公开(公告)号：DK161099C

公开(公告)日：1991-11-18

申请号：DK321382

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 ,  C08F126/02 ,  B01D21/01 ,  C02F11/14 ,  D21H17/55

公开(公告)号：CA1260011A

公开(公告)日：1989-09-26

申请号：CA496140

申请日：1985-11-25

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 ,  C07C87/16 ,  C07C121/36

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 to 650.degree.C over a solid under from 5 to 200 mbar is cooled to a temperature of from 200 to -10.degree.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：FI854624A0

公开(公告)日：1985-11-22

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.

公开(公告)号：CA1183645A

公开(公告)日：1985-03-05

申请号：CA396587

申请日：1982-02-18

Applicant: BASF AG

Inventor： MESSMER KARLHEINZ ,  FISCHER HERMANN ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  SCHNEIDER ROLF ,  WULZ KLAUS ,  RAUBENHEIMER HANS-JUERGEN

IPC: C08F20/00 ,  C08F20/02 ,  C08F210/00 ,  C08F222/06 ,  C09K23/52 ,  C11D3/37 ,  D21H17/43 ,  D21H19/58 ,  C08F2/00 ,  C08F22/06

Abstract: Maleic anhydride copolymer powders are prepared by a process wherein a solution or dispersion of maleic anhydride in an alkyl vinyl ether and/or an alkene, containing from 3 to 25 moles of the alkyl vinyl ether and/or alkene per mole of maleic anhydride, is brought into contact with a powder bed under polymerization conditions, and is polymerized in the bed whilst the reaction mass is circulated and the powder state is maintained, and the heat generated during polymerization is removed by evaporating excess monomer which boils lower than maleic anhydride. The products are useful as crust inhibitors for detergents, dispersants for pigments, paper sizes, adhesive auxiliaries, cosmetic auxiliaries and thickeners for aqueous polymer solutions or dispersions.

公开(公告)号：CA1175192A

公开(公告)日：1984-09-25

申请号：CA407076

申请日：1982-07-12

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  SCHNEIDER ROLF ,  KROENER MICHAEL ,  MUELLER HANS ,  LINHART FRIEDRICH

IPC: B01D21/01 ,  C08F8/00 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02 ,  D06Q1/10 ,  D21H17/34 ,  D21H17/37 ,  D21H17/45 ,  D21H3/38 ,  C08F120/54

Abstract: Linear basic polymers containing, as characteristic components, from 90 to 10 mole % of copolymerized unit of the formula and from 10 to 90 mole % of copolymerized units of the formula are obtained by polymerizing the compound of the formula CH2=CH-NH-CHO (N-vinylformamide) to a polyvinylformamide in the presence of a free radical polymerization initiator and splitting off of the formyl group from the resulting polymer at from 20 to 200.degree.C in the presence of an acid or base. The reaction products are used as retention agents, drainage assistants and flocculants in papermaking.

公开(公告)号：GB2118576A

公开(公告)日：1983-11-02

申请号：GB8305190

申请日：1983-02-24

Applicant: BASF AG

Inventor： HABERMANN WOLFGANG ,  HAMMES PETER ,  FELGER JOACHIM ,  HOCK KARL-LUDWIG ,  BRUNNMUELLER FRIEDRICH ,  KNITTEL HELMUT ,  KRANZ JOACHIM ,  SCHNEIDER ROLF ,  THOMA PETER

IPC: C09C1/26 ,  C25B1/00

Abstract: Blue iron hexacyanoferrate-III pigments are produced by a process wherein complex iron-II hexacyanoferrate-II (Berlin white) is prepared by electrolysis of an aqueous catholyte solution containing (a) an iron-II salt, (b) an alkali metal salt, an ammonium salt or a mixture of these, and (c) hydrogen cyanide, in an electrolysis cell in which the anode chamber and cathode chamber are separated by an ion exchange membrane, using an electrically conductive aqueous liquid in the anode chamber, and the iron-II hexacyanoferrate-II obtained is then converted to the blue pigment. The process gives Berlin white, which is substantially free from salt, in high yield and high purity. Pollution caused by the process is very low, since only a small amount of salt is produced. Compared with the corresponding blue pigments produced by prior art processes, the pigments obtained give purer colorations with better gloss, and are of higher color strength.

公开(公告)号：AU8609282A

公开(公告)日：1983-01-27

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

公开(公告)号：FI822102A0

公开(公告)日：1982-06-11

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

IPC: C08F8/00 ,  C08F226/02 ,  D21C9/18 ,  D21H17/34 ,  D21H17/45 ,  C08G

公开(公告)号：CA997368A

公开(公告)日：1976-09-21

申请号：CA167900

申请日：1973-04-03

Applicant: BASF AG

Inventor： HERTEL OTTO ,  SCHLECHT HELMUT ,  SCHNEIDER ROLF

IPC: C07C19/01 ,  C07B39/00 ,  C07C17/10 ,  C07C309/80

公开(公告)号：NO854766A

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 ,  C07C67/00 ,  C07C211/10 ,  C07C253/00 ,  C07C253/08 ,  C07C255/19 ,  C07C255/24 ,  C07C255/29 ,  C07C

CPC classification number: C01C3/04 ,  C07C253/20 ,  C07C255/12