专利检索 ap:("ECOLAB USA, INC.") AND inv:"Qing Long Rao" 第 1 页

1.

发明授权
Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking 有权

公开(公告)号：US10145067B2

公开(公告)日：2018-12-04

申请号：US15271441

申请日：2016-09-21

申请人： ECOLAB USA, INC.

发明人： Yulin Zhao , Jun Li , Qing Long Rao , Stephen Ashton , Weiguo Cheng , Aleksandar Todorovic , Alan Smith

IPC分类号： D21H17/37 , D21H21/20 , D21H21/18 , D21H17/67 , D21H21/10 , D21C3/02 , D21C5/00 , D21C5/02 , D21H17/69 , D21H17/00 , D21H17/66

摘要： Methods of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength, and enhancing filler retention in a papermaking process are disclosed. The methods improve the efficiency of drainage aids, wet web strength aids, and/or wet strength aids by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives.