公开(公告)号：DE59903334D1

公开(公告)日：2002-12-12

申请号：DE59903334

申请日：1999-08-06

Applicant: BASF AG

Inventor： ANDERLIK RAINER ,  KREMESKOETTER JENS ,  MAILAHN ELMAR ,  GUENTHERBERG NORBERT ,  ITTEMANN PETER ,  HOFMANN JUERGEN ,  SACK HEINRICH

IPC: C08J3/20 ,  A01N25/18 ,  A61L9/04 ,  C08J3/22 ,  C08J5/00 ,  C08K5/00 ,  C08K5/07 ,  C08L91/00 ,  C08L101/00

公开(公告)号：CA2448143A1

公开(公告)日：2002-12-05

申请号：CA2448143

申请日：2002-05-24

Applicant: BASF AG

Inventor： LANG GABRIELE ,  RATH HANS PETER ,  HUEFFER STEPHAN ,  KREMESKOETTER JENS ,  STOECKELMANN ELMAR

IPC: C08F2/00 ,  C08F2/01 ,  C08F2/06 ,  C08F4/00 ,  C08F4/06 ,  C08F4/12 ,  C08F4/16 ,  C08F4/58 ,  C08F10/00 ,  C08F10/10 ,  C08F110/06 ,  C08F110/10 ,  C08F10/08

Abstract: The invention relates to a method for producing homopolymers and copolymers of isobutene by the continuous cationic polymerization of isobutene or mixtures of isobutene with ethylenically unsaturated comonomers in the presence of an initiator system comprising: i) a Lewis acid selected among covalent metal- halogen compounds and covalent semimetal-halogen compounds; ii) at least one aprotic organic compound (I) having at least one functional group (FG) which , under polymerization conditions, forms a carbocation or a cationogenic compl ex with the Lewis acid, in an organic solvent that is inert to the Lewis acid. The inventive method is characterized in that the polymerization is carried out in a tubular continuous flow reactor that has a number of bends with an alternating bending direction.

公开(公告)号：DE59705081D1

公开(公告)日：2001-11-29

申请号：DE59705081

申请日：1997-02-27

Applicant: BASF AG

Inventor： HAEHNLE HANS-JOACHIM ,  WALTER MANFRED ,  TROPSCH JUERGEN ,  KREMESKOETTER JENS ,  SCHORNICK GUNNAR ,  ANSTOCK THOMAS

IPC: A61F13/00 ,  A61F13/53 ,  A61L15/00 ,  A61L15/16 ,  A61L15/42 ,  A61L15/60 ,  C05G3/80 ,  C08F2/44 ,  C08F2/48 ,  C08F220/06 ,  C08J9/30 ,  C08L33/02

Abstract: Water-absorbing foamlike crosslinked polymers which are obtainable by(I) foaming a polymerizable aqueous mixture which consists of(a) monoethylenically unsaturated monomers containing acid groups, which are at least 50 mol % neutralized,(b) with or without other monoethylenically unsaturated monomers,(c) crosslinker,(d) initiators,(e) from 0.1 to 20% by weight of at least one surfactant,(f) with or without one or more solubilizers and(g) with or without thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents,the foaming being performed by dispersing fine bubbles of a gas inert to free radicals, and(II) polymerizing the foamed mixture with formation of a foamed hydrogel, with or without adjusting the water content of the foamed polymer to from 1 to 60% by weight, processes for their preparation and their use in sanitary articles which are used for absorbing body fluids and in dressing materials for covering wounds are described.

公开(公告)号：AU1924397A

公开(公告)日：1997-09-16

申请号：AU1924397

申请日：1997-02-27

Applicant: BASF AG

Inventor： HAEHNLE HANS-JOACHIM ,  WALTER MANFRED ,  TROPSCH JUERGEN ,  KREMESKOETTER JENS ,  SCHORNICK GUNNAR ,  ANSTOCK THOMAS

IPC: A61F13/00 ,  A61F13/53 ,  A61L15/00 ,  A61L15/16 ,  A61L15/42 ,  A61L15/60 ,  C05G3/80 ,  C08F2/44 ,  C08F2/48 ,  C08F220/06 ,  C08J9/30 ,  C08L33/02

Abstract: Water-absorbing foamlike crosslinked polymers which are obtainable by(I) foaming a polymerizable aqueous mixture which consists of(a) monoethylenically unsaturated monomers containing acid groups, which are at least 50 mol % neutralized,(b) with or without other monoethylenically unsaturated monomers,(c) crosslinker,(d) initiators,(e) from 0.1 to 20% by weight of at least one surfactant,(f) with or without one or more solubilizers and(g) with or without thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents,the foaming being performed by dispersing fine bubbles of a gas inert to free radicals, and(II) polymerizing the foamed mixture with formation of a foamed hydrogel, with or without adjusting the water content of the foamed polymer to from 1 to 60% by weight, processes for their preparation and their use in sanitary articles which are used for absorbing body fluids and in dressing materials for covering wounds are described.

公开(公告)号：DE50210711D1

公开(公告)日：2007-09-27

申请号：DE50210711

申请日：2002-05-24

Applicant: BASF AG

Inventor： HUEFFER STEPHAN ,  RATH HANS PETER ,  LANG GABRIELE ,  KREMESKOETTER JENS ,  STOECKELMANN ELMAR

IPC: C08F10/10 ,  C08F2/00 ,  C08F2/01 ,  C08F2/06 ,  C08F4/00 ,  C08F4/06 ,  C08F4/12 ,  C08F4/16 ,  C08F4/58 ,  C08F10/00 ,  C08F10/08 ,  C08F110/06 ,  C08F110/10

Abstract: Homo- and copolymers of isobutene are prepared by continuous cationic polymerization of isobutene or mixtures of isobutene with ethylenically unsaturated comonomers in the presence of an initiator system comprising:i) a Lewis acid selected from covalent metal-halogen compounds and covalent semimetal-halogen compounds andii) at least one aprotic organic compound I having at least one functional group FG which forms a carbocation or a cationic complex with the Lewis acid under polymerization conditions in an organic solvent inert with respect to the Lewis acid, by a process in which the polymerization is carried out in a tubular flow-through reactor which has a plurality of curves having an alternating direction of curvature.

公开(公告)号：AT370168T

公开(公告)日：2007-09-15

申请号：AT02747321

申请日：2002-05-24

Applicant: BASF AG

Inventor： HUEFFER STEPHAN ,  RATH HANS ,  LANG GABRIELE ,  KREMESKOETTER JENS ,  STOECKELMANN ELMAR

IPC: C08F10/10 ,  C08F2/00 ,  C08F2/01 ,  C08F2/06 ,  C08F4/00 ,  C08F4/06 ,  C08F4/12 ,  C08F4/16 ,  C08F4/58 ,  C08F10/00 ,  C08F10/08 ,  C08F110/06 ,  C08F110/10

Abstract: Homo- and copolymers of isobutene are prepared by continuous cationic polymerization of isobutene or mixtures of isobutene with ethylenically unsaturated comonomers in the presence of an initiator system comprising:i) a Lewis acid selected from covalent metal-halogen compounds and covalent semimetal-halogen compounds andii) at least one aprotic organic compound I having at least one functional group FG which forms a carbocation or a cationic complex with the Lewis acid under polymerization conditions in an organic solvent inert with respect to the Lewis acid, by a process in which the polymerization is carried out in a tubular flow-through reactor which has a plurality of curves having an alternating direction of curvature.

公开(公告)号：DE10125583A1

公开(公告)日：2002-11-28

申请号：DE10125583

申请日：2001-05-25

Applicant: BASF AG

Inventor： HUEFFER STEPHAN ,  RATH HANS PETER ,  LANG GABRIELE ,  KREMESKOETTER JENS ,  STOECKELMANN ELMAR

IPC: C08F2/00 ,  C08F2/01 ,  C08F2/06 ,  C08F4/00 ,  C08F4/06 ,  C08F4/12 ,  C08F4/16 ,  C08F4/58 ,  C08F10/00 ,  C08F10/10 ,  C08F110/06 ,  C08F110/10

Abstract: Production of homo- or co-polymers of isobutene involves continuous cationic polymerisation of isobutene or mixtures of isobutene with unsaturated comonomers in the presence of an initiator system comprising a Lewis acid, and aprotic organic compound(s) with functional group(s) which form carbocations or cationogenic complexes with the Lewis acid under polymerisation conditions. Production of homo- or co-polymers of isobutene involves continuous cationic polymerisation of isobutene or mixtures of isobutene with unsaturated comonomers in the presence of an initiator system comprising (i) a Lewis acid selected from covalent halogen compounds of metals or metalloids, and (ii) aprotic organic compound(s) (I) with functional group(s) (FG) which form carbocations or cationogenic complexes with (i) under polymerisation conditions, in an organic solvent which is inert towards (i). An Independent claim is included for a tubular flow reactor used in the above polymerisation method, including several bends in alternating directions.

公开(公告)号：DE19842203A1

公开(公告)日：2000-02-10

申请号：DE19842203

申请日：1998-08-07

Applicant: BASF AG

Inventor： ANDERLIK RAINER ,  KREMESKOETTER JENS ,  MAILAHN ELMAR

IPC: C08J3/20 ,  A01N25/18 ,  A61L9/04 ,  C08J3/22 ,  C08J5/00 ,  C08K5/00 ,  C08K5/07 ,  C08L91/00 ,  C08L101/00 ,  A61K7/46 ,  C11B9/00

Abstract: The invention relates to a method for producing odorant polymers or plastics, wherein a crushed or fine particle first polymer material is mixed with the desired odorant, is allowed to swell during a predetermined period and then subjected to further treatment at a predetermined pressure and temperature. After swelling with the odorant, the first polymer material can be mixed with a second plastic material, wherein the first polymer material and the second plastic material can be identical or different from each. Odorant polymers can also be obtained by using a polymer as second plastic material. The invention also relates to the odorant polymer or the odorant plastic produced according to the inventive method and to a molding material or an object containing the odorant polymer or the odorant plastic.

公开(公告)号：DE19607551A1

公开(公告)日：1997-09-04

申请号：DE19607551

申请日：1996-02-28

Applicant: BASF AG

Inventor： HAEHNLE HANS-JOACHIM ,  WALTER MANFRED ,  TROPSCH JUERGEN ,  KREMESKOETTER JENS ,  SCHORNICK GUNNAR ,  ANSTOCK THOMAS

IPC: A61F13/00 ,  A61F13/53 ,  A61L15/00 ,  A61L15/16 ,  A61L15/42 ,  A61L15/60 ,  C05G3/80 ,  C08F2/44 ,  C08F2/48 ,  C08F220/06 ,  C08J9/30 ,  C08L33/02 ,  C08F20/04 ,  C05F3/04 ,  B65D65/38 ,  C08J9/16

Abstract: The invention concerns water-absorbent cross-linked polymers in foam form which are obtained by: (I) foaming a polymerizable aqueous mixture which comprises: (a) monoethylenically unsaturated monomers which contain acid groups and are neutralized to at least 50 mol %; (b) optionally other monoethylenically unsaturated monomers; (c) cross-linking agents; (d) initiators; (e) between 0.1 and 20 wt % of at least one surfactant; (f) optionally at least one solubilizer; and (g) optionally thickening agents, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents; foaming occurring by dispersing fine bubbles of a gas which is inert with respect to radicals; and (II) polymerizing the foamed mixture, forming a foam-form hydrogel and optionally adjusting the water content of the foam-form polymer to between 1 and 60 wt %. The invention further concerns a process for preparing these polymers and their use in sanitary articles which are used to absorb body fluids, and in bandaging material for covering wounds.