公开(公告)号：ES2216082T3

公开(公告)日：2004-10-16

申请号：ES97111491

申请日：1997-07-08

Applicant: BASF AG

Inventor： GUETTES BERND ,  DINSCH STEFAN ,  STEINCHEN KARL-HEINZ ,  HOEPPNER GERD ,  WAGNER KLAUS ,  LARBIG HARALD

IPC: C08G18/48 ,  C08G65/28 ,  C08G65/30

Abstract: A process for the production of flexible polyurethane foam comprises reacting: (a) optionally modified polyisocyanates with: (b) compounds with reactive hydrogens, and (c) optionally chain extenders and/or crosslinkers, in presence of: (d) blowing agents, (e) catalysts, (f) fire retardants, and optionally: (g) other additives etc. At least 10 wt% of the compounds used in this process comprises polyether-polyols obtained by base-catalysed reaction of lower alkylene oxides with hydroxy-functional starters and subjected, during or after alkylene oxides-addition and with a water content of not more than 0.1 wt.%, to distillation at temperatures above 49 degrees C.

公开(公告)号：AT266688T

公开(公告)日：2004-05-15

申请号：AT02010786

申请日：2002-05-15

Applicant: BASF AG

Inventor： ARLT ANDREAS ,  WAGNER KLAUS ,  VARENKAMP VOLKER

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/66

Abstract: Highly elastic polyurethane foams have a DIN EN ISO 2440 and DIN EN ISO 1856 (Process A) humid aged compression set (HACS) ≤ 15% and a DIN EN ISO 1856 (Process C) wet compression set (WCS) ≤ 20%. An Independent claim is also included for highly elastic polyurethane foams obtained by reacting (A) a polyisocyanate with (B) a component comprising by weight (B1) a polymerpolyol (5-75%) and (B2) a mixture (25-95%) consisting of (i) a polyetheralcohol (70-98%) of mol. wt. 3500-6500, functionality ≤ 3 and ethylene oxide (EO) content 8-20 wt.% and (ii) a polyetheralcohol (2-30%) of mol. wt. 4000-7000, functionality 4-8 and EO content 5-15 wt.%.

公开(公告)号：DK0819712T3

公开(公告)日：2004-04-13

申请号：DK97111491

申请日：1997-07-08

Applicant: BASF AG

Inventor： GUETTES BERND ,  STEINCHEN KARL-HEINZ ,  WAGNER KLAUS ,  DINSCH STEFAN ,  HOEPPNER GERD ,  LARBIG HARALD ,  LUTTER HEINZ-DIETER

IPC: C08G18/48 ,  C08G65/28 ,  C08G65/30

Abstract: A process for the production of flexible polyurethane foam comprises reacting: (a) optionally modified polyisocyanates with: (b) compounds with reactive hydrogens, and (c) optionally chain extenders and/or crosslinkers, in presence of: (d) blowing agents, (e) catalysts, (f) fire retardants, and optionally: (g) other additives etc. At least 10 wt% of the compounds used in this process comprises polyether-polyols obtained by base-catalysed reaction of lower alkylene oxides with hydroxy-functional starters and subjected, during or after alkylene oxides-addition and with a water content of not more than 0.1 wt.%, to distillation at temperatures above 49 degrees C.

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：DE10129062A1

公开(公告)日：2002-12-19

申请号：DE10129062

申请日：2001-06-15

Applicant: BASF AG

Inventor： ARLT ANDREAS ,  WAGNER KLAUS ,  VARENKAMP VOLKER

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/66 ,  C08G18/32

Abstract: Highly elastic polyurethane foams have a DIN EN ISO 2440 and DIN EN ISO 1856 (Process A) humid aged compression set (HACS) ≤ 15% and a DIN EN ISO 1856 (Process C) wet compression set (WCS) ≤ 20%. An Independent claim is also included for highly elastic polyurethane foams obtained by reacting (A) a polyisocyanate with (B) a component comprising by weight (B1) a polymerpolyol (5-75%) and (B2) a mixture (25-95%) consisting of (i) a polyetheralcohol (70-98%) of mol. wt. 3500-6500, functionality ≤ 3 and ethylene oxide (EO) content 8-20 wt.% and (ii) a polyetheralcohol (2-30%) of mol. wt. 4000-7000, functionality 4-8 and EO content 5-15 wt.%.

公开(公告)号：DE59802312D1

公开(公告)日：2002-01-17

申请号：DE59802312

申请日：1998-08-10

Applicant: BASF AG

Inventor： LUTTER DR ,  BRUCHMANN DR ,  WENZEL MARION ,  WAGNER KLAUS

IPC: C08G18/10 ,  C08G18/76

Abstract: The preparation of polyurethane soft foams involves using polyester polyols as the polyol component and compound containing silicon atoms and polyether chains. - The preparation of polyurethane (PU) soft foams comprises reacting polyisocyanates comprising isocyanate and urethane group-containing prepolymers from diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanates and polyether polyols with compounds with at least two active hydrogen atoms from polyester polyols in the presence of propellants, catalysts and additives and aids containing silicon atoms and polyether chains. SPECIFIC SUBSTANCES - The polyester polyols have a functionality of 2-4 and a mol. wt. of 1800-3600.

公开(公告)号：DE19930526A1

公开(公告)日：2001-01-04

申请号：DE19930526

申请日：1999-07-01

Applicant: BASF AG

Inventor： CHAKRABARTI SARBANANDA ,  HAEBERLE KARL ,  WAGNER KLAUS

IPC: A61F13/15 ,  A61L15/26 ,  A61L15/42 ,  C08G18/08 ,  C08G18/28 ,  C08G18/48 ,  C08G18/70 ,  C08G18/77 ,  A47L1/15 ,  C08L75/04

Abstract: A hydrophilic soft polyurethane foam prepared by reaction of at least one polyisocyanate with at least one compound having at least 2 linkages which react with isocyanates is new. The reaction is carried out in the presence of sulfonic acids having one or more OH groups and/or their salts, and/or of polyalkyleneglycol ethers initiated (sic) with monools (sic). An Independent claim is included for preparation of soft polyurethane foams as described above, at an isocyanate index value of about 85-105.

公开(公告)号：DE19735488A1

公开(公告)日：1999-02-18

申请号：DE19735488

申请日：1997-08-16

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  BRUCHMANN BERND DR ,  WENZEL MARION ,  WAGNER KLAUS

IPC: C08G18/10 ,  C08G18/76 ,  C08G18/42 ,  C08G18/61 ,  C08G18/48 ,  C08L75/04

Abstract: The preparation of polyurethane soft foams involves using polyester polyols as the polyol component and compound containing silicon atoms and polyether chains. The preparation of polyurethane (PU) soft foams comprises reacting polyisocyanates comprising isocyanate and urethane group-containing prepolymers from diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanates and polyether polyols with compounds with at least two active hydrogen atoms from polyester polyols in the presence of propellants, catalysts and additives and aids containing silicon atoms and polyether chains. SPECIFIC SUBSTANCES - The polyester polyols have a functionality of 2-4 and a mol. wt. of 1800-3600.

公开(公告)号：CA2242695A1

公开(公告)日：1999-02-16

申请号：CA2242695

申请日：1998-08-14

Applicant: BASF AG

Inventor： WENZEL MARION ,  BRUCHMANN BERND ,  LUTTER HEINZ-DIETER ,  WAGNER KLAUS

IPC: C08G18/10 ,  C08G18/76 ,  C08J9/04 ,  C08L75/06 ,  C08G18/42

Abstract: Flexible polyurethane foams are produced by reacting a) polyisocyanates with b) compounds containing at least two active hydrogen atoms in the presence of c) blowing agents d) catalysts and also e) auxiliaries and/or additives, wherein prepolymers containing isocyanate and urethane groups and derived from diphenylmethane diisocyanate and polyphenylpolymethylene polyisocyanates and polyether polyols are used as polyisocyanates a), polyester polyols are used as compounds b) containing at least two active hydrogen atoms, and compounds comprising silicon atoms and polyether chains are used as auxiliaries and/or additives e).