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    3.
    发明专利
    未知

    公开(公告)号：DE4014923A1

    公开(公告)日：1991-11-14

    申请号：DE4014923

    申请日：1990-05-10

    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.

    4.
    发明专利
    未知

    公开(公告)号：AT167206T

    公开(公告)日：1998-06-15

    申请号：AT92117788

    申请日：1992-10-17

    Applicant: BASF AG

    Inventor： HINZ WERNER DR ,  ADAMS STEFAN DR ,  KOEHLER ULRICH DR ,  MALETZKO CHRISTIAN DR ,  VORSPOHL KLAUS DR ,  ZSCHIESCHE RUTH DR

    IPC: C08G18/50 ,  C08G65/26 ,  C08G101/00

    Abstract: The invention relates to highly reactive polyoxyalkylenepolyols prepared by oxalkylation of an initiator molecule containing at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylenepolyols, and to their use for the preparation of compact or cellular, preferably flexible, polyisocyanate polyaddition products.

    Void-free two-part polyurethane adhesive for bonding - by reaction of poly-isocyanate with poly:azo:methine(s) obtd. from aldehyde(s) or ketone(s) and 2-4 functional polyoxyalkylene-polyaminee(
    6.
    发明专利
    Void-free two-part polyurethane adhesive for bonding - by reaction of poly-isocyanate with poly:azo:methine(s) obtd. from aldehyde(s) or ketone(s) and 2-4 functional polyoxyalkylene-polyaminee( 未知

    公开(公告)号：DE4006537A1

    公开(公告)日：1991-09-05

    申请号：DE4006537

    申请日：1990-03-02

    Applicant: BASF AG

    Inventor： VORSPOHL KLAUS DR ,  MATZKE GUENTER DR

    IPC: C08G18/32 ,  C08G18/50 ,  C09J175/04

    Abstract: Two-component adhesives (I) are claimed, which are obtd. by reaction of (a) opt. modified polyisocyanate(s) with (b) poly-azomethine(s) in the presence of (c) auxiliary substances and/or additives; (b) are reaction prods. of polyoxyalkylene-polaymines with functionality 2-4 and mol.wt. 180-10,000 (II) and aldehyde(s) and/or ketone(s) (III). Pref. (b) are polyketimines (IV) obtd. by reaction of (II) (with mol.wt. 220-5500) with (cyclo)aliphatic ketones, pref. mixts. of (II) and (IV) contg. not above 20% prim. amino gps. from (II) and at least 80% ketimine gps. from (IV) as above; (II) are polyoxypropylene-polyoxyethylene-polyamines or polyoxypropylene-polyamines; (b) are used in the form of a mixt. with at least difunctional poly-hydroxy cpds. (V), in which at least 40% of the NCO-reactive gps. are aldimine and/or ketimine gps.; (V) are high-mol. wt. polyoxyalkylene-polyols, high-mol. wt. polyester-polyols or mixts. thereof with low-mol.wt. chain extenders and/or crosslinkers; NCO-reactive gps. are prim. amino and/or OH and aldimine and/or ketimine gps. (at least 40%); (a) contain (i) carbodi-imide and/or urethane gp.-contg. polyisocyanates contg. 33.6-8 wt.% NCO based on 4,4'-MDI or a mixt. thereof with 2,4'-MDI, and/or (ii) an NCO gp.-contg. prepolymer contg. 8-25 wt.% NCO obtd. by reaction of polyoxyalkylene-polyols with functionality 2-4 and mol.wt. 600-6000 with MDI as above; amts. of (a) and (b) are such that the ratio of NCO gps. in (a) to aldimine and/or ketimine gps. or to the sum of NCO-reactive gps. in (b) is (0.8:1)-(1.2:1).

    7.
    发明专利
    未知

    公开(公告)号：DE59209369D1

    公开(公告)日：1998-07-16

    申请号：DE59209369

    申请日：1992-10-17

    Applicant: BASF AG

    Inventor： HINZ WERNER DR ,  ADAMS STEFAN DR ,  KOEHLER ULRICH DR ,  MALETZKO CHRISTIAN DR ,  VORSPOHL KLAUS DR ,  ZSCHIESCHE RUTH DR

    IPC: C08G18/50 ,  C08G65/26

    Abstract: The invention relates to highly reactive polyoxyalkylenepolyols prepared by oxalkylation of an initiator molecule containing at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylenepolyols, and to their use for the preparation of compact or cellular, preferably flexible, polyisocyanate polyaddition products.

    8.
    发明专利
    未知

    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.

    9.
    发明专利
    未知

    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.

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