公开(公告)号：DE19742011A1

公开(公告)日：1999-03-25

申请号：DE19742011

申请日：1997-09-24

Applicant: BASF AG

Inventor： ROTERMUND UDO DR ,  BIEDERMANN ANJA DR ,  HEMPEL RENATE ,  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 ,  C08L75/08 ,  C08G65/38

Abstract: Emulsions containing polyether alcohols are used in the production of hard foams based on isocyanates to improve the temperature stability of the foams. Storage-stable halogen-free emulsions used in the production of hard foams based on isocyanates contain: (a) compounds containing hydrogen atoms reactive towards isocyanate groups; (b) water; (c) halogen-free propellants; and optionally (d) usual auxiliary aids and/or additives. (a) is used in an amount of 0.2-80 wt.% and has a functionality of more than 1.5, and an OH number of 10-100 mg KOH/g. (c) consists of 3-10 C hydrocarbons. Independent claims are also included for: (1) the production of the hard foams described; (2) the foams, and (3) the use of the polyether alcohols described.

公开(公告)号：DE19709868A1

公开(公告)日：1998-09-17

申请号：DE19709868

申请日：1997-03-11

Applicant: BASF AG

Inventor： KNORR GOTTFRIED DR ,  ROTERMUND UDO DR ,  BAUM EVA ,  SEIFERT HOLGER DR ,  WIEGMANN WERNER

IPC: C08J9/08 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08J9/14 ,  C08L75/04 ,  C08J9/06 ,  F16L59/00 ,  E04B1/74 ,  F25D23/06

Abstract: The production of rigid polyurethane (PUR) foam with a low bulk density (I) comprises reacting (a) polyisocyanates and/or modified polyisocyanates with (b) high-mol. wt. compound(s) with at least two reactive hydrogens and optionally (c) low-mol. wt. chain-extenders and/or crosslinkers in presence of (d) blowing agents, (e) catalysts and optionally (f) other additives etc. Component (d) consists of a mixture of (d-1) cyclopentane, (d-2) at least one 3-4C alkane and/or alkene which forms a homogeneous mixture with cyclopentane and (d-3) the carbon dioxide from the reaction of water and isocyanate. Component (b) comprises aromatic nitrogen-containing polyethers.

公开(公告)号：DE19648724A1

公开(公告)日：1998-05-28

申请号：DE19648724

申请日：1996-11-25

Applicant: BASF AG

Inventor： GUETTES BERND ,  BIEDERMANN ANJA ,  HEMPEL RENATE ,  KNORR GOTTFRIED DR ,  ROTERMUND UDO DR

IPC: C07G1/00 ,  C08G18/64 ,  C08H8/00 ,  C08L71/02 ,  C08L97/00 ,  C08G18/48 ,  C08G18/52 ,  C08G18/60 ,  C08G18/56 ,  C08G18/42 ,  C08L75/04

Abstract: Lignin containing polyhydroxy compounds are claimed which are prepared by reacting a solution, comprising lignin of salt content, based on Na and K ions, of 5000-15000 ppm, a polyalkylene glycol(s) from polyethylene glycols and/or polypropylene glycols giving a total OH functionality of at least 2 and optionally an OH, NH or NH2 functional compound(s) of H functionality at least 2, with an alkylene oxide(s). Also claimed are the preparation of the above compounds, the preparation of compact or flexible polyurethanes by reacting high mol wt. compounds with at least two reactive H atoms, preferably polyhydroxy compounds, and lignin containing polyhydroxy compounds with optionally modified organic polyisocyanates, optionally in the presence of chain extenders and/or crosslinkers, propellants, catalysts and aids and the obtained compact or cellular polyurethanes. Preferably the polyalkylene glycols have a mol. wt. of 400-4000, preferably 600-1500 and a polypropylene glycol content of 0-50, especially 0-10%. The lignin has a salt content of 5000-12000 ppm. The functional compound is an at least diol, sugar alcohol, saccharide, amino alcohol or aliphatic or aromatic amine. The high mol wt. compounds have a functionality of 2-8 and an OH number of 25-500, preferably from polythioether polyols, polyester amides, OH containing polyacetals and polycarbonates, polyester polyols, polyether polyols and/or polymer-modified polyether polyols. The propellant is water and/or 3-7C alkanes.

公开(公告)号：DE19548770A1

公开(公告)日：1997-06-26

申请号：DE19548770

申请日：1995-12-23

Applicant: BASF AG

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

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76 ,  C08G18/78 ,  C08G18/38 ,  C08G18/10 ,  C08G18/40 ,  C08G18/65 ,  C08L75/00 ,  B29C45/03 ,  B29C67/20

Abstract: The invention relates to a microcellular PU elastomer with improved dynamic-mechanical 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 DEG C in N,N-dimethylformamide 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.

公开(公告)号：DE19526979A1

公开(公告)日：1997-01-30

申请号：DE19526979

申请日：1995-07-25

Applicant: BASF AG

Inventor： ROTERMUND UDO DR ,  KNORR GOTTFRIED DR ,  HEMPEL RENATE ,  SEIFERT HOLGER DR

IPC: C08J9/02 ,  C08G18/00 ,  C08G18/08 ,  C08G18/28 ,  C08G18/65 ,  C08J9/14 ,  C08G18/40 ,  C08L75/00 ,  C08K5/01 ,  C08K5/05 ,  F16L59/00 ,  E04B1/74

Abstract: The novel feature in rigid foam prodn. from polyisocyanates, high mol.wt. cpds. with 2 or more reactive H atoms and opt. also chain extenders and/or crosslinkers is that the blowing agent is a mixt. of (i) a low boiling 3-7C hydrocarbon; and (ii) a low mol., monofunctional, primary or secondary OH gp.-contg. 1-4C alcohol. The (i)+(ii) mixt. is also claimed per se and can be used in combination with CO2 produced in situ from water and the isocyanate.

公开(公告)号：DK0832909T4

公开(公告)日：2015-07-13

申请号：DK97116522

申请日：1997-09-23

Applicant: BASF AG

Inventor： ROTERMUND UDO DR ,  HEMPEL RENATE ,  SEIFERT HOLGER DR ,  WIEGMANN WERNER

IPC: C08G18/48 ,  C08J9/12 ,  C08G18/06 ,  C08G18/50 ,  C08G101/00

公开(公告)号：ES2234061T3

公开(公告)日：2005-06-16

申请号：ES98117893

申请日：1998-09-22

Applicant: BASF AG

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

IPC: C08G18/00 ,  C08G18/28 ,  C08G18/34 ,  C08G18/36 ,  C08G18/40 ,  C08J9/00 ,  C08G18/42 ,  C08G18/65 ,  C08G18/66 ,  C08G101/00 ,  C08J9/08 ,  C08J9/14 ,  C09K23/34

Abstract: EMULSIONES QUE CONTIENEN ESPUMANTES, CONTENIENDO A) COMPUESTOS QUE CONTIENEN ATOMOS DE HIDROGENO QUE SON REACTIVOS CON RESPECTO A LOS ISOCIANATOS, B) ESPUMANTES, C) CATALIZADORES USUALES EN LA QUIMICA DEL POLIURETANO, ADYUVANTES Y/O ADITIVOS, CARACTERIZADOS PORQUE LOS ESPUMANTES B) SE PRESENTAN EN EMULSION EN LOS COMPONENTES A) Y C), Y COMO ADYUVANTE DE EMULSION SE UTILIZAN POLIESTERALCOHOLES CON LA SIGUIENTE ESTRUCTURA CON M DE 0 - 15 N DE 0 - 1 O DE 0 - 15 P DE 0 - 1 Q DE 0 - 15 R DE 0 - 1 S DE 0 - 15 T DE 0 - 1 U DE 0 - 10 V DE 0 - 15 X DE 1 - 5 Y DE 1 - 4 O MEZCLAS ENTRE 1 - 3 CON R + N /= 0 Z DE 0 - 3 Z SUB,J DE 0,1 - 3 R 1 ES UNA ESTRUCTURA ALIFATICA SIN GRUP OS OH QUE SE BASA EN LA ESTRUCTURA DE ALCOHOLES POLIVALENTES, PREFERIBLEMENTE ETILENGLICOL, DIETILENGLICOL, TRIETILENGLICOL, 1,2 PROPILENGLICOL Y DIPROPILENGLICOL, 1,4 - BUTANODIOL, 1,6 HEXANODIOL, NEOPENTILGLICOL, 1,3 - BUTANODIOL, TRIMETILOPROPANO, TRIMETILOLETANO, GLICERINA, PENTAERITRITA, PUDIENDO SER UTILIZADOS ESTOS COMPUESTOS EN UNA MEZCLA DE UNOS CON OTROS COMO SE QUIERA EN UNA ESTERIFICACION, Y R 1 PUEDE SIGNIFICAR POR TANTO LAS CORRESPONDIENTES ESTRUCTURAS. R 2 ES EL RADICAL DE UN ACIDO POLICARBOXILICO SIN GRUPOS COOH, P. E. ACIDO ADIPICO,, ACIDO TEREFTALICO, ACIDO O FTALICO, R 3 ES UN RADICAL ALCOHOLICO COMO R 1 .

公开(公告)号：AT265927T

公开(公告)日：2004-05-15

申请号：AT99110033

申请日：1999-05-21

Applicant: BASF AG

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

IPC: B32B5/18 ,  C08G18/48 ,  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：AT265479T

公开(公告)日：2004-05-15

申请号：AT97116522

申请日：1997-09-23

Applicant: BASF AG

Inventor： ROTERMUND UDO DR ,  HEMPEL RENATE ,  SEIFERT HOLGER DR ,  WIEGMANN WERNER

IPC: C08J9/12 ,  C08G18/06 ,  C08G18/48 ,  C08G18/50 ,  C08G101/00

Abstract: A process for the production of rigid polyurethane foam with improved thermodimensional stability and reduced thermal conductivity comprises reacting (a) polyisocyanates with (b) compounds with isocyanate-reactive hydrogen atoms in presence of (c) water and optionally (d) physical blowing agents and (e) catalysts and other additives etc. 60-100 wt% of component (b) consists of a polyol mixture containing (b1) a polyol obtained by addition of ethylene oxide (EO) and/or propylene oxide (PO) to a hexitol or hexitol mixture and (b2) a polyol obtained by addition of EO and/or PO to one or more aromatic amines, such that the total hexitol content and the total amine content of the polyol mixture is 15-30 wt% and 1-10 wt% respectively.

公开(公告)号：ES2141629T3

公开(公告)日：2000-03-16

申请号：ES98110611

申请日：1998-06-10

Applicant: BASF AG

Inventor： GLUCK GUISCARD DR ,  HAHN KLAUS DR ,  ROTERMUND UDO DR ,  VOLKERT OTTO DR

IPC: C08J9/04 ,  C08G18/00 ,  C08G18/48 ,  C08J9/00 ,  C08K3/04 ,  C08L75/04

Abstract: In the production of rigid polyurethane (PUR) foam with low thermal conductivity by reacting (a) organic and/or modified organic polyisocyanates with (b) compounds containing NOTLESS 2 reactive hydrogen atoms in the presence of (c) blowing agent, (d) catalyst and optionally (e) ancillaries and/or additives, the novelty is that graphite is added to (a) and/or (b). Also claimed is rigid PUR foam produced in this way.