公开(公告)号：US10920065B2

公开(公告)日：2021-02-16

申请号：US15620176

申请日：2017-06-12

Applicant: Ecolab USA Inc.

Inventor： Heqing Huang ,  David Jordan ,  Robert M. Lowe ,  Jeffrey Cramm ,  Weiguo Cheng ,  Mingli Wei

IPC: C08L55/00 ,  D21H21/20 ,  D21H17/37 ,  D21H21/24 ,  D21H21/18 ,  C07C219/08 ,  C07C305/04 ,  C07D307/04 ,  C08F220/56 ,  C08G65/00 ,  C08K5/3435 ,  C08F220/28

Abstract: The invention provides an associative polymer, a powder, and a process for making a powder comprising, networking one or more associative polymer(s) and one or more optional surfactant(s) to form a wet gel, and forming a powder from the wet gel, wherein the associative polymer(s) have a weight average molecular weight of from about 10 kDa to about 2,000 kDa.

公开(公告)号：US20200255569A1

公开(公告)日：2020-08-13

申请号：US16635125

申请日：2018-07-31

Applicant: ECOLAB USA INC.

Inventor： Heqing Huang ,  Cheng Sung Huang ,  Weiguo Cheng

IPC: C08F220/56 ,  C08J3/05 ,  D21H17/37 ,  D21H21/18

Abstract: A process for making down a powder is provided. The process comprises making down a powder comprising one or more acrylamide-based polymer(s) to form a made down powder solution, comprising blending a mixture of the powder and a solvent for no more than about 15 minutes to yield the made down powder solution, wherein the powder comprises particles having been dry-cut to a median particle size of from about 200 microns to about 10,000 microns.

公开(公告)号：US20200024148A1

公开(公告)日：2020-01-23

申请号：US16587775

申请日：2019-09-30

Applicant: Ecolab USA Inc.

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

IPC: C01F7/46 ,  C01F7/06 ,  C08F230/06 ,  C01F7/14 ,  C01F7/47 ,  B01D21/01 ,  C08J3/24

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.

公开(公告)号：US20180016166A1

公开(公告)日：2018-01-18

申请号：US15648891

申请日：2017-07-13

Applicant: Ecolab USA Inc.

Inventor： Christopher Ryan Greulich ,  Kevin McDonald ,  Weiguo Cheng

IPC: C02F1/56 ,  C08F220/56 ,  C08F220/06 ,  C02F101/10 ,  C02F103/10

CPC classification number: C02F1/56 ,  C02F2001/007 ,  C02F2101/10 ,  C02F2103/10 ,  C08F220/06 ,  C08F220/56

Abstract: A transitional treatment composition and methods of treating coal refuse are provided. The transitional treatment composition comprises an anionic acrylate-acrylamide copolymer having from about 30 mole percent to about 50 mole percent (meth)acrylate, from about 50 mole percent to about 70 mole percent (meth)acrylamide, and a reduced specific viscosity of from about 18 dL/g to about 30 dL/g. The transitional treatment composition can be made down in an aqueous liquid.

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。

公开(公告)号：US20160200600A1

公开(公告)日：2016-07-14

申请号：US14596899

申请日：2015-01-14

Applicant: Ecolab USA Inc.

Inventor： Prasad Y. Duggirala ,  Weiguo Cheng ,  Darlington Mlambo ,  Tarun Kumar Bera ,  Luiz Wanderley Bratfisch Pace

IPC: C02F1/52 ,  C02F1/54 ,  C02F1/56

CPC classification number: C02F1/5263 ,  C02F1/5236 ,  C02F1/54 ,  C02F1/547 ,  C02F1/56 ,  C02F11/14 ,  C02F2305/04

Abstract: Dewatering agents and methods of dewatering wastewater slurries are provided. Also disclosed are methods for improving the separation of solids from water. The water may be produced water, raw water, or wastewater, for example. The dewatering agents can be in solutions and the dewatering agent solutions may include various components in addition to soy protein, soy flour or a combination of soy flour and soy protein.

Abstract translation: 提供脱水剂和脱水废水浆料的方法。 还公开了改善固体与水分离的方法。 水可以是例如水，原水或废水。 脱水剂可以是溶液，脱水剂溶液可以包括大豆蛋白，大豆粉或大豆粉和大豆蛋白的组合之外的各种组分。

公开(公告)号：US08858759B1

公开(公告)日：2014-10-14

申请号：US13938845

申请日：2013-07-10

Applicant: Ecolab USA Inc.

Inventor： Prasad Duggirala ,  Weiguo Cheng ,  Luiz W. Pace

IPC: D21H17/22 ,  D21H21/10 ,  D21H21/50 ,  D21H17/24

CPC classification number: D21H17/24 ,  D21H17/22 ,  D21H17/37 ,  D21H17/375 ,  D21H21/10

Abstract: Methods and compositions for improving dewatering efficiency during a papermaking or pulp drying process are disclosed. The methods can include a step of adding a dewatering agent solution to a location on a paper machine or pulp drying machine. The dewatering agent solution can include a soy based component. The soy based component can be soy flour or soy protein. The dewatering agent solution can be added to a wet end location of the pulp drying machine or paper machine or it can be sprayed onto a paper sheet prior to entering the press section of a paper machine. Additional dewatering agent solutions can also be added. The additional dewatering agent solutions can include cationic polymers or surfactants.

Abstract translation: 公开了在造纸或纸浆干燥过程中改善脱水效率的方法和组合物。 该方法可以包括将脱水剂溶液添加到造纸机或纸浆干燥机上的位置的步骤。 脱水剂溶液可以包括大豆基组分。 大豆基成分可以是大豆粉或大豆蛋白。 脱水剂溶液可以添加到纸浆干燥机或造纸机的湿端位置，或者可以在进纸机的压榨部分之前喷洒到纸张上。 还可添加额外的脱水剂溶液。 额外的脱水剂溶液可以包括阳离子聚合物或表面活性剂。