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    72.
    发明专利
    未知

    公开(公告)号：DE59800587D1

    公开(公告)日：2001-05-10

    申请号：DE59800587

    申请日：1998-08-25

    Applicant: BASF AG

    Inventor： WETTERLING MONIKA ,  SCHUSTER MARITA ,  GUETTES BERND ,  KUHN SIMONE

    IPC: B60N2/70 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G65/26 ,  C08G65/28

    Abstract: Flexible foams based on polyisocyanate polyaddition products are produced by reacting polyisocyanates with compounds which are reactive toward isocyanates in the presence of catalysts, blowing agents and, if desired, flame retardants, auxiliaries and/or additives, wherein polyether polyalcohols (c) which are obtainable by addition of alkylene oxides onto substances containing active hydrogens are used as substances which are reactive toward isocyanates, where, in a first stage, at least one substance (a) containing 2 or 3 active hydrogens is reacted with at least one alkylene oxide in the presence or absence of catalysts, subsequently at least one substance (b) which contains at least four active hydrogens and, if desired, further catalyst is added to the reaction mixture from the first stage and this mixture is then reacted in a second stage with at least one alkylene oxide.

    73.
    发明专利
    未知

    公开(公告)号：AT200298T

    公开(公告)日：2001-04-15

    申请号：AT98115983

    申请日：1998-08-25

    Applicant: BASF AG

    Inventor： WETTERLING MONIKA ,  SCHUSTER MARITA ,  GUETTES BERND ,  KUHN SIMONE

    IPC: B60N2/70 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G65/26 ,  C08G65/28

    Abstract: Flexible foams based on polyisocyanate polyaddition products are produced by reacting polyisocyanates with compounds which are reactive toward isocyanates in the presence of catalysts, blowing agents and, if desired, flame retardants, auxiliaries and/or additives, wherein polyether polyalcohols (c) which are obtainable by addition of alkylene oxides onto substances containing active hydrogens are used as substances which are reactive toward isocyanates, where, in a first stage, at least one substance (a) containing 2 or 3 active hydrogens is reacted with at least one alkylene oxide in the presence or absence of catalysts, subsequently at least one substance (b) which contains at least four active hydrogens and, if desired, further catalyst is added to the reaction mixture from the first stage and this mixture is then reacted in a second stage with at least one alkylene oxide.

    Production of polyether-polyol prepolymers, used for manufacture of polyurethane products, involves catalyzed reaction of H-functional starters with alkylene oxide to a low content of unsaturated components
    74.
    发明专利
    Production of polyether-polyol prepolymers, used for manufacture of polyurethane products, involves catalyzed reaction of H-functional starters with alkylene oxide to a low content of unsaturated components 未知

    公开(公告)号：DE19908613A1

    公开(公告)日：2000-08-31

    申请号：DE19908613

    申请日：1999-02-27

    Applicant: BASF AG

    Inventor： TREULING ULRICH ,  LARBIG HARALD ,  GUETTES BERND

    IPC: C08G18/48 ,  C09D175/08 ,  C08G18/10 ,  C07C41/03 ,  C07B41/04

    Abstract: In a process for the production of polyether-polyol prepolymers by reacting H-functional starters with alkylene oxide (AO) in presence of catalyst at elevated temperature, the reaction is continued until the content of unsaturated compounds is not more than 0.01 meq/g, and the residual AO content does not exceed 5 wt.% (based on prepolymer). A process for the production of polyether-polyol prepolymers by reacting H-functional starting materials (HFS) with alkylene oxide (AO) in presence of anionic or cationic catalysts and optional H-functional co-initiators and/or inert solvent at 60-160 deg C and 0.1-1.0 MPa, in which reaction is continued until the content of unsaturated compounds is not more than 0.01 meq/g, while the content of residual AO during the reaction does not exceed 5 wt.% (in each case based on prepolymer). Independent claims are also included for: (a) A process as described above, followed by further stage(s) of addition reaction with more AO, optionally after adding more HFS; (b) prepolymers obtained by this process; and (c) polyether-polyols obtained by reacting the prepolymers with more AO, optionally after adding more HFS.

    Isocyanate-reactive compound for preparation of e.g. hard polyurethane foam
    76.
    发明专利
    Isocyanate-reactive compound for preparation of e.g. hard polyurethane foam 未知

    公开(公告)号：DE19827326A1

    公开(公告)日：1999-12-23

    申请号：DE19827326

    申请日：1998-06-19

    Applicant: BASF AG

    Inventor： GUETTES BERND ,  SCHUSTER PETER ,  REICHELT MICHAEL ,  MALOTKI PETER VON

    IPC: C08G18/40 ,  C08G18/48 ,  C08G65/26 ,  C08G65/28 ,  C08G18/42 ,  C08L75/04

    Abstract: Isocyanate-reactive compound with at least 90% sec. OH groups is prepared by reacting triols with propylene- or butylene-oxide. Isocyanate-reactive compound has a hydroxy number of 600-1000, 2.5-3.0 OH groups on average of which 90-100% are sec. groups, is prepared by reacting compounds with three OH groups with propylene oxide or butylene oxide. Independent claims are also included for a mixture of the above compound (i) and a polyester alcohol(s) (ii) with 20-50% sec. OH groups, an average functionality of 1.9-2.5 (2) and an OH number of 200-300 mg KOH/g, the preparation of polyisocyanate polyaddition products by reacting the above compounds or the above mixture with isocyanates in the presence of catalysts, propellants and additives and aids and the obtained polyisocyanate polyaddition products.

    Foamed polyurethanes containing saccharide useful for production of shaped parts
    77.
    发明专利
    Foamed polyurethanes containing saccharide useful for production of shaped parts 未知

    公开(公告)号：DE19824134A1

    公开(公告)日：1999-12-02

    申请号：DE19824134

    申请日：1998-05-29

    Applicant: BASF AG

    Inventor： GUETTES BERND ,  HINZ WERNER ,  HEMPEL RENATE ,  ROTERMUND UDO ,  WETTERLING MONIKA

    IPC: C07H15/04 ,  C08B31/12 ,  C08G18/48 ,  C08G65/26 ,  C08G65/28 ,  C08L75/00

    Abstract: Reaction of acidified saccharide with an alkaline reagent and an alkylene oxide results in surface etherification or partial alkoxylation of the saccharide, whereby cleavage and side reactions are avoided. Combination of the alkoxylation product with sugar-based polyetherpolyol gives foamed polyurethane of increased heat resistance and profile stability on storage and decreased shrinkage. Compact or cellular oligo- and/or polysaccharide containing polyurethane is prepared by reaction of (a) high molecular compounds having at least two reactive H with (b) organic and/or inorganic modified organic di- and/or polyisocyanates; (c) a chain lengthening- and/or crosslinking agent; (d) a propellant; (e) catalysts; and (f) adjuvants. The high molecular compound (a) comprises (wt.%): (a1) saccharide containing compounds (1-100) and (a2) at least one polyol (0-99), relative to the total weight of (a). The saccharide containing compound (a1) comprises (wt.%): (a11) an alkoxylation component (1-99) and (a12) a polyoxyalkylenepolyol (1-99) of an oligo- and/or polysaccharide, relative to the total weight of alkoxylation component (a11), defined and prepared as below. Independent claims are included for: (1) An oligo- and/or polysaccharide alkoxylation component obtained by reaction of (wt.%): (a111) at least one oligo- and/or polysaccharide product (5-70) of pH 3.5-6 with (a112) an alkylene oxide (20-94.9), (a113) an alkali (0.1-10), relative to the total weight of alkoxylation component; (2) an oligo- and/or polysaccharide containing polyurethane prepared as above; a (3) shaped polyurethane parts obtained as above;

    79.
    发明专利
    未知

    公开(公告)号：DE19748142A1

    公开(公告)日：1999-05-06

    申请号：DE19748142

    申请日：1997-10-31

    Applicant: BASF AG

    Inventor： GUETTES BERND ,  LAMPERT KLAUS DR ,  TISCHER GERLINDE ,  BERGER ELKE

    IPC: C08G18/40 ,  C08G18/42 ,  C08G18/68 ,  C08G63/20 ,  C08G63/181 ,  C08G63/52 ,  C08G63/40 ,  C08L67/02

    Abstract: Polyester alcohols (I) are prepared by condensation of: (A) carboxylic acids and/or carboxylic acid derivatives comprising (A1) aromatic and/or araliphatic carboxylic acids having at least 2 carboxyl groups and/or derivatized carboxyl groups (A2) aliphatic multifunctional carboxylic acids having at least 2 carboxyl groups and/or derivatized carboxyl groups and (A3) mono-carboxylic acids and/or mono-carboxylic acid derivatives with; (B) alcohols. Independent claims are included for: (i) a process for the production of polyisocyanate-polyaddition products (II) by reaction of isocyanates with isocyanate reactive compounds, optionally in the presence of propellants, catalysts and/or processing aids and/or additives whereby the isocyanate reactive compound contains (I); and (ii) the polyisocyanate-polyaddition product (II).

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