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公开(公告)号：ES2131247T3
公开(公告)日：1999-07-16
申请号：ES95116406
申请日：1995-10-18
Applicant: BASF AG
Inventor： SCHERZER DIETRICH DR , HUSEMANN WOLFRAM DR , WITT MICHAEL DR , HAHN KLAUS DR , KAEMPFER KNUT DR , ALICKE GERHARD
IPC: C08F2/18 , C08F2/20 , C08F2/38 , C08F12/08 , C08F255/02 , C08F257/00 , C08F257/02 , C08J9/20 , C08J11/08 , C08L23/06 , C08L25/00 , C08L25/04 , C08L25/06
Abstract: Expandable polystyrene contains up to 40 wt.% recycled polystyrene. It is obtd. by dissolving the recycled material in styrene monomer and polymerising this soln. in aq. suspension, with addn. of finely-divided polyethylene wax (I) and/or a mol.wt. regulator (II) during polymerisation. Pref. the material is treated with 0.05-1.0 wt.% (I) and/or 10-5000 ppm (II). (I) has a Mn of 2000-6000. (II) is dimerised alpha -methylstyrene.
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公开(公告)号：DE19645948A1
公开(公告)日：1998-05-14
申请号：DE19645948
申请日：1996-11-07
Applicant: BASF AG
Inventor： BAUMGAERTEL MICHAEL DR , DEMBEK GERHARD DR , HAHN KLAUS DR , HOLOCH JAN DR , HUSEMANN WOLFRAM DR , KAEMPFER KNUT DR , LAY PETER N , RUECK SWEN , SCHIESL MICHAEL , WITT MICHAEL DR
IPC: C08F257/02 , C08J9/20 , C08F12/08 , C08L25/06
Abstract: The invention concerns a continuous process for preparing expandible styrene polymers by polymerizing styrene in the presence of expanding agents in three stages: a) preparing a solution of polystyrene in styrene; b) dispersing the solution in an aqueous phase; and c) continuously polymerizing out the prepolymer in an aqueous suspension.
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公开(公告)号：AT59006T
公开(公告)日：1990-12-15
申请号：AT84110536
申请日：1984-09-05
Applicant: BASF AG
Inventor： BROECKER FRANZ JOSEF DR , GETTERT HANS DR , KAEMPFER KNUT DR
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公开(公告)号：DE3528598A1
公开(公告)日：1987-02-19
申请号：DE3528598
申请日：1985-08-09
Applicant: BASF AG
Inventor： GETTERT HANS DR , KAEMPFER KNUT DR , SANDER BRUNO DR , MARQUARDT SIEGFRIED , MUELLER K ROBERT DR
Abstract: Wastewaters which contain carbon black and ash and originate from high temperature processes and in which the carbon black is present in a very finely divided state and partially in a colloidal state are treated and disposed of by a process in which the wastewater is treated with calcium carbonate or calcium hydroxide and an organic flocculant and subjected to a two-stage filtration and the resulting filter cake containing carbon black and ash is subjected to an aftertreatment with an aqueous iron salt solution.
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公开(公告)号：DE2255956A1
公开(公告)日：1974-05-22
申请号：DE2255956
申请日：1972-11-15
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：DE2255909A1
公开(公告)日：1974-05-16
申请号：DE2255909
申请日：1972-11-15
Applicant: BASF AG
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公开(公告)号：DE2255877A1
公开(公告)日：1974-05-16
申请号：DE2255877
申请日：1972-11-15
Applicant: BASF AG
Inventor： BROECKER FRANZ JOSEF DR , DETHLEFSEN WINFRIED DR , KAEMPFER KNUT DR , MAROSI LASZLO DR , SCHWARZMANN MATTHIAS DR , TRIEBSKORN BRUNO DR , ZIRKER GUENTER DR
IPC: B01J23/00 , B01J23/08 , B01J23/755 , B01J37/08 , C07B61/00 , C07C1/00 , C07C1/02 , C07C9/04 , C07C67/00 , C10K3/02
Abstract: Gases of various origins which contain carbon monoxide and dioxide and hydrogen, for example the gases obtained by steam reforming or the rich gas process, refinery gases or coal gasification gases are methanized on a nickel catalyst. The object of this reaction is to obtain methane or gases which can be substituted for natural gas. To produce the catalyst, the compound Ni6Al2(OH)16.CO3.4H2O is obtained from aqueous solution. The catalyst is obtained from this compound after drying, calcination and subsequent reduction in a stream of hydrogen, whilst maintaining very specific temperature gradients between the drying stage and the calcination stage.
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公开(公告)号：ES2088072T3
公开(公告)日：1996-08-01
申请号：ES92118664
申请日：1992-10-31
Applicant: BASF AG
Inventor： HAHN KLAUS DR , KAEMPFER KNUT DR , HINTZ HANS DR , SCHAEFER ANTHONY DR , RIETHUES MICHAEL DR , WITT MICHAEL DR
IPC: C08J9/12 , C08J9/00 , C08J9/16 , C08J9/18 , C08K5/00 , C08K5/05 , C08K5/06 , C08K5/17 , C08L25/04 , C08L71/00 , C08L71/02
Abstract: The invention relates to expandable styrene polymers containing a) a styrene polymer, b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), and c) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight, where the blowing agent or blowing agent mixture comprises c1) from 10 to 100% by weight of carbon dioxide and c2) from 0 to 90% by weight of at least one further blowing agent. The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.
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公开(公告)号：DE4438376A1
公开(公告)日：1996-05-02
申请号：DE4438376
申请日：1994-10-27
Applicant: BASF AG
Inventor： SCHERZER DIETRICH DR , HUSEMANN WOLFRAM DR , WITT MICHAEL DR , HAHN KLAUS DR , KAEMPFER KNUT DR , ALICKE GERHARD
IPC: C08F2/18 , C08F2/20 , C08F2/38 , C08F12/08 , C08F255/02 , C08F257/00 , C08F257/02 , C08J9/20 , C08J11/08 , C08L23/06 , C08L25/00 , C08L25/04 , C08L25/06 , C08J11/04 , C08L51/06
Abstract: Expandable polystyrene contains up to 40 wt.% recycled polystyrene. It is obtd. by dissolving the recycled material in styrene monomer and polymerising this soln. in aq. suspension, with addn. of finely-divided polyethylene wax (I) and/or a mol.wt. regulator (II) during polymerisation. Pref. the material is treated with 0.05-1.0 wt.% (I) and/or 10-5000 ppm (II). (I) has a Mn of 2000-6000. (II) is dimerised alpha -methylstyrene.
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公开(公告)号：DE3718880A1
公开(公告)日：1988-12-22
申请号：DE3718880
申请日：1987-06-05
Applicant: BASF AG
Inventor： GETTERT HANS DR , KAEMPFER KNUT DR
Abstract: The invention relates to a process for purifying exhaust gases, containing sulphur and/or sulphur compounds, from desulphurisation plants by hydrogenation of the exhaust gases and subsequent removal of the sulphur compounds from the hydrogenated gas by a pressure-swing adsorption method.
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