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1. 发明授权

US11293143B2 Method for producing single-layer or multi-layer paper 有权
公开(公告)号：US11293143B2
公开(公告)日：2022-04-05
申请号：US16757525
申请日：2018-10-10
申请人： SOLENIS TECHNOLOGIES CAYMAN, L.P.
发明人： Christoph Hamers , Anton Esser , Frans De Bruyn , Christopher Alan Gray , Ralph Isermann
IPC分类号： D21H21/20 , D21F11/04 , D21H17/34 , D21H17/37 , D21H23/50 , D21H27/30
摘要： A method to produce dried single-layer or multi-layer paper is disclosed. The method comprises, for a single-layer paper, preparing and spraying a partially dehydrated first fibrous web with a spray solution or suspension to give a sprayed partially dehydrated first fibrous web, and dehydrating the sprayed partially dehydrated first fibrous web by applying heat to form a dried single-layer paper; or, for a multi-layer paper, preparing and spraying a partially dehydrated layer compound with a spray solution or suspension to form a sprayed layer compound, and dehydrating the sprayed layer compound by applying heat to form a dried multi-layer paper. The spray solution or suspension comprises water and at least one water-soluble polymer P, which is obtained by polymerizing: (i) a monomer of formula H2CCHNHC(0)R1, where R1 is H or C1-C6- alkyl; and (ii) one or more ethylenically unsaturated monomers different from monomer (i).

2. 发明申请

US20220033555A1 METHOD FOR PRODUCING PAPER OR CARDBOARD 有权
公开(公告)号：US20220033555A1
公开(公告)日：2022-02-03
申请号：US17276242
申请日：2019-09-13
申请人： SOLENIS TECHNOLOGIES CAYMAN, L.P. , SOLENIS TECHNOLOGIES, L.P.
发明人： Hans-Joachim HAEHNLE , Anton ESSER , Ralph ISERMANN
IPC分类号： C08F226/02 , D21H17/34 , D21H23/04 , C08F8/12
摘要： Methods for producing paper or cardboard are provided that comprise the steps (A) adding a final polymer A to a first aqueous fibrous material suspension, whereby a second aqueous fibrous material suspension containing final polymer A is created, wherein the final polymer A is obtainable by radical polymerisation of the monomers (i), (ii), (iii), (iv), and (v) as described herein in the amounts provided herein; and hydrolysing the starting polymer V in order to obtain the final polymer A, (B) dewatering the second aqueous fibrous material suspension containing final polymer A on a water-permeable substrate to form a wet paper structure, (C) dewatering the wet paper structure, whereby the paper or the cardboard is formed.

3. 发明授权

US11193240B2 Paper comprising aramid pulp suitable for electrochemical cells, and electrochemical cells made therefrom 有权
公开(公告)号：US11193240B2
公开(公告)日：2021-12-07
申请号：US16984206
申请日：2020-08-04
申请人： DUPONT SAFETY & CONSTRUCTION, INC.
发明人： Mehdi Afshari , Byoung Sam Kang , Brian R. France
IPC分类号： D21H13/26 , D21H17/34 , D21H23/04 , D21H15/10 , D21H21/14 , H01M50/449
摘要： A paper suitable for use as a separator or thermal or fire insulation for use in or with electrochemical cells, and an electrochemical cell comprising the same, the paper having 90 to 99 weight percent aramid fibrous pulp comprising aramid polymer fibrils and 1 to 10 weight percent polyvinylpyrrolidone present as a coating on the surface of the fibers, the paper having a thickness of 10 to 40 micrometers and a tensile strength of at least 15 megapascals or greater.

4. 发明授权

US10906268B2 Fiber sheets and structures comprising fiber sheets 有权
公开(公告)号：US10906268B2
公开(公告)日：2021-02-02
申请号：US16688416
申请日：2019-11-19
申请人： PAPTIC LTD
发明人： Esa Torniainen , Tuomas Mustonen , Karita Kinnunen , Tuomo Hjelt
IPC分类号： B32B1/02 , B32B5/08 , B32B5/06 , B32B5/10 , B32B1/08 , B32B5/18 , B65D65/46 , D21F11/00 , D21H17/20 , D21H13/40 , D21H13/32 , D21H17/37 , B65D65/38 , D21H13/30 , D21H13/38 , D21H17/34
摘要： Fiber sheets, structures comprising the fiber sheets and the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.

5. 发明授权

US10519602B2 Polymer for pitch and stickies deposition control in papermaking 有权
公开(公告)号：US10519602B2
公开(公告)日：2019-12-31
申请号：US16008589
申请日：2018-06-14
申请人： Ecolab USA Inc.
发明人： Xiaojin Harry Li , Sergey M. Shevchenko , Ross Gray , Robert M. Lowe , David Jordan , Zhengang Zong
IPC分类号： D21H21/02 , D21H17/37 , C08F220/22 , C08F220/56 , C08F220/60 , C08F226/04 , D21H21/18 , D21H23/14 , D21H17/34 , D21H17/45 , D21H21/04
摘要： An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).

6. 发明授权

US10065379B2 Dispersible non-woven article and methods of making the same 有权
公开(公告)号：US10065379B2
公开(公告)日：2018-09-04
申请号：US14738192
申请日：2015-06-12
申请人： HANGSTERFER'S LABORATORIES, INC.
发明人： Mark Fretz
IPC分类号： B32B37/00 , B29C70/54 , D21H25/06 , D21H27/00 , D21H17/24 , D21H17/34 , D21H17/36 , D21H17/37 , B29K105/16 , B29K29/00 , B29K511/12 , B29L7/00 , B29L31/00
摘要： A dispersible non-woven article, and methods of making the same. The dispersible non-woven article includes a web of fibers and a dried binder having a plurality of ultrasonic energy treated portions and a plurality of non-ultrasonic energy treated portions. The web of fibers has a basis weight of from about 10 gsm to about 150 gsm. The dried binder comprising a polymer having at least one functional group that is reactive with the fibers. The fibers have at least one functional group that is reactive with the polymer. The article has a cross direction wet tensile strength that is developed by the ultrasonic welding. The article is flushable.

7. 发明申请

US20180080175A1 INCREASED DRAINAGE PERFORMANCE IN PAPERMAKING SYSTEMS USING MICROFIBRILLATED CELLULOSE 审中-公开
公开(公告)号：US20180080175A1
公开(公告)日：2018-03-22
申请号：US15704583
申请日：2017-09-14
申请人： Solenis Technologies, L.P.
发明人： Jonathan M. McKay
IPC分类号： D21H21/10 , D21H17/68 , D21H17/34 , D21H17/45 , D21H13/02 , D21H17/00 , D21J1/00
CPC分类号： D21H21/10 , D21F1/82 , D21H11/18 , D21H11/20 , D21H13/02 , D21H17/34 , D21H17/35 , D21H17/36 , D21H17/375 , D21H17/45 , D21H17/56 , D21H17/68 , D21H17/72 , D21H17/74 , D21J1/00
摘要： A process for the production of paper, board, and cardboard is disclosed. The process results in improved drainage and comprises adding to the wet end of a paper machine (a) microfibrillated cellulose and (b) a coadditive. The coadditive can be one or more of (1) a cationic aqueous dispersion polymer, (2) colloidal silica, (3) bentonite clay and (4) vinylamine-containing polymers or combinations thereof.

8. 发明授权

US09869060B2 Polymer and its preparation and use 有权
公开(公告)号：US09869060B2
公开(公告)日：2018-01-16
申请号：US14646026
申请日：2013-11-20
申请人： KEMIRA OYJ
发明人： Ulf Jonas Anders Engstrom , Per Anders Restorp
IPC分类号： D21H17/37 , C08F220/56 , C08F220/58 , D21H21/18 , D21H17/34
CPC分类号： D21H17/37 , C08F220/56 , C08F220/58 , D21H17/34 , D21H17/375 , D21H21/18
摘要： The present invention relates to a water-soluble cationic acrylamide-based polymer having one or more acetoacetate groups. The invention also relates to a method for producing the water-soluble polymer which comprises polymerizing ethylenically unsaturated monomers in an aqueous phase, wherein the monomers comprise (a) (meth)acrylamide, (b) ethylenically unsaturated cationic monomer, (c) ethylenically unsaturated monomer having one or more acetoacetate groups, and (d) optionally other ethylenically unsaturated monomer. The invention further relates to the use of the water-soluble polymer as a strength agent in the production of paper and board. The invention further relates to a process for producing paper and board which comprises providing an aqueous cellulosic suspension, adding to the suspension water-soluble polymer having one or more ketone groups, and dewatering the obtained suspension. The invention further relates to paper and board comprising the water-soluble polymer of the invention, as well as paper and board produced by the process of the invention.

9. 发明申请

US20160273140A1 FLEXIBLE NON-WOVEN MAT 审中-公开
标题翻译：柔软非织造布
公开(公告)号：US20160273140A1
公开(公告)日：2016-09-22
申请号：US15029665
申请日：2014-10-15
申请人： OCV INTELLECTUAL CAPITAL, LLC
发明人： Jianhul Wu , Paul Aubrey Klett
IPC分类号： D04H1/4218 , E04C2/28 , E04B2/00 , D21H27/18 , D21H13/40 , D21H17/37 , D21H17/34 , D21H21/18 , D04H1/55 , E04C2/06
CPC分类号： D04H1/4218 , B32B5/022 , B32B5/08 , B32B13/14 , B32B2260/021 , B32B2260/046 , B32B2262/0253 , B32B2262/0276 , B32B2262/101 , B32B2307/4026 , B32B2307/54 , B32B2307/724 , B32B2607/00 , D04H1/544 , D04H1/546 , D04H1/55 , D21H13/14 , D21H13/24 , D21H13/40 , D21H17/13 , D21H17/34 , D21H17/37 , D21H17/56 , D21H21/18 , D21H27/18 , E04C2/043 , E04C2/06 , E04C2/16 , E04C2/28 , E04C2/46
摘要： A non-woven chopped fiber mat is provided that includes a mixture of about 10 to about 100 weight percent glass fibers and about 5 to about 50 weight percent synthetic fibers. The non-woven mat includes a binder composition that includes a binder resin and a silane coupling agent. It has been found that the physical properties (e.g., flexibility, tensile strength) of a non-woven mat may be improved by formulating a soft but strong binder composition for use in forming the mat.
摘要翻译：提供了一种非织造短切纤维毡，其包括约10至约100重量百分比的玻璃纤维和约5至约50重量％的合成纤维的混合物。无纺布垫包括粘合剂组合物，其包含粘合剂树脂和硅烷偶联剂。已经发现，通过配制用于形成垫的柔软但强的粘合剂组合物，可以改善无纺毡的物理性能（例如柔性，拉伸强度）。

10. 发明授权

US08486227B2 Method for producing paper, paperboard and cardboard 有权
标题翻译：生产纸张，纸板和纸板的方法
公开(公告)号：US08486227B2
公开(公告)日：2013-07-16
申请号：US13609356
申请日：2012-09-11
申请人： Anton Esser , Rainer Blum , Joachim Kuhn , Marc Leduc , Ralf Hemel
发明人： Anton Esser , Rainer Blum , Joachim Kuhn , Marc Leduc , Ralf Hemel
IPC分类号： D21H17/34 , D21H17/37 , D21H17/55 , D21H17/56 , D21H21/02 , D21H21/10
CPC分类号： D21H21/02 , D21H17/37
摘要： A process for the production of paper, board and cardboard by draining a paper stock containing interfering substances in the presence of polymers which contain vinylamine units and which have an average molar mass Mw of at least 1 million, a high-consistency stock first being prepared, at least one polymer containing vinylamine units and having an average molar mass Mw of at least 1 million and a degree of hydrolysis of from 1 to 20 mol % being metered into the high-consistency stock, the high-consistency stock being diluted to a low-consistency stock by adding water, and the low-consistency stock being drained, the polymers being hydrolyzed homo- or copolymers of N-vinylcarboxamides additives for reducing deposits in the wire part, press section and drying section of paper machines.
摘要翻译：一种制备纸，纸板和纸板的方法，该方法是在含有乙烯胺单元的聚合物存在下含有干扰物质的纸料，并且其平均摩尔质量Mw至少为100万，首先制备高稠度原料至少一种含有乙烯胺单元并且具有至少100万的平均摩尔质量Mw和1至20摩尔％的水解度的聚合物被计量加入高浓度原料中，将高稠度原料稀释至低浓度原料通过加水，低浓度原料被排出，聚合物被水解为N-乙烯基甲酰胺添加剂的均聚物或共聚物，用于还原造纸机的丝线部分，压榨部分和干燥部分中的沉积物。

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