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公开(公告)号：PL327325A1
公开(公告)日：1998-12-07
申请号：PL32732596
申请日：1996-12-16
Applicant: BASF AG
Inventor： KRECH RUEDIGER , 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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公开(公告)号：MX9805116A
公开(公告)日：1998-10-31
申请号：MX9805116
申请日：1998-06-23
Applicant: BASF AG
Inventor： KRECH RUDIGER , ROTERMUND UDO , BOLLMANN HEINZ , HEMPEL RENATE , SCHOLZ WOLFGANG , GENZ MANFRED
Abstract: La presente invencion se refiere a un elastomero PU con mejores características mecánicas y dinámicas, a base de un componente isocianato que consiste esencialmente en 4, 4'-MDI y de otros componentes normales. El elastomero propuesto, después del templado a temperaturas de 100-120 degree C durante 8-24 horas tiene un rango de fusion entre 130 degree C como límite inferior mínimo y 230 degree C como límite superior mínimo, medido por calorimetría de rastreo diferencial (CRF) a una velocidad de calentamiento de 20 degree C/min y un contenido de urea de 14-18% en peso. También se describe un proceso para producir éste elastomero PU microcelular con mejores características mecánicas-dinámicas y el uso de los elastomeros en la produccion de elementos amortiguadores.
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公开(公告)号：TR199801201T2
公开(公告)日：1998-10-21
申请号：TR9801201
申请日：1996-12-16
Applicant: BASF AG
Inventor： KRECH RUDIGER , ROTERMUND UDO , BOLLMANN HEINZ , HEMPEL RENATE , SCHOLZ WOLFGANG , GENZ MANFRED
IPC: C08G18/08 , C08G18/40 , C08G18/76 , C08J9/36 , C08G101/00
Abstract: PCT No. PCT/EP96/05639 Sec. 371 Date Nov. 18, 1998 Sec. 102(e) Date Nov. 18, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23534 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 also further customary constituents has, after heating at from 100 to 120 DEG C. for from 8 to 24 hours, a melting range of from 130 DEG C. as the minimum lower limit to 230 DEG C. as a minimum upper limit, measured by differential scanning calorimetry (DSC) at a heating rate of 20 DEG C./min, 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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公开(公告)号：BR9610179A
公开(公告)日：1998-08-11
申请号：BR9610179
申请日：1998-03-13
Applicant: BASF AG
Inventor： BRUNS UTE , PEUKER HARTMUT , VOELKEL RUDIGER , SCHOLZ WOLFGANG , STRAUSS MICHAEL , BOLLMANN HEINZ , HELLMANN GERHARD , JESCHKE TORSTEN , GENZ MANFRED , HASELHORST WALTER
Abstract: Compact and preferably cellular polyurethane elastomers are produced by reactinga) polyhydroxyl compounds having molecular weights of from 800 to 6000 and, if desired,b) chain extenders and/or crosslinkers having molecular weights of up to 800 [lacuna]c) naphthylene 1,5-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 3,3'-dimethylbiphenyl diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or aliphatic diisocyanate having from 4 to 12 carbon atoms and/or cycloaliphatic diisocyanate having from 6 to 18 carbon atoms, where the formative components (a), (c) and, if used, (b) are preferably reacted by the prepolymer method,in the presence or absence ofd) catalysts,e) blowing agents andf) additives. Isocyanate prepolymers suitable for this purpose are also described.
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公开(公告)号：ZA9610844B
公开(公告)日：1998-06-23
申请号：ZA9610844
申请日：1996-12-23
Applicant: BASF AG
Inventor： KRECH RUEDIGER , ROTERMUND UDO , BOLLMANN HEINZ , HEMPEL RENATE , SCHOLZ WOLFGANG , GENZ MANFRED
Abstract: PCT No. PCT/EP96/05639 Sec. 371 Date Nov. 18, 1998 Sec. 102(e) Date Nov. 18, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23534 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 also further customary constituents has, after heating at from 100 to 120 DEG C. for from 8 to 24 hours, a melting range of from 130 DEG C. as the minimum lower limit to 230 DEG C. as a minimum upper limit, measured by differential scanning calorimetry (DSC) at a heating rate of 20 DEG C./min, 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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Patent Agency Ranking
公开(公告)号：ZA9610843B
公开(公告)日：1998-06-23
申请号：ZA9610843
申请日：1996-12-23
Applicant: BASF AG
Inventor： KRECH RUEDIGER , 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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公开(公告)号：TR9800465T1
公开(公告)日：1998-05-21
申请号：TR9800465
申请日：1996-09-09
Applicant: BASF AG
Inventor： GENZ MANFRED , HASELHORST WALTER , JESCHKE TORSTEN , BRUNS UTE , BOLLMANN HEINZ , STRAUSS MICHAEL , SCHOLZ WOLFGANG , VOELKEL RUEDIGER , PEUKER HARTMUT , HELLMANN GERHARD
CPC classification number: C08G18/7678 , C08G18/10 , C08G18/721 , C08G2101/0066 , C08G2350/00 , C08G18/7657 , C08G18/32
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公开(公告)号：ZA9607731B
公开(公告)日：1998-03-13
申请号：ZA9607731
申请日：1996-09-13
Applicant: BASF AG
Inventor： GENZ MANFRED , HASELHORST WALTER , JESCHKE TORSTEN , BRUNS UTE , BOLLMANN HEINZ , STRAUSS MICHAEL , SCHOLZ WOLFGANG , VOELKEL RUEDIGER , PEUKER HARTMUT , HELLMANN GERHARD
CPC classification number: C08G18/7678 , C08G18/10 , C08G18/721 , C08G2101/0066 , C08G2350/00 , C08G18/7657 , C08G18/32
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公开(公告)号：AU3439097A
公开(公告)日：1998-02-09
申请号：AU3439097
申请日：1997-06-30
Applicant: BASF AG
Inventor： GENZ MANFRED , HASELHORST WALTER , JESCHKE TORSTEN , BRUNS UTE , BOLLMANN HEINZ , STRAUSS MICHAEL , SCHOLZ WOLFGANG , VOELKEL RUDIGER , PEUKER HARTMUT , HELLMANN GERHARD
Abstract: Compact and preferably cellular polyurethane elastomers are prepared by reactinga) relatively high molecular weight polyhydroxyl compounds and if desired,b) low molecular weight chain extenders and/or crosslinkers withc) phenylene 1,4-diisocyanate (p-PDI) and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 3,3'-dimethylbiphenyl diisocyanate, 1,2-diphenylethane diisocyanate and/or aliphatic diisocyanate, having from 4 to 12 carbon atoms and/or cycloaliphatic diisocyanate having from 6 to 18 carbon atoms, where the formative components (a), (c) and, if used, (b) are advantageously reacted by the prepolymer method,in the presence or absence ofd) catalysts,e) blowing agents andf) additives.Isocyanate prepolymers suitable for this purpose are described.
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公开(公告)号：CA2240464A1
公开(公告)日：1997-07-03
申请号：CA2240464
申请日：1996-12-16
Applicant: BASF AG
Inventor： HEMPEL RENATE , ROTERMUND UDO , BOLLMANN HEINZ , KRECH RUEDIGER , GENZ MANFRED , SCHOLZ WOLFGANG
Abstract: The invention relates to a microcellular PU elastomer with improved dynamicmechanical 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 ~C in N,Ndimethylformamide 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.
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