公开(公告)号：DE19823585A1

公开(公告)日：1999-12-02

申请号：DE19823585

申请日：1998-05-27

Applicant: BASF AG

Inventor： BIEDERMANN ANJA ,  HEMPEL RENATE ,  ROTERMUND UDO ,  SCHILLING UDO ,  SCHLEGEL KARL

IPC: B32B5/18 ,  C08G18/48 ,  E04C2/292 ,  E04C2/296 ,  F16L9/147 ,  F16L59/14 ,  C08J5/12 ,  B32B15/08

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).

公开(公告)号：DE19823393A1

公开(公告)日：1999-12-02

申请号：DE19823393

申请日：1998-05-26

Applicant: BASF AG

Inventor： REICHELT MICHAEL ,  ROTERMUND UDO ,  HEMPEL RENATE ,  FALKE PETER ,  MALOTKI PETER VON ,  SEIFERT HOLGER

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/50 ,  C08G18/76 ,  C09K3/10 ,  C08L75/04

Abstract: The invention relates to prepolymers which contain isocyanate groups and which can be produced by reacting an isocyanate mixture, said mixture being predominantly comprised of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates, with a maximum proportion of two-core isomers of 74 wt.% with at least 4 functional polyols or with a mixture of polyols having an average functionality of at least 4. The polyols or polyol mixture comprise(s) a hydroxyl value ranging from 200 to 1650 mg KOH/g and an average molar mass of less than 1100 g/mol with an NCO content of at least 30.0 wt.%. In addition, the invention relates to a method for producing these prepolymers which contain isocyanate groups, to their use for producing polyurethanes, and to a method for producing polyurethanes by reacting at least one of the inventive prepolymers which contain isocyanate groups, optionally mixed with additional organic and/or modified organic isocyanates (a), with compounds having at least two reactive hydrogen atoms (b) in the presence of optional expanding agents (c), catalysts (d), optional additional auxiliary agents and/or additives (e).

公开(公告)号：AT184034T

公开(公告)日：1999-09-15

申请号：AT96943968

申请日：1996-12-16

Applicant: BASF AG

Inventor： KRECH RUEDIGER ,  ROTERMUND UDO ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  SCHOLZ WOLFGANG ,  GENZ MANFRED

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76 ,  C08G101/00

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：CA2246007A1

公开(公告)日：1999-03-26

申请号：CA2246007

申请日：1998-09-25

Applicant: BASF AG

Inventor： VOLKERT OTTO ,  BIEDERMANN ANJA ,  HEINZ MARION ,  ROTERMUND UDO

IPC: C08J9/02 ,  B29C44/10 ,  C08J9/30 ,  C08L75/04

Abstract: Fine-celled rigid polyurethane foams are produced by reacting polyisocyanates with compounds containing at least two reactive hydrogen atoms in closed molds, wherein a) the reaction components are loaded with gas under pressure before being introduced into the mold, b) the mold is pressurized before, during or after introduction of the reaction mixture, c) depressurization takes place in the mold after introduction of the reaction mixture into the mold and before the rigid foam has set.

公开(公告)号：CA2245306A1

公开(公告)日：1999-03-24

申请号：CA2245306

申请日：1998-09-23

Applicant: BASF AG

Inventor： HEMPEL RENATE ,  BIEDERMANN ANJA ,  ROTERMUND UDO ,  WIEGMANN WERNER ,  HEINZ MARION

IPC: C08J3/02 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08G101/00 ,  C08J9/12 ,  C08J9/14 ,  C08L75/04

Abstract: Storage-stable, blowing agent-containing halogen-free emulsions for producing rigid foams based on isocyanate comprise a) compounds containing hydrogen atoms which are reactive toward isocyanate groups, b) water, c) physically acting, halogen-free blowing agents and, if desired, d) auxiliaries and/or additives which are customary in polyurethane chemistry, wherein the component a) comprises polyether alcohols having a functionality of greater than 1.5 and a hydroxyl number of from 10 to 100 mg KOH/g in an amount of from 0.2% by mass to 80% by mass, based on the mass of the component a), and the halogen-free, physically acting blowing agents c) used are hydrocarbons having from 3 to 10 carbon atoms.

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

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76 ,  C08J09/36

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：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

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76

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：NO323691B1

公开(公告)日：2007-06-25

申请号：NO992527

申请日：1999-05-26

Applicant: BASF AG

Inventor： BIEDERMANN ANJA ,  HEMPEL RENATE ,  ROTERMUND UDO ,  SCHILLING UDO ,  SCHLEGEL KARL

IPC: B32B27/40 ,  B32B5/18 ,  B32B27/06 ,  C08G18/48 ,  C08J5/18 ,  E04C2/292 ,  E04C2/296 ,  F16L9/147 ,  F16L59/14

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).

公开(公告)号：AT346832T

公开(公告)日：2006-12-15

申请号：AT03797284

申请日：2003-09-08

Applicant: BASF AG

Inventor： ROTERMUND UDO ,  HEMPEL RENATE ,  HESSE MICHAEL ,  RUDLOFF JAN ,  DESSEIX MARYLINE

IPC: C04B38/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/48

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.

公开(公告)号：ES2251521T3

公开(公告)日：2006-05-01

申请号：ES01985249

申请日：2001-09-19

Applicant: BASF AG

Inventor： REICHELT MICHAEL ,  ROTERMUND UDO ,  BOHME PETER

IPC: C07B63/00 ,  C08G18/38

Abstract: Procedimiento para producir un agente de limpieza, en el que se hace reaccionar un ácido fosfórico con al menos un diisocianato y/o al menos un poliisocianato en un disolvente de tal manera que se forme al menos temporalmente una disolución homogénea del ácido fosfórico y del diisocianato y/o poliisocianato en el disolvente.