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    64.
    发明专利
    未知

    公开(公告)号：ES2181738T3

    公开(公告)日：2003-03-01

    申请号：ES95116222

    申请日：1995-10-14

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  JUNG LUDWIG ,  LARBIG HARALD DR ,  LEBKUCHER ROLF DR ,  LEHR GERHARD

    IPC: C08G18/50 ,  C08G65/26

    Abstract: The prodn. of polyurethane (PU) foam comprises reacting (a) polyisocyanate(s); with (b) high-mol. wt. polyol(s) with at least two reactive H atoms, comprising (B1) polyoxyalkylene-polyol(s) with an OH no. of 30-500, obtd. by alkoxylating N,N'-bis(3-aminopropyl)-ethylenediamine, tripropylene-tetramine and/or tetrapropylene-pentamine with alkene oxide(s); and opt. (c) low-mol wt. chain extenders and/or crosslinkers; in the presence of (d) blowing agents. Also claimed are polyols (b1) obtd. as above.

    66.
    发明专利
    未知

    公开(公告)号：ES2110460T3

    公开(公告)日：1998-02-16

    申请号：ES92117083

    申请日：1992-10-07

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  HINZ WERNER DR ,  KNOBLAUCH GEORG ,  RAMSTEINER FALKO DR ,  KNORR GOTTFRIED DR

    IPC: A61L29/00 ,  A61F2/00 ,  A61L27/34 ,  A61M5/00 ,  B01D63/02 ,  C08G18/02 ,  C08G18/10 ,  C08G18/12 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08G18/76

    Abstract: The invention relates to transparent, autoclavable, non-cytotoxic, essentially compact polyurethane embedding compositions which are prepared by reacting a) modified diphenylmethane diisocyanates with b) compounds with at least two reactive hydrogens, which contain or are composed of b1) at least one polyether-polyol with an average functionality of from 3 to 8, a hydroxyl number of from 200 to 1000 and an alkali metal ion content of from 150 to 1200 ppm or, preferably, a mixture of (b1) and castor oil and/or at least one polyetherpolyol (b2) with a functionality of from 2 to 3, a hydroxyl number of from 90 to 200 and an alkali metal ion content of less than 10 ppm in the presence or absence of c) catalysts and to a process for preparing the polyurethane embedding compositions and to the use thereof for articles used in medicine.

    67.
    发明专利
    未知

    公开(公告)号：DE19546097A1

    公开(公告)日：1997-06-12

    申请号：DE19546097

    申请日：1995-12-11

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  HESSE ANTON DR ,  RATH HANS PETER DR ,  GREIF NORBERT DR ,  PARTUSCH GEORG ,  BAUMANN EDWIN ,  LARBIG HARALD DR ,  HECKMANN WALTER DR ,  BECKER JOHANNES DR

    IPC: C08J5/04 ,  C08G18/06 ,  C08G18/28 ,  C08G18/66 ,  C08G101/00 ,  C08J5/24 ,  C08J9/00 ,  C08J9/04 ,  C08K5/3415 ,  C08L75/04 ,  C08L75/00 ,  C08K5/20 ,  C08G18/40 ,  C08G18/65 ,  B29C67/20 ,  C07D207/412

    Abstract: The invention relates to a process for preparing self-releasing, compact or cellular moulded bodies optionally containing reinforcing agents and made of polyisocyanate polyaddition products by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and a molecular weight of 500 to 9,000 and optionally c) chain extension and/or cross-linking agents in the presence of d) alkyl and/or alkenyl succinic acid monoamides, -monoamides, poly(alkyl succinic acid)- and/or poly(alkenyl succinic acid)-polyamides, -polyimides, -monoamide monoimides, -polyamide imides, -amide polyimides and- polyamide polyimides or mixtures thereof as internal mould release agents, and also in the presence or absence of e) catalysts, f) blowing agents, g) reinforcing agents, h) auxiliary agents, in an open or closed moulding tool, optionally under compression. The invention also relates to the use of alkyl- and/or alkenyl succinic acid amides and/or imides (d) as internal mould release agents for the preparation of moulded bodies made of polyisocyanate polyaddition products.

    68.
    发明专利
    未知

    公开(公告)号：AT144270T

    公开(公告)日：1996-11-15

    申请号：AT92106987

    申请日：1992-04-24

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  MUELLER ULRICH DR ,  HOELDERICH WOLFGANG PROF DR ,  SATTLER ULF ,  TADDEY RUDOLF ,  TINTELNOT DIETER

    IPC: C08G18/08 ,  C08G18/00 ,  C08G101/00 ,  C08J9/00 ,  C08J9/02 ,  C08J9/10 ,  C08J9/34 ,  C08K3/36 ,  C08L75/00 ,  C08L75/04

    Abstract: The invention relates to a process for the preparation of CFC-free, soft and elastic, semi-rigid or rigid mouldings containing urethane groups and having a cellular core and a compacted peripheral zone with an essentially pore-free, smooth surface, by reacting a) organic and/or modified organic polyisocyanates with b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms and optionally c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence of d) blowing agents, e) catalysts, f) at least one amorphous, microporous silica gel which preferably has a mean pore diameter with more than 40 % in range from 0.1 to 10 nm, a pore volume of from 0.15 to 1.8 ml/g and a BET surface area of from 200 to 900 m /g, and optionally further additives, and g) assistants, in a closed mould with compaction. t

    69.
    发明专利
    未知

    公开(公告)号：DE4437878A1

    公开(公告)日：1996-04-25

    申请号：DE4437878

    申请日：1994-10-22

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  JUNG LUDWIG ,  LARBIG HARALD DR ,  LEBKUECHER ROLF DR ,  LEHR GERHARD

    IPC: C08G18/50 ,  C08G65/26 ,  C08G18/48 ,  C08G18/66 ,  C08G18/08 ,  C08G18/34 ,  C08G18/36

    Abstract: The prodn. of polyurethane (PU) foam comprises reacting (a) polyisocyanate(s); with (b) high-mol. wt. polyol(s) with at least two reactive H atoms, comprising (B1) polyoxyalkylene-polyol(s) with an OH no. of 30-500, obtd. by alkoxylating N,N'-bis(3-aminopropyl)-ethylenediamine, tripropylene-tetramine and/or tetrapropylene-pentamine with alkene oxide(s); and opt. (c) low-mol wt. chain extenders and/or crosslinkers; in the presence of (d) blowing agents. Also claimed are polyols (b1) obtd. as above.

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