公开(公告)号：DE102005024144A1

公开(公告)日：2006-11-30

申请号：DE102005024144

申请日：2005-05-23

Applicant: BASF AG

Inventor： SCHUSTER MARITA ,  EISENHARDT ANDREA ,  ARLT ANJA ,  VARENKAMP VOLKER ,  DROGLA VERENA

IPC: C08J9/12 ,  C08G18/18 ,  C08G18/76 ,  C08J9/20

Abstract: The invention relates to a process for producing viscoelastic polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) catalysts, d) blowing agents, wherein ai) diphenylmethane diisocyanate or aii) mixtures of diphenylmethane diisocyanate and polymethylenepolyphenylene polyisocyanates and/or aiii) prepolymers which comprise isocyanate groups and can be prepared by reacting aiv) polyether alcohols with diphenylmethane diisocyanate or mixtures of diphenylmethane diisocyanate and polymethylenepolyphenylene polyisocyanates are used as a) polyisocyanates and mixtures of at least one catalyst ci) and at least one catalyst cii) are used as catalysts.

公开(公告)号：DE10357531A1

公开(公告)日：2005-07-07

申请号：DE10357531

申请日：2003-12-08

Applicant: BASF AG

Inventor： GUETTES BERND ,  ZIELER RALF ,  WETTERLING MONIKA ,  SCHUSTER MARITA ,  KNORR GOTTFRIED ,  OSTROWSKI THOMAS

IPC: C08G18/50 ,  C08G65/26 ,  C08G73/02

Abstract: In the production of polyether alcohols (I) by reacting polyethylene imines (II) with alkylene oxides (III), part or all of (II) is dosed into the reaction mixture during reaction with (III).

公开(公告)号：BR0308127A

公开(公告)日：2005-01-11

申请号：BR0308127

申请日：2003-03-13

Applicant: BASF AG

Inventor： ZASCHKE BERND ,  HOPPE ANDREAS ,  SCHUSTER MARITA ,  WENZEL MARION ,  WAGNER KLAUS

IPC: C08F283/06 ,  C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/65 ,  C08G18/69 ,  C09J175/14

Abstract: The invention relates to graft polyols with a bimodal particle size distribution and a total solid content of between 5 and 65 wt. %. Said polyols contain small particles with a particle diameter of between 0.05 and 0.7 μm and large particles with a particle diameter of between 0.4 and 5.0 μm, whereby the peaks of the large and small particles measured during a representation according to the light-scattering analysis method do not overlap. The total solid content with the defined particle sizes consists of a volumetric fraction of between 5 and 45% small particles and a volumetric fraction of between 95 and 55% large particles, said volumetric fractions totalling 100%. The invention also relates to a method for producing graft polyols of this type and to the use thereof for producing polyurethanes.

公开(公告)号：AT274009T

公开(公告)日：2004-09-15

申请号：AT98101527

申请日：1998-01-29

Applicant: BASF AG

Inventor： FALKE PETER DR ,  HENDREICH REGINA ,  SCHUSTER MARITA ,  ZASCHKE BERND DR

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/66

公开(公告)号：AU2003215659A1

公开(公告)日：2003-09-29

申请号：AU2003215659

申请日：2003-03-13

Applicant: BASF AG

Inventor： ZASCHKE BERND ,  HOPPE ANDREAS ,  SCHUSTER MARITA ,  WENZEL MARION ,  WAGNER KLAUS

IPC: C08F283/06 ,  C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/65 ,  C08G18/69 ,  C09J175/14

Abstract: The invention relates to graft polyols with a bimodal particle size distribution and a total solid content of between 5 and 65 wt. %. Said polyols contain small particles with a particle diameter of between 0.05 and 0.7 μm and large particles with a particle diameter of between 0.4 and 5.0 μm, whereby the peaks of the large and small particles measured during a representation according to the light-scattering analysis method do not overlap. The total solid content with the defined particle sizes consists of a volumetric fraction of between 5 and 45% small particles and a volumetric fraction of between 95 and 55% large particles, said volumetric fractions totalling 100%. The invention also relates to a method for producing graft polyols of this type and to the use thereof for producing polyurethanes.

公开(公告)号：CA2481697A1

公开(公告)日：2003-09-25

申请号：CA2481697

申请日：2003-03-13

Applicant: BASF AG

Inventor： ZASCHKE BERND ,  HOPPE ANDREAS ,  WENZEL MARION ,  SCHUSTER MARITA ,  WAGNER KLAUS

IPC: C08F283/06 ,  C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/65 ,  C09J175/14 ,  C08G18/69

Abstract: The invention relates to graft polyols with a bimodal particle size distribution and a total solid content of between 5 and 65 wt. %. Said polyo ls contain small particles with a particle diameter of between 0.05 and 0.7 .mu .m and large particles with a particle diameter of between 0.4 and 5.0 .mu.m, whereby the peaks of the large and small particles measured during a representation according to the light-scattering analysis method do not overlap. The total solid content with the defined particle sizes consists of a volumetric fraction of between 5 and 45 % small particles and a volumetric fraction of between 95 and 55 % large particles, said volumetric fractions totalling 100 %. The invention also relates to a method for producing graft polyols of this type and to the use thereof for producing polyurethanes.

公开(公告)号：NO20016181L

公开(公告)日：2002-06-24

申请号：NO20016181

申请日：2001-12-18

Applicant: BASF AG

Inventor： MURRAR IMBRIDT ,  PLAUMANN HEINZ ,  WINKLER JUERGEN ,  SCHUSTER MARITA

IPC: C07C273/18 ,  C08G18/16 ,  C08G18/40 ,  C08G18/78 ,  C08G18/00

Abstract: Highly functional aromatic polyisocyanates are prepared by reacting aromatic polyisocyanates, if required as a mixture with further mono- and/or polyisocyanates, with addition of catalytic acidic substances and water, by a process wherein the aromatic polyisocyanates used comprise at least one tolylene diisocyanate and the catalytic acidic substance used is at least one alkyl and/or aralkyl phosphate, and the process is carried out in such a way that the water is added with a temperature/time gradient increase from 5 to 60°/hour and until an isocyanate modification of the starting NCO terminal groups from 1 to 80% is established. The highly functional aromatic polyisocyanates prepared by this process are used for the preparation of polyurethane foams, in particular flexible polyurethane foams.

公开(公告)号：CA2366154A1

公开(公告)日：2002-06-22

申请号：CA2366154

申请日：2001-12-21

Applicant: BASF AG

Inventor： WINKLER JURGEN ,  MURRAR IMBRIDT ,  SCHUSTER MARITA ,  PLAUMANN HEINZ

IPC: C07C273/18 ,  C08G18/16 ,  C08G18/40 ,  C08G18/78 ,  C08G18/76 ,  C08G18/06

Abstract: Highly functional aromatic polyisocyanates are prepared by reacting aromatic polyisocyanates, if required as a mixture with further mono- and/or polyisocyanates, with addition of catalytic acidic substances and water, by a process wherein the aromatic polyisocyanates used comprise at least one tolylene diisocyanate and the catalytic acidic substance used is at least one alkyl and/or aralkyl phosphate, and the process is carried out in such a way that the water is added with a temperature/time gradient increase from 5 to 60.degree./hour and until an isocyanate modification of the starting NCO terminal groups from 1 to 80% is established. The highly functional aromatic polyisocyanates prepared by this process are used for the preparation of polyurethane foams, in particular flexible polyurethane foams.

公开(公告)号：DE19741257A1

公开(公告)日：1999-03-25

申请号：DE19741257

申请日：1997-09-19

Applicant: BASF AG

Inventor： FALKE PETER DR ,  ROTERMUND INGE ,  SCHUSTER MARITA ,  KLIPPERT STEFFEN DR

IPC: C08G18/40 ,  C08G18/65 ,  C08G18/66 ,  C08G18/32 ,  C08L75/04 ,  C08J9/12 ,  B68G11/04

Abstract: A polyol component used for the production of polyurethane foam contains at least one ethoxylated compound with 3-8 reactive hydrogen atoms and a high ethylene oxide content plus low-molecular weight polyfunctional chain-extenders and/or crosslinkers with a high hydroxyl number. Production of polyurethane (PUR) foam comprises reacting (a) optionally modified di- and/or poly-isocyanates, with (b) high-molecular weight compound(s) with at least two reactive hydrogen atoms, (c) ethylene oxide adduct(s) with 3-8, preferably 3-6 reactive H atoms, an ethylene oxide (EO) content of more than 50 wt.% and an OH number of 200-800 mg KOH/g, and (d) low-molecular weight chain- extenders and/or crosslinkers with at least two reactive H atoms and an OH number of more than 700 mg KOH/g, in the presence of (e) blowing agents, (f) catalysts, and optionally (g) other additives etc. An Independent claim is also included for PUR foam containing the above components, in which the amounts of (c) and (d) (based on the weight of components (b)-(g)) are 0.5-10 and 0.5-6 wt.% respectively, preferably with a mol. ratio of (c):(d) = 10-0.3, especially 3.0-0.3.

公开(公告)号：DE19736976A1

公开(公告)日：1999-03-04

申请号：DE19736976

申请日：1997-08-25

Applicant: BASF AG

Inventor： WETTERLING MONIKA ,  SCHUSTER MARITA ,  GUETTES BERND ,  KUHN SIMONE

IPC: B60N2/70 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G65/26 ,  C08G65/28 ,  C08G18/66 ,  C08G18/63 ,  C08G65/32 ,  C08L75/04 ,  B60R21/04 ,  B68G11/04

Abstract: Production of poly:isocyanate-polyaddition flexible foams in presence of foaming agents, flame retardants etc is by catalysed reaction of polyisocyanates with poly:ether:poly:alcohols (I) obtained by: (i) reacting an alkylene oxide, optionally in presence of a catalyst, with a substance (II) containing 2 or 3 active H atoms; (ii) adding a substance (III) containing at least 4 active H atoms and optionally also a further catalyst to the reaction mixture; and (iii) reacting with an alkylene oxide.