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公开(公告)号：US10000393B2
公开(公告)日：2018-06-19
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
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.
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22.发明申请公开(公告)号：US20170328004A1
公开(公告)日：2017-11-16
申请号：US15531211
申请日：2015-10-27
Applicant: Ecolab USA Inc.
Inventor： Qinglong Rao , Yulin Zhao , Weiguo Cheng , Stephen B. Ashton , Aleksandar Todorovic , Alan Smith
Abstract: A process for flocculating filler particles in water is provided. The process comprises adding a flocculant to a mixture comprising filler particles and water, wherein the flocculant has a reduced specific viscosity (“RSV”) of from about 5 dL/g to about 16 dL/g, a viscosity average molecular weight of from about 1,200,000 to about 7,500,000, and a cationic charge of from about 5 mol % to about 50 mol %. Flocs formed by flocculation of the filler particles and the flocculant have a median particle size of from about 10 um to about 150 um. The filler is not precipitated calcium carbonate alone. The flocs provided by the process are useful in increasing ash content of a paper product.
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公开(公告)号：US20170240799A1
公开(公告)日：2017-08-24
申请号：US15440966
申请日：2017-02-23
Applicant: Ecolab USA Inc.
Inventor： Mingli Wei , Kevin McDonald , Weiguo Cheng
IPC: C09K8/588 , E21B43/20 , C08F220/56
CPC classification number: C09K8/588 , C08F220/56 , E21B43/20 , C08F220/06 , C08F220/58 , C08F2220/585
Abstract: Emulsions of mobility control polymers can be used to increase recovery of crude oil from a subterranean hydrocarbon-containing formation. A flooding fluid comprising the polymer emulsions are injected into a well that is in contact with the subterranean hydrocarbon-containing formation. The polymers can be temporarily cross-linked via hydrolyzable crosslinking moieties derived from a multifunctional hydrazide, a multifunctional amine, a multifunctional hydroxylamine, or a combination thereof and have improved injectivity into the well; the improved injectivity can be measured in terms of the flooding fluid's filter ratio, flow rate, and viscosity.
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24.发明申请USE OF NANOCRYSTALINE CELLULOSE AND POLYMER GRAFTED NANOCRYSTALINE CELLULOSE FOR INCREASING RETENTION IN PAPERMAKING PROCESS 审中-公开使用纳米晶体纤维素和聚合物拉伸纳米晶体纤维增加造纸过程中的保留公开(公告)号：US20160312410A1
公开(公告)日：2016-10-27
申请号：US15201926
申请日：2016-07-05
Applicant: ECOLAB USA INC.
Inventor： David J. Castro , Rangarani Karnati , Shawnee M. Wilson , Weiguo Cheng , Mei Liu , Zhiyi Zhang
CPC classification number: D21H17/53 , D21H11/18 , D21H17/36 , D21H17/37 , D21H17/375 , D21H21/10 , D21H21/18 , D21H21/20 , D21H23/22
Abstract: Methods and compositions for improving the characteristics of paper substrates are disclosed. The methods involve adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.
Abstract translation: 公开了改善纸基材特性的方法和组合物。 所述方法包括向纸基底添加NCC-聚合物。 NCC聚合物具有独特的化学性质，其导致纸基材的湿强度，干强度和排水保持性能的改善。
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25.发明授权Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process 有权使用纳米晶体纤维素和聚合物接枝纳米晶纤维素来增加造纸过程中的保留性公开(公告)号：US09410288B2
公开(公告)日：2016-08-09
申请号：US13962556
申请日：2013-08-08
Applicant: Ecolab USA Inc.
Inventor： David A. Castro , Rangarani Karnati , Shawnee M. Wilson , Weiguo Cheng , Mei Liu , Zhiyi Zhang
CPC classification number: D21H17/53 , D21H11/18 , D21H17/36 , D21H17/37 , D21H17/375 , D21H21/10 , D21H21/18 , D21H21/20 , D21H23/22
Abstract: The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.
Abstract translation: 本发明提供了改善纸基材特性的方法和组合物。 该方法包括向纸基底添加NCC-聚合物。 NCC聚合物具有独特的化学性质，其导致纸基材的湿强度，干强度和排水保持性能的改善。
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Patent Agency Ranking
26.发明授权Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking process 有权使用纳米晶体纤维素和聚合物接枝纳米晶纤维素来增加造纸过程中的保留力，湿强度和干强度公开(公告)号：US09034145B2
公开(公告)日：2015-05-19
申请号：US14042888
申请日：2013-10-01
Applicant: Ecolab USA Inc.
Inventor： David J. Castro , Rangarani Karnati , Shawnee M. Wilson , Weiguo Cheng , Mei Liu , Zhiyi Zhang
CPC classification number: D21H21/20 , D21H17/25 , D21H17/375 , D21H21/10
Abstract: The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.
Abstract translation: 本发明提供了改善纸基材特性的方法和组合物。 该方法包括向纸基底添加NCC-聚合物。 NCC聚合物具有独特的化学性质，其导致纸基材的湿强度，干强度和排水保持性能的改善。
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27.发明申请USE OF NANOCRYSTALINE CELLULOSE AND POLYMER GRAFTED NANOCRYSTALINE CELLULOSE FOR INCREASING RETENTION IN PAPERMAKING PROCESS 有权使用纳米晶体纤维素和聚合物拉伸纳米晶体纤维增加造纸过程中的保留公开(公告)号：US20150041089A1
公开(公告)日：2015-02-12
申请号：US13962569
申请日：2013-08-08
Applicant: Ecolab USA Inc.
Inventor： David A. Castro , Rangarani Karnati , Shawnee M. Wilson , Weiguo Cheng , Mei Liu , Zhiyi Zhang
IPC: D21H21/10
Abstract: The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.
Abstract translation: 本发明提供了改善纸基材特性的方法和组合物。 该方法包括向纸基底添加NCC-聚合物。 NCC聚合物具有独特的化学性质，其导致纸基材的湿强度，干强度和排水保持性能的改善。
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公开(公告)号：US11939309B2
公开(公告)日：2024-03-26
申请号：US17072573
申请日：2020-10-16
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 , C08F220/56 , C08G65/00 , C08K5/3435 , C08L55/00 , D21H17/37 , D21H21/18 , D21H21/20 , D21H21/24 , C08F220/28
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 , C08F220/56 , C08F220/34 , C08F220/56 , C08F220/34 , C08F220/286 , C08F220/56 , C08F220/34 , C08F220/286 , C08F226/02
Abstract: The invention provides an associative polymer, a powder, and a process for making a powder including, networking one or more associative polymers and one or more optional surfactants 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.
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29.发明授权公开(公告)号：US11718696B2
公开(公告)日：2023-08-08
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 , C08L33/26
CPC classification number: C08F220/56 , C08J3/05 , C08L33/26 , D21H17/375 , D21H21/18 , C08J2333/26 , C08F220/56 , C08F220/34 , C08F220/286
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.
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公开(公告)号：US11208332B2
公开(公告)日：2021-12-28
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
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.
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