公开(公告)号：WO9736053A3

公开(公告)日：1997-11-06

申请号：PCT/US9704836

申请日：1997-03-25

Applicant: PROCTER & GAMBLE

Inventor： SMITH DAVID JAY ,  HEADLAM MICHAEL MARTYN

IPC: A47K7/00 ,  D21H17/24 ,  D21H17/28 ,  D21H17/29 ,  D21H17/31 ,  D21H17/32 ,  D21H17/37 ,  D21H21/20 ,  D21H23/08

CPC classification number: D21H21/20 ,  D21H17/24 ,  D21H17/28 ,  D21H17/29 ,  D21H17/31 ,  D21H17/32 ,  D21H17/37 ,  D21H17/375 ,  D21H23/08

Abstract: The present invention relates to paper products having temporary wet strength. The paper products contain cellulosic fibers that are treated with a polyaldehyde polymer having free aldehyde groups and a water soluble polyhydroxy polymer. The initial wet strength obtained with the combined use of these materials is significantly greater than that obtained by use of either the polyaldehyde or polyhydroxy polymer alone. At the same time, the wet strength decays at a rate that is rapid enough to enable the paper product to be flushed under conditions of normal use. Preferred polyaldehydes include cationic, aldehyde functionalized starches and cationic, aldehyde functionalized polyacrylamides. Preferred polyhydroxy polymers are polysaccharides having cis-hydroxyl groups in at least a portion of the main polymeric chain (i.e., polymer backbone). Preferred polysaccharides include those derived from one or more sugars selected from mannose, galactose, allose, altrose, gulose, talose, ribose, and lyxose. Economically preferred polysaccharides are guar gum, locust bean gum and ionic derivatives thereof. The polysaccharide is preferably a neutral polysaccharide or a charge balanced mixture of polysaccharides. 00000

Abstract translation: 本发明涉及具有临时湿强度的纸制品。 纸产品含有用具有游离醛基的聚醛聚合物和水溶性多羟基聚合物处理的纤维素纤维。 通过组合使用这些材料获得的初始湿强度显着大于通过单独使用多醛或多羟基聚合物获得的初始湿强度。 同时，湿强度以足够快的速度衰减，使得纸张产品在正常使用条件下被冲洗。 优选的多醛包括阳离子，醛官能化淀粉和阳离子，醛官能化聚丙烯酰胺。 优选的多羟基聚合物是在主聚合物链（即聚合物主链）的至少一部分中具有顺式 - 羟基的多糖。 优选的多糖包括衍生自一种或多种选自甘露糖，半乳糖，阿洛糖，阿卓糖，古洛糖，托洛糖，核糖和莱索糖的糖的那些。 经济上优选的多糖是瓜尔胶，刺槐豆胶及其离子衍生物。 多糖优选为中性多糖或多糖的电荷平衡混合物。 00000

公开(公告)号：WO9736051A3

公开(公告)日：1997-11-06

申请号：PCT/US9704833

申请日：1997-03-25

Applicant: PROCTER & GAMBLE

Inventor： SMITH DAVID JAY ,  HEADLAM MICHAEL MARTYN

IPC: A47K7/00 ,  C07H13/04 ,  C08B31/04 ,  C08B31/18 ,  D21H17/28 ,  D21H19/10 ,  D21H21/20

CPC classification number: C07H13/04 ,  C08B31/04 ,  D21H17/28 ,  D21H21/20

Abstract: A temporary wet strength polymer and compositions for paper products, e.g., toilet tissue, is disclosed. The temporary wet strength polymer is the oxidation product of an esterified polyhydroxy polymer, more preferably of an esterified polysaccharide. The esterified polymer compound is formed by reacting the polyhydroxy polymer with a 1,2-disubstituted alkene compound that has at least one carboxylic acid group. The temporary wet strength polymer provides paper products having an initial wet strength that enables use of the product in the moistened condition, along with a suitable wet strength decay rate.

公开(公告)号：WO9736052A2

公开(公告)日：1997-10-02

申请号：PCT/US9704834

申请日：1997-03-25

Applicant: PROCTER & GAMBLE

Inventor： SMITH DAVID JAY ,  HEADLAM MICHAEL MARTYN

IPC: A47K7/00 ,  C08B15/00 ,  C08B37/00 ,  D21C9/00 ,  D21H11/20 ,  D21H17/24 ,  D21H17/32 ,  D21H21/20 ,  C08B37/12

CPC classification number: D21C9/005 ,  D21H11/20 ,  D21H21/20

Abstract: Paper products having high initial wet strengths are disclosed. The paper products comprise cellulosic fibers having free aldehyde groups, which fibers are combined with a water-soluble polymer having functional groups that are reacted with the aldehyde groups to form bonds joining the fibers. In a preferred embodiment, the cellulosic fibers contain a polysaccharide in which the hydroxyl groups of at least a portion of the repeating units of the polysaccharide are cis-hydroxyl groups, preferred repeating units being mannose and/or galactose. Similarly, the water-soluble polymer is preferably a polysaccharide in which the hydroxyl groups of at least a portion of the repeating units of the polysaccharide are cis-hydroxyl groups. Preferred polysaccharides are derived from one or more sugars selected from mannose, galactose, allose, altrose, gulose, talose and lyxose.

Abstract translation: 公开了具有高初始湿强度的纸制品。 纸制品包括具有游离醛基的纤维素纤维，该纤维与具有与醛基反应的官能团的水溶性聚合物结合，形成连接纤维的粘合剂。 在优选的实施方案中，纤维素纤维含有多糖，其中至少一部分多糖的重复单元的羟基是顺式 - 羟基，优选的重复单元是甘露糖和/或半乳糖。 类似地，水溶性聚合物优选为其中多糖的至少一部分重复单元的羟基为顺式 - 羟基的多糖。 优选的多糖衍生自一种或多种选自甘露糖，半乳糖，阿洛糖，阿卓糖，古洛糖，托洛糖和莱索糖的糖。