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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：US10538880B2
公开(公告)日：2020-01-21
申请号：US15642885
申请日：2017-07-06
Applicant: Ecolab USA Inc.
Inventor： Qing Qing Yuan , Qun Dong , Zhi Chen , Jian Kun Shen
IPC: D21H17/00 , D21H17/25 , D21H17/41 , D21H21/02 , D21H17/26 , D21H17/29 , D21H17/56 , D21C9/08 , D21H17/45 , D21H17/66
Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
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公开(公告)号：US10087081B2
公开(公告)日：2018-10-02
申请号：US13791627
申请日：2013-03-08
Applicant: Ecolab USA Inc.
Inventor： Jane B. Wong Shing , Zhi Chen , Dennis MacDonald , Ronald S. Doles , Wen Bai , Raymond D. Miller, Jr.
IPC: D21H17/68 , D21H21/10 , C01B33/148
Abstract: The invention provides a method for improving the effectiveness of colloidal silica. The method involves removing enough charged impurities from the colloid to prevent the charged particles from causing the colloid to become a viscous gel. The method however also involves not removing too many charged particles so the silica material doesn't gel by cross-linking with itself. This method is quite effective because it recognizes that materials that have accumulated during the formation of the colloid do perform an important function, but they can perform better at a lower concentration.
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公开(公告)号：US09975781B2
公开(公告)日：2018-05-22
申请号：US15105801
申请日：2014-12-17
Applicant: ECOLAB USA INC.
Inventor： Wen Bai , Jian Xu , Jia Wu , Zhi Chen , Jian Kun Shen , Raymond D. Miller, Jr. , Jane B. Wong Shing
CPC classification number: C01B33/146 , B01J13/00 , C09C1/3045 , C09C1/3063 , D21H11/02 , D21H17/68 , D21H21/10
Abstract: The present invention relates to colloidal silicas having a low S-value and a high solids content, the preparation thereof, and the use thereof in the production of paper. When used in the production of paper, the colloidal silicas of the invention exhibit good retention and drainage performance so that they can be used in lower amounts compared to conventional colloidal silicas. The present invention also relates to an apparatus and a method for producing such activated colloidal silicas.
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公开(公告)号：US10889939B2
公开(公告)日：2021-01-12
申请号：US16064262
申请日：2016-12-26
Applicant: Ecolab USA Inc.
Inventor： Zhi Chen , Jinhai Xiao , Xiaofeng Zhang , Kun Hou , James L. Thomas , Kaihong Huang
IPC: D21H21/16 , D21H17/15 , D21H17/66 , D21H17/62 , D21H17/17 , D21H17/28 , D21H17/00 , D21H23/24 , D21H23/26 , D21H23/28 , D21H17/14 , D21H17/70
Abstract: The present application discloses a sizing method for making paper. An alkenyl succinic anhydride (ASA) is added to a papermaking process. An aluminum salt is added in one or more process steps during the papermaking process. Preferably, the aluminum salt is an aluminum salt which can generate free aluminum ion in aqueous solution. The sizing method of the present application enhances the usage efficiency of a sizing agent and the aluminum salt, as well as provides paper having a high moisture content.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170314203A1
公开(公告)日：2017-11-02
申请号：US15642885
申请日：2017-07-06
Applicant: Ecolab USA Inc.
Inventor： Qing Qing Yuan , Qun Dong , Zhi Chen , Jian Kun Shen
IPC: D21H17/00 , D21H17/66 , D21H17/56 , D21H17/45 , D21H17/41 , D21H17/29 , D21H17/26 , D21H17/25 , D21H21/02 , D21C9/08
CPC classification number: D21H17/74 , D21C9/08 , D21H17/00 , D21H17/25 , D21H17/26 , D21H17/29 , D21H17/41 , D21H17/45 , D21H17/56 , D21H17/66 , D21H21/02
Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
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7.发明申请METHOD AND COMPOSITION FOR DETACKIFYING ORGANIC CONTAMINANTS IN THE PROCESS OF PULPING AND PAPERMAKING 审中-公开在造纸和造纸过程中排除有机污染物的方法和组合公开(公告)号：US20150159328A1
公开(公告)日：2015-06-11
申请号：US14351830
申请日：2013-05-09
Applicant: ECOLAB USA INC.
Inventor： Qing Qing Yuan , Jian K. Shen , Quan Dong , Zhi Chen
CPC classification number: D21H17/74 , D21C9/08 , D21H17/00 , D21H17/25 , D21H17/26 , D21H17/29 , D21H17/41 , D21H17/45 , D21H17/56 , D21H17/66 , D21H21/02
Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the de position of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
Abstract translation: 本发明公开了一种在制浆和造纸过程中对有机污染物进行脱粘的方法和用于其的组合物。 具体来说，本发明公开了制浆造纸工艺的水循环系统可以提供较少量的非离子纤维素醚和阳离子凝结剂，通过其可以在预处理的协同作用下抑制有机污染物的脱位， 凝结和脱胶。
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公开(公告)号：US11421260B2
公开(公告)日：2022-08-23
申请号：US16629878
申请日：2017-07-12
Applicant: ECOLAB USA INC.
Abstract: Provided is a method for detecting the presence of bacterial spores by measuring adenosine diphosphate (ATP) production over time. Spores are detected by converting adenosine monophosphate (AMP) and adenosine diphosphate (ADP) to ATP.
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公开(公告)号：US20190016880A1
公开(公告)日：2019-01-17
申请号：US16066960
申请日：2016-12-19
Applicant: Ecolab USA Inc.
Inventor： Kun Hou , Yongquan Dong , Bo Zhu , Zhi Chen
IPC: C08L33/26 , C08F220/56 , D21H17/45 , D21H21/16 , D21H23/04
Abstract: The present invention is directed to an amphoteric polymer, a method for preparing an amphoteric polymer, use of the amphoteric polymer for emulsifying an alkenyl succinic anhydride. The present invention also provides an alkenyl succinic anhydride emulsion prepared using the amphoteric polymer, and a method for sizing paper using an alkenyl succinic anhydride emulsion prepared using the amphoteric polymer. The amphoteric polymer of the present invention is obtained by copolymerization of cationic monomers, non-ionic monomers, and anionic monomers.
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公开(公告)号：US20190003125A1
公开(公告)日：2019-01-03
申请号：US16064262
申请日：2016-12-26
Applicant: Ecolab USA Inc.
Inventor： Zhi Chen , Jinhai Xiao , Xiaofeng Zhang , Kun Hou , James L. Thomas , Kaihong Huang
Abstract: The present application discloses a sizing method for making paper. An alkenyl succinic anhydride (ASA) is added to a papermaking process. An aluminum salt is added in one or more process steps during the papermaking process. Preferably, the aluminum salt is an aluminum salt which can generate free aluminum ion in aqueous solution. The sizing method of the present application enhances the usage efficiency of a sizing agent and the aluminum salt, as well as provides paper having a high moisture content.
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