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公开(公告)号：US20170342663A1
公开(公告)日：2017-11-30
申请号：US15537018
申请日：2015-12-09
Applicant: Ecolab USA Inc.
Inventor： Meng Zhang , Na Xu , Jun Li , Yulin Zhao
CPC classification number: D21H23/10 , B01F2013/1091 , C08J3/005 , C08J3/21 , C08J2333/26 , C08J2433/26 , D21H17/375 , D21H21/18 , D21H21/20 , D21H23/06 , D21H23/08 , G05B13/00 , G05D21/02
Abstract: An on-line control and reaction process for pH adjustment and a control device for automatically adjusting pH value are provided. The process includes mixing a first enhancer and a second enhancer, optionally after diluting the first enhancer and/or the second enhancer with water, to form a mixture, setting a base pH value (δ1) and a target pH value (δ2), and adding pH adjuster into the mixture via a pH control unit and mixing to obtain a product with the target pH value. The pH control unit adjusts the adding of the pH adjuster by measuring or inputting certain parameters.
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12.发明申请Paper-Making Aid Composition and Process for Increasing Ash Retention of Finished Paper 有权造纸助剂组合物和增加成品纸灰分保留性的方法公开(公告)号：US20160230346A1
公开(公告)日：2016-08-11
申请号：US15021490
申请日：2014-09-12
Applicant: ECOLAB USA INC.
Inventor： Bo Zhu , Na Xu , Meng Zhang , Yulin Zhao
CPC classification number: D21H21/18 , D21H17/375
Abstract: A paper-making aid composition comprising dialdehyde-modified polyacrylamide-type strengthening agent, polyacrylamide-type strengthening agent and water and having a pH value of 6 or more is provided. A method of paper-making by using the paper-making aid composition is also provided.
Abstract translation: 提供了包含二醛改性的聚丙烯酰胺型强化剂，聚丙烯酰胺型强化剂和水，pH值为6以上的造纸助剂组合物。 还提供了使用造纸助剂组合物的造纸方法。
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Patent Agency Ranking
公开(公告)号：US10422079B2
公开(公告)日：2019-09-24
申请号：US15119517
申请日：2015-02-05
Applicant: ECOLAB USA INC.
Inventor： Wenli Tu , Yumei Lu , Zhi Chen , Yulin Zhao
Abstract: The present invention provides a method for preserving recycled fiber by using biocides and a method for manufacturing paper using recycled fiber. The method for manufacturing paper, using recycled fiber as a raw material, comprises pulping procedure: pulping the raw material containing recycled fiber, and papermaking procedure: producing the paper with the pulp slurry obtained in the pulping procedure; wherein the total starch content of recycled fiber is measured before recycled fiber is pulped, and when the total starch content of recycled fiber is higher than a predetermined value, one or more biocides are added during the pulping procedure.
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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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公开(公告)号：US09873983B2
公开(公告)日：2018-01-23
申请号：US15021479
申请日：2014-09-12
Applicant: Ecolab USA Inc.
Inventor： Bo Zhu , Meng Zhang , Jun Li , Na Xu , Yulin Zhao
CPC classification number: D21H17/375 , D21H17/37 , D21H21/20
Abstract: The invention provides a process for paper-making comprising adding to pulp slurry at least a first aqueous liquid and a second aqueous liquid so as to obtain a paper stock; forming the paper stock so as to obtain a wet paper web; pressing and draining the wet paper web so as to obtain a wet paper sheet; and drying the wet paper sheet so as to obtain a paper sheet. Correspondingly, the invention provides an aid composition for paper-making.
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16.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：US20160222590A1
公开(公告)日：2016-08-04
申请号：US15021479
申请日：2014-09-12
Applicant: Ecolab USA Inc.
Inventor： Bo Zhu , Meng Zhang , Jun Li , Na Xu , Yulin Zhao
CPC classification number: D21H17/375 , D21H17/37 , D21H21/20
Abstract: The invention provides a process for paper-making comprising adding to pulp slurrry at least a first aqueous liquid and a second aqueous liquid so as to obtain a paper stock; forming the paper stock so as to obtain a wet paper web; pressing and draining the wet paper web so as to obtain a wet paper sheet; and drying the wet paper sheet so as to obtain a paper sheet. Correspondingly, the invention provides an aid composition for paper-making.
Abstract translation: 本发明提供了一种造纸方法，其包括向纸浆中添加至少第一含水液体和第二含水液体，以获得纸料; 形成纸料以获得湿纸幅; 压榨并排干湿纸幅以获得湿纸张; 并干燥湿纸片以获得纸张。 相应地，本发明提供了一种用于造纸的辅助组合物。
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