-
公开(公告)号：MX9805047A
公开(公告)日：1998-10-31
申请号：MX9805047
申请日：1998-06-22
Applicant: BASF AG
Inventor： KRECH RUDIGER , ROTERMUND UDO , BOLLMANN HEINZ , HEMPEL RENATE , SCHOLZ WOLFGANG , GENZ MANFRED
Abstract: La invencion se refiere a un elastomero PU microcelular con mejores características mecánicas-dinámicas, a base de un componente que contiene esencialmente 4,4'-mdi y otros componentes estándar. El elastomero en cuestion tiene una estructura fisicoquímica caracterizada pro una señal de uno o dos picos proxima a la señal principal molecular baja para una masa molar (aparente) mayor de 25,000 q/mol medida por cromatografía de permeacion en gel a partir de una solucion del elastomero PO microcelular producido a 90 degree C en N,N-dimetilformamida con 1% de di-n-butilamina, contra metacrilato de polimetilo (PMMA) como el estándar, siendo la señal reducida o eliminada después de la adicion de cloruro de litio a esta solucion. El elastomero tiene un contenido de urea de 14-10% en peso. También se describe un proceso para producir este elastomero PU microcelular con mejores características mecánicas-dinámicas y el uso de este elastomero para producir elementos amortiguadores.
-
公开(公告)号：MX9708925A
公开(公告)日：1998-09-30
申请号：MX9708925
申请日：1997-11-19
Applicant: BASF AG
Inventor： GENZ MANFRED , PRISSOK FRANK , HORN PETER , KRECH RUEDIGER , KING HORST , LEHR GERHARD
Abstract: Se preparan poliuretanos termoplásticos haciendo reaccionar (a) isocianatos con (b) compuestos reactivos a los isocianatos, en la presencia o ausencia de (c) extendedores de cadena, (d) catalizadores y (e) auxiliares y aditivos usuales y agregando poliuretanos reticulados en forma conminuta ante, durante y/o después de la reaccion.
-
公开(公告)号：TR199800670T1
公开(公告)日：1998-06-22
申请号：TR9800670
申请日：1996-09-30
Applicant: BASF AG
Inventor： GENZ MANFRED , HELLMANN GERHARD , HASELHORST WALTER , JESCHKE TORSTEN , BRUNS UTE , BOLLMANN HEINZ , STRAUSS MICHAEL , SCHOLZ WOLFGANG , PEUKER HARTMUT , VOELKEL RUDIGER
Abstract: Compact and preferably cellular polyurethane elastomers based on polyisocyanate mixtures containing 3,3'-dimethylbiphenyl 4,4'-diisocyanate are produced by reactinga) relatively high molecular weight polyhydroxyl compounds and, if desired,b) low molecular weight hydroxyl-containing chain extenders and/or crosslinkers withc) 3,3'-dimethylbiphenyl 4,4'-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or at least one aliphatic diisocyanate having from 4 to 12 carbon atoms and/or at least one 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 preferably ones based on diphenylmethane 4,4'-diisocyanate and 3,3'-dimethylbiphenyl 4,4'-diisocyanate.
-
公开(公告)号：TR199800465T1
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
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.
-
85.发明专利
公开(公告)号：ZA968645B
公开(公告)日：1998-04-14
申请号：ZA968645
申请日：1996-10-14
Applicant: BASF AG
Inventor： GENZ MANFRED , HELLMANN GERHARD , HASELHORST WALTER , JESCHKE TORSTEN , BRUNS UTE , BOLLMANN HEINZ , STRAUS MICHAEL , SCHOLZ WOLFGANG , PEUKER HARTMUT , VOELKEL RUEDIGER
Abstract: Compact and preferably cellular polyurethane elastomers based on polyisocyanate mixtures containing 3,3'-dimethylbiphenyl 4,4'-diisocyanate are produced by reactinga) relatively high molecular weight polyhydroxyl compounds and, if desired,b) low molecular weight hydroxyl-containing chain extenders and/or crosslinkers withc) 3,3'-dimethylbiphenyl 4,4'-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or at least one aliphatic diisocyanate having from 4 to 12 carbon atoms and/or at least one 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 preferably ones based on diphenylmethane 4,4'-diisocyanate and 3,3'-dimethylbiphenyl 4,4'-diisocyanate.
-
Patent Agency Ranking
公开(公告)号：ZA967731B
公开(公告)日：1998-03-13
申请号：ZA967731
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
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.
-
公开(公告)号：AU1372697A
公开(公告)日：1997-07-17
申请号：AU1372697
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.
-
公开(公告)号：BR9504534A
公开(公告)日：1997-05-27
申请号：BR9504534
申请日：1995-10-24
Applicant: BASF AG
Inventor： BAUMANN KARL-HEINZ , NIKOLITSCH JOHANN , GENZ MANFRED
IPC: B29C39/26 , B29C33/36 , B29C37/00 , B29C39/10 , B29C39/36 , B29C44/38 , B29C44/58 , B29K105/04 , B29C33/20
Abstract: In an apparatus for producing foamed plastics parts, a closed mold (1) is filled with polymer molding compound and, after the elapse of a reaction time, the finished part is removed. A plurality of identical molds (1) run on mold carriers (5) through a production installation. For the purpose of reducing the production outlay, a demolding device (11) shared by all the molds (1) is brought into operative connection successively with the molds (1) and in each case one mold (1) is opened. The movements required in this operation are executed by the demolding device (11). An unlocking unit (19) and a swiveling unit (20) of the demolding device (11) are brought into engagement with the mold (1) by a positioning unit (21), after which the mold (1) is unlocked and one mold half (1a) of the mold (1) is swung open. For unlocking the mold (1), the latter is raised against spring force and a positive locking is brought out of engagement.
-
公开(公告)号：AU7217296A
公开(公告)日：1997-05-07
申请号：AU7217296
申请日：1996-09-30
Applicant: BASF AG
Inventor： GENZ MANFRED , HELLMANN GERHARD , HASELHORST WALTER , JESCHKE TORSTEN , BRUNS UTE , BOLLMANN HEINZ , STRAUSS MICHAEL , SCHOLZ WOLFGANG , PEUKER HARTMUT , VOELKEL RUDIGER
Abstract: Compact and preferably cellular polyurethane elastomers based on polyisocyanate mixtures containing 3,3'-dimethylbiphenyl 4,4'-diisocyanate are produced by reactinga) relatively high molecular weight polyhydroxyl compounds and, if desired,b) low molecular weight hydroxyl-containing chain extenders and/or crosslinkers withc) 3,3'-dimethylbiphenyl 4,4'-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or at least one aliphatic diisocyanate having from 4 to 12 carbon atoms and/or at least one 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 preferably ones based on diphenylmethane 4,4'-diisocyanate and 3,3'-dimethylbiphenyl 4,4'-diisocyanate.
-
90.发明专利
公开(公告)号：CA2230171A1
公开(公告)日：1997-03-20
申请号：CA2230171
申请日：1996-09-09
Applicant: BASF AG
Inventor： PEUKER HARTMUT , SCHOLZ WOLFGANG , STRAUSS MICHAEL , HELLMANN GERHARD , BOLLMANN HEINZ , BRUNS UTE , VOELKEL RUEDIGER , JESCHKE TORSTEN , GENZ MANFRED , HASELHORST WALTER
Abstract: The invention concerns a method of preparing compact and preferably cellular polyurethane elastomers by reacting a) high molecular polyhydroxyl compounds and optionally b) low molecular chain-extending and/or crosslinking agents with c) 1,5-naphthylene diisocyanate and at least one additional aromatic diisocyanate, selected from the group comprising toluylene diisocyanate, diphenylmethane diisocyanate, 3,3'-dimethyl diphenyl diisocyante, 1,2diphenylethane diisocyanate and phenylene diisocyanate, and/or aliphatic diisocyanate with between 4 and 12 carbon atoms and/or cycloaliphatic diisocyanate with between 6 and 18 carbon atoms, the structural components (a), (c) and optionally (b) advantageously being reacted by the prepolymer method, in the presence or absence of d) catalysts, e) expanding agents and f) additives. The invention further concerns isocyanate prepolymers suitable for this method.
-
-
-
-
-
-
-
-
-
Search Results
92
records
(took 0.024 seconds)
