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公开(公告)号：DE3534273A1
公开(公告)日：1987-04-02
申请号：DE3534273
申请日：1985-09-26
Applicant: BASF AG
Inventor： PFOHL SIGBERG , KROENER MICHAEL , HARTMANN HEINRICH , DENZINGER WALTER
IPC: C08F8/12 , C08F16/16 , C08F18/02 , C08F20/52 , C08F26/00 , C08F26/06 , C08F216/16 , C08F216/18 , C08F218/02 , C08F218/04 , C08F218/08 , C08F218/10 , C08F220/00 , C08F220/02 , C08F220/10 , C08F220/18 , C08F220/42 , C08F220/56 , C08F226/02 , C08F226/10 , D21H17/34 , D21H17/36 , D21H17/37 , D21H17/45 , D21H21/18 , D21H3/60
Abstract: Water-soluble copolymers containing copolymerized vinylamine units are prepared by copolymerizing (a) from 95 to 10 mol % of N-vinylformamide and (b) from 5 to 90 mol % of an ethylenically unsaturated monomer from the group consisting of vinyl acetate, vinyl propionate, C1-C4-alkyl vinyl ethers, the esters, nitriles and amides of acrylic acid and methacrylic acid and N-vinylpyrrolidone, and then eliminating from 30 to 100 mol % of the formyl groups from the copolymer. Preferred copolymers are copolymers of N-vinylformamide and vinyl acetate, in which from 30 to 100 mol % of the monomer units are hydrolyzed. The copolymers are used in papermaking to increase the dry strength and wet strength of the paper.
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公开(公告)号：FI863755A
公开(公告)日：1987-03-27
申请号：FI863755
申请日：1986-09-17
Applicant: BASF AG
Inventor： PFOHL SIGBERG , KROENER MICHAEL , HARTMANN HEINRICH , DENZINGER WALTER
IPC: C08F8/12 , C08F16/16 , C08F18/02 , C08F20/52 , C08F26/00 , C08F26/06 , C08F216/16 , C08F216/18 , C08F218/02 , C08F218/04 , C08F218/08 , C08F218/10 , C08F220/00 , C08F220/02 , C08F220/10 , C08F220/18 , C08F220/42 , C08F220/56 , C08F226/02 , C08F226/10 , D21H17/34 , D21H17/36 , D21H17/37 , D21H17/45 , D21H21/18 , C08F
Abstract: Water-soluble copolymers containing copolymerized vinylamine units are prepared by copolymerizing (a) from 95 to 10 mol % of N-vinylformamide and (b) from 5 to 90 mol % of an ethylenically unsaturated monomer from the group consisting of vinyl acetate, vinyl propionate, C1-C4-alkyl vinyl ethers, the esters, nitriles and amides of acrylic acid and methacrylic acid and N-vinylpyrrolidone, and then eliminating from 30 to 100 mol % of the formyl groups from the copolymer. Preferred copolymers are copolymers of N-vinylformamide and vinyl acetate, in which from 30 to 100 mol % of the monomer units are hydrolyzed. The copolymers are used in papermaking to increase the dry strength and wet strength of the paper.
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公开(公告)号：FI70230C
公开(公告)日：1986-09-15
申请号：FI822102
申请日：1982-06-11
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , SCHNEIDER ROLF , KROENER MICHAEL , MUELLER HANS , LINHART FRIEDRICH , BURKERT HANS , BEYER KARL-HEINZ
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公开(公告)号：AU5045085A
公开(公告)日：1986-06-05
申请号：AU5045085
申请日：1985-11-28
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , KROENER MICHAEL , HARTMANN HEINRICH , LINHART FRIEDRICH , PFITZNER KLAUS
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公开(公告)号：NO854768A
公开(公告)日：1986-05-30
申请号：NO854768
申请日：1985-11-28
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , KROENER MICHAEL , HARTMANN HEINRICH , LINHART FRIEDRICH , PFITZNER KLAUS
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Patent Agency Ranking
公开(公告)号：NO854767A
公开(公告)日：1986-05-30
申请号：NO854767
申请日：1985-11-28
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , KROENER MICHAEL , GOETZE WALTER
IPC: C07B61/00 , C07C67/00 , C07C231/00 , C07C231/06 , C07C231/08 , C07C231/12 , C07C233/03 , C07C103/00
CPC classification number: C07C231/06
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公开(公告)号：NO854766L
公开(公告)日：1986-05-30
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 , C07C
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.
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公开(公告)号：FI854624A
公开(公告)日：1986-05-30
申请号：FI854624
申请日：1985-11-22
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 , C07C
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.
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公开(公告)号：DK549485A
公开(公告)日：1986-05-30
申请号：DK549485
申请日：1985-11-28
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , KROENER MICHAEL , GOETZE WALTER
IPC: C07B61/00 , C07C67/00 , C07C231/00 , C07C231/06 , C07C231/08 , C07C231/12 , C07C233/03 , C07C
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公开(公告)号：AU551448B2
公开(公告)日：1986-05-01
申请号：AU8609282
申请日：1982-07-16
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , SCHNEIDER ROLF , KROENER MICHAEL , MUELLER HANS , LINHART FRIEDRICH , BURKERT HANS , BEYER KARL-HEINZ
IPC: C08F8/00 , C08F226/02 , D21C9/18 , D21H17/34 , D21H17/45 , C02F1/56 , C08F126/02 , D21H3/40
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