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公开(公告)号：US10035946B2
公开(公告)日：2018-07-31
申请号：US15440966
申请日：2017-02-23
Applicant: Ecolab USA Inc.
Inventor： Mingli Wei , Kevin McDonald , Weiguo Cheng
IPC: E21B43/22 , C09K8/588 , C08F220/56 , E21B43/20
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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公开(公告)号：US09951475B2
公开(公告)日：2018-04-24
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
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.
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公开(公告)号：US11708481B2
公开(公告)日：2023-07-25
申请号：US16772737
申请日：2018-12-13
Applicant: ECOLAB USA INC.
Inventor： Heqing Huang , Mingli Wei , Xiaodong Huang , Jianwei Yuan , David Jordan , Weiguo Cheng
IPC: C08L5/16
CPC classification number: C08L5/16
Abstract: A solution including an associative polymer, a cyclodextrin polymer, and a solvent is provided. The associative polymer is a powder in the absence of the solvent. Additionally, a method of making down an associative polymer powder to form a solution is provided. The method includes blending a mixture of the powder, a cyclodextrin polymer, and a solvent to yield the solution, wherein the powder includes particles having been dry-cut to a median particle size of from about 200 microns to about 10,000 microns. Additionally, a powder product is provided. The powder product includes from about 80 wt. % to about 99.9 wt. % associative polymer; and from about 0.1 wt. % to about 20 wt. % of a cyclodextrin polymer.
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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.
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公开(公告)号：US20150197893A1
公开(公告)日：2015-07-16
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
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。
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Patent Agency Ranking
6.发明申请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拉伸纳米晶体纤维增加保持力，湿度强度和干燥强度在造纸过程中公开(公告)号：US20150041091A1
公开(公告)日：2015-02-12
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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7.发明申请ENHANCEMENT OF WASTEWATER SLUDGE DEWATERING USING SOY FLOUR OR SOY PROTEIN 审中-公开使用大豆蛋白或大豆蛋白增强废水污泥脱水公开(公告)号：US20150034563A1
公开(公告)日：2015-02-05
申请号：US13955963
申请日：2013-07-31
Applicant: ECOLAB USA INC.
Inventor： Prasad Duggirala , Weiguo Cheng , Darlington Mlambo
CPC classification number: C02F1/5263 , C02F1/547 , C02F1/56 , C02F11/14
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 flocculants, soy based components, and surfactants. The soy based components can include, for example, 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絮凝剂，大豆基组分和表面活性剂。 大豆基组分可以包括例如大豆粉和大豆蛋白。
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公开(公告)号：US11214926B2
公开(公告)日：2022-01-04
申请号：US16635122
申请日：2018-07-31
Applicant: ECOLAB USA INC.
Inventor： Robert M. Lowe , Weiguo Cheng , David Jordan , Heqing Huang
Abstract: A method of incorporating a low molecular weight polymer (e.g., polymer strength aid) into an industrial process (e.g., papermaking process) is provided. The method comprises treating an industrial process (e.g., paper sheet precursor) with a powder or wetted powder, wherein the powder comprises a polymer dry polymer (e.g., polymer strength aid), wherein the polymer dry polymer (e.g., polymer strength aid) has a weight average molecular weight of from about 10 kDa to about 2,000 kDa.
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公开(公告)号：US11035080B2
公开(公告)日：2021-06-15
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 , C08F220/56 , C08F230/06 , D21H21/12 , D21H21/28 , D21H21/36 , D21H21/50 , C08F220/06
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.
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公开(公告)号：US20200248409A1
公开(公告)日：2020-08-06
申请号：US16635122
申请日：2018-07-31
Applicant: ECOLAB USA INC.
Inventor： Robert M. Lowe , Weiguo Cheng , David Jordan , Heqing Huang
Abstract: A method of incorporating a low molecular weight polymer (e.g., polymer strength aid) into an industrial process (e.g., papermaking process) is provided. The method comprises treating an industrial process (e.g., paper sheet precursor) with a powder or wetted powder, wherein the powder comprises a polymer dry polymer (e.g., polymer strength aid), wherein the polymer dry polymer (e.g., polymer strength aid) has a weight average molecular weight of from about 10 kDa to about 2,000 kDa.
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