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公开(公告)号：US5342894A
公开(公告)日：1994-08-30
申请号：US852366
申请日：1992-03-13
摘要： Graft copolymers of .epsilon.-caprolactam are made by a process in which .epsilon.-caprolactam is polymerized in the presence of a copolymer of an aliphatic acrylate and an ethylenically unsaturated carboxylic acid, such as n-butylacrylate and acrylic acid. Such grafted polymers which have nylon-6 side chains grafted onto the acrylate polymer backbone are useful as hot melt adhesives. In the process for preparing these polymers, the backbone polymer is formed initially by solution polymerization at a moderate temperature and the .epsilon.-caprolactam is then added and the temperature increased in the presence of an acidic catalyst. .epsilon.-Caprolactam can be used as the solvent in the polymerization of the backbone polymer.
摘要翻译： ε-己内酰胺的接枝共聚物通过其中ε-己内酰胺在脂族丙烯酸酯和烯键式不饱和羧酸的共聚物如丙烯酸正丁酯和丙烯酸的共聚物存在下聚合的方法制备。 具有接枝到丙烯酸酯聚合物主链上的尼龙-6侧链的这种接枝聚合物可用作热熔粘合剂。 在制备这些聚合物的方法中，主要聚合物最初通过在中等温度下的溶液聚合形成，然后加入ε-己内酰胺并在酸性催化剂存在下升高温度。 ε-己内酰胺可用作主链聚合物聚合中的溶剂。
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公开(公告)号：US5352511A
公开(公告)日：1994-10-04
申请号：US153339
申请日：1993-11-15
CPC分类号： B01D67/0088 , B01D39/083 , C08F8/00 , D06N3/047 , B01D2239/0421 , B01D2239/0471 , B01D2239/1208 , C08F2810/20 , Y10T428/249958 , Y10T428/3154 , Y10T428/31544
摘要： A fluid filtration material made of a porous substrate, e.g. a membrane or a fabric, that is coated with a fluorinated copolymer that contains recurring vinyl alcohol units that have been reacted with a monoepoxide to aid in preventing loss of hydrophilicity in the coated material.
摘要翻译： 由多孔基材制成的流体过滤材料，例如 涂覆有包含与单环氧化物反应的重复乙烯醇单元的氟化共聚物以有助于防止涂层材料中的亲水性丧失的膜或织物。
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公开(公告)号：US5354587A
公开(公告)日：1994-10-11
申请号：US153115
申请日：1993-11-15
申请人： Dilip R. Abayasekara
发明人： Dilip R. Abayasekara
IPC分类号： B01D69/06 , B01D19/00 , B01D67/00 , B01D71/32 , B01D71/38 , C08F8/08 , C08J5/04 , C08J9/40 , B29D22/00
CPC分类号： B01D67/0088 , B01D19/0031 , C08F8/00 , C08J9/405 , C08F2810/20 , Y10T428/1379 , Y10T428/24331 , Y10T428/31544 , Y10T442/2484
摘要： A fluid filtration material made of a porous substrate, e,g. a membrane or a fabric that is coated with a fluorinated copolymer that contains recurring vinyl alcohol units to impart hydrophilicity. The material is crosslinked with multifunctional epoxides to maintain hydrophilicity on exposure to heat or solvent.
摘要翻译： 由多孔基材制成的流体过滤材料，例如， 涂覆有含有重复的乙烯醇单元以赋予亲水性的含氟共聚物的膜或织物。 该材料与多功能环氧化物交联，以保持暴露于热或溶剂中的亲水性。
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公开(公告)号：US5209850A
公开(公告)日：1993-05-11
申请号：US901318
申请日：1992-06-19
CPC分类号： B01D67/0088 , C08J9/42 , C08J2327/12 , C08J2475/00 , Y10S264/48 , Y10S264/62
摘要： Normally hydrophobic fluoropolymer porous membranes having continuous pores are rendered hydrophilic by coating the pore interior with a mixture of at least one fluoroaliphatic surfactant and at least one hydrophilic but substantially water-insoluble polyurethane.
摘要翻译： 具有连续孔的常规疏水性含氟聚合物多孔膜通过用至少一种氟代脂族表面活性剂和至少一种亲水但基本上不溶于水的聚氨酯的混合物涂覆孔内而变得亲水。
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