The ends of the non-woven fabric pipes are coated with a resin such that the inside coating of resin at the end of the fabric pipes is less than that on the inside thereof.
摘要翻译： 一种改进的管状膜过滤模块，包括外筒和形成在其内部的多个透水性无纺布管，所述无纺布管以紧密捆扎状态插入外筒中，织物之间的空间 管和其两端的外筒充满硬化的合成树脂以固定和密封组件。 无纺布管的端部涂覆有树脂，使得在织物管端部的树脂的内部涂层小于其内部的树脂的内部涂层。
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