中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

63 records (took 0.024 seconds)

    41.
    发明专利
    未知

    公开(公告)号：DE4412677A1

    公开(公告)日：1995-10-19

    申请号：DE4412677

    申请日：1994-04-13

    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 ,  C08G18/40 ,  C08G18/65 ,  C08G18/10 ,  C08G18/79 ,  C08L75/04 ,  B29C67/20

    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.

    43.
    发明专利
    未知

    公开(公告)号：DE59007339D1

    公开(公告)日：1994-11-03

    申请号：DE59007339

    申请日：1990-12-13

    Applicant: BASF AG

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

    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.

    44.
    发明专利
    未知

    公开(公告)号：AT112297T

    公开(公告)日：1994-10-15

    申请号：AT90124026

    申请日：1990-12-13

    Applicant: BASF AG

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

    IPC: C08G18/48 ,  C08G18/66 ,  C08J9/08 ,  C08G101/00

    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.

    45.
    发明专利
    未知

    公开(公告)号：DE58906988D1

    公开(公告)日：1994-03-24

    申请号：DE58906988

    申请日：1989-11-06

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  REHMER GERD DR ,  LUTTER HEINZ-DIETER DR ,  RAMLOW GERHARD DR

    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 ,  C09K23/52

    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 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.

    48.
    发明专利
    未知

    公开(公告)号：DE4034046A1

    公开(公告)日：1992-04-30

    申请号：DE4034046

    申请日：1990-10-26

    Applicant: BASF AG

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

    49.
    发明专利
    未知

    公开(公告)号：DE3942330A1

    公开(公告)日：1991-06-27

    申请号：DE3942330

    申请日：1989-12-21

    Applicant: BASF AG

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

    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.

    50.
    发明专利
    未知

    公开(公告)号：DE3844048A1

    公开(公告)日：1990-07-05

    申请号：DE3844048

    申请日：1988-12-28

    Applicant: BASF AG

    Inventor： GENZ MANFRED DR ,  LEPPKES REINHARD DR ,  REICH ERHARD DR ,  SCHOENLEBEN WILLIBALD DR ,  HETTINGER PETER DR ,  LUTTER HEINZ-DIETER DR ,  RAMLOW GERHARD DR

    IPC: C08G18/10 ,  C08G18/18 ,  C08G18/40 ,  C08G18/48 ,  C08K5/3492

    Abstract: The process involves reacting a) organic and/or modified organic polyisocyanates with b) relatively high-molecular-weight compounds containing at least two reactive hydrogen atoms and c) optionally low-molecular-weight chain extenders, in the presence of d) catalysts, e) blowing agents, f) flameproofing agents and optionally g) assistants and/or additives, where the following are used: starting component (b) is a mixture having a mean functionality of from 2 to 4 and a mean molecular weight of from 2,200 to 8,000, and preferably containing: bi) from 40 to 94 parts by weight of at least one polyoxyalkylene polyol having a functionality of from 2 to 4 and a mean molecular weight of from 250 to 8,000, bii) from 3 to 25 parts by weight of at least one polymer-modified polyoxyalkylene polyol having a mean functionality of from 2 to 4 and a mean molecular weight of from 1,200 to 8,000, selected from the group comprising graft polyoxyalkylene polyols, and polyurethane-polyalkylene polyols containing bonded polyurea, polyhydrazide and/or tert.-amino groups, and biii) from 3 to 35 parts by weight of at least one polyoxyalkylene-polyamine having a functionality of from 2 to 4 and a mean molecular weight of from 1,800 to 8,000, and the flameproofing agent (f) is melamine or a mixture of melamine and other flameproofing agents.

Patent Agency Ranking