公开(公告)号：DE19924804C2

公开(公告)日：2003-09-25

申请号：DE19924804

申请日：1999-05-29

Applicant: BASF AG

Inventor： ZASCHKE BERND ,  SCHMALER KIRSTEN ,  FALKE PETER

IPC: C08G18/48 ,  C08G18/72 ,  C08L75/08

Abstract: In a process for producing sound-absorbing PUR foams having an adhesive surface by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds (c) bearing hydrogen atoms which are reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if desired, further auxiliaries and additives (f), the polyetherol mixture (b) comprisesb1) at least one bifunctional to eight-functional polyetherol based on ethylene oxide and propylene oxide and having an OH number of from 20 to 80 mg KOH/g and a proportion of primary OH groups of >50%,b2) at least one polyetherol based on ethylene oxide and propylene oxide and/or butylene oxide and a bifunctional to eight-functional initiator and having an OH number of from 20 to 80 mg KOH/g, where the proportion of ethylene oxide in the polyetherol is >30% by weight, in amounts of from 10 to 50 parts by weight, andb3) at least one polyetherol based on propylene oxide and/or butylene oxide and, if desired, ethylene oxide and a bifunctional to eight-functional initiator and having an OH number of from 30 to 400 mg KOH/g, where the proportion of ethylene oxide in the polyetherol is

公开(公告)号：CA2227156A1

公开(公告)日：1998-08-17

申请号：CA2227156

申请日：1998-02-16

Applicant: BASF AG

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

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/66 ,  C08G18/28

Abstract: A homogeneous, demixing-stable polyol component comprising at least two relatively high molecular weight compounds containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers and also, if desired, blowing agents, catalysts and further auxiliaries and/or additives is prepared by adding at least one amine and at least one organic and/or modified organic isocyanate to this component. This polyol component is useful for producing polyurethanes, in particular compact and foamed polyurethanes.

公开(公告)号：ES2268389T3

公开(公告)日：2007-03-16

申请号：ES03744354

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: Un poliol de injerto que tiene una distribución de tamaño de partícula bimodal y un contenido total de sólidos desde 5 hasta 63% en peso, que contiene partículas pequeñas que tienen un diámetro de partícula desde 0.05 hasta 0.7 µm y partículas grandes que tienen un diámetro de partícula de 0.4 hasta 5.0 µm, los picos de las partículas grandes y pequeñas medidos por el método de difracción de Fraunhofer en combinación con la dispersión diferencial de intensidad de polarización no se traslapan, y un contenido total de sólidos que tiene los tamaños de partícula definidos que constan de una fracción de volumen desde 5 hasta 45% de partículas pequeñas y un volumen de fracción desde 95 hasta 55% de partículas grandes, esas fracciones de volumen que suman hasta 100%.

公开(公告)号：DE50304469D1

公开(公告)日：2006-09-14

申请号：DE50304469

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：AT335030T

公开(公告)日：2006-08-15

申请号：AT03744354

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.