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公开(公告)号：DE19614441A1
公开(公告)日：1997-10-16
申请号：DE19614441
申请日：1996-04-12
Applicant: BASF AG
Inventor： HINZ WERNER DR , SCHERZER DIETRICH DR , LAUPICHLER LOTHAR DR
IPC: C08G18/18 , C08L75/04 , C08J9/00 , C07C211/35
Abstract: The preparation of polyurethanes comprises reacting (A) optionally modified organic polyisocyanates, (B) high molecular weight compounds containing at least two reactive hydrogen atoms and (C) optional low molecular weight chain extenders or cross-linking agents, in the presence of (D) catalysts, (E) propellants and (F) flame retardants, and optionally in the presence of (G) processing aids and/or additives. Complexes of cyclodextrins and amines are used as (D).
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公开(公告)号：DE4040466C2
公开(公告)日：1995-03-09
申请号：DE4040466
申请日：1990-12-18
Applicant: BASF AG
Inventor： HINZ WERNER DR , LUTTER HEINZ-DIETER DR , LEPPKES REINHARD DR
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公开(公告)号：ES2063212T3
公开(公告)日：1995-01-01
申请号：ES90115345
申请日：1990-08-10
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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公开(公告)号：DE4318962A1
公开(公告)日：1994-12-15
申请号：DE4318962
申请日：1993-06-08
Applicant: BASF AG
Inventor： HINZ WERNER DR , HENN ROLF DR , KEPPELER UWE DR , GUETTES BERND
Abstract: The invention relates to a process for the production of rigid polyurethane foams 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 and optionally f) auxiliaries and/or additives, where the relatively high-molecular-weight compounds containing at least two reactive hydrogen atoms (b) are polyoxyproylene-polyols and/or polyoxyethylene-polyoxypropylene-polyols containing up to 20 % by weight, based on the weight of the alkylene oxide units, of pendant oxyethylene units containing secondary hydroxyl groups, and having a functionality of from 3.8 to 4.1, a hydroxyl number of from 385 to 410 mg of KOH/g, a viscosity of from 1,700 to 2,400 mPas at 25@C, preparable by anionic polymerisation of 1,2-propylene oxide and, where appropriate, ethylene oxide onto an initiator (starter) molecule mixture comprising sucrose, pentaerythritol and diethylene glycol.
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公开(公告)号：DK0433822T3
公开(公告)日：1994-04-18
申请号：DK90123652
申请日：1990-12-08
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , HINZ WERNER DR
IPC: C07C69/63 , C07C69/635 , C07C69/65 , C07C69/76 , C07C69/78 , C07C271/14 , C07C271/24 , C07C271/28 , C08G65/32 , C08G65/332 , C08G65/333 , C08G65/337 , C08J9/00 , C08K5/10 , C09K23/42
Abstract: The invention relates to novel esters which contain fluorocarbon and oxypropylenealkyl ether groups in bonded form, of the formulae in which: Rf is a linear or branched, partially fluorinated or perfluorinated alkyl group having 2 to 10 carbon atoms, a partially fluorinated or perfluorinated cycloalkyl group having 4 to 8 carbon atoms, a perfluorophenyl group or a perfluoroalkylphenyl group having 1 to 6 carbon atoms in the perfluoroalkyl radical, R is a linear or branched alkyl group having 1 to 4 carbon atoms and n is an integer from 2 to 70, to storage-stable, blowing agent-containing emulsions which contain at least one partially fluorinated or perfluorinated (cyclo)aliphatic hydrocarbon having 3 to 8 C atoms and/or sulphur hexafluoride, at least one optionally modified organic polyisocyanate or a higher-molecular-weight reactive hydrogen compound and at least one of the abovementioned carboxylates or carbamidates, and to the use of these emulsions for the preparation of cellular plastics by the polyisocyanate polyaddition process.
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Patent Agency Ranking
公开(公告)号：DE59003792D1
公开(公告)日：1994-01-20
申请号：DE59003792
申请日：1990-12-08
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , HINZ WERNER DR
IPC: C07C69/63 , C07C69/635 , C07C69/65 , C07C69/76 , C07C69/78 , C07C271/14 , C07C271/24 , C07C271/28 , C08G65/32 , C08G65/332 , C08G65/333 , C08G65/337 , C08J9/00 , C08K5/10 , C09K23/42
Abstract: The invention relates to novel esters which contain fluorocarbon and oxypropylenealkyl ether groups in bonded form, of the formulae in which: Rf is a linear or branched, partially fluorinated or perfluorinated alkyl group having 2 to 10 carbon atoms, a partially fluorinated or perfluorinated cycloalkyl group having 4 to 8 carbon atoms, a perfluorophenyl group or a perfluoroalkylphenyl group having 1 to 6 carbon atoms in the perfluoroalkyl radical, R is a linear or branched alkyl group having 1 to 4 carbon atoms and n is an integer from 2 to 70, to storage-stable, blowing agent-containing emulsions which contain at least one partially fluorinated or perfluorinated (cyclo)aliphatic hydrocarbon having 3 to 8 C atoms and/or sulphur hexafluoride, at least one optionally modified organic polyisocyanate or a higher-molecular-weight reactive hydrogen compound and at least one of the abovementioned carboxylates or carbamidates, and to the use of these emulsions for the preparation of cellular plastics by the polyisocyanate polyaddition process.
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公开(公告)号：DE4134693A1
公开(公告)日：1993-04-22
申请号：DE4134693
申请日：1991-10-21
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.
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公开(公告)号：DE4040466A1
公开(公告)日：1992-07-02
申请号：DE4040466
申请日：1990-12-18
Applicant: BASF AG
Inventor： HINZ WERNER DR , LUTTER HEINZ-DIETER DR , LEPPKES REINHARD DR
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公开(公告)号：DE3942329A1
公开(公告)日：1991-06-27
申请号：DE3942329
申请日：1989-12-21
Applicant: BASF AG
Inventor： LUTTER HEINZ-DIETER DR , HINZ WERNER DR , DECKER WALTER , LEPPKES REINHARD DR , REICH ERHARD DR , PETERS REINHARD DR , HAASE VOLKER , LUGMAYR MICHAEL
Abstract: Flexible polyurethane foams having low compressive strength and relatively good tensile strength are prepared by reacting a) a block polyoxypropylenepolyoxyethylenepolyol mixture which has a hydroxyl number of from 14 to 65, contains from 2 to 9% by weight, based on the weight of the polyoxypropylene units, of ethylene oxide units bonded in the terminal position and is prepared by anionic polymerization of the alkylene oxides with an initiator mixture having an average functionality of from 2.3 to 2.8 and consisting of water and glycerol and/or trimethylolpropane, or a mixture of these block polyoxypropylenepolyoxyethylenepolyol mixtures with bi- and/or trifunctional polyoxypropylenepolyoxyethylenepolyols having a hydroxyl number of from 20 to 70, and b) if required, low molecular weight chain extenders with c) organic and/or modified organic polyisocyanates in the presence of d) catalysts, e) blowing agents, preferably water, and if required, f) assistants and/or additives.
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公开(公告)号：DE3941871A1
公开(公告)日：1991-06-20
申请号：DE3941871
申请日：1989-12-19
Applicant: BASF AG
Inventor： VOLKERT OTTO DR , HINZ WERNER DR
IPC: C07C69/63 , C07C69/635 , C07C69/65 , C07C69/76 , C07C69/78 , C07C271/14 , C07C271/24 , C07C271/28 , C08G65/32 , C08G65/332 , C08G65/333 , C08G65/337 , C08J9/00 , C08K5/10 , C09K23/42
Abstract: The invention relates to novel esters which contain fluorocarbon and oxypropylenealkyl ether groups in bonded form, of the formulae in which: Rf is a linear or branched, partially fluorinated or perfluorinated alkyl group having 2 to 10 carbon atoms, a partially fluorinated or perfluorinated cycloalkyl group having 4 to 8 carbon atoms, a perfluorophenyl group or a perfluoroalkylphenyl group having 1 to 6 carbon atoms in the perfluoroalkyl radical, R is a linear or branched alkyl group having 1 to 4 carbon atoms and n is an integer from 2 to 70, to storage-stable, blowing agent-containing emulsions which contain at least one partially fluorinated or perfluorinated (cyclo)aliphatic hydrocarbon having 3 to 8 C atoms and/or sulphur hexafluoride, at least one optionally modified organic polyisocyanate or a higher-molecular-weight reactive hydrogen compound and at least one of the abovementioned carboxylates or carbamidates, and to the use of these emulsions for the preparation of cellular plastics by the polyisocyanate polyaddition process.
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