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    MANUFACTURE OF FLEXIBLE FOAMS
    4.
    发明专利
    MANUFACTURE OF FLEXIBLE FOAMS 未知

    公开(公告)号：CA1129599A

    公开(公告)日：1982-08-10

    申请号：CA325401

    申请日：1979-04-10

    Applicant: BASF AG

    Inventor： JARRE WOLFGANG ,  STUTZ HERBERT ,  SCHOEN ERNST

    IPC: C08G18/00 ,  C08G18/72 ,  C08G18/76 ,  C08G18/80 ,  C08G18/14

    Abstract: MANUFACTURE OF FLEXIBLE FOAMS of the Invention This invention concerns a process for the manufacture of flexible polyurethane foams from urethane-modified aromatic polyisocyanates having an NCO content of 15 to 30 percent by weight and a viscosity of 100 to 2000 centipoises at 20.degree.C, which are obtained by reaction of a mixture of diphenylmethane diisocyanates and polyphenylene polymethylene polyisocyanates containing 55 to 85 percent by weight of diphenylmethane diisocyanate based on the total weight of the polyisocyanate mixture and a hydroxyl compound with 2 to 4 Zerewitinoff active hydrogen atoms and a molecular weight of 60 to 1500, in an equivalency ratio of NCO groups to active hydrogen atoms of the hydroxyl compound of 2:1 to 60:1, polyols, catalysts, blowing agents, and optionally, chain extenders, auxiliaries, and additives.

    PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS INVOLVING THE USE OF ALIPHATIC MONOAMINES
    5.
    发明专利
    PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS INVOLVING THE USE OF ALIPHATIC MONOAMINES 未知

    公开(公告)号：CA1161996A

    公开(公告)日：1984-02-07

    申请号：CA379138

    申请日：1981-06-05

    Applicant: BASF AG

    Inventor： HORACEK HEINRICH ,  MARX MATTHIAS ,  BUETHE INGOLF ,  JARRE WOLFGANG ,  SCHOEN ERNST

    IPC: C08G18/28 ,  C08G18/14 ,  C08G18/30

    Abstract: PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS INVOLVING THE USE OF ALIPHATIC MONOAMINES The invention relates a process for the preparation of a polyurethane foam by reacting an organic polyisocyanate, polyol, and primary or secondary aliphatic monoamine in the presence of a blowing agent and catalyst. The amines are used in quantities of 0.1 part to 10 parts by weight per 100 parts per weight of polyol. The highly elastic polyurethane flexible foams are suited for the manufacture of upholstered furniture, matresses, automobile seats and head supports, as well as particularly for molded foams. The semi-rigid polyurethane foams are used as foam backing of dashboards in automobiles, thermal and sound insulation in buildings and vehicles, and for impact absorption in packaging materials.

    PROCESS FOR THE MANUFACTURE OF FLEXIBLE POLYURETHANE FOAMS WITH HIGH LOAD-BEARING AND HIGH ENERGY-ABSORPTION CAPACITY
    7.
    发明专利
    PROCESS FOR THE MANUFACTURE OF FLEXIBLE POLYURETHANE FOAMS WITH HIGH LOAD-BEARING AND HIGH ENERGY-ABSORPTION CAPACITY 未知

    公开(公告)号：CA1129598A

    公开(公告)日：1982-08-10

    申请号：CA325400

    申请日：1979-04-10

    Applicant: BASF AG

    Inventor： JARRE WOLFGANG ,  WEYLAND PETER ,  MUELLER GERHARD

    IPC: C08G18/00 ,  C08G18/40 ,  C08G18/42 ,  C08G18/72 ,  C08G18/76 ,  C08G18/80 ,  C08G18/14 ,  C08G18/48

    Abstract: The invention concerns a process for the manufacture of flexible polyurethane foams by reaction of a mixture consisting of diphenylmethane diisocyanates and polyphenylene polymethylene polyisocyantes having a functionality greater than 2 containing 55 to 85 percent by weight diphenylmethane diisocyanate based on the total weight of the isocyanate mixture with polyester polyols or mixtures of polyester polyols and polyether polyols having a polyester polyol content of more than 60 percent by weight based on the weight of the polyol mixture, and optionally chain extenders, auxiliaries, and additives, in the presence of catalysts and, in particular, water as a blowing agent. The special selection of starting compounds results in the production of flexible polyurethane foams having a high resistance to hydrolysis, high load-bearing capacity, and high energy absorption upon impact.

    PROCESS FOR THE PREPARATION OF ELASTIC POLYURETHANE FLEXIBLE FOAMS USABLE IN COLD-MOLD TECHNIQUES TO PRODUCE MOLDED ARTICLES
    8.
    发明专利
    PROCESS FOR THE PREPARATION OF ELASTIC POLYURETHANE FLEXIBLE FOAMS USABLE IN COLD-MOLD TECHNIQUES TO PRODUCE MOLDED ARTICLES 未知

    公开(公告)号：CA1270093A

    公开(公告)日：1990-06-05

    申请号：CA510519

    申请日：1986-05-30

    Applicant: BASF AG

    Inventor： MUELLER GERHARD ,  MARX MATTHIAS ,  JARRE WOLFGANG ,  BAUMANN EDWIN ,  BUETHE INGOLF

    IPC: C08G18/10 ,  C08G18/32 ,  C08G18/48 ,  C08J9/00

    Abstract: PROCESS FOR THE PREPARATION OF ELASTIC POLYURETHANE FLEXIBLE FOAMS USABLE IN COLD-MOLD TECHNIOUES TO PRODUCE MOLDED ARTICLES The invention is a process for the preparation of elastic polyurethane flexible foams having densities from approximately 25 to 60 kg/m3, and producing molded articles in closed molds at temperatures from 25 to 80.degree.C, comprising reacting A) an organic polyisocyanate prepolymer having an isocyanate content from 6 to 20 percent by weight prepared by reacting a toluene diisocyanate and/or a diphenylmethane diisocyanate with a di- to tetrafunctional polyether polyol having a hydroxyl number from 20 to 50 and oxyethylene terminal group content of at least 10 to 30 percent by weight B) a mixture of compounds containing reactive hydrogen atoms, comprising a mixture of a) from 55 to 89.5 parts by weight of at least one dito tetrafunctional polyether polyol having a hydroxyl number of from 20 to 80 and less than 10 percent by weight terminal oxyethylene groups, b) from 0.5 to 20 parts by weight of at least one alkanolamine, and c) from 10 to 25 parts by weight water, in the presence of C) a blowing agent, D) a catalyst, and optionally E) auxiliaries and/or additives.

    PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS INVOLVING THE USE OF AROMATIC MONOAMINES
    9.
    发明专利
    PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS INVOLVING THE USE OF AROMATIC MONOAMINES 未知

    公开(公告)号：CA1164149A

    公开(公告)日：1984-03-20

    申请号：CA379129

    申请日：1981-06-05

    Applicant: BASF AG

    Inventor： HORACEK HEINRICH ,  MARX MATTHIAS ,  BUETHE INGOLF ,  JARRE WOLFGANG ,  SCHOEN ERNST

    IPC: C08G18/28 ,  C08G18/14 ,  C08G18/65

    Abstract: PROCESS FOR THE PREPARTIAON OF FLEXIBLE POLYURETHANE FOAMS INVOLVING THE USE OF AROMATIC MONOAMINES The invention relates a process for the preparation of a polyurethane foam by reacting an organic polyisocyanate, polyol, and primary or secondary aromatic monoamine in the presence of a blowing agent and catalyst. The amines are used in quantities of 0.1 part to 4 parts by weight per 100 parts per weight of polyol. The highly elastic polyurethane flexible foams are suited for the manufacture of upholstered furniture, matresses, automobile seats and head supports, as well as particularly for molded foams. The semi-rigid polyurethane foams are used as foam backing of dashboards in automobiles, thermal and sound insulation in buildings and vehicles, and for impact absorption in packaging materials.

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