公开(公告)号：DE4434605A1

公开(公告)日：1996-04-04

申请号：DE4434605

申请日：1994-09-28

Applicant: BASF AG

Inventor： KIRCHGAESNER UWE DR ,  JAECKH CHRISTOF DR ,  DECHER JAKOB ,  WITTMANN OTTO ,  NIESSNER MANFRED DR

IPC: C08G12/38 ,  C08G12/46 ,  C08L61/20 ,  D21H17/51 ,  D21H17/55 ,  C08L61/28 ,  B32B27/04 ,  B32B27/42 ,  C08J5/24 ,  C08L61/30 ,  C08L77/00

公开(公告)号：DE59301126D1

公开(公告)日：1996-01-25

申请号：DE59301126

申请日：1993-01-14

Applicant: BASF AG

Inventor： DERSCH ROLF DR ,  GRUND NORBERT DR ,  NIESSNER MANFRED DR ,  SCHNEIDER REINHARD DR

IPC: C09D7/00

公开(公告)号：DE4426002A1

公开(公告)日：1996-01-25

申请号：DE4426002

申请日：1994-07-22

Applicant: BASF AG

Inventor： MEIER ANTON DR ,  HITTINGER CHRISTEL DR ,  SCHATZ HERMANN ,  REINER TILMAN DR ,  LEHNERT HEINZ ,  NIESSNER MANFRED DR

IPC: C08G14/06 ,  C08L61/34 ,  C08G12/12 ,  C08G12/32 ,  C08J3/03

Abstract: The invention concerns a process for preparing aqueous aminoplastic resins which are suitable as binders for producing derived timber products. The process is characterized in that: a) 1 mole melamine; b) a concentrated aqueous solution of 0.5 to 5 moles urea and 3 to 6 moles formaldehyde per mole of urea, in which urea and formaldehyde can also be present in the form of their reaction products, c) 0.01 to 0.5 moles phenol or a phenol derivative which can be polycondensed, d) 0 to 9 moles formaldehyde, and e) 0 to 1 mole of a further compound which can be polycondensed are reacted with one another at 50 to 100 DEG C and a pH of 7.5 to 10.0 until the solution attains a viscosity of 10 to 1500 mPa.s, after which this solution is left to cool, and f) is mixed with 0.55 to 0.75 moles urea per mole of the total amount of urea used as components (b) and (f).

公开(公告)号：DE59203584D1

公开(公告)日：1995-10-12

申请号：DE59203584

申请日：1992-11-21

Applicant: BASF AG

Inventor： KIRCHGAESSNER UWE DR ,  DECHER JAKOB ,  JAECKH CHRISTOF DR ,  WITTMANN OTTO ,  NIESSNER MANFRED DR ,  PETERSEN HARRO DR

IPC: B27N3/06 ,  B27N7/00 ,  B32B27/04 ,  C08L61/28 ,  C08L75/02 ,  D06N7/06 ,  D21H17/51 ,  D21H17/57 ,  D21H27/26 ,  D21H17/71

公开(公告)号：AT127554T

公开(公告)日：1995-09-15

申请号：AT92119866

申请日：1992-11-21

Applicant: BASF AG

Inventor： KIRCHGAESSNER UWE DR ,  DECHER JAKOB ,  JAECKH CHRISTOF DR ,  WITTMANN OTTO ,  NIESSNER MANFRED DR ,  PETERSEN HARRO DR

IPC: B27N3/06 ,  B27N7/00 ,  B32B27/04 ,  C08L61/28 ,  C08L75/02 ,  D06N7/06 ,  D21H17/51 ,  D21H17/57 ,  D21H27/26 ,  D21H17/71 ,  D21H27/22

公开(公告)号：DE59203080D1

公开(公告)日：1995-09-07

申请号：DE59203080

申请日：1992-05-13

Applicant: BASF AG

Inventor： KIRCHGAESSNER UWE DR ,  DECHER JAKOB ,  NIESSNER MANFRED DR ,  WITTMANN OTTO ,  POHL HANS HENNING DR

IPC: B27K3/50 ,  B27N7/00 ,  B32B29/00 ,  C08G12/34 ,  C08G12/40 ,  C08L61/20 ,  C08L61/28 ,  D21H27/24

公开(公告)号：DE59007322D1

公开(公告)日：1994-11-03

申请号：DE59007322

申请日：1990-07-26

Applicant: BASF AG

Inventor： NIESSNER MANFRED DR ,  BECK JUERGEN ,  HARTMANN HEINRICH DR ,  KEMNA ANDREAS H ,  WICKEL STEFAN DR

IPC: A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  B01J20/26 ,  C08F6/00 ,  C08J3/00

Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.

公开(公告)号：DE4235327A1

公开(公告)日：1994-04-21

申请号：DE4235327

申请日：1992-10-20

Applicant: BASF AG

Inventor： HITTINGER CHRISTEL DR ,  LEHMANN GUNTER ,  NIESSNER MANFRED DR ,  DENZINGER WALTER ,  HARTMANN HEINRICH DR

IPC: C08G12/12 ,  C08L61/24 ,  C08L97/02 ,  B27N1/00 ,  B27N3/00

公开(公告)号：DE59004328D1

公开(公告)日：1994-03-03

申请号：DE59004328

申请日：1990-11-12

Applicant: BASF AG

Inventor： ASCHERL HERMANN DIPL ING ,  BORHO KLAUS DR ,  DIETRICH GERHARD DR ,  GRAMMATIS ZAFIRIOS DR ,  NIESSNER MANFRED DR ,  SARTOR KARL-HEINZ DIPL ING ,  SCHLINDWEIN HEINZ

IPC: B01J19/00 ,  B01J19/18 ,  C07C213/00 ,  C07C213/02 ,  C07C219/08 ,  C07C231/12 ,  C07C233/38

公开(公告)号：DE4203278A1

公开(公告)日：1993-08-12

申请号：DE4203278

申请日：1992-02-06

Applicant: BASF AG

Inventor： KEMPTER FRITZ ERDMANN DR ,  NIESSNER MANFRED DR ,  DIENER RALPH DR ,  THIELE HEINO DR ,  WEISS WOLFRAM DR ,  RENZ HANS DR

IPC: B01J19/18 ,  C08F2/00

Abstract: The continuous polymerisation of vinyl monomers by formation of vinyl polymers (I) with a mol. wt. of 1000-20,000 is claimed. The polymerisation is carried out at 110-270 deg. C in a ring slit (slit width 0.5-1.00 mm) that is bounded on the inner side by a rotor. Also claimed is the use of (I) as binding agents for paints, protective coatings, paper coating materials and printing inks. The reaction temp. is 150-270 deg. C and the polymer dispersivity (Mw/Mn) of (I) is less than 3.5. A portion of the volumetric flow is recirculated through the ring slit such that the recycle ratio of recirculated volumetric flow to throughput is 2-35. The rotor promotes reacton by thorough mixing and has a tangential avelocity of 0.5-2 m/s. The reaction is carried out in 0-40% of a solvent (w.r.t. monomer). The mixt. of monomers comprises 60-100 wt.% (meth)acrylic acid esters. Polymerisation initiator is added in a molar ratio of 0.0005:1 to 0.1:1 (w.r.t. monomer).