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    101.
    发明专利
    未知

    公开(公告)号：DE59209107D1

    公开(公告)日：1998-02-12

    申请号：DE59209107

    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.

    102.
    发明专利
    未知

    公开(公告)号：ES2106047T3

    公开(公告)日：1997-11-01

    申请号：ES91119992

    申请日：1991-11-23

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  REICH ERHARD DR ,  ADAMS STEFAN DR ,  CHAKRABARTI SARBANANDA

    IPC: B32B5/20 ,  B32B27/28 ,  C08G18/68

    Abstract: The invention relates to a composite element comprising A) at least one top layer of polyvinyl chloride or a polyvinyl chloride-containing polymer mixture, and B) a preferably semi-rigid or rigid polyurethane foam, where the top layer (A) or the polyurethane foam (B) or both constituents (A) and (B) contain units of an alpha , beta -olefinically unsaturated polyester having a molecular weight factor of from 150 to 3000 per double bond, to a process for the production of composite elements of this type, and to liquid, urethane group-containing polyisocyanate mixtures based on diphenylmethane diisocyanates and higher homologues thereof and alpha , beta -olefinically unsaturated polyesters for the preparation of polyurethane foams (B).

    103.
    发明专利
    未知

    公开(公告)号：DE59207363D1

    公开(公告)日：1996-11-21

    申请号：DE59207363

    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

    104.
    发明专利
    未知

    公开(公告)号：DE59206854D1

    公开(公告)日：1996-09-05

    申请号：DE59206854

    申请日：1992-11-20

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  MUELLER ULRICH DR ,  HOELDERICH WOLFGANG PROF DR ,  TADDEY RUDOLF ,  TINTELNOT DIETER ,  SCHUSTER LUDWIG DR

    IPC: B65D6/14 ,  C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C08G18/66 ,  C08J9/00 ,  B65D1/12 ,  C08J9/02 ,  C08J9/34 ,  C08K3/04 ,  C08K3/36 ,  C08K7/24 ,  C08L75/00

    Abstract: The invention relates to a process for the preparation of chlorofluorocarbon-free (CFC-free), elastomeric, semi-rigid or rigid mouldings containing urethane groups or urethane and urea 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 microporous activated charcoal and/or a microporous carbon molecular sieve, which preferably has a mean pore diameter with more than 40% in the range from 0.3 to 3 nm, a pore volume of from 0.20 to 1.4 ml/g and a BET surface area of from 500 to 2500 m /g or greater, and optionally further additives and g) auxiliaries, in a closed mould with compaction.

    106.
    发明专利
    未知

    公开(公告)号：DE58906989D1

    公开(公告)日：1994-03-24

    申请号：DE58906989

    申请日：1989-11-06

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  REHMER GERD DR ,  LUTTER HEINZ-DIETER DR ,  RAMLOW GERHARD DR ,  HINZ WERNER DR ,  SCHMIDT HANS ULRICH

    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) 0.05 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.

    107.
    发明专利
    未知

    公开(公告)号：DE4034082A1

    公开(公告)日：1992-04-30

    申请号：DE4034082

    申请日：1990-10-26

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  HOELDERICH WOLFGANG DR ,  TADDEY RUDOLF ,  TINTELNOT DIETER

    IPC: B29C45/00 ,  B29C44/00 ,  B29K75/00 ,  B29L31/56 ,  C08G18/00 ,  C08G18/08 ,  C08G101/00 ,  C08J9/00 ,  C08J9/02 ,  C08J9/34 ,  C08K7/26 ,  C08L75/00

    Abstract: The invention relates to a process for the production of soft-elastic mouldings which contain urethane groups and are free from chlorofluorocarbons (CFCs), and have 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) crystalline, microporous molecular sieves having a cavity diameter and cavity entrance aperture of less than 1.3 nm, comprising metal oxides or metal phosphates and optionally further additives, and g) assistants, in a closed mould with compaction, expediently by reaction injection moulding (RIM).

    109.
    发明专利
    未知

    公开(公告)号：DE3927244A1

    公开(公告)日：1991-02-21

    申请号：DE3927244

    申请日：1989-08-18

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  HINZ WERNER DR ,  HECKMANN WALTER DR ,  RAMSTEINER FALKO DR ,  GEROLD FRIEDRICH

    IPC: A61L31/00 ,  A61L2/07 ,  A61L27/18 ,  A61L27/34 ,  A61L27/44 ,  B01D63/02 ,  B01D65/00 ,  C08G18/10 ,  C08G18/12 ,  C08G18/48 ,  C08G18/66 ,  C08G18/72 ,  C08G18/76

    Abstract: The present invention relates to transparent essentially non-cellular polyurethane casting compositions that are sterilizable with superheated steam which are prepared by reacting: (A) modified diphenylmethane diisocyanates (A) liquid at 23 DEG C. obtained by reacting (A1) 4,4'-diphenylmethane diisocyanate or (A2) 2,4'-diphenylmethane diisocyanate or (A3) a diphenylmethane diisocyanate mixture with (A4) at least one polyoxypropylene polyol and/or (A5) at least one polyoxypropylene polyoxyethylene polyol containing 1 to 80 weight percent of ethylene oxide units whereby (A4) and (A5) have a functionality of 4 to 8 and a hydroxyl number of 150 to 500 and are obtained while using sucrose and/or preferably sorbitol as initiator molecules (A6) a mixture of (A4) and/or (A5) and at least one polyoxypropylene polyol and/or polyoxyethylene polyol initiated with glycerine and/or trimethylolpropane in a NCO:OH group ratio of 2.5:1 to 15:1 with (B) at least one compound having at least reactive hydrogen atoms which preferably contains no primary, secondary or tertiary amino groups in bonded form in the presence of or absence of (C) catalysts. The present invention also relates to a process for the preparation of polyurethane casting compositions and their use for medical-technical articles.

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