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：ES2064802T3

公开(公告)日：1995-02-01

申请号：ES91107075

申请日：1991-05-02

Applicant: BASF AG

Inventor： HENN ROLF DR ,  HINZ WERNER DR ,  SCHUSTER LUDWIG DR ,  VORSPOHL KLAUS DR

IPC: C08G18/48 ,  C08G65/26 ,  C08G65/28

Abstract: The invention relates to a process for the production of rigid foams containing urethane or urethane and isocyanurate groups by reacting a) polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyols containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa.s at 23 DEG C, prepared by anionic polymerisation of 1,2-propylene oxide or ethylene oxide and 1,2-propylene oxide onto an initiator molecule mixture containing, based on the total weight, a1) from 40 to 80 % by weight of hexanetetrols, a2) from 1 to 30 % by weight of hexanetriols, a3) from 0 to 35 % by weight of glycerol and a4) from 0 to 15 % by weight of sorbitol or mannitol or mixtures thereof, and b) optionally low-molecular-weight chain extenders and/or crosslinking agents with c) organic, optionally modified polyisocyanates, in the presence of d) blowing agents, e) catalysts and optionally f) assistants and/or additives, and to the polyoxypropylene-polyols and polyoxyethylene- polyoxypropylene-polyols which can be used for this purpose.

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.

公开(公告)号：AT114684T

公开(公告)日：1994-12-15

申请号：AT91107075

申请日：1991-05-02

Applicant: BASF AG

Inventor： HENN ROLF DR ,  HINZ WERNER DR ,  SCHUSTER LUDWIG DR ,  VORSPOHL KLAUS DR

IPC: C08G18/48 ,  C08G65/26 ,  C08G65/28 ,  C08G101/00

Abstract: The invention relates to a process for the production of rigid foams containing urethane or urethane and isocyanurate groups by reacting a) polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyols containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa.s at 23 DEG C, prepared by anionic polymerisation of 1,2-propylene oxide or ethylene oxide and 1,2-propylene oxide onto an initiator molecule mixture containing, based on the total weight, a1) from 40 to 80 % by weight of hexanetetrols, a2) from 1 to 30 % by weight of hexanetriols, a3) from 0 to 35 % by weight of glycerol and a4) from 0 to 15 % by weight of sorbitol or mannitol or mixtures thereof, and b) optionally low-molecular-weight chain extenders and/or crosslinking agents with c) organic, optionally modified polyisocyanates, in the presence of d) blowing agents, e) catalysts and optionally f) assistants and/or additives, and to the polyoxypropylene-polyols and polyoxyethylene- polyoxypropylene-polyols which can be used for this purpose.

公开(公告)号：DK0433878T3

公开(公告)日：1994-10-24

申请号：DK90124026

申请日：1990-12-13

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  LUTTER HEINZ-DIETER DR ,  LEPPKES REINHARD DR ,  HORN PETER DR ,  DECKER WALTER ,  HAASE VOLKER

IPC: C08G18/48 ,  C08G18/66

Abstract: The invention relates to a process for the production of flexible, soft polyurethane foams having viscoelastic, structure borne soundproofing properties in a temperature range of from -20 DEG C to +80 DEG C, by reacting a) a polyoxyalkylene-polyol mixture containing ai) a block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9 % by weight, based on the weight of the polyoxypropylene units, of terminally bonded ethylene oxide units, and prepared by anionic polymerisation at elevated temperature of 1,2-propylene oxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8 comprising water and glycerol and/or trimethylolpropane, and polymerisation of ethylene oxide onto the resultant polyoxypropylene adduct, and aii) at least one difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85 % by weight, based on the total weight of polymerised alkylene oxide units, of oxyethylene units, and having a hydroxyl number of from 20 to 80, and b) optionally low-molecular-weight chain extenders with c) organic and/or modified organic polyisocyanates, in the presence of d) catalysts, e) blowing agents, preferably water, and optionally f) assistants and/or additives, and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.

公开(公告)号：ES2052146T3

公开(公告)日：1994-07-01

申请号：ES90124074

申请日：1990-12-13

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  HINZ WERNER DR ,  DECKER WALTER ,  LEPPKES REINHARD DR ,  REICH ERHARD DR ,  PETERS REINHARD DR ,  HAASE VOLKER ,  LUGMAYR MICHAEL

IPC: C08G18/48 ,  C08G18/72 ,  C08G65/26 ,  C08G65/28 ,  C08G101/00 ,  C08J9/00

Abstract: Flexible polyurethane foams having low compressive strength and relatively good tensile strength are prepared by reacting a) a block polyoxypropylenepolyoxyethylenepolyol mixture which has a hydroxyl number of from 14 to 65, contains from 2 to 9% by weight, based on the weight of the polyoxypropylene units, of ethylene oxide units bonded in the terminal position and is prepared by anionic polymerization of the alkylene oxides with an initiator mixture having an average functionality of from 2.3 to 2.8 and consisting of water and glycerol and/or trimethylolpropane, or a mixture of these block polyoxypropylenepolyoxyethylenepolyol mixtures with bi- and/or trifunctional polyoxypropylenepolyoxyethylenepolyols having a hydroxyl number of from 20 to 70, and b) if required, low molecular weight chain extenders with c) organic and/or modified organic polyisocyanates in the presence of d) catalysts, e) blowing agents, preferably water, and if required, f) assistants and/or additives.

公开(公告)号：DE4218791A1

公开(公告)日：1993-12-09

申请号：DE4218791

申请日：1992-06-06

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  MALETZKO CHRISTIAN DR ,  BECKER JOHANNES DR ,  MATZKE GUENTER DR

IPC: C08G18/66 ,  C08G18/10 ,  C08G18/50 ,  C08G18/65 ,  C08G101/00 ,  C08J9/02 ,  C08J9/14 ,  C08G18/32

Abstract: The invention relates to a process for the preparation of compact or cellulose elastomers containing urethane and urea groups by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene-polyamines and polyoxyalkylene-polyamines having 2 to 4 primary amino groups and molecular weights of from 1,000 to 8,000, and c) at least alkyl-substituted aromatic polyamine having a molecular weight of up to 500, in the presence or absence of d) catalysts, and optionally e) blowing agents, f) auxiliaries and/or g) additives. om

公开(公告)号：DE4218790A1

公开(公告)日：1993-12-09

申请号：DE4218790

申请日：1992-06-06

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  MALETZKO CHRISTIAN DR ,  CHAKRABARTI SARBANANDA ,  BECKER JOHANNES DR ,  BRUCHMANN BERND DR

IPC: C08G18/60 ,  C08G18/10 ,  C08G18/50 ,  C08G18/65 ,  C08G18/66 ,  C08G18/80 ,  C08G18/32

Abstract: The invention relates to a process for the preparation of elastic, cellular or compact elastomers containing bonded urethane groups or urethane and urea groups, preferably elastomer mouldings, in particular airbag covers, by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, c) at least one N-perethoxylated polyoxyalkylene-polyamine and d) low-molecular-weight chain extenders and/or crosslinking agents, in the presence or absence of e) catalysts, f) auxiliaries and g) blowing agents, in a mould.o

公开(公告)号：DE4040464A1

公开(公告)日：1992-07-02

申请号：DE4040464

申请日：1990-12-18

Applicant: BASF AG

Inventor： HINZ WERNER DR ,  HENN ROLF DR ,  LEPPKES REINHARD DR

IPC: C08G18/48 ,  C08G65/26

公开(公告)号：ES2127430T3

公开(公告)日：1999-04-16

申请号：ES95105077

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.