公开(公告)号：US10731063B2

公开(公告)日：2020-08-04

申请号：US15983571

申请日：2018-05-18

Applicant: Ecolab USA Inc.

Inventor： Gary Samuel Furman, Jr. ,  David J. Castro ,  Christopher Kaley ,  Kevin McDonald ,  Mingli Wei

IPC: C09J179/02 ,  D21F5/18 ,  C09J11/08 ,  D21H21/14

Abstract: Methods and compositions useful in papermaking and tissuemaking applications are provided. Some embodiments of the methods and compositions comprise a polyaminoamide (“PAA”) polymer functionalized with an acrylamidophenyl boronic acid and a crosslinked polyaminoamide functionalized with an acrylamidophenyl boronic acid. The methods and compositions provide useful properties for creping that include good adhesion even under excessively wet conditions, improved film uniformity, and good film durability, while maintaining good film softness and rewettability necessary for efficient runnability of the tissue machine.

公开(公告)号：US10427950B2

公开(公告)日：2019-10-01

申请号：US14960129

申请日：2015-12-04

Applicant: Ecolab USA Inc.

Inventor： Jing Wang ,  Kevin O'Brien ,  Mingli Wei ,  Weiguo Cheng ,  Jinfeng Wang ,  Kevin McDonald ,  Xinyu C. Huang

IPC: C01F7/46 ,  B01D21/01 ,  C08J3/24 ,  C01F7/06 ,  C08F230/06

Abstract: Methods and compositions for improving performance of flocculants in an industrial production process. Methods include pH triggered cross-linking reaction between a flocculating agent, such as dextran, and a composition comprising a boronic acid-containing polymer. The pH trigger can be provided by a fluid having a pH of 8 or more. The production process can be a Bayer Process and the fluid is caustic liquor or slurry in the fluid circuit of the Bayer, wherein the reaction time is reduced over conventional methods and the cross-linked dextran composition effectuates improved flocculation of the trihydrate particles.