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公开(公告)号:DE3927812A1
公开(公告)日:1991-02-28
申请号:DE3927812
申请日:1989-08-23
Applicant: BASF AG
Inventor: FLORY KLAUS DR , STANGE ANDREAS DR , KROENER MICHAEL DR , SENDHOFF NORBERT DR
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.
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公开(公告)号:DE2259680A1
公开(公告)日:1974-07-04
申请号:DE2259680
申请日:1972-12-06
Applicant: BASF AG
Inventor: BRANDEIS JOHANN DR , FLORY KLAUS DR , FEINAUER ANTON DR
IPC: C08G12/38 , C08G12/40 , D06M15/423 , C08G9/08
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公开(公告)号:DE4405622C2
公开(公告)日:1997-02-13
申请号:DE4405622
申请日:1994-02-22
Applicant: BASF AG
Inventor: BALZER WOLF-DIETER DR , FLORY KLAUS DR , KOEFFER DIETER DR , MOHR JUERGEN DR
IPC: C07C41/42 , C07F5/04 , C10M111/04 , C10M175/00
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公开(公告)号:ES2047740T3
公开(公告)日:1994-03-01
申请号:ES90106514
申请日:1990-04-05
Applicant: BASF AG
Inventor: BERECK ATTILA DR , FLORY KLAUS DR , KUMMER MATTHIAS DR , REINERT FRIEDRICH DR
IPC: C07C233/02 , C07C235/04 , C07C271/16 , C07C275/10 , C08G12/42 , C08L61/20 , D06M13/02 , D06M13/322 , D06M13/35 , D06M13/352 , D06M13/355 , D06M13/358 , D06M13/372 , D06M13/402 , D06M13/419 , D06M13/432 , D06M15/423 , D06M15/45 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08
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公开(公告)号:DE3909007A1
公开(公告)日:1990-09-27
申请号:DE3909007
申请日:1989-03-18
Applicant: BASF AG
Inventor: FLORY KLAUS DR , EISELE WOLFGANG DR , STANGE ANDREAS DR
Abstract: Cationic urea-formaldehyde condensates, which may be obtained by (a) the conversion of urea with alkanol amines in the mol ratio 1 to 6:1 at temperatures of 130 to 180 DEG C with separation of ammonia; (b) the methylolisation of the conversion products obtained in step (a) in an aqueous medium in the basic pH range with formaldehyde; (c) the condensation of the methylolisation products in an aqueous medium at a pH of 0 to 6, the condensation reaction being stopped by setting the pH to between 6.2 and 8 and, where necessary, diluting the reaction mixture with water; a process for manufacturing the condensates, and their use as stiffening agents in papermaking.
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公开(公告)号:DE3815724A1
公开(公告)日:1989-11-16
申请号:DE3815724
申请日:1988-05-07
Applicant: BASF AG
Inventor: KEMPTER FRITZ ERDMANN DR , MATEJCEK FRANZ DR , NEUBACH WERNER , FLORY KLAUS DR
IPC: C08G12/40 , C08G12/12 , D04H1/58 , D06M15/427 , D06M101/00
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公开(公告)号:AT35420T
公开(公告)日:1988-07-15
申请号:AT84103943
申请日:1984-04-09
Applicant: BASF AG
Inventor: PFOHL SIGBERG DR , GUENDER WOLF DR , DIEM HANS DR , FLORY KLAUS DR
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公开(公告)号:DE2860663D1
公开(公告)日:1981-08-06
申请号:DE2860663
申请日:1978-09-29
Applicant: BASF AG
Inventor: AICHER ALBRECHT , FLORY KLAUS DR , PETRI NORBERT DR , SCHUCHART PETER DR , SEBASTIAN ROBERT
IPC: B01J8/06 , C07C45/29 , C07C45/38 , C07C47/04 , C07C47/052
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公开(公告)号:DE4405622A1
公开(公告)日:1995-08-24
申请号:DE4405622
申请日:1994-02-22
Applicant: BASF AG
Inventor: BALZER WOLF-DIETER DR , FLORY KLAUS DR , KOEFFER DIETER DR , MOHR JUERGEN DR
IPC: C07C41/42 , C07F5/04 , C10M111/04 , C10M175/00 , C07C43/11 , C10M105/18 , C10M107/34
Abstract: Reprocessing hydraulic fluids contg. glycol ether borate(s) comprises adding a mixt. of oligo-glycol ethers and/or oligo-glycols to the hydraulic fluids before or during distillation. the mixt. has a higher boiling pt. than that of the mixt. obtd. from the hydraulic fluid.
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公开(公告)号:DK0392349T3
公开(公告)日:1994-02-14
申请号:DK90106514
申请日:1990-04-05
Applicant: BASF AG
Inventor: BERECK ATTILA DR , FLORY KLAUS DR , KUMMER MATTHIAS DR , REINERT FRIEDRICH DR
IPC: C07C233/02 , C07C235/04 , C07C271/16 , C07C275/10 , C08G12/42 , C08L61/20 , D06M13/02 , D06M13/322 , D06M13/35 , D06M13/352 , D06M13/355 , D06M13/358 , D06M13/372 , D06M13/402 , D06M13/419 , D06M13/432 , D06M15/423 , D06M15/45 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08
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