公开(公告)号：ES2219310T3

公开(公告)日：2004-12-01

申请号：ES00906246

申请日：2000-01-29

Applicant: BASF AG

Inventor： FUNK RUDIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA ,  BROWN PATRICIA D ,  ENGELHARDT FRIEDRICH ,  WOODRUM GUY T

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F8/00 ,  C08F20/06 ,  C08F20/58 ,  C08F22/02 ,  C08F22/38 ,  C08F28/02 ,  C08F220/04 ,  C08F291/00 ,  C08J3/12 ,  C08J3/24 ,  C08F220/06 ,  A61L15/00

Abstract: Hidrogel altamente hinchable, hidrófilo y reticulado a base de monómeros polimerizados o a base de polímeros de injerto, caracterizado porque muestra un Pressure Absorbency Index

公开(公告)号：BR0212878A

公开(公告)日：2004-10-13

申请号：BR0212878

申请日：2002-09-26

Applicant: BASF AG

Inventor： FUNK R DIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA

IPC: A61F5/44 ,  A61L15/46 ,  A61L15/60 ,  C08L57/00

Abstract: The present invention relates to polymer mixtures comprising hydrogel forming polymers capable of absorbing aqueous fluids, having different pH values and each being preparable by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof, their preparation, use and hygiene articles containing same. More particularly, the invention relates to 2-component polymer mixtures comprising polymers having a pH range from acidic to neutral.

公开(公告)号：AU2003229743A1

公开(公告)日：2003-11-17

申请号：AU2003229743

申请日：2003-04-29

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  MITCHELL MICHAEL ,  ENGELHARDT FRIEDRICH

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/42 ,  A61L15/60 ,  B32B27/18 ,  B32B27/22 ,  C08K5/04 ,  C08L101/14

Abstract: A flexible absorbent sheet material containing an acidic water-absorbing resin, a basic water-absorbing resin, and a plasticizer, and its method of manufacture, are disclosed. The sheets contain about 60% to 100% by weight of the acidic and basic water-absorbent resin and plasticizer. The absorbent sheets have unexpected flexibility and structural integrity, while exhibiting exceptional water absorption and retention properties.

公开(公告)号：DE10116757A1

公开(公告)日：2002-10-10

申请号：DE10116757

申请日：2001-04-04

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  BECKER ARMIN ,  BRUCHMANN BERND ,  TREULING ULRICH

IPC: C08G18/10 ,  C08G18/12 ,  C08G18/28 ,  C08G18/38 ,  C08G18/48 ,  C08G18/79 ,  A61F13/15 ,  A61F13/53 ,  A61F15/00

Abstract: A polyurethane foam is obtained by reacting total amount of (cyclo)aliphatic isocyanate with a portion of compound (B) containing 2 or more isocyanate-reactive hydrogen atoms to give prepolymer which is reacted with remaining compound (B), or vice-versa. The foam has yellowness index, based on ASTMD 1925-70 of less than 30 and tensile strength based on DIN 53571 of 60 kPa or more. Independent claims are included for the following: (1) preparation of polyurethane foam by the above mentioned reaction; and (2) use of polyurethane foam.

公开(公告)号：AU1232502A

公开(公告)日：2002-04-29

申请号：AU1232502

申请日：2001-10-17

Applicant: BASF AG

Inventor： FRENZ VOLKER ,  HERFERT NORBERT ,  WEISMANTEL MATTHIAS ,  RIEGEL ULRICH ,  ENGELHARDT FRIEDRICH ,  FUNK RUDIGER

IPC: A61L15/60 ,  C08F220/04 ,  C08F271/02

公开(公告)号：BR0009873A

公开(公告)日：2002-04-23

申请号：BR0009873

申请日：2000-04-11

Applicant: BASF AG

Inventor： HAHNLE HANS-JOACHIM ,  DYLLICK-BRENZINGER RAINER ,  DER ULRICH SCHR ,  HERFERT NORBERT ,  RIEGEL ULRICH

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  C08J3/24 ,  C08L101/14

公开(公告)号：DE10013217A1

公开(公告)日：2001-09-20

申请号：DE10013217

申请日：2000-03-17

Applicant: BASF AG

Inventor： ENGELHARDT FRIEDRICH ,  HERFERT NORBERT ,  DANIEL THOMAS ,  FRENZ VOLKER ,  RIEGEL ULRICH

IPC: A61L15/18 ,  A61L15/60 ,  B01J20/26 ,  C08G77/02 ,  B01J20/22 ,  C08G63/52 ,  C08G63/84 ,  C08K7/26

Abstract: Hydrophilic, swellable, hydrogel-forming polymers (I) containing an aluminosilicate component (II).

公开(公告)号：DE19931720A1

公开(公告)日：2001-01-11

申请号：DE19931720

申请日：1999-07-08

Applicant: BASF AG

Inventor： HAEHNLE HANS-JOACHIM ,  DYLLICK-BRENZINGER RAINER ,  SCHROEDER ULRICH ,  HERFERT NORBERT ,  RIEGEL ULRICH

IPC: C08J3/24 ,  C08L101/14

Abstract: A hydrogel forming polymer mixture (I) contains: (A) a hydrogel forming polymer having acidic groups; and (B) a hydrogel forming polymer having amine and /or imine groups such that the ratio of acid groups in (A) to the sum of amine and/or imine groups in (B) is 1:9-9:1.

公开(公告)号：CA2361577A1

公开(公告)日：2000-08-10

申请号：CA2361577

申请日：2000-01-29

Applicant: BASF AG

Inventor： BROWN PATRICIA D ,  WOODRUM GUY T ,  ENGELHARDT FRIEDRICH ,  FUNK RUDIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F8/00 ,  C08F20/06 ,  C08F20/58 ,  C08F22/02 ,  C08F22/38 ,  C08F28/02 ,  C08F220/04 ,  C08F291/00 ,  C08J3/12 ,  C08J3/24 ,  C08F220/06 ,  A61L15/00

Abstract: The invention relates to cross-linked, hydrophilic highly swellable hydrogel s on the basis of polymerized monomers or on the basis of graft polymers that have a pressure absorbency index of ~100 and a vertical absorption under a pressure of 1922.8 Pa of at least 12 g/g. The invention further relates to a method for producing such hydrogels by radical polymerization of hydrophilic monomers containing acidic groups, their alkali metal or ammonium salts with (a) a copolymerization cross-linking agent which contains at least two ethylenically unsaturated double bonds in the molecule, and (b) with a reactive cross-linking agent A which has an ethylenically unsaturated double bond and at least one functional group that forms covalent bonds with the acidic groups of the hydrophilic polymers, a reactive cross-linking agent B which has at least two functional groups that form covalent bonds with the acidic groups of the hydrophilic polymers, and/or with ions of polyvalent alcohols, optionally in the presence of at least one graft base, to give a cross-linked, hydrophilic base polymer, reducing the base polymer in size an d subjecting the surface of the particles of the base polymer to a secondary cross-linking step. The invention further relates to the use of the highly swellable hydrogels as absorption agents for water and aqueous liquids.

公开(公告)号：CA2346492A1

公开(公告)日：2000-05-04

申请号：CA2346492

申请日：1999-10-14

Applicant: BASF AG

Inventor： SCHLIWA RUDOLF ,  STUVEN UWE ,  DENTLER JOACHIM ,  KLOTZSCHE HELMUT ,  HERFERT NORBERT

IPC: B01J20/26 ,  B01J20/30 ,  B29B13/06 ,  C08F6/00 ,  C08J3/00 ,  C08J3/12 ,  F26B1/00

Abstract: The present invention relates to a complete drying method for hydrogels, whereby the following steps are carried out successively: a) the hydrogels a re contact dried or dried by convection, b) the hydrogels are pre-crushed, c) t he pre-crushed hydrogels are ground by means of a coarse crushing mill or a crushing roller mill, d) the damp elastic hydrogel particles are separated, e) the damp elastic hydrogel particles are finally dried.