公开(公告)号：JPH05214038A

公开(公告)日：1993-08-24

申请号：JP21918292

申请日：1992-08-18

Applicant: BASF AG

Inventor： HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  NILZ CLAUDIA ,  LINHART FRIEDRICH ,  STANGE ANDREAS

IPC: C08F251/02 ,  C08F251/00 ,  D21H17/34 ,  D21H17/35 ,  D21H17/37 ,  D21H21/18

公开(公告)号：JPH1081654A

公开(公告)日：1998-03-31

申请号：JP18101797

申请日：1997-07-07

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  SCHMIDT WILLI ,  OFTRING ALFRED ,  PROLL THEO ,  HARTMANN HEINRICH

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02

Abstract: PROBLEM TO BE SOLVED: To provide a method for purifying N-vinylformamide capable of producing high-quality N-vinylformamide for making a polymer having especially high molecular weight having a K value by Fikentscher's method larger than 200. SOLUTION: This N-vinylformamide distillate is obtained by fractional distillation of N-formamide using a column under reduced pressure. The distillation is continuously carried out in the presence of formamide under 0.5-30 millibar measured at the top of the column. The distillation is controlled so that N- vinylformamide having 1-6wt.% formamide content as the distillate is obtained to give the objective N-vinylformamide for producing an N-vinylformamide polymer having a K value larger than 200, containing 1-6wt.% formamide.

公开(公告)号：JPH0770232A

公开(公告)日：1995-03-14

申请号：JP5403494

申请日：1994-03-24

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

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.

公开(公告)号：US3697575A

公开(公告)日：1972-10-10

申请号：US3697575D

申请日：1969-12-22

Applicant: BASF AG

Inventor： NAARMANN HERBERT ,  HARTMANN HEINRICH

IPC: C07F5/04 ,  C08F30/06 ,  C08F283/01 ,  C08K5/55

CPC classification number: C08K5/55 ,  C07F5/04 ,  C08F30/06 ,  C08F283/01 ,  Y10S260/24 ,  C08F228/02

Abstract: Boric esters of the formula

公开(公告)号：US3542741A

公开(公告)日：1970-11-24

申请号：US3542741D

申请日：1968-02-20

Applicant: BASF AG

Inventor： HARTMANN HEINRICH ,  WILHELM HANS ,  LISSNER OSKAR

IPC: C08G18/62 ,  C08F1/80 ,  C08F47/12

CPC classification number: C08G18/6229

公开(公告)号：JPS63182318A

公开(公告)日：1988-07-27

申请号：JP140288

申请日：1988-01-08

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH ,  GOECKEL ULRICH ,  RICHTER FELIX ,  RAUBENHEIMER HANS-JUERGEN ,  WINKLER EKHARD

IPC: C23F14/02 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  C08F2/04 ,  C08F2/06 ,  C08F4/32 ,  C08F20/02 ,  C08F222/06

公开(公告)号：JPS6274902A

公开(公告)日：1987-04-06

申请号：JP22224586

申请日：1986-09-22

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

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.

公开(公告)号：US3677813A

公开(公告)日：1972-07-18

申请号：US3677813D

申请日：1969-12-17

Applicant: BASF AG

Inventor： ECKERT GUENTER ,  MARX MATTHIAS ,  HARTMANN HEINRICH ,  WUERTELE LOTHAR

IPC: D06N3/00 ,  C08F246/00 ,  C14C11/00 ,  D06N3/04 ,  B44D1/32 ,  C14C9/00

CPC classification number: D06N3/042 ,  C14C11/003 ,  Y10T428/31855 ,  Y10T428/31942

Abstract: PROCESS FOR DRESSING LEATHER AND SYNTHETIC LEATHER SUBSTITUTES BY APPLYING TO THE LEATHER A COMPOSITION COMPRISING (A) A COPOLYMER CARRYING ACETYL ACETATE GROUPS OR CYANO ACETATE GROUPS, IN THE FORM OF A SOLUTION OR DISPERSION IN AN ORGANIC LIQUID, AND (B) ONE OR MORE ALDEHYDES OR A COMPOUND CAPABLE OF DISSOCIATING TO GIVE AN ALKEHYDE, AND DRYING THE COATING. THE RESULTING DRESSING IS WATERPROOF AND RESISTANT TO SOLVENTS.

公开(公告)号：US3585167A

公开(公告)日：1971-06-15

申请号：US3585167D

申请日：1968-12-09

Applicant: BASF AG

Inventor： NAARMANN HERBERT ,  HARTMANN HEINRICH ,  MARX MATTHIAS ,  DURKHEIM BAD ,  SCHNEIDER KURT

IPC: C08G18/00 ,  C08G18/62 ,  C08G22/04 ,  C08G22/16

CPC classification number: C08G18/6287 ,  C08G18/00

Abstract: COATINGS PREPARED BY REACTION OF POLYISOCYANATES WITH COPOLYMERS CONTAINING HYDROXYL GROUPS AND POLYMERIZED UNITS OF UNSATURATED THIOGLYCOL ETHERS.

公开(公告)号：US3632789A

公开(公告)日：1972-01-04

申请号：US3632789D

申请日：1968-12-05

Applicant: BASF AG

Inventor： WILHELM HANS ,  HARTMANN HEINRICH ,  GULBINS KLAUS

IPC: C08F8/30 ,  C08G18/62 ,  C08G22/08 ,  C08G22/10

CPC classification number: C08F8/30 ,  C08G18/622

Abstract: PROCESS FOR THE PRODUCTION OF COATINGS BASED ON REACTION PRODUCTS OF POLYISOCYANATES WITH COPOLYMERS CONTAINING HYDROXYL GROUPS WHICH HAVE BEEN PREPARED BY POLYMERIZATION OF THE MONOMERS IN AN ORGANIC LIQUID (WHICH DOES NOT REACT WITH ISOCYANATES IN THE PRESENCE OF A SOLUBLE POLYMER) AS THE INSOLUBLE COPOLYMER DISPERSED IN THE ORGANIC LIQUID.