公开(公告)号：MX9602244A

公开(公告)日：1997-08-30

申请号：MX9602244

申请日：1996-06-07

Applicant: BASF AG

Inventor： DINSCH STEFAN ,  PRETZSCH REGINA ,  WINKLER JUERGEN ,  GUETTES BERND ,  STEINCHEN KARL-HEINZ

IPC: C08G18/48 ,  C08G18/50 ,  C08G65/26 ,  C08F120/20

Abstract: En un proceso para preparar polioles de poliéter que contienen compuestos aromáticos mediante adicion molecular de oxido de alquileno a iniciadores H-funcionales a temperatura de 70 degree C a 135 degree C y presiones de 0.1 MPa a 1.0 MPa, la alcoxilacion se lleva a cabo usando por lo menos un iniciador que comprende por lo menos 95 por ciento en peso de 2,3- y 3,4-isomeros de tolilendiamina, de 0.5 por ciento a 4 por ciento en peso de 2,4 y 2,6-isomeros de tolilendiamina y de 0.1 por ciento a 1.5 por ciento en peso de fracciones más volátiles de la produccion de tolilendiamina. Los polioles de poliéter preparados mediante este proceso para producir espumas de poliuretano rígidas.

公开(公告)号：DE19548350A1

公开(公告)日：1997-06-26

申请号：DE19548350

申请日：1995-12-22

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  KRAUS RUPERT DR ,  LARBIG HARALD DR ,  GUETTES BERND ,  SCHERZER DIETRICH DR ,  TISCHER GERLINDE

IPC: C07G1/00 ,  C08G18/64 ,  C08G65/26 ,  C08G18/42 ,  C08G18/44 ,  C08G18/48 ,  C08G18/52 ,  C08G18/56 ,  C08G18/60 ,  C08G18/63 ,  C08G65/28 ,  C08G65/32 ,  C08L75/04

Abstract: Polyhydroxyl compound (I) containing lignin is new. (I) is obtained by reacting (a1) a solution containing (a11) lignin with a salt content (measured as Na and K ion content) of

公开(公告)号：DE19528538A1

公开(公告)日：1997-02-06

申请号：DE19528538

申请日：1995-08-03

Applicant: BASF AG

Inventor： GUETTES BERND ,  SCHUSTER MARITA ,  HEINRICH HORST ,  SCHLUETER HANNELORE ,  WENZEL MARION

IPC: C08G18/42 ,  C08G63/90 ,  C09K21/14 ,  C08G18/66 ,  C08G63/16 ,  C08G63/181 ,  C08G63/20 ,  C08G63/672 ,  C08L75/04

Abstract: Redn. of the "fogging effect" in flexible polyurethane foam prodn from (a) opt. modified organic polyisocyanate, (b) high molecular cpds. with at least 2 reactive H and opt. (c) low molecular chain extenders and/or crosslinkers in presence of (d) blowing agents, catalysts, flame retardants, etc. is achieved by using as (b) specially treated polyester- or polyetherester-polyols which have been extracted with solvents after having been obtd. by polycondensation of dicarboxylic acids with polyfunctional alcohols.

公开(公告)号：DE19519680A1

公开(公告)日：1996-12-05

申请号：DE19519680

申请日：1995-05-30

Applicant: BASF AG

Inventor： GUETTES BERND ,  FALKE PETER DR ,  ROTERMUND INGE ,  KNORR GOTTFRIED DR ,  DINSCH STEFAN

IPC: C08G18/48 ,  C08G65/26 ,  C08G65/30

Abstract: The prepn. is of catalytically-active polyether-polyols (I) by base-catalysed reaction of H-functional starters (II) with alkylene oxide (III) under the usual conditions. The polymerisation of (III) is catalysed by adding a combination of base and (in)organic alkali(ne earth) salt(s) in stages and/or the catalyst is removed by special crystal formation and removal by adding acids and removing the salts before concluding the crystal formation or conversion phase. Also claimed are (I) per se.

公开(公告)号：DE4313921A1

公开(公告)日：1994-11-03

申请号：DE4313921

申请日：1993-04-28

Applicant: BASF AG

Inventor： MEYER BAERBEL ,  MUELLER-HAGEN GERD DR ,  GUETTES BERND

IPC: C08F283/00 ,  C08F283/02 ,  C08G18/10 ,  C08G18/63 ,  C08F283/01 ,  C08G18/42

公开(公告)号：DE19752037B4

公开(公告)日：2006-11-09

申请号：DE19752037

申请日：1997-11-24

Applicant: BASF AG

Inventor： GUETTES BERND ,  HINZ WERNER ,  LAUSBERG DIETRICH ,  ROTERMUND UDO

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

Abstract: Polyurethanes (PUR) are obtained by reacting (a) polyfunctional isocyanates (optionally in presence of blowing agents and normal additives etc.) with (b) special isocyanate-reactive compounds comprising polyether-alcohols with a single functionality of n \! 0.1, where n = 3-9. An Independent claim is also included for the production of rigid PUR foam by the process described above with blowing agents (c) as an obligatory component.

公开(公告)号：AT294203T

公开(公告)日：2005-05-15

申请号：AT99116469

申请日：1999-08-21

Applicant: BASF AG

Inventor： BERGER ELKE ,  TISCHER GERLINDE ,  REESE HANS-JUERGEN ,  GUETTES BERND

IPC: C08G18/40 ,  C08G18/42 ,  C08G63/16 ,  C08J11/22

公开(公告)号：DE59711326D1

公开(公告)日：2004-04-01

申请号：DE59711326

申请日：1997-07-08

Applicant: BASF AG

Inventor： GUETTES BERND ,  DINSCH STEFAN ,  STEINCHEN KARL-HEINZ ,  HOEPPNER GERD ,  WAGNER KLAUS ,  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：DE10162343A1

公开(公告)日：2003-07-10

申请号：DE10162343

申请日：2001-12-18

Applicant: BASF AG

Inventor： FALKE PETER ,  ROTERMUND UDO ,  HEINZ MARION ,  HEMPEL RENATE ,  SEITZ CHRISTIAN ,  MALOTKI PETER VON ,  BIEDERMANN ANJA ,  GUETTES BERND

IPC: C08G18/40 ,  C08J3/22 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76 ,  C08L3/02

Abstract: The production of fireproof rigid polyurethane foam by reacting polyisocyanates with polyols in presence of water and/or other blowing agents involves adding flour and/or starch in combination with acid-forming fire retardant(s) to the reaction mixture, the flour/starch being used in a pumpable form obtained by mixing with a liquid fire retardant and/or polyol. Independent claims are also included for (1) a method for the production of starch suspensions in a form which can be metered by pumping for use in fireproof rigid polyurethane foam, by mixing flour and/or starch with a liquid fire retardant and/or a polyol (2) fireproof rigid polyurethane foam obtained by this method.

公开(公告)号：DE10156014A1

公开(公告)日：2003-06-05

申请号：DE10156014

申请日：2001-11-15

Applicant: BASF AG

Inventor： GUETTES BERND ,  HARRE KATHRIN ,  KNORR GOTTFRIED ,  SCHUSTER MARITA ,  WETTERLING MONIKA

IPC: C08G18/10 ,  C08G18/40 ,  C08G18/48 ,  C08G18/66 ,  C08G65/26 ,  C07C43/13 ,  C07C41/03

Abstract: The present invention relates to a process for the production of polyether alcohols by catalytic addition of alkylene oxides to H-functional initiators using amines as catalysts, wherein the addition of the amines to the reaction mixture is effected prior to or at the commencement of the chemical addition of the alkylene oxides and also at least once during the reaction, said additional addition of the catalyst being carried out at the point of the reaction at which there is an increased occurrence of side reactions and/or when the alkylene oxides undergo a change in the polyether chain.