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公开(公告)号：DE19817507A1
公开(公告)日：1999-10-21
申请号：DE19817507
申请日：1998-04-20
Applicant: BASF AG
Inventor： ROTERMUND UDO , KNORR GOTTFRIED , HAYAMA YOSHIHIKO , HOLLE JOACHIM , SEIFERT HOLGER
IPC: C08G18/18 , C08G18/40 , C08G18/48 , C08G18/50 , C08J9/14 , C08L75/04 , F25D23/08 , C08G18/32 , C08G18/66 , C08G18/76
Abstract: In the production of rigid polyurethane foam by reacting (a) (modified) organic polyisocyanates with (b) compound(s) of mol. wt. over 400 containing NOTLESS 2 reactive H atoms and optionally (c) H-functional low-molecular chain extenders and/or crosslinking agents of mol. wt. less than 400 in the presence of (d) blowing agents, (e) catalysts and optionally (f) additives, component (b) contains (cyclo)alkyl-, aralkyl-, benzyl- and/or aryl-(alkoxy)alkanol(s) (I). In the production of rigid polyurethane (PUR) foam with low thermal conductivity by reacting: (a) organic and/or modified organic polyisocyanates with (b) compound(s) containing NOTLESS 2 reactive hydrogen (H) atoms and having a molecular weight of over 400 g/mole and optionally (c) H-functional low-molecular chain extenders and/or crosslinking agents of molecular weight less than 400 g/mole in the presence of (d) blowing agents, (e) catalysts and optionally (f) additives component (b) contains (cyclo)alkyl-, aralkyl-, benzyl- and/or aryl-(alkoxy)alkanol(s) of formula (I). R, R' = (m)ethyl, 3-6 carbon (C) alkyl or hydrogen (H); R' may also = benzyl; n = 0-4; m, o = 1-3; X = n-, iso-, neo- or cycloalkyl, aralkyl, benzyl or aryl; and m + o = 4. An Independent claim is also included for the use of compounds (I) in the production of rigid PUR foam with reduced thermal conductivity.
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公开(公告)号：AU710832B2
公开(公告)日：1999-09-30
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.
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公开(公告)号：DE19805879A1
公开(公告)日：1999-08-19
申请号：DE19805879
申请日：1998-02-13
Applicant: BASF AG
Inventor： BAUM EVA , ROTERMUND UDO , REICHELT MICHAEL , JUNG LUDWIG
Abstract: Foam stabilizers are used during production of rigid polyurethane foam which consist of alkoxylated organo-silicon compounds with a total silicon content of 5 wt.% or more and a relative weight ratio of (ethylene oxide)/(propylene oxide) (EO/PO) ≥ 70/30. A process for the production of rigid isocyanate-based foam comprises reacting: (a) optionally modified polyisocyanates, with (b) high mol.wt. compound(s) with at least two reactive hydrogen atoms, and optionally (c) low-mol.wt. chain extenders and/or crosslinkers, in presence of (d) carbon dioxide as the sole or additional blowing agent, (e) foam stabilizers, (f) catalysts, and optionally (g) other conventional additive(s). The foam stabilizers (e) comprise alkoxylated organo-silicon compounds with an Si content of 5 wt.% or more and EO/PO wt. ratio of ≥ 70/30
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公开(公告)号：BR9612273A
公开(公告)日：1999-07-13
申请号：BR9612273
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：NO992527D0
公开(公告)日：1999-05-26
申请号：NO992527
申请日：1999-05-26
Applicant: BASF AG
Inventor： BIEDERMANN ANJA , HEMPEL RENATE , ROTERMUND UDO , SCHILLING UDO , SCHLEGEL KARL
Abstract: In a composite element comprising layers of (i) polyisocyanate poly-addition product (PU), (ii) optionally at least one plastic, (iii) a gas permeation barrier and (iv) at least one thermoplastic, layers (iii) and (iv) are bonded together by melting a layer (iiia) between them. Independent claims are also included for: (a) sandwich elements with the following layers: (iv) 1-25 mm thermoplastic, (iii) 0.1-200 micro m metal foil coated on the opposite side from (i) and (ii) with 20-500 micro m thermoplastic (iiia) which is melted to bond (iii) with (iv), (ii) optionally 5-1000 micro m plastic, (i) 0.5-80 cm PU and then layers (ii), (iii) and (iv) as above; (b) tubes with the following layers: (iv) as above and/or metal as inner tube, (i), (ii), (iii) as above and (iv) (above) as an outer tube; (c) tubes with the following layers: (iv) plastic as above and/or metal as inner tube, (iii), (ii), (i), (ii), (iii) as above and (iv) plastic (above) as an outer tube; (d) the production of composite elements by reacting isocyanates with NCO-reactive compounds in the presence of blowing agents and optionally catalysts and other additives etc. in a reaction space bounded by layers (ii) (optional), (iii) gas barrier material, (iiia) 20-500 micro m thermoplastic and (iv) 1-25 mm thermoplastic(s), so that layer (iiia) is melted by the heat of reaction and binds layers (iii) and (iv) together after cooling; and (e) composite elements obtained by (d).
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Patent Agency Ranking
公开(公告)号：CA2240091A1
公开(公告)日：1999-01-04
申请号：CA2240091
申请日：1998-07-03
Applicant: BASF AG
Inventor： ROTERMUND UDO , HAHN KLAUS , VOLKERT OTTO , GLUECK GUISCARD
Abstract: Rigid polyurethane foams having a low thermal conductivity are produced by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound containing at least 2 reactive hydrogen atoms in the presence of c) blowing agents, d) catalysts and, if desired, e) auxiliaries and/or additives, wherein graphite is added to the component a) and/or b).
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公开(公告)号：PL327339A1
公开(公告)日：1998-12-07
申请号：PL32733996
申请日：1996-12-16
Applicant: BASF AG
Inventor： KRECH RUEDIGER , ROTERMUND UDO , BOLLMANN HEINZ , HEMPEL RENATE , SCHOLZ WOLFGANG , GENZ MANFRED
IPC: C08G18/08 , C08J9/36 , C08G18/40 , C08G18/76 , 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：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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