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公开(公告)号：DE2355840A1
公开(公告)日：1975-05-22
申请号：DE2355840
申请日：1973-11-08
Applicant: BASF AG
Abstract: A process for the manufacture of improved magnetic discs by applying a thin layer of a fluid dispersion of magnetic pigments and optional non-magnetic pigments in a binder mixture to a non-magnetic rigid base and curing the magnetic layer which has been applied. The binder consists essentially of from 60 to 90 percent by weight of a solid curable polycondensate of 2,2-bis-(4-hydroxyphenyl)-propane and epichlorohydrin having an epoxide equivalent weight of approximately 400 to 5,000, from 5 to 25 percent by weight of a curable allyloxybenzene-formaldehyde condensate of the resol type with free or alcohol-etherified methylol groups and a molecular weight of less thah 1,000, and from 5 to 30 percent by weight of a curable melamine-formaldehyde condensate with more than two alcohol-etherified methylol groups and a molecular weight of less than 3,000, from 10 to 35 percent by weight of the above epoxy resin being replaced by a reaction product of an epoxy group-containing polycondensate of 2,2-bis-(4-hydroxyphenyl)-propane and epichlorohydrin with the N-methylolamide of a copolymerizable olefinically unsaturated carboxylic acid of 3 to 5 carbon atoms. The magnetic layers thus produced adhere firmly to the base, can be readily ground and polished and are particularly resistant to wear when the magnetic discs are in use.
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公开(公告)号：DE3215909A1
公开(公告)日：1983-11-03
申请号：DE3215909
申请日：1982-04-29
Applicant: BASF AG
Inventor： NISSEN DIETMAR DIPL CHEM DR , SCHOENLEBEN WILLIBALD DIPL CHE , MARX MATTHIAS DIPL CHEM DR , ILLERS KARL HEINZ DIPL PHYS DR , SIMAK PETR DIPL CHEM DR
Abstract: 1. A process for the preparation of molded parts based on polyurea elastomers by reacting a) organic polyisocyanates, b) polyether polyamines, and c) alkyl-substituted aromatic diamines, wherein the polyether polyamines (b) used are polyoxyalkylene polyamines having a molecular weight of from 1 100 to 16 000 and the general structural formulae H2 N-(R**2 O)x -R**1 -NH2 H2 N-R**1 -(OR**2 )x -NH-(R**2 O)y -R**1 -NH2 see diagramm : EP0093334,P12,F1 and/or see diagramm : EP0093334,P12,F2 where R**1 and R**2 are identical or different optionally substituted alkylene radicals of 2 to 10 carbon atoms, the alkylene radicals R**2 of the alkoxy groups also being identical or different, T is a radical or a trifunctional initiator molecule for the alkylene oxide polymerization, which radical does not contain any reactive hydrogen atoms, and x, x', z, z', y and y' are identical or different integers greater than 0, and the alkyl-substituted aromatic diamines (c) used are meta-phenylene diamines of the formulae see diagramm : EP0093334,P12,F3 and/or see diagramm : EP0093334,P12,F4 where R**3 is a branched alkyl of up to 10 carbon atoms, in which the branching point is at the C1 -carbon atom, and R**4 and R**5 are identical or different alkyls of 1 to 3 carbon atoms, and/or diaminodiphenyl-methanes of the formula see diagramm : EP0093334,P13,F1 where R**6 , R**7 , R**8 and R**9 are identical or different and each denote methyl, ethyl, propyl, isopropyl, sec-butyl and tert-butyl, but at least one of the radicals is isopropyl or sec-butyl.
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公开(公告)号：DE3112123A1
公开(公告)日：1982-10-07
申请号：DE3112123
申请日：1981-03-27
Applicant: BASF AG
Inventor： HORN PETER DIPL CHEM DR , HESSE ANTON DIPL CHEM DR , HECKMANN WALTER DIPL CHEM DR , LEBERT ULRICH DIPL CHEM DR , GUTHMANN ALFRED DIPL CHEM DR , MARX MATTHIAS DIPL CHEM DR
Abstract: The subject invention relates to storage stable dispersions comprising certain aromatic polyesters dispersed in certain polyhydroxyl compounds and their process of preparation. The dispersions are useful for the preparation of polymers containing urethane and/or isocyanurate linkages.
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公开(公告)号：DE3003963A1
公开(公告)日：1981-08-13
申请号：DE3003963
申请日：1980-02-04
Applicant: BASF AG
Inventor： HORACEK HEINRICH DR , BARL MANFRED DIPL CHEM DR , WURMB ROLF DIPL CHEM DR , MARX MATTHIAS DIPL CHEM DR
IPC: C08G18/18
Abstract: A process for making a polyurethane which comprises reacting an organic polyisocyanate with a higher molecular weight organic polyhydroxyl compound in the presence of a catalyst having the following formula: wherein X is sulfur or NH and n is a whole number from 2 to 6. Also used is a catalyst which is a combination of the above-mentioned catalyst and an organic tin compound.
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Patent Agency Ranking
公开(公告)号：DE2943689A1
公开(公告)日：1981-05-14
申请号：DE2943689
申请日：1979-10-30
Applicant: BASF AG
Abstract: Polymer polyol dispersions are prepared by reacting polyepoxides with epoxide resin hardeners in the presence of polyester and polyoxyalkylene polyether polyols.
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公开(公告)号：DE2901335A1
公开(公告)日：1980-07-31
申请号：DE2901335
申请日：1979-01-15
Applicant: BASF AG
Inventor： BEUCKELAER GERARD DE DIPL ING , JARRE WOLFGANG DIPL CHEM DR , WURMB ROLF DIPL CHEM DR , MARX MATTHIAS DIPL CHEM DR
IPC: B01D17/02 , B01D17/022 , B01J20/26 , C02F1/28 , C02F1/40 , C02F1/68 , C08G18/28 , C08G18/36 , C08G18/38 , C08G18/69 , B01D15/00 , E03F5/16
Abstract: A process for separating hydrophobic organic liquids from water comprising passing a mixture of water and hydrophobic organic liquids through a column-like vessel which is filled with a hydrophobic, preferably open-celled, polyurethane foam, said foam having a high absorption capacity, permits high flow-through velocities even as the foam becomes covered and saturated with the hydrophobic organic liquids, is reversibly deformable, and can be reused.
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公开(公告)号：DE2837770A1
公开(公告)日：1980-03-13
申请号：DE2837770
申请日：1978-08-30
Applicant: BASF AG
Inventor： OHLINGER RAINER DIPL CHEM DR , FALKENSTEIN GEORG DIPL CHEM DR , WURMB ROLF DIPL CHEM DR , MARX MATTHIAS DIPL CHEM DR
IPC: C07C265/12 , C07C265/14 , C08G18/02 , C08G18/79
Abstract: Storage-stable, liquid carbodiimide-modified polyisocyanates are prepared by condensation of polyisocyanates in the presence of catalytic amounts of phospholine, phospholidine, phospholine oxides and/or phospholidine oxides, said condensation terminated and the products stabilized by means of perchloric acid or trifluoromethanesulfonic acid.
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公开(公告)号：DE2737755A1
公开(公告)日：1979-03-08
申请号：DE2737755
申请日：1977-08-22
Applicant: BASF AG
IPC: C09D5/44 , C09D133/02 , C09D157/02 , C09D3/76 , C09D3/30 , C09D3/733 , C09D3/81 , C09D5/40
Abstract: Lacquer binder is based on a mixt. of 10-90 (wt.)% anionic film-forming binder(s), opt. contg. max. 40% thermosetting phenolic and/or aminoplastics precondensate, and 90-10% hydrocarbon oil(s), which is liq. at room temp. and has a viscosity of 300-45,000 mPas at 25 degrees C. The binder is specified for use for anodic electro-dip lacquering of conducting articles in its water-dilutable form, obtd. by addn. of NH3 or a water-soluble volatile amine. It can also be used as adjesive, e.g. in the prodn. of chipboard, and as important impregnant for finishing fibrous materials, e.g. organic or ceramic textiles. It forms stable baths and coating with superior properties, e.g. corrosion protection and baking temp. The current consumption is reduced and the throw much better, whilst the coatings are more uniform and insensitive to sec. impurities (flying dust etc.) before and during baking.
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公开(公告)号：DE2557562A1
公开(公告)日：1977-06-30
申请号：DE2557562
申请日：1975-12-20
Applicant: BASF AG
Inventor： PETERS KARL-CLEMENS DIPL CHEM , MARX MATTHIAS DIPL CHEM DR , DIEFENBACH HORST DIPL CHEM DR
IPC: C08C19/20 , C08C19/30 , C09D115/00 , C08F8/36
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