公开(公告)号：US09975781B2

公开(公告)日：2018-05-22

申请号：US15105801

申请日：2014-12-17

Applicant: ECOLAB USA INC.

Inventor： Wen Bai ,  Jian Xu ,  Jia Wu ,  Zhi Chen ,  Jian Kun Shen ,  Raymond D. Miller, Jr. ,  Jane B. Wong Shing

IPC: D21H21/10 ,  C01B33/146 ,  D21H17/68 ,  B01J13/00 ,  D21H11/02 ,  C09C1/30

CPC classification number: C01B33/146 ,  B01J13/00 ,  C09C1/3045 ,  C09C1/3063 ,  D21H11/02 ,  D21H17/68 ,  D21H21/10

Abstract: The present invention relates to colloidal silicas having a low S-value and a high solids content, the preparation thereof, and the use thereof in the production of paper. When used in the production of paper, the colloidal silicas of the invention exhibit good retention and drainage performance so that they can be used in lower amounts compared to conventional colloidal silicas. The present invention also relates to an apparatus and a method for producing such activated colloidal silicas.

公开(公告)号：US20190055695A1

公开(公告)日：2019-02-21

申请号：US15779767

申请日：2016-11-29

Applicant: Ecolab USA Inc.

Inventor： Jia Wu ,  Yulin Zhao ,  Xiao Zhang

IPC: D21H17/15 ,  D21H21/06 ,  B31F1/14

Abstract: The present invention relates to a release aid that includes at least one succinic anhydride derivative for use in a papermaking process. For example, the release aid of the present invention is particularly useful for use in a paperweb creping process. The present invention also relates to a paperweb creping method that includes a release aid comprising at least one succinic anhydride.