公开(公告)号：AU8646891A

公开(公告)日：1992-05-20

申请号：AU8646891

申请日：1991-10-04

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  NILZ CLAUDIA ,  SENDHOFF NORBERT ,  STANGE ANDREAS ,  CLERCQ ARNOLD DE ,  RIEBELING ULRICH

IPC: D21H17/34 ,  D21H17/45 ,  D21H17/62 ,  D21H21/16

公开(公告)号：CA2085348A1

公开(公告)日：1992-04-16

申请号：CA2085348

申请日：1991-10-04

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  NILZ CLAUDIA ,  SENHOFF NORBERT ,  STANGE ANDREAS ,  DE CLERCQ ARNOLD ,  RIEBELING ULRICH

IPC: D21H17/34 ,  D21H17/45 ,  D21H17/62 ,  D21H21/16

Abstract: 2085348 9207141 PCTABS00012 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：FI910328A

公开(公告)日：1991-07-26

申请号：FI910328

申请日：1991-01-22

Applicant: 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 ,  D21H

Abstract: In a process for making paper, paperboard and cardboard, paper pulps containing interfering materials are dehydrated in the presence of polymers which, as characteristic constituents, contain copolymerised units of the formulae … … with R and R = H or C1- to C3-alkyl, and have K values of at least 130, the polymers containing less than 10 mol% of units of formula II.

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：NO165300C

公开(公告)日：1991-01-23

申请号：NO854768

申请日：1985-11-28

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  LINHART FRIEDRICH ,  PFITZNER KLAUS

IPC: C08F8/00 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02

公开(公告)号：CA2004144A1

公开(公告)日：1990-06-20

申请号：CA2004144

申请日：1989-11-29

Applicant: BASF AG

Inventor： HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  FREUDENBERG ENRIQUE

IPC: C08F2/32 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02 ,  C09K23/42 ,  D21F1/66 ,  D21H17/34 ,  C08L33/24 ,  D21H17/37

Abstract: o.z. 0050/40418 Stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides of the formula (I) where R and R1 are each H or C1-C6-alkyl are prepared by polymerization of a compound of the formula I alone or as a mixture with other monoethylenically unsaturated monomers, in the form of a water-in-oil emulsion, to give a water-in-oil polymer emulsion, and subsequent hydrolysis of the polymer, by a process in which hydrolysis of the polymer in the form of the water-in-oil polymer emulsion is carried out in the presence of an acid or base and of from 1 to 30% by weight, based on the polymer, of an emulsifier which is obtainable by (A) reacting a C10-C22-fatty alcohol with epichlorohydrin in a molar ratio of from 1 : 0.5 to 1 : 1.5 to give a glycidyl ether, (B) reacting the glycidyl ether with (1) a saturated C2 C6-alcohol containing from 2 to 6 OH groups or (2) its monoether with a C10-C22-fatty alcohol, in a molar ratio of glycidyl ether to (1) or (2) of from 1 : 0.5 to 1 : 6, in the presence of an acid or base, and (C) alkoxylating the reaction product from (B) with one or more C2-C4-alkylene oxides in a molar ratio of from 1 : 1 to 1 : 6. The polymer emulsions obtainable in this manner are used as drainage aids, retention aids and flocculants in the making of paper and paper products.

公开(公告)号：AU593422B2

公开(公告)日：1990-02-08

申请号：AU1929488

申请日：1988-07-22

Applicant: BASF AG

Inventor： STANGE ANDREAS ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER

IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18 ,  D21H3/28 ,  D21H3/38

Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

公开(公告)号：NO162114C

公开(公告)日：1989-11-08

申请号：NO854766

申请日：1985-11-28

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  STECHER KARLHEINZ ,  KROENER MICHAEL ,  SCHNEIDER ROLF

IPC: C07C255/16 ,  C01C3/00 ,  C01C3/02 ,  C01C3/04 ,  C01C3/10 ,  C07C67/00 ,  C07C211/10 ,  C07C253/00 ,  C07C253/08 ,  C07C255/19 ,  C07C255/24 ,  C07C255/29 ,  C07C121/43 ,  C07C121/36 ,  C07C120/00

Abstract: Reaction products of hydrogen cyanide are prepared by a process in which hydrogen cyanide prepared in a conventional manner by pyrolysis at from 250 DEG to 650 DEG C. over a solid under from 5 to 200 mbar is cooled to a temperature of from 200 DEG to -10 DEG C. together with the other pyrolysis products, the hydrogen cyanide is then fed to a chemisorption reaction with a base or with a carbonyl compound, and the reaction products of hydrogen cyanide which are formed therein are removed from the system and brought to atmospheric pressure. In this process, the handling of large amounts of hydrogen cyanide is avoided.

公开(公告)号：NO162114B

公开(公告)日：1989-07-31

申请号：NO854766

申请日：1985-11-28

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  STECHER KARLHEINZ ,  KROENER MICHAEL ,  SCHNEIDER ROLF

IPC: C07C255/16 ,  C01C3/00 ,  C01C3/02 ,  C01C3/04 ,  C01C3/10 ,  C07C67/00 ,  C07C211/10 ,  C07C253/00 ,  C07C253/08 ,  C07C255/19 ,  C07C255/24 ,  C07C255/29 ,  C07C121/43 ,  C07C121/36 ,  C07C120/00

Abstract: Reaction products of hydrogen cyanide are prepared by a process in which hydrogen cyanide prepared in a conventional manner by pyrolysis at from 250 DEG to 650 DEG C. over a solid under from 5 to 200 mbar is cooled to a temperature of from 200 DEG to -10 DEG C. together with the other pyrolysis products, the hydrogen cyanide is then fed to a chemisorption reaction with a base or with a carbonyl compound, and the reaction products of hydrogen cyanide which are formed therein are removed from the system and brought to atmospheric pressure. In this process, the handling of large amounts of hydrogen cyanide is avoided.