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公开(公告)号：US11535985B2
公开(公告)日：2022-12-27
申请号：US16916173
申请日：2020-06-30
申请人： Kemira Oyj
发明人： Yuping Luo , Jennifer Riser , Zheng Dang , Junhua Chen , Ronald Robinson , Andrew Pencek , Barbara Lukasik
摘要： A method for manufacture of paper or board, in which method an inverted solution of cationic polymer is added to the fiber suspension for providing retention enhancement without over-flocculating fiber stock and destruction sheet formation and/or improving drainage and enhancing or at least maintaining strength of paper or board, An inverted solution has a bulk viscosity of 50-150 mPas at 0.2 weight-% cationic polymer concentration and inverted solution comprises cationic polymer obtained by reverse phase emulsion polymerization of a monomer blend comprising non-ionic monomers, 15-50 mol-% cationic monomers, an optionally at most 50 ppm of a crosslinking agent, and a chain transfer agent, and the obtained reverse phase emulsion of cationic polymer is inverted into an aqueous solution.
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公开(公告)号：US20210002827A1
公开(公告)日：2021-01-07
申请号：US16916173
申请日：2020-06-30
申请人： Kemira Oyj
发明人： Yuping Luo , Jennifer Riser , Zheng Dang , Junhua Chen , Ronald Robinson , Andrew Pencek , Barbara Lukasik
摘要： A method for manufacture of paper or board, in which method an inverted solution of cationic polymer is added to the fiber suspension for providing retention enhancement without over-flocculating fiber stock and destruction sheet formation and/or improving drainage and enhancing or at least maintaining strength of paper or board, An inverted solution has a bulk viscosity of 50-150 mPas at 0.2 weight-% cationic polymer concentration and inverted solution comprises cationic polymer obtained by reverse phase emulsion polymerization of a monomer blend comprising non-ionic monomers, 15-50 mol-% cationic monomers, an optionally at most 50 ppm of a crosslinking agent, and a chain transfer agent, and the obtained reverse phase emulsion of cationic polymer is inverted into an aqueous solution.
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公开(公告)号：US11453979B2
公开(公告)日：2022-09-27
申请号：US17055152
申请日：2018-05-14
申请人： Kemira OYJ
发明人： Yuping Luo , Junhua Chen , Zheng Dang
摘要： Embodiments of the present invention relate to a method of making a paper comprising the steps of: a) providing a cationic wet strength resin comprising a polyamidoamine epihalohydrin, a condensation copolymer of epihalohydrin and amine, or combination thereof; b) providing an anionic polymer; c) co-mixing the cationic wet strength resin and the anionic polymer to provide a composition comprising polyelectrolyte complexes; d) providing an aqueous pulp slurry, draining the aqueous pulp slurry on a screen to form a wet fiber web, and drying the wet fiber web to obtain the paper, wherein said co-mixed composition is introduced to the aqueous pulp slurry or on the formed wet fiber web. Embodiments of the present invention further relates to a paper wet strength composition, its use in paper making and a paper obtainable therefrom.
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公开(公告)号：US10458068B2
公开(公告)日：2019-10-29
申请号：US15543633
申请日：2016-02-16
申请人： Kemira Oyj
发明人： Chen Lu , Junhua Chen , Clay Campbell , Scott Rosencrance , Jenna Sue Rabideau
IPC分类号： D21H17/37 , D21H17/06 , D21H17/64 , D21H17/65 , D21H21/20 , D21H17/56 , D21H23/10 , D21H23/16 , D21H23/22 , D21H23/66
摘要： A method for manufacturing paper is disclosed. A pulp slurry is produced, a paper sheet is formed from the slurry, an aldehyde functionalized polymer or polymers is added to the slurry before and/or after sheet formation, and a water soluble acid is added on the paper sheet.
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公开(公告)号：US09328462B2
公开(公告)日：2016-05-03
申请号：US14408404
申请日：2013-06-17
申请人： KEMIRA OYJ
发明人： Junhua Chen , Chen Lu , Scott Rosencrance , Frank Zimmermann
CPC分类号： D21H17/55 , D21H17/25 , D21H17/37 , D21H17/375 , D21H17/47 , D21H21/10 , D21H21/18 , D21H21/20 , D21H27/002
摘要： One or more embodiments include paper, methods of making paper, compositions, and the like, are provided. In various exemplary embodiments described herein, a paper material may be formed by treating a cellulosic fiber or an aqueous pulp slurry with a treatment composition comprising an anionic polyacrylamide resin and an aldehyde-functionalized polymer resin.
摘要翻译： 提供一个或多个实施例包括纸，制造纸，组合物等的方法。 在本文所述的各种示例性实施方案中，可以通过用包含阴离子聚丙烯酰胺树脂和醛官能化聚合物树脂的处理组合物处理纤维素纤维或含水纸浆浆料来形成纸材料。
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6.发明授权公开(公告)号：US11208766B2
公开(公告)日：2021-12-28
申请号：US16644175
申请日：2018-09-26
申请人： Kemira Oyj
发明人： Yuping Luo , Junhua Chen , Zheng Dang , Jennifer Riser
摘要： A surface treatment composition is disclosed including anionic polyacrylamide, which has a weight average molecular weight, MW, in the range of 100 000-2 000 000 g/mol, and free glyoxal. Further disclosed is a use of the surface treatment composition, a method for producing paper, board or the like and a paper product.
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公开(公告)号：US10435843B2
公开(公告)日：2019-10-08
申请号：US15649852
申请日：2017-07-14
申请人： Kemira Oyj
发明人： Chen Lu , Junhua Chen , Clay Campbell , Scott Rosencrance , Jenna Sue Rabideau
IPC分类号： D21H21/18 , D21H17/37 , D21H17/56 , D21H17/64 , D21H19/12 , D21C9/00 , D21H17/06 , D21H17/39 , D21H17/65
摘要： A method for manufacturing paper is disclosed. A pulp slurry is produced, a paper sheet is formed from the slurry, an aldehyde functionalized polymer or polymers in combination with at least one additional strength additive is added to the slurry before and/or after sheet formation, and a water soluble acid is added on the paper sheet.
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公开(公告)号：US20170314204A1
公开(公告)日：2017-11-02
申请号：US15649852
申请日：2017-07-14
申请人： Kemira Oyj
发明人： Chen LU , Junhua Chen , Clay Campbell , Scott Rosencrance , Jenna Sue Rabideau
CPC分类号： D21H21/18 , D21C9/002 , D21H17/06 , D21H17/375 , D21H17/39 , D21H17/56 , D21H17/64 , D21H17/65 , D21H19/12
摘要： A method for manufacturing paper is disclosed. A pulp slurry is produced, a paper sheet is formed from the slurry, an aldehyde functionalized polymer or polymers in combination with at least one additional strength additive is added to the slurry before and/or after sheet formation, and a water soluble acid is added on the paper sheet.
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公开(公告)号：US09506195B2
公开(公告)日：2016-11-29
申请号：US15046741
申请日：2016-02-18
申请人： KEMIRA OYJ
发明人： Junhua Chen , Chen Lu , Scott Rosencrance , Frank Zimmermann
IPC分类号： D21H17/55 , D21H21/18 , D21H21/20 , D21H27/00 , D21H17/37 , D21H17/25 , D21H17/47 , D21H21/10
CPC分类号： D21H17/55 , D21H17/25 , D21H17/37 , D21H17/375 , D21H17/47 , D21H21/10 , D21H21/18 , D21H21/20 , D21H27/002
摘要： One or more embodiments include paper, methods of making paper, compositions, and the like, are provided. In various exemplary embodiments described herein, a paper material may be formed by treating a cellulosic fiber or an aqueous pulp slurry with a treatment composition comprising an anionic polyacrylamide resin and an aldehyde-functionalized polymer resin.
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公开(公告)号：US20150176206A1
公开(公告)日：2015-06-25
申请号：US14408404
申请日：2013-06-17
申请人： KEMIRA OYJ
发明人： Junhua Chen , Chen Lu , Scott Rosencrance , Frank Zimmermann
IPC分类号： D21H17/55
CPC分类号： D21H17/55 , D21H17/25 , D21H17/37 , D21H17/375 , D21H17/47 , D21H21/10 , D21H21/18 , D21H21/20 , D21H27/002
摘要： One or more embodiments include paper, methods of making paper, compositions, and the like, are provided. In various exemplary embodiments described herein, a paper material may be formed by treating a cellulosic fiber or an aqueous pulp slurry with a treatment composition comprising an anionic polyacrylamide resin and an aldehyde-functionalized polymer resin.
摘要翻译： 提供一个或多个实施例包括纸，制造纸，组合物等的方法。 在本文所述的各种示例性实施方案中，可以通过用包含阴离子聚丙烯酰胺树脂和醛官能化聚合物树脂的处理组合物处理纤维素纤维或含水纸浆浆料来形成纸材料。
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