公开(公告)号：CA2034869C

公开(公告)日：2001-08-14

申请号：CA2034869

申请日：1991-01-24

Applicant: FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT

Inventor： FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT

IPC: D21H21/04 ,  D21H17/34 ,  D21H17/37 ,  D21H17/41 ,  D21H21/10 ,  D21H27/00 ,  D21H17/45

Abstract: Paper, board and cardboard are produced from paper stocks containing foreign sub- stances by drainage in the presence of a polymer which contains, as typical polymerized constituents, units of the formulae where R1 and R2 are each H, C1-C3-alkyl, and which have K values of not less than 130, the polymers containing less than 10 mol % of units of the formula II.

公开(公告)号：CA2034135C

公开(公告)日：2001-08-14

申请号：CA2034135

申请日：1991-01-14

Applicant: AUHORN WERNER ,  LINHART FRIEDRICH ,  LORENCAK PRIMOZ ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  DENZINGER WALTER ,  HARTMANN HEINRICH

Inventor： AUHORN WERNER ,  LINHART FRIEDRICH ,  LORENCAK PRIMOZ ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  DENZINGER WALTER ,  HARTMANN HEINRICH

IPC: C08F8/12 ,  D21H17/34 ,  D21H17/36

Abstract: Paper, board and cardboard are produced by draining a paper stock, containing un- desirable substances, in the presence of hydrolyzed homo- and/or copolymers of N-vinylformamide having a degree of hydrolysis of not less than 60% and a cationic retention aid. According to the invention, faster drainage and improved retention are obtained compared with the use of known fixing agents.

公开(公告)号：CA2034869A1

公开(公告)日：1991-07-26

申请号：CA2034869

申请日：1991-01-24

Applicant: FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  BASF AG

Inventor： FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT

IPC: D21H21/04 ,  D21H17/34 ,  D21H17/37 ,  D21H17/41 ,  D21H21/10 ,  D21H27/00 ,  D21H17/45

Abstract: Paper, board and cardboard are produced from paper stocks containing foreign sub- stances by drainage in the presence of a polymer which contains, as typical polymerized constituents, units of the formulae where R1 and R2 are each H, C1-C3-alkyl, and which have K values of not less than 130, the polymers containing less than 10 mol % of units of the formula II.

公开(公告)号：CA2034135A1

公开(公告)日：1991-07-17

申请号：CA2034135

申请日：1991-01-14

Applicant: AUHORN WERNER ,  LINHART FRIEDRICH ,  LORENCAK PRIMOZ ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  DENZINGER WALTER ,  HARTMANN HEINRICH ,  BASF AG

Inventor： AUHORN WERNER ,  LINHART FRIEDRICH ,  LORENCAK PRIMOZ ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  DENZINGER WALTER ,  HARTMANN HEINRICH

IPC: C08F8/12 ,  D21H17/34 ,  D21H17/36

Abstract: Paper, board and cardboard are produced by draining a paper stock, containing un- desirable substances, in the presence of hydrolyzed homo- and/or copolymers of N-vinylformamide having a degree of hydrolysis of not less than 60% and a cationic retention aid. According to the invention, faster drainage and improved retention are obtained compared with the use of known fixing agents.

公开(公告)号：WO1992007141A2

公开(公告)日：1992-04-30

申请号：PCT/EP1991001894

申请日：1991-10-04

Applicant: BASF AKTIENGESELLSCHAFT ,  KROENER, Michael ,  NILZ, Claudia ,  SENDHOFF, Norbert ,  STANGE, Andreas ,  DE CLERCQ, Arnold ,  RIEBELING, Ulrich

Inventor： BASF AKTIENGESELLSCHAFT

IPC: D21H17/45

CPC classification number: D21H17/45 ,  D21H21/16

Abstract: According to a paper, paperboard and cardboard internal sizing process, resin size is used, as well as cationic polymers containing polymerized vinylamine units as fixing agents for the resin size.

公开(公告)号：WO1996011224A1

公开(公告)日：1996-04-18

申请号：PCT/EP1995003810

申请日：1995-09-26

Applicant: BASF AKTIENGESELLSCHAFT ,  FISCH, Herbert ,  SENDHOFF, Norbert ,  BREITENBACH, Jörg ,  LEITNER, Heinz

Inventor： BASF AKTIENGESELLSCHAFT

IPC: C08G69/36

CPC classification number: C08G69/36 ,  D06M15/59

Abstract: The use of aqueous dispersions or water-dispersible polyamides obtainable by the condensation of (a) 40 to 94.8 mol % of a monoaminocarboxylic acid with 2 to 12 C atoms or its lactam, (b) 2.6 to 37 mol % of a diamine with 2 to 18 C atoms, (c) 2.6 to 7 mol % of a dicarboxylic acid substituted with sulphonate groups and (d) 0 to 30 mol % of a dicarboxylic acid with 2 to 16 C atoms differing from (c), and dispersing the condensates in an aqueous medium, as sizes for warp yarns.

Abstract translation: 水分散性的聚酰胺，其通过（a）的30〜94.8摩尔％的具有2至12个C原子或它的内酰胺单氨基苯甲酸，（b）中2.6〜37摩尔％的二胺的缩合可获得的水性分散体的使用 具有2至18个碳原子，（c）是2,6〜7摩尔％的磺酸根取代的二羧酸的，和（d）从（c）具有碳原子数为2〜16，分散二羧酸不同的0至30％（摩尔） 在水性介质中的缩合物，如上浆剂为经纱。

公开(公告)号：WO1994008092A1

公开(公告)日：1994-04-14

申请号：PCT/EP1993002580

申请日：1993-09-23

Applicant: BASF AKTIENGESELLSCHAFT ,  NILZ, Claudia ,  SENDHOFF, Norbert ,  BREITSCHAFT, Walter ,  ZILLIG, Manfred ,  LORENCAK, Primoz

Inventor： BASF AKTIENGESELLSCHAFT

IPC: D21H21/28

CPC classification number: D21H17/34 ,  D21H21/28

Abstract: Described is a method of dyeing paper during the paper-manufacturing process by the addition of water-soluble anionic dyes and cationic polymers containing vinylamine units as fixing agents to the pulp and removing the water from the pulp to form dyed paper.

公开(公告)号：WO1991002762A1

公开(公告)日：1991-03-07

申请号：PCT/EP1990001399

申请日：1990-08-22

Applicant: BASF AKTIENGESELLSCHAFT ,  FLORY, Klaus ,  STANGE, Andreas ,  KROENER, Michael ,  SENDHOFF, Norbert

Inventor： BASF AKTIENGESELLSCHAFT

IPC: C08G12/46

CPC classification number: C08G12/46 ,  Y10T428/31949 ,  Y10T428/31964

Abstract: Cationic urea formaldehyde resins are obtained by condensation of urea and formaldehyde in a molar ratio of 1:1.5 to 3 in the presence of at least 1 mol% of polymerizates, obtained by polymerization of vinyl amine units, with Fikentscher K values of 5 to 300 in a quantity of 5 to 100 g/mol of urea in the end-product. The mixture is first a) precondensed at a pH of 8 to 14, then acidified and b) condensed at a pH of 1 to 5 until the onset of gel formation, c) 0.3 to 1.5 mol of formaldehyde per mol of urea used is added, d) subsequent condensation is carried out and e) the resin solution is then neutralized. The resins so obtained are used as additives in paper manufacture to increase the dry and wet strength of paper and reduce the loss of opacity of the whiteness of the paper.