公开(公告)号：US09079995B2

公开(公告)日：2015-07-14

申请号：US13739071

申请日：2013-01-11

Applicant: Kemira Oyj

Inventor： Helena Peuranen ,  Perttu Heiska ,  Kimmo Huhtala ,  Nina Bruun

IPC: C08L1/00 ,  C08L3/00 ,  C08F251/00 ,  C08F2/16 ,  C08F212/08 ,  D21H21/16 ,  C08F2/20 ,  D21H17/24 ,  D21H17/36 ,  D21H17/37 ,  C08F220/18 ,  C08K3/20

CPC classification number: C08F251/00 ,  C08F2/16 ,  C08F2/20 ,  C08F212/08 ,  C08F220/18 ,  C08K3/20 ,  D21H17/24 ,  D21H17/36 ,  D21H17/37 ,  D21H21/16 ,  C08F2220/1825

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl (meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas.

Abstract translation: 本公开涉及一种用于在制备聚合物水分散体期间控制形成的聚合物颗粒的尺寸分布的方法。 该方法包括获得包含约10至40重量％的含有游离羟基的多糖例如淀粉的多糖水溶液，并且在接枝的水溶性氧化还原体系存在下在多糖溶液中聚合约 30至60重量％的至少一种任选取代的苯乙烯，约60至30重量％的至少一种（甲基）丙烯酸C 1 -C 4烷基酯和0至约10重量％的其它烯属不饱和可共聚单体。 所形成的聚合物颗粒的尺寸分布通过将聚合之前的多糖溶液的粘度调节至低于约20mPas的水平来控制。

公开(公告)号：US20130184407A1

公开(公告)日：2013-07-18

申请号：US13739071

申请日：2013-01-11

Applicant: Kemira Oyj

Inventor： Helena Peuranen ,  Perttu Heiska ,  Kimmo Huhtala ,  Nina Bruun

IPC: C08F2/16

CPC classification number: C08F251/00 ,  C08F2/16 ,  C08F2/20 ,  C08F212/08 ,  C08F220/18 ,  C08K3/20 ,  D21H17/24 ,  D21H17/36 ,  D21H17/37 ,  D21H21/16 ,  C08F2220/1825

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl (meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas. The present disclosure relates also to an aqueous polymer dispersion having the D(99) value less than about 160 nm for polymer particles in the polymer dispersion and its use.

Abstract translation: 本公开涉及一种用于在制备聚合物水分散体期间控制形成的聚合物颗粒的尺寸分布的方法。 该方法包括获得包含约10至40重量％的含有游离羟基的多糖例如淀粉的多糖水溶液，并且在接枝的水溶性氧化还原体系存在下在多糖溶液中聚合约 30至60重量％的至少一种任选取代的苯乙烯，约60至30重量％的至少一种（甲基）丙烯酸C 1 -C 4烷基酯和0至约10重量％的其它烯属不饱和可共聚单体。 所形成的聚合物颗粒的尺寸分布通过将聚合之前的多糖溶液的粘度调节至低于约20mPas的水平来控制。 本公开还涉及聚合物分散体中的聚合物颗粒的D（99）值小于约160nm的水性聚合物分散体及其用途。

公开(公告)号：US11932707B2

公开(公告)日：2024-03-19

申请号：US17429143

申请日：2020-02-06

Applicant: KEMIRA OYJ

Inventor： Asko Karppi ,  Perttu Heiska ,  Mika Suvanto ,  Matti Hietaniemi

IPC: C08B30/02 ,  B01F23/50 ,  B01F23/53 ,  B01F25/51 ,  C08B30/14 ,  D21H17/28 ,  B01F101/47

CPC classification number: C08B30/02 ,  B01F23/511 ,  B01F23/53 ,  B01F23/581 ,  B01F25/51 ,  C08B30/14 ,  D21H17/28 ,  B01F2101/47 ,  B01F2215/044 ,  B01F2215/0472 ,  B01F2215/0477 ,  B01F2215/0481

Abstract: The present invention relates to a method and an arrangement for dissolving starch. Specifically, the present invention relates to a method for dissolving starch by introducing mechanical force to at least partially gelatinized aqueous starch.

公开(公告)号：USRE46640E1

公开(公告)日：2017-12-19

申请号：US15143679

申请日：2016-05-02

Applicant: Kemira Oyj

Inventor： Esko Aarni ,  Perttu Heiska ,  Kimmo Huhtala

IPC: C09D7/02 ,  C09D17/00 ,  D21H19/58 ,  C08K3/26

CPC classification number: C09D17/004 ,  C08K2003/265 ,  C09D7/45 ,  C09D17/001 ,  D21H19/58

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention relates also to dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

公开(公告)号：US20150025194A1

公开(公告)日：2015-01-22

申请号：US14510200

申请日：2014-10-09

Applicant: Kemira Oyj

Inventor： Helena Peuranen ,  Perttu Heiska ,  Kimmo Huhtala ,  Nina Bruun

IPC: C08F251/00 ,  C08K3/20

CPC classification number: C08F251/00 ,  C08F2/16 ,  C08F2/20 ,  C08F212/08 ,  C08F220/18 ,  C08K3/20 ,  D21H17/24 ,  D21H17/36 ,  D21H17/37 ,  D21H21/16 ,  C08F2220/1825

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl(meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas. The present disclosure relates also to an aqueous polymer dispersion having the D(99) value less than about 160 nm for polymer particles in the polymer dispersion and its use.

Abstract translation: 本公开涉及一种用于在制备聚合物水分散体期间控制形成的聚合物颗粒的尺寸分布的方法。 该方法包括获得包含约10至40重量％的含有游离羟基的多糖例如淀粉的多糖水溶液，并且在接枝的水溶性氧化还原体系存在下在多糖溶液中聚合约 30至60重量％的至少一种任选取代的苯乙烯，约60至30重量％的至少一种（甲基）丙烯酸C 1 -C 4烷基酯和0至约10重量％的其它烯属不饱和可共聚单体。 所形成的聚合物颗粒的尺寸分布通过将聚合之前的多糖溶液的粘度调节至低于约20mPas的水平来控制。 本公开还涉及聚合物分散体中的聚合物颗粒的D（99）值小于约160nm的水性聚合物分散体及其用途。

公开(公告)号：US11891499B2

公开(公告)日：2024-02-06

申请号：US17261192

申请日：2019-07-19

Applicant: KEMIRA OYJ

Inventor： Juhana Ahola ,  Kaisa Karisalmi ,  Christos Rampotas ,  Perttu Heiska ,  Mika Suvanto

IPC: C08L1/02 ,  B29B9/12 ,  C08H8/00 ,  C08L5/06 ,  C08L5/14 ,  C08L97/00 ,  C08L97/02 ,  D21H11/18

CPC classification number: C08L1/02 ,  B29B9/12 ,  C08H8/00 ,  C08L5/06 ,  C08L5/14 ,  C08L97/005 ,  C08L97/02 ,  D21H11/18

Abstract: The present invention relates to a granular microfibrillated cellulose product comprising a microfibrillated cellulose originating from agricultural biomass, said microfibrillated cellulose product comprising ≤75 wt % of cellulose, preferably ≤70 wt %, based on dry solids content of said product, wherein said granular microfibrillated cellulose product has a bulk density of 500-1200 kg/m3; a flowability of 5-60 ml/s, measured by a Copley scientific powder flowability tester having a stainless steel cylinder with orifice 16 or funnel with orifice 15; and a water content of at most 60 wt %, based on total microfibrillated cellulose product. The present invention further relates to its manufacture and use in and manufacture of paper and paperboard products.

公开(公告)号：USRE46649E1

公开(公告)日：2017-12-26

申请号：US15142252

申请日：2016-04-29

Applicant: Kemira Oyj

Inventor： Esko Aarni ,  Perttu Heiska ,  Kimmo Huhtala

IPC: C04B24/26 ,  C08L3/02 ,  C08L1/00 ,  B60C1/00 ,  C08L3/00 ,  C08L5/16 ,  C09D17/00 ,  C09D7/02 ,  D21H19/58 ,  C08K3/26

CPC classification number: C09D17/004 ,  C08K2003/265 ,  C09D7/45 ,  C09D17/001 ,  D21H19/58

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention also relates to a dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

公开(公告)号：US09212247B2

公开(公告)日：2015-12-15

申请号：US14510200

申请日：2014-10-09

Applicant: Kemira Oyj

Inventor： Helena Peuranen ,  Perttu Heiska ,  Kimmo Huhtala ,  Nina Bruun

IPC: C08L1/00 ,  C08L31/00 ,  C08F251/00 ,  C08F2/16 ,  C08F212/08 ,  D21H21/16 ,  C08F2/20 ,  D21H17/24 ,  D21H17/36 ,  D21H17/37 ,  C08F220/18 ,  C08K3/20

CPC classification number: C08F251/00 ,  C08F2/16 ,  C08F2/20 ,  C08F212/08 ,  C08F220/18 ,  C08K3/20 ,  D21H17/24 ,  D21H17/36 ,  D21H17/37 ,  D21H21/16 ,  C08F2220/1825

Abstract: The present disclosure relates to a method for controlling size distribution of formed polymer particles during preparation of aqueous polymer dispersion. The method comprises obtaining an aqueous polysaccharide solution, which comprises about 10 to 40 weight-% polysaccharide containing a free hydroxyl group, such as starch, and polymerising in the polysaccharide solution in the presence of a graft-linking, water-soluble redox system about 30 to 60 weight-% of at least one optionally substituted styrene, about 60 to 30 weight-% of at least one C1-C4-alkyl(meth)acrylate, and 0 to about 10 weight-% of other ethylenically unsaturated copolymerizable monomers. The size distribution of the formed polymer particles is controlled by adjusting viscosity of the polysaccharide solution before the polymerisation to a level less than about 20 mPas.

Abstract translation: 本公开涉及一种用于在制备聚合物水分散体期间控制形成的聚合物颗粒的尺寸分布的方法。 该方法包括获得包含约10至40重量％的含有游离羟基的多糖例如淀粉的多糖水溶液，并且在接枝的水溶性氧化还原体系存在下在多糖溶液中聚合约 30至60重量％的至少一种任选取代的苯乙烯，约60至30重量％的至少一种（甲基）丙烯酸C 1 -C 4烷基酯和0至约10重量％的其它烯属不饱和可共聚单体。 所形成的聚合物颗粒的尺寸分布通过将聚合之前的多糖溶液的粘度调节至低于约20mPas的水平来控制。

公开(公告)号：US09145504B2

公开(公告)日：2015-09-29

申请号：US14296927

申请日：2014-06-05

Applicant: Kemira Oyj

Inventor： Esko Aarni ,  Perttu Heiska ,  Kimmo Huhtala

IPC: C09D7/02 ,  C09D17/00 ,  D21H19/58 ,  C08K3/26

CPC classification number: C09D17/004 ,  C08K2003/265 ,  C09D7/45 ,  C09D17/001 ,  D21H19/58

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention relates also to dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

Abstract translation: 本发明涉及一种改善水性颜料浆料流变性能的方法。 在该方法中，将分散剂加入到包含颜料颗粒的浆料的水相中或加入其中添加颜料颗粒的水相中。 分散剂包括苯乙烯丙烯酸酯共聚物。 本发明还涉及用于颜料浆料的分散剂，其包含包含苯乙烯丙烯酸酯共聚物的第一组分和包含常规分散剂如直链聚丙烯酸酯的第二组分。

公开(公告)号：US20140288216A1

公开(公告)日：2014-09-25

申请号：US14296927

申请日：2014-06-05

Applicant: Kemira Oyj

Inventor： Esko Aarni ,  Perttu Heiska ,  Kimmo Huhtala

IPC: C09D17/00

CPC classification number: C09D17/004 ,  C08K2003/265 ,  C09D7/45 ,  C09D17/001 ,  D21H19/58

Abstract: The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention relates also to dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

Abstract translation: 本发明涉及一种改善水性颜料浆料流变性能的方法。 在该方法中，将分散剂加入到包含颜料颗粒的浆料的水相中或加入其中添加颜料颗粒的水相中。 分散剂包括苯乙烯丙烯酸酯共聚物。 本发明还涉及用于颜料浆料的分散剂，其包含包含苯乙烯丙烯酸酯共聚物的第一组分和包含常规分散剂如直链聚丙烯酸酯的第二组分。