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公开(公告)号：DE59901078D1
公开(公告)日：2002-05-02
申请号：DE59901078
申请日：1999-05-10
Applicant: BASF AG
Inventor： REICHELT MICHAEL , ROTERMUND UDO , HEMPEL RENATE , FALKE PETER , VON MALOTKI PETER , SEIFERT HOLGER
Abstract: Prepolymers which contain isocyanate groups, have an NCO content of at least 30.0% by weight and can be prepared by reacting an isocyanate mixture consisting predominantly of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates and having a proportion of two-ring isomers of not more than 74% by weight with at least 4-functional polyols or a mixture of polyols having a mean functionality of at least 4, where the polyols or polyol mixtures have a hydroxyl number of from 200 to 1650 mg KOH/g and a number average molecular weight of less than 1100 g/mol. The present invention also provides a process for preparing these prepolymers containing isocyanate groups, provides for their use for producing polyurethanes and provides a process for producing polyurethanes by reacting at least one novel prepolymer containing isocyanate groups, if desired in admixture with further organic and/or modified organic isocyanates (a), with compounds having at least two reactive hydrogen atoms (b) in the presence of, if desired, blowing agents (c), catalysts (d) and, if desired, further auxiliaries and/or additives (e).
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公开(公告)号：DE10019377A1
公开(公告)日：2001-10-25
申请号：DE10019377
申请日：2000-04-19
Applicant: BASF AG
Inventor： FALKE PETER , HENDREICH REGINA , STUERMER RAINER , FRIEDRICH THOMAS
Abstract: Process (I) for immobilizing a biologically active substance comprising contacting a foamed polymeric material with the substance, is new. Independent claims are also included for the following: (1) products (II) obtainable by process (I); and (2) chiral syntheses performed using (II) at 5-80 deg C.
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公开(公告)号：DE19811471A1
公开(公告)日：1999-09-23
申请号：DE19811471
申请日：1998-03-17
Applicant: BASF AG
Inventor： FALKE PETER , HENDREICH REGINA , TISCHER GERLINDE , BERGER ELKE , WAGNER KLAUS
IPC: C08G18/08 , C08G18/40 , C08G18/66 , C08G18/64 , C08G18/38 , C08G18/48 , C08G18/32 , C08L75/00 , C08J9/14
Abstract: A process for the production of stable dispersions of ureas in polyols by adding NH-functional compounds (A) to polyols and reacting with isocyanates, in which compounds (A) are primary and/or secondary amines, alkanolamines and/or hydrazine derivatives and/or hydrazide derivatives together with monofunctional aliphatic amine(s). Independent claims are included for: (a) stable dispersions of ureas in polyols, obtained by this process; and (b) a process for the production of polyurethanes by reacting isocyanates with these polyurea dispersions in presence of blowing agents, catalysts and optionally fire retardants and other additives.
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公开(公告)号：MX9801233A
公开(公告)日：1998-08-30
申请号：MX9801233
申请日：1998-02-13
Applicant: BASF AG
Inventor： FALKE PETER , HENDREICH REGINA , FRITZ RALF , ROTERMUND INGE
Abstract: Un proceso para preparar un componente de poliol homogéneo que es estable ak la separacion y que consiste de por lo menos un compuesto de peso molecular relativamente elevado que tiene por lo menos dos átomos de hidrogeno reactivos y, alargadores de cadena y/o reticuladores de bajo peso molecular y, si se desea, de agentes hinchadores, catalizadores y otros auxiliares, y/o aditivos, que comprende la adicion a este componente de por lo menos una amina y por lo menos un isocianato orgánico y/o orgánico modificador; la invencion proporciona asimismo el componente de poliol correspondiente que es estable a la separacion. El uso de este componente de poliol para preparar PUR, en particular PUR compacto o espumado, se describe asimismo.
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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
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.
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Patent Agency Ranking
公开(公告)号：DE19924802B4
公开(公告)日：2008-02-28
申请号：DE19924802
申请日：1999-05-29
Applicant: BASF AG
Inventor： FALKE PETER , ROTERMUND INGE , SCHMUTZER KLAUS , SCHMALER KIRSTEN
Abstract: Sound-damping and energy-absorbing flexible PUR foams are produced 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).
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公开(公告)号：DE102007020976A1
公开(公告)日：2007-11-22
申请号：DE102007020976
申请日：2007-05-04
Applicant: BASF AG
Inventor： DINSCH STEFAN , FALKE PETER , WINKLER JUERGEN , ZIELER RALF
Abstract: Method for processing polyetheralcohol obtained by the catalytic addition of alkylene oxide to active hydrogen containing starting material in the presence of a basic catalyst, comprises: (a) providing a basic catalyst under stoichiometric quantity of an acid to alkaline polyetheralcohol; (b) adding urea to the mixture (at least a quantity sufficient for neutralizing the basic catalyst); (c) removing the salts obtained in (a) and (b), and the excess urea; and (d) separating water and other easily volatile materials. Independent claims are included for: (1) polyetheralcohol obtained by the process; and (2) a process for the preparation of polyurethane comprising reacting a polyisocyanate with a compound containing at least two isocyanate reactive hydrogen atoms, preferably the polyether alcohol.
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公开(公告)号：DE19816526B4
公开(公告)日：2006-12-21
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 , C07C217/08 , C08G18/50 , C08G18/66 , C08K5/16 , C09K15/20 , C10M133/04 , C10M133/08 , C10M133/14 , C10M149/12
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公开(公告)号：DE19519679B4
公开(公告)日：2006-04-06
申请号：DE19519679
申请日：1995-05-30
Applicant: BASF AG
Inventor： FALKE PETER , KNORR GOTTFRIED , ROTERMUND INGE , GUETTES BERND
IPC: C08L75/04 , C08G18/16 , C08G18/22 , C08G18/40 , C08G18/48 , C08G18/65 , C08J9/00 , C08J9/14 , C08K3/32 , E04B1/62
Abstract: Prepn. of rigid polyurethane foam with reduced after-expansion and decreased mould release times comprises reacting (a) organic and/or modified organic polyisocyanates with (b) high molecular cpd(s). contg. at least 2 reactive H atoms and opt. (c) low molecular chain extender and/or crosslinker in the presence of (d) blowing agent, (e) catalyst, (f) alkali metal salt (I) and opt. (g) other ancillaries and/or additives. (I) is dialkali H phosphate (IA) with an alkali content of 50-2500 ppm w.r.t. the amt. of components (b)-(g). Also claimed is the obtd. foam.
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公开(公告)号：AU2002351961A1
公开(公告)日：2003-05-26
申请号：AU2002351961
申请日：2002-11-12
Applicant: BASF AG
Inventor： SCHLEGEL KARL , ROTERMUND UDO , FALKE PETER , VOELKEL RUDIGER , HEMPEL RENATE
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