公开(公告)号：US20140102649A1

公开(公告)日：2014-04-17

申请号：US14105259

申请日：2013-12-13

Applicant: BASF SE

Inventor： Anton ESSER

IPC: D21H17/37

CPC classification number: D21H17/37 ,  D21H17/42 ,  D21H17/44 ,  D21H21/18

Abstract: Process for the production of paper, board and cardboard having high dry strength by addition of an aqueous composition comprising a nanocellulose and at least one polymer selected from the group consisting of the anionic polymers and water-soluble cationic polymers, draining of the paper stock and drying of the paper products.

Abstract translation: 通过加入包含纳米纤维素和至少一种选自阴离子聚合物和水溶性阳离子聚合物的聚合物的水性组合物来生产具有高干燥强度的纸，纸板和纸板的方法，排出纸料和 干燥纸制品。

公开(公告)号：US20170362776A1

公开(公告)日：2017-12-21

申请号：US15536552

申请日：2015-12-04

Applicant: BASF SE

Inventor： Hans-Joachim HAEHNLE ,  Christoph HAMERS ,  Anton ESSER ,  Hubert MEIXNER ,  Matthew BUCHAN ,  Norbert SCHALL ,  Stefan SPANGE ,  Katja TROMMLER ,  Hendryk WUERFEL ,  Susan SEIFERT ,  Tina WALTHER

IPC: D21H17/42 ,  D21H17/63 ,  D21H17/37 ,  B01F3/12 ,  D21H15/10 ,  B01F3/22 ,  D21H25/04 ,  D21H17/35 ,  D21H11/08 ,  D21H11/04

CPC classification number: D21H17/42 ,  B01F3/1214 ,  B01F3/223 ,  B01F2215/0078 ,  C08L2201/54 ,  C09D139/02 ,  D21H11/04 ,  D21H11/08 ,  D21H15/10 ,  D21H17/34 ,  D21H17/35 ,  D21H17/37 ,  D21H17/375 ,  D21H17/41 ,  D21H17/44 ,  D21H17/63 ,  D21H21/10 ,  D21H23/04 ,  D21H25/04

Abstract: A process for producing paper or board, which process comprises ad-mixing (I) an aqueous composition of pH ≦6 and (II) at least one water-soluble polymeric anionic compound to a paper stock having a pH in the range from 6 to 8 and then dewatering the paper stock by sheet formation and drying, wherein the aqueous composition comprises (a) polymers having primary amino groups and/or amidine groups to a combined content for these groups of ≧1.5 meq/g of polymer, and (b) 0.01 to 50 mol % of 1,4-cyclohexanedione (b) based on the combined amount of primary amino groups and/or amidine groups of the polymers, and also to the paper or board thus obtained.

公开(公告)号：US20180216294A1

公开(公告)日：2018-08-02

申请号：US15747263

申请日：2016-08-04

Applicant: BASF SE

Inventor： Anton ESSER ,  Hans-Joachim HAEHNLE

IPC: D21H17/37 ,  D21H17/67 ,  D21H17/68 ,  D21H21/20 ,  D21H21/10 ,  D21H23/28 ,  D21J1/00

CPC classification number: D21H17/37 ,  D21H17/38 ,  D21H17/40 ,  D21H17/41 ,  D21H17/67 ,  D21H17/675 ,  D21H17/68 ,  D21H21/06 ,  D21H21/10 ,  D21H21/20 ,  D21H23/28 ,  D21J1/00

Abstract: A method of producing paper and board by using at least one water-soluble amphoteric polymer is provided. The water-soluble amphoteric polymer is obtained by copolymerizing a monomer mixture containing a) at least one N-vinylcarboxamide, b) at least one monoethylenically unsaturated monomer having at least one free acid group or at least one acid group in salt form, c) optionally at least one monoethylenically unsaturated monomer other than components (a) and (b), and d) optionally at least one compound having two or more ethylenically unsaturated double bonds, and then partly or wholly hydrolyzing the —CO—R1 groups of the polymer. The cationic monomer units and the anionic monomer units differ in their respective molar fractions, each based on the total number of moles of all monomer units, by not more than 10 mol % in absolute terms.

公开(公告)号：US20140053996A1

公开(公告)日：2014-02-27

申请号：US13969774

申请日：2013-08-19

Applicant: BASF SE

Inventor： Anton ESSER ,  Hans-Joachim Haehnle

IPC: D21H17/37

CPC classification number: D21H21/20 ,  D21H17/37 ,  D21H17/375 ,  D21H17/675 ,  D21H17/74 ,  D21H21/18 ,  D21H23/04

Abstract: The present invention relates to a process for production of paper, card and board comprising draining a filler-containing paper stock comprising at least one water-soluble polymer with sheet formation in the wire section and then pressing the paper in the press section, wherein a paper stock having a fibrous concentration in the range from 20 to 40 g/l has the at least one water-soluble polymer added to it, then the paper stock is diluted to a fibrous concentration in the range from 5 to 15 g/l, the diluted paper stock is drained to form a sheet and the sheet is pressed in the press section to a solids content G(x) wt % or greater and G(x) computes according to G(x)=48 +(x−15)·0.4 where x is the numerical value of the filler content of the dry paper, card or board (in wt %) and G(x) is the numerical value of the minimum solids content (in wt %) to which the sheet is pressed, wherein the water-soluble polymer is obtainable by Hofmann degradation of an acrylamide- and/or methacrylamide-containing polymer with or without subsequent postcrosslinking.

Abstract translation: 本发明涉及一种生产纸张，卡片和纸板的方法，包括在线材部分中排出含有至少一种水溶性聚合物的含有填料的纸料，并将纸压在压榨部中，其中a 纤维浓度在20〜40g / l的纸料中加入至少一种水溶性聚合物，然后将纸料稀释至5〜15g / l的纤维浓度， 将稀释的纸原料排出以形成片材，并将片材在压榨部中压制成固体含量G（x）wt％或更高，并且G（x）根据G（x）= 48 +（x-15）计算 ）·0.4其中x是干纸，纸板或纸板（以重量％计）的填料含量的数值，G（x）是纸张的最小固体含量（以重量％计）的数值 其中水溶性聚合物可通过丙酮酰胺和/或甲基丙烯酰胺的霍夫曼降解获得 含有或不含后续后交联的聚合物。

公开(公告)号：US20170233950A1

公开(公告)日：2017-08-17

申请号：US15518514

申请日：2015-08-14

Applicant: BASF SE

Inventor： Hans-Joachim HAEHNLE ,  Christoph HAMERS ,  Anton ESSER ,  Stefan SPANGE ,  Katja TROMMLER ,  Hendryk WUERFEL ,  Susan SEIFERT ,  Tina WALTHER

IPC: D21H21/20 ,  D21H17/34 ,  C08F18/08 ,  C08F20/56 ,  C08K5/07 ,  C08F26/02

CPC classification number: D21H21/20 ,  C08F18/08 ,  C08F20/56 ,  C08F26/02 ,  C08K5/07 ,  D21H17/09 ,  D21H17/10 ,  D21H17/34 ,  D21H17/37 ,  D21H17/55 ,  D21H17/56 ,  D21H23/04

Abstract: The invention relates to an aqueous composition comprising (a) polymers having primary amino groups and/or amidine groups to a combined content for these groups of ≧1.5 meq/g of polymer, and (b) 0.01 to 50 mol % of 1,4-cyclohexanedione (b) based on the combined amount of primary amino groups and amidine groups of the polymers, wherein the pH of the aqueous composition is ≦6, and further to its use as strength enhancer and to a method of producing paper and board, employment of the aqueous composition and also the paper and board thus obtained.

公开(公告)号：US20150191875A1

公开(公告)日：2015-07-09

申请号：US14662806

申请日：2015-03-19

Applicant: BASF SE

Inventor： Anton ESSER ,  Hans-Joachim HAEHNLE

IPC: D21H21/20 ,  D21H17/67 ,  D21H17/37 ,  D21H17/00

CPC classification number: D21H21/20 ,  D21H17/37 ,  D21H17/375 ,  D21H17/675 ,  D21H17/74 ,  D21H21/18 ,  D21H23/04

Abstract: The present invention relates to a process for production of paper, card and board comprising draining a filler-containing paper stock comprising at least one water-soluble polymer with sheet formation in the wire section and then pressing the paper in the press section, wherein a paper stock having a fibrous concentration in the range from 20 to 40 g/l has the at least one water-soluble polymer added to it, then the paper stock is diluted to a fibrous concentration in the range from 5 to 15 g/l, the diluted paper stock is drained to form a sheet and the sheet is pressed in the press section to a solids content G(x) wt % or greater and G(x) computes according to G(x)=48+(x−15)·0.4 where x is the numerical value of the filler content of the dry paper, card or board (in wt %) and G(x) is the numerical value of the minimum solids content (in wt %) to which the sheet is pressed, wherein the water-soluble polymer is obtainable by Hofmann degradation of an acrylamide- and/or methacrylamide-containing polymer with or without subsequent postcrosslinking.

Abstract translation: 本发明涉及一种生产纸张，卡片和纸板的方法，包括在线材部分中排出含有至少一种水溶性聚合物的含有填料的纸料，并将纸压在压榨部中，其中a 纤维浓度在20〜40g / l的纸料中加入至少一种水溶性聚合物，然后将纸料稀释至5〜15g / l的纤维浓度， 将稀释的纸原料排出以形成片材，并将片材在压榨部中压制成固体含量G（x）wt％或更高，并且G（x）根据G（x）= 48 +（x-15）计算 ）·0.4其中x是干纸，纸板或纸板（以重量％计）的填料含量的数值，G（x）是纸张的最小固体含量（以重量％计）的数值 其中水溶性聚合物可通过丙酮酰胺和/或甲基丙烯酰胺的霍夫曼降解获得 含有或不带有后续交联的含e聚合物。