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公开(公告)号：US5269942A
公开(公告)日：1993-12-14
申请号：US424
申请日：1993-01-04
申请人： John C. Harrington, IV , Jen-Chi Chen , Fu Chen
发明人： John C. Harrington, IV , Jen-Chi Chen , Fu Chen
CPC分类号： C02F1/54 , Y10S210/928
摘要： The use of quaternized polyvinylamine for use in clarification of water in a deinking loop of a paper, such as newspaper, recycling operation.
摘要翻译： 使用季铵化聚乙烯胺用于澄清纸的脱墨循环中的水，如报纸，再循环操作。
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公开(公告)号：US5532308A
公开(公告)日：1996-07-02
申请号：US373706
申请日：1995-01-17
IPC分类号： C08F290/04 , C08L51/06 , D21H17/37
CPC分类号： C08F290/046
摘要： A composition and method for improving the drainage and retention characteristics of a paper furnish consisting of a water soluble graft copolymer and bentonite clay. It is preferred that the graft copolymer be added to the furnish prior to at least one shear stage and that the bentonite clay be added after the shear stage.
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3.发明授权Method for improving retention and drainage characteristics in alkaline papermaking 失效改善碱性造纸中保留和排水特性的方法
公开(公告)号：US5415740A
公开(公告)日：1995-05-16
申请号：US217037
申请日：1994-03-24
IPC分类号： C08F290/04 , D21H17/37
CPC分类号： C08F290/046
摘要： A composition and method for improving the drainage and retention characteristics of a paper furnish consisting of a water soluble graft copolymer and bentonite clay. It is preferred that the graft copolymer be added to the furnish prior to at least one shear stage and that the bentonite clay be added after the shear stage.
摘要翻译： 一种用于改善由水溶性接枝共聚物和膨润土组成的纸配料的排水和保留特性的组合物和方法。 优选在至少一个剪切阶段之前将接枝共聚物加入到配料中，并且在剪切阶段之后加入膨润土。
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4.发明授权Method for improving retention and drainage characteristics in alkaline papermaking 失效改善碱性造纸中保留和排水特性的方法
公开(公告)号：US5482595A
公开(公告)日：1996-01-09
申请号：US215983
申请日：1994-03-22
摘要： A method of improving the drainage characteristics of a pulp slurry in a papermaking operation utilizing the sequential steps of adding alum, ionic polyacrylamide and cationic starch. The cationic starch can be added to the slurry prior to or after the primary screen.
摘要翻译： 一种利用添加明矾，离子聚丙烯酰胺和阳离子淀粉的顺序步骤，在造纸操作中提高纸浆的排水特性的方法。 阳离子淀粉可以在主筛网之前或之后添加到浆料中。
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公开(公告)号：US5626718A
公开(公告)日：1997-05-06
申请号：US307969
申请日：1994-09-16
申请人： Irenee J. Philippe , Frank J. Sutman , Thomas E. Taggart , Mary B. K. Letscher , Michael A. Schuster , John C. Harrington, IV
发明人： Irenee J. Philippe , Frank J. Sutman , Thomas E. Taggart , Mary B. K. Letscher , Michael A. Schuster , John C. Harrington, IV
CPC分类号： D21C9/005 , D21C5/025 , D21C9/06 , Y02W30/648
摘要： The present invention is directed to a method for increasing the retention on a washing/thickening device in an aqueous papermaking system. The method generally comprises adding to the furnish solids of the system an effective amount of a cationic polyacrylamide polymer.
摘要翻译： 本发明涉及一种在水性造纸系统中增加洗涤/增稠装置上的保留性的方法。 该方法通常包括向系统的固体物质中加入有效量的阳离子聚丙烯酰胺聚合物。
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