公开(公告)号：US20240068168A1

公开(公告)日：2024-02-29

申请号：US18456818

申请日：2023-08-28

Applicant: ECOLAB USA Inc.

Inventor： Mingli WEI ,  Heqing HUANG ,  David Steven JORDAN ,  Weiguo CHENG

IPC: D21H21/18 ,  D21H17/45 ,  D21H17/66 ,  D21H17/67 ,  D21H23/04

CPC classification number: D21H21/18 ,  D21H17/455 ,  D21H17/66 ,  D21H17/675 ,  D21H23/04

Abstract: Compositions and colloidal particles are provided that may be used to improve a papermaking process. The compositions and colloidal particles may include a polymer and an inorganic salt. A papermaking process carried out using the presently disclosed compositions and colloidal particles may produce a paper product that has increased strength properties.

公开(公告)号：US20230078847A1

公开(公告)日：2023-03-16

申请号：US17899255

申请日：2022-08-30

Applicant: ECOLAB USA INC.

Inventor： Mingli WEI ,  Heqing HUANG ,  David Steven JORDAN ,  Weiguo CHENG ,  Mei LIU ,  Zhi CHEN ,  J. Matthew CHUDOMEL ,  Meng ZHANG

IPC: D21H17/00 ,  D21H21/18 ,  D21H17/67 ,  D21H17/38 ,  D21H23/04

Abstract: Compositions and colloidal particles are provided that may be used to improve a papermaking process. The compositions and colloidal particles may include a polymer and an inorganic salt. A papermaking process carried out using the presently disclosed compositions and colloidal particles may produce a paper product that has increased strength properties.

公开(公告)号：US20180327972A1

公开(公告)日：2018-11-15

申请号：US15767082

申请日：2016-12-14

Applicant: ECOLAB USA INC.

Inventor： Zhiyi ZHANG ,  Mingli WEI ,  Kevin McDONALD ,  Weiguo CHENG ,  Pious V. KURIAN

IPC: D21H17/37 ,  D21H21/10 ,  D21H21/12 ,  D21H21/28 ,  D21H21/36 ,  D21H21/50 ,  C08F220/56 ,  C08F220/06 ,  C08F230/06

CPC classification number: D21H17/375 ,  C08F220/06 ,  C08F220/56 ,  C08F230/06 ,  C08F2230/065 ,  D21H17/37 ,  D21H21/10 ,  D21H21/12 ,  D21H21/28 ,  D21H21/36 ,  D21H21/50

Abstract: Papermaking additives that include various polymers and/or micropolymers are disclosed. The micropolymers may have a network structure that can be created by crosslinking or other means. The micropolymer may be an acrylamide based polymer having a boronic acid moiety. The weight average molecular weight of the micropolymer may be greater than 1,000,000.

公开(公告)号：US20240344271A1

公开(公告)日：2024-10-17

申请号：US18681285

申请日：2022-08-19

Applicant: Ecolab USA Inc.

Inventor： David Steven JORDAN ,  Heqing HUANG ,  Weiguo CHENG

IPC: D21H17/45 ,  D21H17/23 ,  D21H17/37 ,  D21H17/55 ,  D21H17/56 ,  D21H21/20 ,  D21H23/04

CPC classification number: D21H17/45 ,  D21H17/23 ,  D21H17/375 ,  D21H17/55 ,  D21H17/56 ,  D21H21/20 ,  D21H23/04

Abstract: A method of increasing paper strength is provided. The method includes adding a lignin-based compound to a pulp slurry: and adding a cationic polymer to the pulp slurry. When added to a pulp slurry. the combination of a lignin-based compound and a cationic polymer produce a comprehensive paper strength increase.

公开(公告)号：US20230313467A1

公开(公告)日：2023-10-05

申请号：US18004445

申请日：2021-07-07

Applicant: ECOLAB USA INC.

Inventor： David Steven JORDAN ,  Heqing HUANG ,  Weiguo CHENG ,  Mingli WEI ,  Mei LIU ,  William Arthur GRANGER

IPC: D21H21/18 ,  D21H23/28 ,  D21H17/42 ,  D21H23/50 ,  D21H27/30 ,  D21H17/44

CPC classification number: D21H21/18 ,  D21H17/42 ,  D21H17/44 ,  D21H23/28 ,  D21H23/50 ,  D21H27/30

Abstract: The present disclosure provides methods and compositions for strengthening paper. The methods may include a step of spraying an anionic polymer onto a paper sheet to increase the strength of the paper sheet. The anionic polymer may have amino groups, amide groups, or a combination of amino groups and amide groups. These groups may be functionalized with an aldehyde. Methods may also include a step of adding a wet end composition to a wet end of the papermaking process.

公开(公告)号：US20240262802A1

公开(公告)日：2024-08-08

申请号：US18443810

申请日：2024-02-16

Applicant: Ecolab USA Inc.

Inventor： Heqing HUANG ,  David JORDAN ,  Robert M. LOWE ,  Jeffrey CRAMM ,  Weiguo CHENG ,  Mingli WEI

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

CPC classification number: C07D307/04 ,  C07C219/08 ,  C07C305/04 ,  C08F220/56 ,  C08G65/002 ,  C08K5/3435 ,  C08L55/005 ,  D21H17/37 ,  D21H17/375 ,  D21H21/18 ,  D21H21/20 ,  D21H21/24 ,  C08F220/285

Abstract: The disclosure provides an associative polymer, a powder, a process for forming a paper sheet, and a process for making a powder. One or more associative polymers and one or more optional surfactants may be networked to form a wet gel and a powder may be formed from the wet gel. The associative polymer may have a weight average molecular weight of from about 10 kDa to about 2,000 kDa. A method may involve adding the powder to a cellulose fiber slurry, draining the cellulose fiber slurry to form a fiber pad, and drying the fiber pad to form a paper sheet.

公开(公告)号：US20170158522A1

公开(公告)日：2017-06-08

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 ,  C08J3/24 ,  B01D21/01

CPC classification number: C01F7/46 ,  B01D21/01 ,  C01F7/0653 ,  C01F7/145 ,  C01F7/148 ,  C01F7/47 ,  C08F230/06 ,  C08J3/246 ,  C08J2305/02 ,  C08J2343/00 ,  C08J2405/02 ,  C08J2443/00 ,  C08F220/56 ,  C08F220/06

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.