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公开(公告)号：BRPI0408143A
公开(公告)日：2006-03-01
申请号：BRPI0408143
申请日：2004-02-24
Applicant: BASF AG
Inventor： KREITSCHMANN MIRKO , ROTERMUND UDO , FRITSCH PETER
Abstract: A method for the production of polyesterols with reduced reactivity (I) by polycondensation of dicarboxylic acids or their derivatives with H-functional substances in presence of tin catalysts, involves bringing (I) into contact with oxygen after the end of the esterification reaction. An independent claim is also included for polyesterols obtained by this method.
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公开(公告)号：DE10259267A1
公开(公告)日：2004-07-01
申请号：DE10259267
申请日：2002-12-17
Applicant: BASF AG
Inventor： HEINZ MARION , ROTERMUND UDO , HUNTEMANN PETER , SCHILLING UDO
IPC: C08G18/08 , C08G18/48 , C08G18/66 , C08G18/76 , C08K7/28 , C08G18/10 , C08G18/16 , C08G71/04 , C08L75/08
Abstract: Isocyanate adducts (I) made by reacting polyisocyanate(s) with compounds containing at least 2 NCO-reactive hydrogens, showing a crystallinity of less than 10 J/g by DSC, and an aromatics content of less than 31 wt.%, given as carbon atoms in aromatic rings. An Independent claim is also included for a method for the production of (I) by reacting (a) at least difunctional isocyanates with (b) compound(s) with at least 2 NCO-reactive H atoms in presence of (c) catalysts, in which (b) comprise (bi) polyether-polyol(s) with a functionality of more than 2.5 and a mol. wt. of more than 300 (preferably 300-1000) and (bii) polyol(s) with a functionality of 1.7-3 and a mol. wt. of more than 1000, and the reaction is carried out with an isocyanate index of less than 200.
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公开(公告)号：DE10243240A1
公开(公告)日：2004-03-25
申请号：DE10243240
申请日：2002-09-17
Applicant: BASF AG
Inventor： ROTERMUND UDO , HEMPEL RENATE , HESSE MICHAEL , RUDLOFF JAN , DESSEIX MARYLINE
Abstract: A foam (I) comprises at least 70 wt.% of carbon with an average cell size of over 20 microns, a porosity of 35-99.5% , over 90% open cells, an internal surface area of over 50 m2/g with cell crosspieces that have a triangular cross-section with inwardly curved sides and pores in the cell framework material of 0.2-50 nm in size and a volume of 0.01-0.8 cm3/g. Independent claims are included for: (1) a powder material (II) prepared by comminution of the foam (I) and; (2) a process for the production of the foam (I) by pyrolysis of a polymer foam, comprising at least 30 wt.% of a polymer material having a nitrogen content of greater than 6 wt.%, porosity of 35-99.5%, open cell content of less than 1% and inorganic materials processed into the foam or applied onto the surface whereby during and/or after pyrolysis the foam treated with water vapor, carbon dioxide and/or oxygen at over 400 degreesC.
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公开(公告)号：DE10156129A1
公开(公告)日：2003-05-28
申请号：DE10156129
申请日：2001-11-16
Applicant: BASF AG
Inventor： ROTERMUND UDO , HEMPEL RENATE , REICHELT MICHAEL , KUDOKE CAROLIN , SEITZ CHRISTIAN
Abstract: Flame-retardant hard foam consisting of isocyanate adducts with a nitrogen content \> 6 wt.%, an ether oxygen content of 0.1-10 wt.% and an acid number of 1.5 and an E2/E3 ratio \> 0.05. Flame-retardant hard foam consisting of isocyanate adducts with a nitrogen content \> 6 wt.%, an ether oxygen content of 0.1-10 wt.% and an acid number of 1.5 and an E2/E3 ratio \> 0.05. E1 = extinction of the isocyanurate band at 1410 cm ; E2 = extinction of the imide band at 715-720 cm ; and E3 = extinction of the aromatic band at 1600 cm An Independent claim is also included for the production of flame-retardant hard foams by reacting optionally modified organic polyisocyanates with compounds (I) which contain isocyanate-reactive hydrogen atoms in the presence of water and/or other propellants, catalysts and optionally other additives. The compounds (I) comprise 1-99 wt.% of a polyether alcohol with a functionality of \- 1 and a hydroxyl number of 10-500 mg KOH/g. The reaction is performed in the presence of 0.1-25 wt.% of a carboxylic anhydride.
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公开(公告)号：DE10145458A1
公开(公告)日：2003-04-03
申请号：DE10145458
申请日：2001-09-14
Applicant: BASF AG
Inventor： FALKE PETER , SEITZ CHRISTIAN , MALOTKI PETER VON , ROTERMUND UDO
Abstract: Rigid polyurethane foam is produced from mixtures of (b1) polyfunctional polyether-ols with OH numbers of 40-800 (including at least one with OH no. above 150) and more than 30 wt% ethylene oxide based on total alkylene oxide and (b2) polyether-ols with OH nos. above 40 based mainly on propylene- and/or butylene oxide, using PIR catalysts and an index of 80-500. A method for the production of rigid polyurethane foam with urethane and mainly isocyanurate groups by reacting (a) optionally modified polyisocyanates with (b) a polyol mixture and optionally (c) other compounds with isocyanate-reactive hydrogen atoms, in presence of (d) water, (e) catalysts, (f) fire retardants, (g) blowing agents and optionally (f) other additives etc. The polyol mixture (b) comprises (b1) di- to octa-functional polyether-ol(s) based on ethylene oxide (EO) and optionally propylene oxide (PO) and/or butylene oxide (BO), with an EO content of more than 30 wt% based on total alkylene oxide and an OH number of 40-800 mg KOH/g (including at least one polyether-ol (b1.1) with an OH number of more than 150), and (b2) polyether-ol(s) with an OH number of more than 40, based on PO and/or BO and optionally EO, and the foam is produced with a characteristic index of 80-500 in presence of PIR catalysts.. An Independent claim is also included for rigid polyurethane foam as above obtained by this method.
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Patent Agency Ranking
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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87.发明专利
公开(公告)号：AU1818602A
公开(公告)日：2002-04-02
申请号：AU1818602
申请日：2001-09-19
Applicant: BASF AG
Inventor： REICHELT MICHAEL , ROTERMUND UDO , BOHME PETER
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公开(公告)号：AU6743201A
公开(公告)日：2001-11-20
申请号：AU6743201
申请日：2001-05-10
Applicant: BASF AG
Inventor： BOHME PETER , PCOLINSKI MICHAEL , ROTERMUND UDO , HABICHER WOLF-DIETER , ZIEMER ANTJE
Abstract: The invention relates to high-functionality polyether polyols of the general formula where each R' 1 is an unsubstituted or substituted aliphatic or aromatic radical and each R' 2 is an unsubstituted or substituted aliphatic or aromatic radical, H, OH, polyalkyl ether chain or halogen, each X is a polyalkyl ether chain or H, where at least one X is a polyalkyl ether chain, and m is an integer from 0 to 20, where Xm is H when m is 0, and n is an integer from 4 to 12, to processes for preparing such high-functionality polyether polyols and also to the use thereof for preparing polyurethanes and nonionic surfactants.
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公开(公告)号：DE19962274A1
公开(公告)日：2001-06-28
申请号：DE19962274
申请日：1999-12-23
Applicant: BASF AG
Inventor： HEMPEL RENATE , ROTERMUND UDO , WIEGMANN WERNER , DINSCH STEFAN , WINKLER JUERGEN
Abstract: A process for production of rigid polyurethane foam by reacting, in presence of water,optionally: (a) modified polyisocyanates; (b) polyols; and optionally (c) other reactive-hydrogen compounds There are optional physical blowing agents and other additives. The polyols are a mixture of alkoxylation products of: (i) alkanes with terminal trimethylol groups; and (ii) pentaerythritol. An Independent claim is also included for a polyol mixture (a) as described above.
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公开(公告)号：ES2137028T3
公开(公告)日：1999-12-01
申请号：ES96943968
申请日：1996-12-16
Applicant: BASF AG
Inventor： KRECH RUDIGER , ROTERMUND UDO , BOLLMANN HEINZ , HEMPEL RENATE , SCHOLZ WOLFGANG , GENZ MANFRED
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.
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