公开(公告)号：DE4205934A1

公开(公告)日：1993-09-02

申请号：DE4205934

申请日：1992-02-27

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  ZSCHIESCHE RUTH DR ,  LUTTER HEINZ-DIETER DR ,  BRUCHMANN BERND DR

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08G18/80

Abstract: The invention relates to a process for the production of CFC-free flexible (moulded) polyurethane foams of low density by reacting A) liquid polyisocyanate mixtures containing bonded urethane groups and containing from 22 to 30% by weight of NCO groups, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyantes and polyphenylpolymethylene polyisocyanates (crude MDI) with at least one polyoxypropylene-polyoxyethylene-polyol having a functionality of from 2.5 to 3.5, a hydroxyl number of from 50 to 90 and a content of polymerised ethylene oxide groups of from greater than 30 to less than 50% by weight, based on the weight of polymerised ethylene oxide and 1,2-propylene oxide groups, or by reacting 4,4'-diphenylmethane diisocyanate (MDI) or an MDI isomer mixture with said polyoxypropylene-polyoxyethylene-polyol to give an NCO-containing quasi prepolymer and diluting this quasi prepolymer with crude MDI, with B) relatively high-molecular-weight polyhydroxyl compounds and optionally C) low-molecular-weight chain extenders and/or crosslinking agents in the presence of D) blowing agents, E) catalysts and optionally F) auxiliaries and/or additives, and the urethane group-modified polyisocyanate mixtures (A) which can be used according to the invention.

公开(公告)号：ES2241087T3

公开(公告)日：2005-10-16

申请号：ES98118125

申请日：1998-09-24

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  LUTTER HEINZ-DIETER DR

IPC: C08G18/28 ,  C08G18/48

Abstract: EL OBJETO DE LA INVENCION ES UN PROCEDIMIENTO PARA LA FABRICACION DE ESPUMAS BLANDAS DE POLIURETANO MEDIANTE UNA REACCION CONOCIDA DE POLIISOCIANATOS CON COMPUESTOS, QUE CONTIENE AL MENOS DOS ATOMOS DE HIDROGENO REACTIVOS CON EL ISOCIANATO, CARACTERIZADO PORQUE LA REACCION SE REALIZA EN PRESENCIA DE COMPUESTOS CICLICOS O HETEROCICLICOS QUE CONTIENE AL MENOS UN ATOMO DE HIDROGENO REACTIVO.

公开(公告)号：DK0677540T3

公开(公告)日：1999-09-13

申请号：DK95105077

申请日：1995-04-05

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  ZSCHIESCHE RUTH DR ,  LUTTER HEINZ-DIETER DR ,  SPANG CLAUDIA DR ,  HINZ WERNER DR

IPC: C08J9/02 ,  C08G18/18 ,  C08G18/20 ,  C08J9/12

Abstract: Prodn. of polyurethane foam involves reacting (a) organic and/or modified organic polyisocyanate(s) with (b) polyol(s) of relatively high mol. wt., which contain at least 2 reactive H atoms and (c) opt. low mol. chain extender and/or crosslinker in the presence of (d) blowing agent, (e) catalyst and (f) opt. additives. The novelty is that the catalyst comprises aminoalkyl- or aminophenyl-imidazole cpds. of formula (IA) and/or (IB). In (IA) and (IB), R ,R , R = 1-10C alkyl, 1-4C alkoxy, N-mono- and N,N-di-(1-4C)-alkylamino, N-mono- and N,N-di-(1-4C)-alkylamino-(2-4C)-alkylene, Ph, halogen or H; R = as R except halogen and alkoxy; X = 2-6C alkylene or phenylene; Y = H, 2-4C hydroxyalkyl or hydroxypoly-(2-20C)-oxyalkylene; Z = 1-4C alkyl, Ph or as Y. Also claimed is the use of (IA) and/or (IB), esp. 1-(3-aminopropyl)-imidazole (IC), 1-(3-aminopropyl)-2-methylimidazole (ID) or 1-(3-aminopropyl)-2-ethyl-4-methylimidazole (IE) as catalyst for the prodn. of polyisocyanate polyadducts.

公开(公告)号：DE19744747A1

公开(公告)日：1999-04-15

申请号：DE19744747

申请日：1997-10-10

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  LUTTER HEINZ-DIETER DR

IPC: C08G18/28 ,  C08G18/48 ,  C08G18/66 ,  C08G18/32 ,  C08G18/38 ,  C08L75/12 ,  C08J9/16

Abstract: Cyclic or heterocyclic compounds with at least one reactive hydrogen atom are used as co-reactants in the production of flexible polyurethane (PUR) foam by reacting polyisocyanates with compounds containing at least two isocyanate-reactive hydrogen atoms. An Independent claim is also included for highly elastic and viscoelastic flexible PUR foam made by this process.

公开(公告)号：DE19735488A1

公开(公告)日：1999-02-18

申请号：DE19735488

申请日：1997-08-16

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  BRUCHMANN BERND DR ,  WENZEL MARION ,  WAGNER KLAUS

IPC: C08G18/10 ,  C08G18/76 ,  C08G18/42 ,  C08G18/61 ,  C08G18/48 ,  C08L75/04

Abstract: The preparation of polyurethane soft foams involves using polyester polyols as the polyol component and compound containing silicon atoms and polyether chains. The preparation of polyurethane (PU) soft foams comprises reacting polyisocyanates comprising isocyanate and urethane group-containing prepolymers from diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanates and polyether polyols with compounds with at least two active hydrogen atoms from polyester polyols in the presence of propellants, catalysts and additives and aids containing silicon atoms and polyether chains. SPECIFIC SUBSTANCES - The polyester polyols have a functionality of 2-4 and a mol. wt. of 1800-3600.

公开(公告)号：DE59503484D1

公开(公告)日：1998-10-15

申请号：DE59503484

申请日：1995-03-29

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  ZSCHIESCHE RUTH DR ,  MERTES JUERGEN DR ,  BRUCHMANN BERND DR ,  PITTRICH KLAUS ,  BRANDT PETER DR

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08J9/02 ,  C08G18/40 ,  C08G18/48 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J9/14

Abstract: The prepn. of chlorofluorocarbon (CFC)-free polyurethane soft foams comprises reacting: (A) liq. diphenylmethane diisocyanate-based polyisocyanate mixts. contg. bonded urethane gps.; with (B) high mol. wt. polyhydroxyl cpds.; and (C) opt. low mol. wt. chain extenders and/or cross linking agents; in the presence of (D) propellants; (E) catalysts; and (F) opt. additives. (A) contains 22-30 wt. % NCO gps. and is prepd. by reacting a diphenylmethane diisocyanate/polyisocyanate mixt. (a) contg. 55-99 wt. % diphenylmethane diisocyanate isomers, with at least one trifunctional polyoxypropylene polyol (b) with a hydroxy value of 20-60. (A) are also claimed per se.

公开(公告)号：DE19629160A1

公开(公告)日：1998-01-22

申请号：DE19629160

申请日：1996-07-19

Applicant: BASF AG

Inventor： WAGNER KLAUS ,  LUTTER HEINZ-DIETER DR ,  LARBIG HARALD DR ,  GUETTES BERND ,  DINSCH STEFAN ,  STEINCHEN KARL-HEINZ ,  HOEPPNER GERD

IPC: C08G18/48 ,  C08G65/28 ,  C08G65/30 ,  C08G18/66 ,  C09K21/14 ,  C08J9/12 ,  B29C67/20 ,  B68G11/04 ,  D06N1/00

Abstract: A process for the production of flexible polyurethane foam comprises reacting: (a) optionally modified polyisocyanates with: (b) compounds with reactive hydrogens, and (c) optionally chain extenders and/or crosslinkers, in presence of: (d) blowing agents, (e) catalysts, (f) fire retardants, and optionally: (g) other additives etc. At least 10 wt% of the compounds used in this process comprises polyether-polyols obtained by base-catalysed reaction of lower alkylene oxides with hydroxy-functional starters and subjected, during or after alkylene oxides-addition and with a water content of not more than 0.1 wt.%, to distillation at temperatures above 49 degrees C.

公开(公告)号：DE59303097D1

公开(公告)日：1996-08-08

申请号：DE59303097

申请日：1993-02-10

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  ZSCHIESCHE RUTH DR ,  LUTTER HEINZ-DIETER DR ,  BRUCHMANN BERND DR

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08G18/80

Abstract: The invention relates to a process for the production of CFC-free flexible (moulded) polyurethane foams of low density by reacting A) liquid polyisocyanate mixtures containing bonded urethane groups and containing from 22 to 30% by weight of NCO groups, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyantes and polyphenylpolymethylene polyisocyanates (crude MDI) with at least one polyoxypropylene-polyoxyethylene-polyol having a functionality of from 2.5 to 3.5, a hydroxyl number of from 50 to 90 and a content of polymerised ethylene oxide groups of from greater than 30 to less than 50% by weight, based on the weight of polymerised ethylene oxide and 1,2-propylene oxide groups, or by reacting 4,4'-diphenylmethane diisocyanate (MDI) or an MDI isomer mixture with said polyoxypropylene-polyoxyethylene-polyol to give an NCO-containing quasi prepolymer and diluting this quasi prepolymer with crude MDI, with B) relatively high-molecular-weight polyhydroxyl compounds and optionally C) low-molecular-weight chain extenders and/or crosslinking agents in the presence of D) blowing agents, E) catalysts and optionally F) auxiliaries and/or additives, and the urethane group-modified polyisocyanate mixtures (A) which can be used according to the invention.

公开(公告)号：DK0557792T3

公开(公告)日：1996-07-29

申请号：DK93102026

申请日：1993-02-10

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  HINZ WERNER DR ,  ZSCHIESCHE RUTH DR ,  LUTTER HEINZ-DIETER DR

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08G18/80

Abstract: The invention relates to a process for the production of CFC-free flexible (moulded) polyurethane foams of low density by reacting A) liquid polyisocyanate mixtures containing bonded urethane groups and containing from 22 to 30% by weight of NCO groups, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyantes and polyphenylpolymethylene polyisocyanates (crude MDI) with at least one polyoxypropylene-polyoxyethylene-polyol having a functionality of from 2.5 to 3.5, a hydroxyl number of from 50 to 90 and a content of polymerised ethylene oxide groups of from greater than 30 to less than 50% by weight, based on the weight of polymerised ethylene oxide and 1,2-propylene oxide groups, or by reacting 4,4'-diphenylmethane diisocyanate (MDI) or an MDI isomer mixture with said polyoxypropylene-polyoxyethylene-polyol to give an NCO-containing quasi prepolymer and diluting this quasi prepolymer with crude MDI, with B) relatively high-molecular-weight polyhydroxyl compounds and optionally C) low-molecular-weight chain extenders and/or crosslinking agents in the presence of D) blowing agents, E) catalysts and optionally F) auxiliaries and/or additives, and the urethane group-modified polyisocyanate mixtures (A) which can be used according to the invention.

公开(公告)号：ES2061887T3

公开(公告)日：1994-12-16

申请号：ES89120526

申请日：1989-11-06

Applicant: BASF AG

Inventor： HORN PETER DR ,  REHMER GERD DR ,  LUTTER HEINZ-DIETER DR ,  RAMLOW GERHARD DR ,  HINZ WERNER DR ,  SCHMIDT HANS ULRICH

IPC: C08F216/14 ,  C08F218/10 ,  C08F220/28 ,  C08F220/58 ,  C08F222/20 ,  C08F226/00 ,  C08F226/06 ,  C08F290/06 ,  C08F299/02 ,  C08G18/40 ,  C08G18/62 ,  C08L75/04

Abstract: The novel copolymers having K values of from 5 to 80 are prepared by free-radical polymerisation of A) 20 to 80% by weight, based on the total weight of (A) and (B), of at least one olefinically unsaturated polyoxyalkylene alcohol or polyester alcohol adduct, (B) 80 to 20% by weight, based on the total weight of (A) and (B), of at least one vinyl monomer from the group comprising N-vinylformamide, -2-pyrrolidone, -2-piperidone, -2-caprolactam, -imidazole, -2-ethyleneurea and -2-propyleneurea, C) 0.05 to 40 parts by weight of glycidyl acrylate and/or glycidyl methacrylate, D) 0 to 10 parts by weight of at least one alpha , beta -monoolefinically unsaturated acid and E) 0 to 30 parts by weight of at least one olefinically unsaturated carboxamide and/or carboxylate and/or styrene, the parts by weight of (C), (D) and (E) in each case being based on 100 parts by weight of the monomers (A) and (B). The copolymers are used as assistants and/or additives, for example as dispersion and/or emulsification assistants, or as additives for improving the mechanical properties, in formulations for the preparation of polyisocyanate polyaddition products.