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11.发明授权公开(公告)号：US10697121B2
公开(公告)日：2020-06-30
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 μm to about 150 μm. 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：US10132040B2
公开(公告)日：2018-11-20
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
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.
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公开(公告)号：US20170355846A1
公开(公告)日：2017-12-14
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 , C07C219/08 , C07D307/04 , C07C305/04 , C08G65/00 , C08F220/56 , C08K5/3435 , C08F220/28
CPC classification number: C08L55/005 , C07C219/08 , C07C305/04 , C07D307/04 , C08F220/56 , C08F2220/285 , C08G65/002 , C08K5/3435 , D21H17/37 , D21H17/375 , D21H21/18 , D21H21/20 , D21H21/24 , C08F220/34 , C08F2220/286 , C08F226/02
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.
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14.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：US09303360B2
公开(公告)日：2016-04-05
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
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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15.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：US20150041088A1
公开(公告)日：2015-02-12
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
IPC: D21H17/53
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
公开(公告)号：US08894817B1
公开(公告)日：2014-11-25
申请号：US14157437
申请日：2014-01-16
Applicant: Ecolab USA Inc.
Inventor： Weiguo Cheng , Mei Liu
CPC classification number: D21H17/375 , D21H17/28 , 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。
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公开(公告)号：US11155478B2
公开(公告)日：2021-10-26
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 , C08F220/06 , C08F220/56 , C10G1/04 , C02F1/00 , C02F101/10 , C02F103/10 , B03D3/06
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.
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公开(公告)号：US20210230400A1
公开(公告)日：2021-07-29
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
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：US20210040309A1
公开(公告)日：2021-02-11
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: C08L55/00 , D21H21/20 , D21H17/37 , D21H21/24 , D21H21/18 , C07C219/08 , C07C305/04 , C07D307/04 , C08F220/56 , C08G65/00 , C08K5/3435
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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公开(公告)号：US10145067B2
公开(公告)日：2018-12-04
申请号：US15271441
申请日：2016-09-21
Applicant: ECOLAB USA, INC.
Inventor： Yulin Zhao , Jun Li , Qing Long Rao , Stephen Ashton , Weiguo Cheng , Aleksandar Todorovic , Alan Smith
IPC: D21H17/37 , D21H21/20 , D21H21/18 , D21H17/67 , D21H21/10 , D21C3/02 , D21C5/00 , D21C5/02 , D21H17/69 , D21H17/00 , D21H17/66
Abstract: Methods of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength, and enhancing filler retention in a papermaking process are disclosed. The methods improve the efficiency of drainage aids, wet web strength aids, and/or wet strength aids by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives.
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