公开(公告)号：DE19742011A1

公开(公告)日：1999-03-25

申请号：DE19742011

申请日：1997-09-24

Applicant: BASF AG

Inventor： ROTERMUND UDO DR ,  BIEDERMANN ANJA DR ,  HEMPEL RENATE ,  WIEGMANN WERNER ,  HEINZ MARION

IPC: C08J3/02 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08G101/00 ,  C08J9/12 ,  C08J9/14 ,  C08L75/04 ,  C08L75/08 ,  C08G65/38

Abstract: Emulsions containing polyether alcohols are used in the production of hard foams based on isocyanates to improve the temperature stability of the foams. Storage-stable halogen-free emulsions used in the production of hard foams based on isocyanates contain: (a) compounds containing hydrogen atoms reactive towards isocyanate groups; (b) water; (c) halogen-free propellants; and optionally (d) usual auxiliary aids and/or additives. (a) is used in an amount of 0.2-80 wt.% and has a functionality of more than 1.5, and an OH number of 10-100 mg KOH/g. (c) consists of 3-10 C hydrocarbons. Independent claims are also included for: (1) the production of the hard foams described; (2) the foams, and (3) the use of the polyether alcohols described.

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：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：DE19648724A1

公开(公告)日：1998-05-28

申请号：DE19648724

申请日：1996-11-25

Applicant: BASF AG

Inventor： GUETTES BERND ,  BIEDERMANN ANJA ,  HEMPEL RENATE ,  KNORR GOTTFRIED DR ,  ROTERMUND UDO DR

IPC: C07G1/00 ,  C08G18/64 ,  C08H8/00 ,  C08L71/02 ,  C08L97/00 ,  C08G18/48 ,  C08G18/52 ,  C08G18/60 ,  C08G18/56 ,  C08G18/42 ,  C08L75/04

Abstract: Lignin containing polyhydroxy compounds are claimed which are prepared by reacting a solution, comprising lignin of salt content, based on Na and K ions, of 5000-15000 ppm, a polyalkylene glycol(s) from polyethylene glycols and/or polypropylene glycols giving a total OH functionality of at least 2 and optionally an OH, NH or NH2 functional compound(s) of H functionality at least 2, with an alkylene oxide(s). Also claimed are the preparation of the above compounds, the preparation of compact or flexible polyurethanes by reacting high mol wt. compounds with at least two reactive H atoms, preferably polyhydroxy compounds, and lignin containing polyhydroxy compounds with optionally modified organic polyisocyanates, optionally in the presence of chain extenders and/or crosslinkers, propellants, catalysts and aids and the obtained compact or cellular polyurethanes. Preferably the polyalkylene glycols have a mol. wt. of 400-4000, preferably 600-1500 and a polypropylene glycol content of 0-50, especially 0-10%. The lignin has a salt content of 5000-12000 ppm. The functional compound is an at least diol, sugar alcohol, saccharide, amino alcohol or aliphatic or aromatic amine. The high mol wt. compounds have a functionality of 2-8 and an OH number of 25-500, preferably from polythioether polyols, polyester amides, OH containing polyacetals and polycarbonates, polyester polyols, polyether polyols and/or polymer-modified polyether polyols. The propellant is water and/or 3-7C alkanes.

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).

公开(公告)号：DE19548770A1

公开(公告)日：1997-06-26

申请号：DE19548770

申请日：1995-12-23

Applicant: BASF AG

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

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76 ,  C08G18/78 ,  C08G18/38 ,  C08G18/10 ,  C08G18/40 ,  C08G18/65 ,  C08L75/00 ,  B29C45/03 ,  B29C67/20

Abstract: The invention relates to a microcellular PU elastomer with improved dynamic-mechanical characteristics, based on an isocyanate component consisting essentially of 4,4'-MDI and other standard components. The elastomer in question has a physical-chemical structure characterised by a one- or two-peak signal next to the low-molecular main signal for an (apparent) molar mass of greater than 250,000 g/mol as measured by gel-permeation chromatography from a solution of the microcellular PU elastomer produced at 90 DEG C in N,N-dimethylformamide with 1 % di-n-butylamine, against polymethylmethacrylate (PMMA) as the standard, the signal being reduced or eliminated following addition of lithium chloride to this solution. The elastomer has a urea content of 14-18 wt %. Also disclosed are a process for producing such a microcellular PU elastomer with improved dynamic-mechanical characteristics and the use of said elastomer to produce damping elements.

公开(公告)号：DE19526979A1

公开(公告)日：1997-01-30

申请号：DE19526979

申请日：1995-07-25

Applicant: BASF AG

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

IPC: C08J9/02 ,  C08G18/00 ,  C08G18/08 ,  C08G18/28 ,  C08G18/65 ,  C08J9/14 ,  C08G18/40 ,  C08L75/00 ,  C08K5/01 ,  C08K5/05 ,  F16L59/00 ,  E04B1/74

Abstract: The novel feature in rigid foam prodn. from polyisocyanates, high mol.wt. cpds. with 2 or more reactive H atoms and opt. also chain extenders and/or crosslinkers is that the blowing agent is a mixt. of (i) a low boiling 3-7C hydrocarbon; and (ii) a low mol., monofunctional, primary or secondary OH gp.-contg. 1-4C alcohol. The (i)+(ii) mixt. is also claimed per se and can be used in combination with CO2 produced in situ from water and the isocyanate.

公开(公告)号：ES2277148T3

公开(公告)日：2007-07-01

申请号：ES03797284

申请日：2003-09-08

Applicant: BASF AG

Inventor： ROTERMUND UDO ,  HEMPEL RENATE ,  HESSE MICHAEL ,  RUDLOFF JAN ,  DESSEIX MARYLINE

IPC: C04B38/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/48

Abstract: Procedimiento para la obtención de una espuma, constituida al menos por un 70 % en masa de carbono, mediante pirolisis de espumas de material sintético, caracterizado porque las espumas de material sintético, empleadas, contiene, al menos, un 30 % en masa de un material polímero con un contenido en nitrógeno por encima del 6 % en masa y tienen una porosidad comprendida entre el 35 % y el 99, 5 % así como una proporción de células abiertas mayor que el 1 %, que presentan productos inorgánicos incorporados y/o depositados sobre la superficie en la espuma de material sintético, elegidos del grupo formado por el cloruro de cinc, el carbonato de calcio, el polifosfato de amonio, el grafito expandido y los polvos metálicos y/o tratadas durante y/o después de la pirolisis con vapor de agua y/o con dióxido de carbono a temperaturas por encima de 400ºC.

公开(公告)号：DE59711565D1

公开(公告)日：2004-06-03

申请号：DE59711565

申请日：1997-09-23

Applicant: BASF AG

Inventor： ROTERMUND DR ,  HEMPEL RENATE ,  SEIFERT DR ,  WIEGMANN WERNER

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

Abstract: A process for the production of rigid polyurethane foam with improved thermodimensional stability and reduced thermal conductivity comprises reacting (a) polyisocyanates with (b) compounds with isocyanate-reactive hydrogen atoms in presence of (c) water and optionally (d) physical blowing agents and (e) catalysts and other additives etc. 60-100 wt% of component (b) consists of a polyol mixture containing (b1) a polyol obtained by addition of ethylene oxide (EO) and/or propylene oxide (PO) to a hexitol or hexitol mixture and (b2) a polyol obtained by addition of EO and/or PO to one or more aromatic amines, such that the total hexitol content and the total amine content of the polyol mixture is 15-30 wt% and 1-10 wt% respectively.