公开(公告)号：US10006170B2

公开(公告)日：2018-06-26

申请号：US15229681

申请日：2016-08-05

Applicant: Ecolab USA Inc.

Inventor： Herman Mark Grimm ,  Mei Liu ,  Robert M. Lowe

IPC: D21H21/18 ,  D21H17/37 ,  D21H17/55 ,  D21H21/06 ,  D21H21/10 ,  D21H21/20 ,  C08F220/56

CPC classification number: D21H17/375 ,  C08F220/56 ,  C08F2500/02 ,  C08F2800/10 ,  C08F2810/40 ,  D21H17/55 ,  D21H21/06 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20

Abstract: Disclosed are compositions and methods useful in applications relating to papermaking. The compositions and methods of the present invention comprise aldehyde-functionalized polymers designed to impart high paper strength and enhance water removal during the papermaking process. The aldehyde-functionalized polymers are of relatively low molecular weight, and comprise amino and/or amide groups mono-reacted and di-reacted at a ratio of at least about 1.5 to 1. The low molecular weight polymers of the present invention have the same strength and dewatering performance as corresponding high molecular weight polymers.

公开(公告)号：US09920482B2

公开(公告)日：2018-03-20

申请号：US14507191

申请日：2014-10-06

Applicant: ECOLAB USA INC.

Inventor： Bradley Benz ,  Paul F. Richardson ,  James L. Thomas ,  Mei Liu ,  Robert M. Lowe

IPC: D21H17/38 ,  D21H23/24 ,  D21H17/37 ,  D21H17/18

CPC classification number: D21H17/38 ,  D21H17/18 ,  D21H17/375 ,  D21H17/71 ,  D21H17/72 ,  D21H21/18 ,  D21H23/24

Abstract: The invention provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine containing polymer. The amine containing polymer interacts with materials such as GPAM or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.

公开(公告)号：US09840810B2

公开(公告)日：2017-12-12

申请号：US15601685

申请日：2017-05-22

Applicant: ECOLAB USA INC.

Inventor： David J. Castro ,  Robert M. Lowe ,  Mei Liu

IPC: D21H17/37 ,  D21H17/28 ,  D21H23/24 ,  D21H17/33

CPC classification number: D21H17/375 ,  D21H17/28 ,  D21H17/33 ,  D21H17/37 ,  D21H21/18 ,  D21H23/22 ,  D21H23/24

Abstract: The disclosure provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine-containing polymer. The amine-containing polymer interacts with materials such as glyoxalated polyacrylamide or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.

公开(公告)号：US20170121909A1

公开(公告)日：2017-05-04

申请号：US15397969

申请日：2017-01-04

Applicant: ECOLAB USA INC.

Inventor： Weiguo Cheng ,  Mei Liu ,  Gary S. Furman, JR. ,  Robert M. Lowe

IPC: D21H17/37 ,  D21H21/20 ,  D21H23/14 ,  D21H17/29

CPC classification number: D21H17/375 ,  D21H17/28 ,  D21H17/29 ,  D21H21/18 ,  D21H21/20 ,  D21H23/14

Abstract: The disclosure provides methods and compositions for increasing the dry strength of paper. The invention utilizes a tailored strength agent whose size and shape is tailored to fit into the junction points between flocs of a paper sheet. The strength agents is in contact with the slurry for just enough time to collect at the junction points but not so much that it can migrate away from there.

公开(公告)号：US09567708B2

公开(公告)日：2017-02-14

申请号：US14536277

申请日：2014-11-07

Applicant: ECOLAB USA INC.

Inventor： Weiguo Cheng ,  Mei Liu ,  Gary S. Furman ,  Robert M. Lowe

IPC: D21H17/37 ,  D21H21/18 ,  D21H17/28 ,  D21H23/14

CPC classification number: D21H17/375 ,  D21H17/28 ,  D21H17/29 ,  D21H21/18 ,  D21H21/20 ,  D21H23/14

Abstract: The invention provides methods and compositions for increasing the dry strength of paper. The invention utilizes a tailored strength agent whose size and shape is tailored to fit into the junction points between flocs of a paper sheet. The strength agents is in contact with the slurry for just enough time to collect at the junction points but not so much that it can migrate away from there.

Abstract translation: 本发明提供了增加纸的干强度的方法和组合物。 本发明利用定制的强度剂，其尺寸和形状被调整成适合于纸张絮状物之间的连接点。 强度剂与浆料接触足够的时间在接合点收集，但不能太多，从而可以从那里迁移。