公开(公告)号：DE102004057874A1

公开(公告)日：2006-06-01

申请号：DE102004057874

申请日：2004-11-30

Applicant: BASF AG

Inventor： RIEGEL ULRICH ,  DANIEL THOMAS ,  STUEVEN UWE ,  ELLIOTT MARK

IPC: C08K5/35 ,  A61L15/60 ,  C08F20/06 ,  C08F265/06 ,  C08F293/00 ,  C08J3/24 ,  C08K5/17

Abstract: Method for post-crosslinking of water-absorbing polymer particle (I) comprises superimposing one/more oxidizing gas (having a total partial pressure of less than 140 mbar) with a water absorbing polymer particle in dry atmosphere. Independent claims are also included for: (1) a water-absorbing polymer particles obtained by the procedure; and (2) a hygienic article comprising (I).

公开(公告)号：ZA200303812B

公开(公告)日：2004-08-13

申请号：ZA200303812

申请日：2003-05-16

Applicant: BASF AG

Inventor： DANIEL THOMAS ,  HEIDE WILFRIED ,  STUEVEN UWE ,  WICKEL STEFAN

IPC: C08F2/01 ,  B01J19/20 ,  C08F2/04 ,  C08F2/10 ,  C08F8/00 ,  C08F220/04 ,  C08F220/06 ,  C08F220/56 ,  C08F290/06 ,  C08F

Abstract: The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a first cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable componenents and can be advantageously produced by a continuous method.

公开(公告)号：DE59908768D1

公开(公告)日：2004-04-08

申请号：DE59908768

申请日：1999-09-28

Applicant: BASF AG

Inventor： DENTLER JOACHIM ,  HERFERT NORBERT ,  SCHLIWA RUDOLF ,  STUEVEN UWE ,  ENGELHARDT FRITZ

IPC: A61F13/15 ,  A61F13/53 ,  A61L15/00 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F2/01 ,  C08F8/44 ,  C08F220/06 ,  C08F251/00 ,  C08F261/04 ,  C08F283/00 ,  C08F283/02 ,  C08F283/06 ,  C08F291/00 ,  C08J3/12 ,  C09K3/00

Abstract: Water-swellable hydrophilic polymers are prepared by neutralization of the acidic hydrogel having a degree of neutralization of 0-40 mol % to an ultimate degree of neutralization of 60-85 mol % by mixing with a neutralizing agent in a mincer comprising a system of screw, rotating blade, restricted flow zone and breaker plate, whereinthe mincer has a power output of from 1000 to 6000 Wh/m3the hydrogel passes through a zone having-an energy dissipation density of from 400 to 800 W/1 of mixing volumethe average residence time of the hydrogel in the mincer is from 5 to 30 secondsthe breaker plate has an open area of from 20 to 40%.

公开(公告)号：DE102005002412A1

公开(公告)日：2006-07-27

申请号：DE102005002412

申请日：2005-01-18

Applicant: BASF AG

Inventor： LOESCH DENNIS ,  SEIDL VOLKER ,  STUEVEN UWE

IPC: C08F293/00 ,  A61L15/22 ,  A61L15/60 ,  C08F2/44 ,  C08F20/02 ,  C08F20/06 ,  C08F283/06

Abstract: Water-absorbing polymeric particles are produced by spray polymerization of a monomer solution in a process wherein the monomer solution is spray dispensed and at least one crosslinker accumulates in the region of the droplet surface, and are useful in hygiene articles.

公开(公告)号：DE102005001789A1

公开(公告)日：2006-07-27

申请号：DE102005001789

申请日：2005-01-13

Applicant: BASF AG

Inventor： WEISMANTEL MATTHIAS ,  FUNK RUEDIGER ,  DANIEL THOMAS ,  STUEVEN UWE

IPC: B07B1/00 ,  C08F6/04 ,  C08F20/06

公开(公告)号：PL347244A1

公开(公告)日：2002-03-25

申请号：PL34724499

申请日：1999-09-28

Applicant: BASF AG

Inventor： DENTLER JOACHIM ,  HERFERT NORBERT ,  SCHLIWA RUDOLF ,  STUEVEN UWE ,  ENGELHARDT FRITZ

IPC: A61F13/15 ,  A61F13/53 ,  A61L15/00 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F2/01 ,  C08F8/44 ,  C08F220/06 ,  C08F251/00 ,  C08F261/04 ,  C08F283/00 ,  C08F283/02 ,  C08F283/06 ,  C08F291/00 ,  C08J3/12 ,  C09K3/00

Abstract: Water-swellable hydrophilic polymers are prepared by neutralization of the acidic hydrogel having a degree of neutralization of 0-40 mol % to an ultimate degree of neutralization of 60-85 mol % by mixing with a neutralizing agent in a mincer comprising a system of screw, rotating blade, restricted flow zone and breaker plate, whereinthe mincer has a power output of from 1000 to 6000 Wh/m3the hydrogel passes through a zone having-an energy dissipation density of from 400 to 800 W/1 of mixing volumethe average residence time of the hydrogel in the mincer is from 5 to 30 secondsthe breaker plate has an open area of from 20 to 40%.

公开(公告)号：DE59900628D1

公开(公告)日：2002-02-21

申请号：DE59900628

申请日：1999-02-19

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  FRENZ VOLKER ,  STUEVEN UWE ,  ENGELHARDT FRITZ ,  DANIEL THOMAS

IPC: A61F13/15 ,  B01J20/26 ,  C08F8/42 ,  C08J3/24 ,  C08K5/10 ,  C08L101/14

公开(公告)号：AT205866T

公开(公告)日：2001-10-15

申请号：AT95109493

申请日：1995-06-20

Applicant: BASF AG

Inventor： ENGELHARDT FRITZ DR ,  HERFERT NORBERT DR ,  STUEVEN UWE ,  RIEGEL ULRICH ,  FUNK RUEDIGER DR ,  SEIP DETLEV DR

IPC: A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  B01D15/00 ,  B01J20/26 ,  C08G59/40 ,  C08J3/12 ,  C08J7/04 ,  C08L1/00 ,  C08L1/02 ,  C08L3/00 ,  C08L3/04 ,  C08L33/04 ,  C08L33/08 ,  C08L33/10 ,  C08L51/00 ,  C08L59/00 ,  C08L63/00 ,  C08L67/00 ,  C08L67/02 ,  C08L69/00 ,  C08L75/00 ,  C08L75/02 ,  C08L75/04 ,  C08L83/02 ,  C08L83/04 ,  C08L101/00

公开(公告)号：DE102005031114A1

公开(公告)日：2007-01-18

申请号：DE102005031114

申请日：2005-07-04

Applicant: BASF AG

Inventor： HILLEBRECHT ANNEMARIE ,  STUEVEN UWE ,  MIERT LEO ,  ESBROECK DOMINICUS VAN ,  BRIAN BERND ,  CHSZANIECKI SIEGFRIED

IPC: C08J3/00 ,  B01F7/04 ,  B01F7/08 ,  B01F15/02 ,  B01J4/00 ,  B29B7/46 ,  B29B7/88 ,  C08F2/44

Abstract: The invention relates to the use of an apparatus for adding at least one solid or viscous liquid additive, or an additive dispersed in solvent, to a reactor interior of a reactor for preparing crosslinked, finely divided polymers by copolymerizing (a) water-soluble, monoethylenically unsaturated monomers and (b) from 0.001 to 5 mol %, based on the monomers (a), of monomers comprising at least two polymerizable groups, (c) from 0 to 20 mol %, based on the monomers (a), of water-insoluble monoethylenically unsaturated monomers, where the apparatus comprises at least one screw for conveying the at least one additive and the at least one screw ends in an addition orifice substantially flush with the inner wall of the reactor interior.

公开(公告)号：AT340199T

公开(公告)日：2006-10-15

申请号：AT02745400

申请日：2002-06-21

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA ,  STUEVEN UWE ,  BECK MARTIN

IPC: C08F20/06 ,  C08F220/04 ,  D04H1/40 ,  D06M15/263 ,  A61L15/00

Abstract: The present invention relates to novel hydrophilic swellable addition polymers comprising improved odor control, a process for their preparation and their use for absorbing aqueous fluids and a process for screening superabsorbents.