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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：DK0433878T3
公开(公告)日：1994-10-24
申请号：DK90124026
申请日：1990-12-13
Applicant: BASF AG
Inventor： HINZ WERNER DR , LUTTER HEINZ-DIETER DR , LEPPKES REINHARD DR , HORN PETER DR , DECKER WALTER , HAASE VOLKER
Abstract: The invention relates to a process for the production of flexible, soft polyurethane foams having viscoelastic, structure borne soundproofing properties in a temperature range of from -20 DEG C to +80 DEG C, by reacting a) a polyoxyalkylene-polyol mixture containing ai) a block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9 % by weight, based on the weight of the polyoxypropylene units, of terminally bonded ethylene oxide units, and prepared by anionic polymerisation at elevated temperature of 1,2-propylene oxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8 comprising water and glycerol and/or trimethylolpropane, and polymerisation of ethylene oxide onto the resultant polyoxypropylene adduct, and aii) at least one difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85 % by weight, based on the total weight of polymerised alkylene oxide units, of oxyethylene units, and having a hydroxyl number of from 20 to 80, and b) optionally 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 optionally f) assistants and/or additives, and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.
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公开(公告)号：ES2052146T3
公开(公告)日：1994-07-01
申请号：ES90124074
申请日：1990-12-13
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：DE2932304A1
公开(公告)日：1981-02-26
申请号：DE2932304
申请日：1979-08-09
Applicant: BASF AG
Inventor： NISSEN DIETMAR DIPL CHEM DR , MARX MATTHIAS DIPL CHEM DR , JARRE WOLFGANG DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR , DECKER WALTER
Abstract: Stable melamine-polyoxyalkylene polyether polyol dispersions are prepared by the in situ reduction of melamine particles wherein 90 percent of the melamine particles have a particle size of less than 10 microns. Stabilizers for the melamine-polyol dispersion are selected from the group consisting of (a) silicic acids and silicates, (b) salts of perfluorinated alkyl carboxylic acids having 4 to 20 carbon atoms, salts of alkyl sulfonic acids and perfluorinated alkylsulfonic acids having 4 to 20 carbon atoms and polyperfluoroether polyols having molecular weights of 300 to 6000, and (c) salts of fatty alcohol sulfates having 6 to 30 carbon atoms. These dispersions are useful for the preparation of polyurethane foams.
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公开(公告)号：AT104997T
公开(公告)日：1994-05-15
申请号：AT90124074
申请日：1990-12-13
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：AT14741T
公开(公告)日：1985-08-15
申请号：AT81110344
申请日：1981-12-11
Applicant: BASF AG
Inventor： DECKER WALTER , SCHOEN ERNST DR , GRABHOEFER HERBERT DR , WEYLAND PETER DR
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公开(公告)号：CA1179099A
公开(公告)日：1984-12-04
申请号：CA393707
申请日：1982-01-07
Applicant: BASF AG
Inventor： DECKER WALTER , SCHOEN ERNST , GRABHOEFER HERBERT , WEYLAND PETER
Abstract: A PROCESS FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS EMPLOYING POLYESTER-POLYETHER POLYOL MIXTURES of the Invention The invention concerns a process for the preparation of flexible polyurethane foams having good hydrolytic stability, improved damping, with equal or higher levels of other physical properties and with a high absorption capacity. The foams are prepared by reacting organic polyisocyanates and mixtures of (a) liquid polyester polyols, which are produced by the polycondensation of organic dicarboxcylic acid and a polyol mixture which contains 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and at least one triol, and (b) di- to tetra-functional polyether polyols having molecular weights of 1500 to 6000 in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries, and additives.
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公开(公告)号：CA1152685A
公开(公告)日：1983-08-23
申请号：CA357779
申请日：1980-08-07
Applicant: BASF AG
Inventor： NISSEN DIETMAR , MARX MATTHIAS , JARRE WOLFGANG , SCHOEN ERNST , DECKER WALTER
Abstract: Stable melamine-polyoxyalkylene polyether polyol dispersions are prepared by the in situ reduction of melamine particles wherein 90 percent of the melamine particles have a particle size of less than 10 microns. Stabilizers for the melanine-polyol dispersion are selected from the group eonsisting of a) silicic acids and silicates, b) salts of perfluorinated alkyl carboxylic acids having 4 to 20 carbon atoms, salts of alkyl sulfonic acids and perfluorinated alkylsulfouic acids having 4 to 20 carbon atoms and polyperfluoroether polyols having molecular wights of 300 to 6000, and c) salts of fatty alcohol sulfates having 6 to 30 carbon atoms. These dispersions are useful for the preparation of polyurethane foams.
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公开(公告)号：DE3100524A1
公开(公告)日：1982-08-12
申请号：DE3100524
申请日：1981-01-10
Applicant: BASF AG
Inventor： DECKER WALTER , SCHOEN ERNST DIPL CHEM DR , GRABHOEFER HERBERT DIPL CHEM D , WEYLAND PETER DIPL CHEM DR
Abstract: The invention concerns a process for the preparation of flexible polyurethane foams having good hydrolytic stability, improved damping, with equal or higher levels of other physical properties and with a high absorption capacity. The foams are prepared by reacting organic polyisocyanates and mixtures of (a) liquid polyester polyols, which are produced by the polycondensation of organic dicarboxcylic acid and a polyol mixture which contains 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and at least one triol, and (b) di- to tetra-functional polyether polyols having molecular weights of 1500 to 6000 in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries, and additives.
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公开(公告)号：CA2031909C
公开(公告)日：1998-06-02
申请号：CA2031909
申请日：1990-12-10
Applicant: BASF AG
Inventor： LUTTER HEINZ-DIETER , HINZ WERNER , DECKER WALTER , LEPPKES REINHARD , REICH ERHARD , PETERS REINHARD , HAASE VOLKER , LUGMAYR MICHAEL
IPC: C08G18/48 , C08G18/72 , C08G65/26 , C08G65/28 , C08G101/00 , C08J9/00 , C08L71/02 , C08J9/04 , C08G18/12 , C08G59/14 , C08G18/28
Abstract: Flexible polyurethane foams having low compressive strength and relatively good tensile strength are prepared by reacting a) a block polyoxypropylene-polyoxyethylene-polyol 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 polyoxypropylene-polyoxyethylene-polyol mixtures with bi- and/or trifunctional polyoxypropylenepolyoxyethylene-polyols 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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