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.

公开(公告)号：DE59800587D1

公开(公告)日：2001-05-10

申请号：DE59800587

申请日：1998-08-25

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

Abstract: Flexible foams based on polyisocyanate polyaddition products are produced by reacting polyisocyanates with compounds which are reactive toward isocyanates in the presence of catalysts, blowing agents and, if desired, flame retardants, auxiliaries and/or additives, wherein polyether polyalcohols (c) which are obtainable by addition of alkylene oxides onto substances containing active hydrogens are used as substances which are reactive toward isocyanates, where, in a first stage, at least one substance (a) containing 2 or 3 active hydrogens is reacted with at least one alkylene oxide in the presence or absence of catalysts, subsequently at least one substance (b) which contains at least four active hydrogens and, if desired, further catalyst is added to the reaction mixture from the first stage and this mixture is then reacted in a second stage with at least one alkylene oxide.

公开(公告)号：AT200298T

公开(公告)日：2001-04-15

申请号：AT98115983

申请日：1998-08-25

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

Abstract: Flexible foams based on polyisocyanate polyaddition products are produced by reacting polyisocyanates with compounds which are reactive toward isocyanates in the presence of catalysts, blowing agents and, if desired, flame retardants, auxiliaries and/or additives, wherein polyether polyalcohols (c) which are obtainable by addition of alkylene oxides onto substances containing active hydrogens are used as substances which are reactive toward isocyanates, where, in a first stage, at least one substance (a) containing 2 or 3 active hydrogens is reacted with at least one alkylene oxide in the presence or absence of catalysts, subsequently at least one substance (b) which contains at least four active hydrogens and, if desired, further catalyst is added to the reaction mixture from the first stage and this mixture is then reacted in a second stage with at least one alkylene oxide.