公开(公告)号：DE10342979A1

公开(公告)日：2005-04-14

申请号：DE10342979

申请日：2003-09-17

Applicant: BASF AG

Inventor： SCHNORPFEIL CHRISTOPH ,  ROTERMUND UDO ,  MUELLER-HAGEN GERD ,  RUPPEL RAIMUND ,  FUHRMANN HANS ,  OEHME GUENTHER

IPC: C08G18/48 ,  C08G65/10 ,  C08G65/12

Abstract: A method (M1) for the stereo- and regio-selective polymerisation of racemic alkoxides in presence of a polyol activated with a bimetallic mu - oxoalkoxide to give polyether-polyols with an isotactic triad content of more than 25% and a regio-irregularity of less than 50%, involves carrying out the polymerisation in presence of a tert. amine. Independent claims are also included for (1) a method (M2) for the production of polyols activated with mu -oxo-alkoxides by reacting a trialkoxyaluminum compound and a magnesium salt with the polyol in a one-pot reaction without isolating the intermediate mu -oxoalkoxide (2) a method (M3) for the production of such activated polyols by reacting a trialkylaluminum compound with a Mg salt and then reacting the product with the polyol.

公开(公告)号：DE10237914A1

公开(公告)日：2004-02-26

申请号：DE10237914

申请日：2002-08-14

Applicant: BASF AG

Inventor： DINSCH STEFAN ,  HEINZ MARION ,  WINKLER JUERGEN ,  ROTERMUND UDO ,  BIEDERMANN ANJA ,  KAMPF GUNNAR

IPC: C08G18/48 ,  C08G65/26

Abstract: Process for preparation of polyetherols based on oligo- and/or polysaccharides as starter substances by catalyzed addition of alkylene oxides, where at least one solution or melt of costarter is used, the starter substance is taken up, and the starter mixture is alkoxylated in the melt is new. An Independent claim is included for a polyetherol based on oligo- or polysaccharide obtained as above.

公开(公告)号：DE19816526A1

公开(公告)日：1999-10-21

申请号：DE19816526

申请日：1998-04-15

Applicant: BASF AG

Inventor： DINSCH STEFAN ,  ROTERMUND UDO ,  FALKE PETER ,  HEMPEL RENATE ,  SCHROETER HORST

IPC: C07B63/04 ,  C08G18/50 ,  C08G18/66 ,  C09K15/20 ,  C10M133/08 ,  C10M133/14 ,  C10M149/12 ,  C07C217/08 ,  C08K5/16 ,  C10M133/04

Abstract: Alkoxylated amines are used to stabilize fluid or solid compounds against aging.

公开(公告)号：DE59602971D1

公开(公告)日：1999-10-07

申请号：DE59602971

申请日：1996-12-16

Applicant: BASF AG

Inventor： KRECH RUEDIGER ,  ROTERMUND UDO ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  SCHOLZ WOLFGANG ,  GENZ MANFRED

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76

Abstract: PCT No. PCT/EP96/05640 Sec. 371 Date Oct. 7, 1998 Sec. 102(e) Date Oct. 7, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23535 PCT Pub. Date Jul. 3, 1997A microcellular PU elastomer having improved dynamic mechanical properties and based on an isocyanate component consisting essentially of 4,4'-MDI and further customary constituents has a physicochemical structure which, in the gel permeation chromatograph (GPC) of a solution of the microcellular polyurethane elastomer prepared at 90 DEG C. in N,N-dimethylformamide containing 1 percent of di-n-butylamine measured against polymethyl methacrylate (PMMA) as standard, displays a signal occurring in addition to low molecular weight main signal and comprising one or more peaks at an (apparent) molar mass of greater than 250,000 g/mol which becomes smaller or disappears on addition of lithium chloride to this solution, and a urea content of from 14 to 18% by weight. A process is also provided for preparing such a microcellular PU elastomer having improved dynamic mechanical properties. The microcellular PU elastomers can be used for producing damping elements.

公开(公告)号：CA2245291A1

公开(公告)日：1999-03-24

申请号：CA2245291

申请日：1998-09-23

Applicant: BASF AG

Inventor： SEIFERT HOLGER ,  HEMPEL RENATE ,  ROTERMUND UDO ,  SCHMIADE WERNER

IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/67 ,  C08G101/00 ,  C08J9/14

Abstract: Thermally stable rigid foams based on isocyanate can be produced by reacting a) polyisocyanates with b) compounds containing at least two hydrogen atoms which can react with isocyanate groups, c) water, in the presence of d) physically acting blowing agents, in the presence or absence of e) catalysts and auxiliaries and/or additives, wherein the component b) comprises bi) at least one polyether alcohol having a functionality of at least 1.5 and a hydroxyl number of from 10 to 100 mg KOH/g in an amount of from 0.2 to 80% by mass, based on b), and bii)at least one polyester alcohol in an amount of from 5 to 90% by mass, based on b), the water c) is present in an amount of at most 2% by mass, based on the sum of the components b) to e), and the component d) used comprises hydrocarbons and/or fluorine-containing hydrocarbons in an amount of from 5 to 30% by mass, based on the sum of the components b) to e).

公开(公告)号：CA2245009A1

公开(公告)日：1999-03-24

申请号：CA2245009

申请日：1998-09-23

Applicant: BASF AG

Inventor： WIEGMANN WERNER ,  ROTERMUND UDO ,  REICHELT MICHAEL ,  BIEDERMANN ANJA ,  HEINZ MARION

IPC: C08J9/02 ,  C08G18/28 ,  C08G18/48 ,  C08G18/66 ,  C08G101/00 ,  C08J9/14 ,  C08G18/68

Abstract: In a process for producing open-celled rigid foams by reacting a) polyisocyanates with b) compounds containing hydrogen atoms which are reactive toward isocyanates, in the presence of c) water, d) if desired, organic compounds acting as physical blowing agents, e) catalysts, auxiliaries and/or additives, the compounds containing reactive hydrogen atoms used are substances having the structure I: where m is 0 - 15 n is 0 - 1 o is 0 - 15 p is 0 - 1 q is 0 - 15 r is 0 - 1 s is 0 - 15 t is 0 - 1 u is 0 - 10 v is 0 - 15 x is 1 - 5 y is 1 - 4 or mixtures of 1 - 3 where r + n ~ 0 z is 0 - 3 z i is 0.1 -3 R1 is an aliphatic structure without OH groups based on the structure of polyhydric alcohols, preferably ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol and dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, 1,3-butanediol, trimethylolpropane, trimethylolethane, glycerol, pentaerythritol, where these substances can also be used in the esterification as any mixture among one another and R1 can therefore also be a mixture of the corresponding structures, R2 is the radical of a polycarboxylic acid without COOH groups, eg. adipic acid, terephthalic acid, o-phthalic acid, R3 is an alcohol radical like R1.

公开(公告)号：HU9800529A2

公开(公告)日：1998-12-28

申请号：HU9800529

申请日：1998-03-10

Applicant: BASF AG

Inventor： BAUM EVA ,  KNORR GOTTFRIED ,  ROTERMUND UDO ,  SEIFERT HOLGER ,  WIEGMANN WERNER

IPC: C08J9/08 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08J9/14 ,  C08J9/00

Abstract: The production of rigid polyurethane (PUR) foam with a low bulk density (I) comprises reacting (a) polyisocyanates and/or modified polyisocyanates with (b) high-mol. wt. compound(s) with at least two reactive hydrogens and optionally (c) low-mol. wt. chain-extenders and/or crosslinkers in presence of (d) blowing agents, (e) catalysts and optionally (f) other additives etc. Component (d) consists of a mixture of (d-1) cyclopentane, (d-2) at least one 3-4C alkane and/or alkene which forms a homogeneous mixture with cyclopentane and (d-3) the carbon dioxide from the reaction of water and isocyanate. Component (b) comprises aromatic nitrogen-containing polyethers.

公开(公告)号：MX9707293A

公开(公告)日：1998-08-30

申请号：MX9707293

申请日：1997-09-24

Applicant: BASF AG

Inventor： ROTERMUND UDO ,  HEMPEL RENATE ,  SEIFERT HOLGER ,  WIEGMANN WERNER

IPC: C08J9/12 ,  C08G18/06 ,  C08G18/48 ,  C08G18/50 ,  C08G18/32

Abstract: En un proceso para producir espuma de poliuretano rígidas, que tienen resistencia mejorada a la distorsion por calor y conductividad térmica reducida, mediante la reaccion de a) poliisocianatos con b)compuestos que contienen átomos de hidrogeno reactivos con disposicion con isocianatos, en la presencia de c) agua, y, si desea, d) agentes espumantes que físicamente y e) catalizadores y auxiliares y/o aditivos conocidos, los compuestos b) que contienen átomos de hidrogeno reactivos a isocianatos, son una mezcla de poliol, que comprende b1) un poliol que se puede preparar mediante la adicion de oxido de etileno y/o oxido de propileno con un hexitol o una mezcla de hexitol, con el contenido de hexitol total de la mezcla de poliol siendo desde 15 hasta 30% en peso, en base a la mezcla de poliol, y b2) un poliol que se puede preparar mediante la adicion de oxido de etileno y/o oxido de etileno y/o oxido de propileno en una o más aminas aromáticas, con el contenido de amina total de la mezcla de poliol, siendo desde 1 hasta 10% en peso, en base a la mezcla de poliol, y la cantidad de la mezcla de poliol en el componente b) es desde 60 hasta 100 partes en masa, por 100 partes en masa del componente b).

公开(公告)号：MX9602910A

公开(公告)日：1998-04-30

申请号：MX9602910

申请日：1996-07-22

Applicant: BASF AG

Inventor： SEIFERT HOLGER ,  HEMPEL RENATE ,  KNORR GOTTFRIED ,  ROTERMUND UDO

IPC: C08G18/00 ,  C08J9/02 ,  C08G18/08 ,  C08G18/28 ,  C08G18/65 ,  C08J9/14 ,  C08G18/30

Abstract: En un proceso para producir espumas rígidas a base de isocianato, el agente hinchador usado es una mezcla de por lo menos un hidrocarburo de baja temperatura de ebullicion que tiene de 3 a 7 átomos de carbono, alcoholes monohídricos de bajo peso molecular que contienen grupos de hidroxilo primario o secundario y que tienen de 1 a 4 átomos de carbono y, si se desea, el dioxido de carbono formado de agua y el isocianato. Las espumas rígidas se pueden usar como un material de aislamiento.

公开(公告)号：CA2215150A1

公开(公告)日：1998-03-24

申请号：CA2215150

申请日：1997-09-23

Applicant: BASF AG

Inventor： SEIFERT HOLGER ,  WIEGMANN WERNER ,  ROTERMUND UDO ,  HEMPEL RENATE

IPC: C08J9/12 ,  C08G18/06 ,  C08G18/48 ,  C08G18/50 ,  C08G18/32 ,  C08J9/08 ,  C08J9/14

Abstract: In a process for producing rigid polyurethane foams having improved heat distortion resistance and reduced thermal conductivity by reacting a) polyisocyanates with b) compounds containing hydrogen atoms reactive toward isocyanates, in the presence of c) water, and, if desired, d) physically acting blowing agents and e) catalyst and known auxiliaries and/or additives, the compounds b) containing hydrogen atoms reactive toward isocyanates are a polyol mixture comprising b1) a polyol which can be prepared by addition of ethylene oxide and/or propylene oxide onto a hexitol or a hexitol mixture, with the total hexitol content of the polyol mixture being from 15 to 30 % by weight, based on the polyol mixture, and b2) a polyol which can be prepared by addition of ethylene oxide and/or propylene oxide onto one or more aromatic amines, with the total amine content of the polyol mixture being from 1 to 10 % by weight, based on the polyol mixture, and the amount of the polyol mixture in the component b) is from 60 to 100 parts by mass per 100 parts by mass of the component b).