公开(公告)号：US4088530A

公开(公告)日：1978-05-09

申请号：US683581

申请日：1976-05-06

申请人： Lock-Lim Chan ,  Joseph F. Schaffer

发明人： Lock-Lim Chan ,  Joseph F. Schaffer

IPC分类号： D21H17/43 ,  D21H3/48

CPC分类号： D21H17/43

摘要： Paper of dry strength is produced by forming an aqueous solution of papermaking cellulose fibers and adding thereto a 90:10 to 98:2 copolymer of acrylamide and maleic acid followed by addition of alum. The use of the acrylamide-maleic acid copolymer allows production of paper at a much broader pH range towards the alkaline side which eliminates the need for close control of pH and which substantially reduces corrosion of the papermaking equipment.

摘要翻译： 通过形成造纸纤维素纤维的水溶液并向其中加入丙烯酰胺和马来酸的90:10至98:2的共聚物，然后加入明矾制备干强度纸。 使用丙烯酰胺 - 马来酸共聚物允许在更宽的pH范围内向碱性侧生产纸，这消除了对pH的密切控制的需要，并且基本上减少了造纸设备的腐蚀。