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    52.
    发明专利
    未知

    公开(公告)号：ES2090204T5

    公开(公告)日：2001-05-16

    申请号：ES91117703

    申请日：1991-10-17

    Applicant: BASF AG

    Inventor： LUTTER HEINZ-DIETER DR ,  ZSCHIESCHE RUTH DR ,  GABBERT HANS-JURGEN DR ,  HAASE VOLKER ,  FIMMEL KARL

    IPC: C08L75/04 ,  C08G18/38 ,  C08G18/48 ,  C08G18/65 ,  C08K3/04 ,  C08K3/32 ,  C08K5/3492 ,  C08K13/02

    Abstract: The invention relates to a process for the production of flame-resistant soft polyurethane foams which evolve less smoke in the event of fire, by reacting a) organic polyisocyanates and/or modified organic polyisocyanates with b) relatively high-molecular-weight compounds containing at least two reactive hydrogen atoms, and optionally c) chain extenders and/or crosslinking agents, in the presence of d) a mixture of flameproofing agents which contains: di) melamine, dii) expandable graphite and optionally diii) at least one additional other flameproofing agent, preferably a modified or unmodified ammonium polyphosphate, e) blowing agents, f) catalysts, and optionally g) assistants and/or additives, and melamine/expandable graphite/polyether-polyol dispersions which are suitable for this purpose.

    53.
    发明专利
    未知

    公开(公告)号：DK0482507T4

    公开(公告)日：2001-05-14

    申请号：DK91117703

    申请日：1991-10-17

    Applicant: BASF AG

    Inventor： LUTTER HEINZ-DIETER DR ,  ZSCHIESCHE RUTH DR ,  GABBERT HANS-JUERGEN DR ,  HAASE VOLKER ,  FIMMEL KARL

    IPC: C08L75/04 ,  C08G18/38 ,  C08G18/48 ,  C08G18/65 ,  C08K3/04 ,  C08K3/32 ,  C08K5/3492 ,  C08K13/02

    Abstract: The invention relates to a process for the production of flame-resistant soft polyurethane foams which evolve less smoke in the event of fire, by reacting a) organic polyisocyanates and/or modified organic polyisocyanates with b) relatively high-molecular-weight compounds containing at least two reactive hydrogen atoms, and optionally c) chain extenders and/or crosslinking agents, in the presence of d) a mixture of flameproofing agents which contains: di) melamine, dii) expandable graphite and optionally diii) at least one additional other flameproofing agent, preferably a modified or unmodified ammonium polyphosphate, e) blowing agents, f) catalysts, and optionally g) assistants and/or additives, and melamine/expandable graphite/polyether-polyol dispersions which are suitable for this purpose.

    54.
    发明专利
    未知

    公开(公告)号：AT176254T

    公开(公告)日：1999-02-15

    申请号：AT95105077

    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.

    56.
    发明专利
    未知

    公开(公告)号：AT165851T

    公开(公告)日：1998-05-15

    申请号：AT93101611

    申请日：1993-02-03

    Applicant: BASF AG

    Inventor： LUTTER HEINZ-DIETER DR ,  BRUCHMANN BERND DR ,  SPANG CLAUDIA ,  MINGES ROLAND DR ,  SCHERZER DIETRICH DR ,  LUGMAYR MICHAEL ,  ZSCHIESCHE RUTH DR

    IPC: C08G18/10 ,  C08G18/12 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J9/02

    Abstract: The invention relates to a process for the preparation of CFC-free flexible polyurethane(moulded) foams by reacting A) liquid polyisocyanate mixtures containing bonded urethane groups and containing from 20 to 30% by weight of NCO groups, themselves prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates (crude MDI) with a polyether-polyol mixture having a hydroxyl number of from 120 to 25 comprising at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene polyoxyethylene polyol containing from 90 to 10% by weight of ethylene oxide units or by reacting 4,4'-diphenylmethane diisocyanate (MDI) or an MDI isomer mixture with said polyether polyol mixture 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 to the urethane group-modified polyisocyanate mixtures (A) which can be used according to the invention.

    57.
    发明专利
    未知

    公开(公告)号：DE59108073D1

    公开(公告)日：1996-09-19

    申请号：DE59108073

    申请日：1991-10-17

    Applicant: BASF AG

    Inventor： LUTTER HEINZ-DIETER DR ,  ZSCHIESCHE RUTH DR ,  GABBERT HANS-JUERGEN DR ,  HAASE VOLKER ,  FIMMEL KARL

    IPC: C08L75/04 ,  C08G18/38 ,  C08G18/48 ,  C08G18/65 ,  C08K3/04 ,  C08K3/32 ,  C08K5/3492 ,  C08K13/02

    Abstract: The invention relates to a process for the production of flame-resistant soft polyurethane foams which evolve less smoke in the event of fire, by reacting a) organic polyisocyanates and/or modified organic polyisocyanates with b) relatively high-molecular-weight compounds containing at least two reactive hydrogen atoms, and optionally c) chain extenders and/or crosslinking agents, in the presence of d) a mixture of flameproofing agents which contains: di) melamine, dii) expandable graphite and optionally diii) at least one additional other flameproofing agent, preferably a modified or unmodified ammonium polyphosphate, e) blowing agents, f) catalysts, and optionally g) assistants and/or additives, and melamine/expandable graphite/polyether-polyol dispersions which are suitable for this purpose.

    58.
    发明专利
    未知

    公开(公告)号：ES2088603T3

    公开(公告)日：1996-08-16

    申请号：ES93102026

    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.

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