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公开(公告)号：DE3885197D1
公开(公告)日：1993-12-02
申请号：DE3885197
申请日：1988-08-06
Applicant: BASF AG
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公开(公告)号：DE19741720A1
公开(公告)日：1999-03-25
申请号：DE19741720
申请日：1997-09-22
Applicant: BASF AG
Inventor： BAUER STEPHAN DR , CZECH ERWIN DR , NEUS MICHAEL
IPC: C08G63/02 , C08G81/02 , C08L25/02 , C08L77/00 , G03G9/087 , C08G63/12 , C08F212/00 , C08G63/127 , C08G63/668 , C08G63/78 , C08G69/44 , C08L25/04
Abstract: Polymer compositions are obtained by preparing prepolymers (A) with a mixture of: (a) 60-999.999 wt. % styrene derivative; (b) 0-40 wt.% monounsaturated comonomer(s); (c) 0-20 wt.% hydroxylated (meth)acrylic derivative(s); and (d) 0.001-20 wt.% cross-linking monomer with 2 or more functional groups undergoing free radical polymerization; then poly condensing a mixture of ( alpha ) 5-95 wt.% prepolymer (A), ( beta ) 0-95 wt.% polyol, polyester and/or polyamide and ( psi ) 5-95 wt.% aliphatic and/or aromatic di- or polycarboxylic acid(s), 1-20 C hydrocarbyl ester(s) and/or anhydride(s). Monomer (a) comprises styrene (derivative) of formula (I): R1, R2, R3 = hydrogen (H), methyl (Me) or ethyl (Et); n = 1 or 2. Comonomers (b) are selected from 1-12 carbon (C) alkyl (meth)acrylates, (meth)acrylonitrile, (meth)acrylamide, optionally N-mono- or disubstituted by 1-4 C alkyl, maleic anhydride or maleamide, optionally N-substituted by 1-4 C alkyl. If no monomer (c) is used, hydroxyl (OH) groups are incorporated in prepolymer (A) using a regulator containing OH groups. An Independent claim is also included for the preparation of the composition in this way.
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公开(公告)号：DE19632480A1
公开(公告)日：1998-02-19
申请号：DE19632480
申请日：1996-08-12
Applicant: BASF AG
Inventor： CZECH ERWIN DR
IPC: G03G9/08 , C08F110/06 , G03G9/087
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公开(公告)号：DE58907434D1
公开(公告)日：1994-05-19
申请号：DE58907434
申请日：1989-06-10
Applicant: BASF AG
Inventor： BREITSCHAFT WALTER DR , CZECH ERWIN DR , MAYER UDO DR , SEYBOLD GUENTHER DR , BRUDER HORST DR , DYLLICK-BRENZINGER RAINER DR
IPC: C07D471/04 , C07D487/04 , G03G9/08 , G03G9/097
Abstract: An electrostatic toner consists of a polymer a charge controlling component and an optional color-giving component, wherein the charge controlling agent component comprises one or more compounds of the formula '(I)', (I) ps where R1 is chlorine or methyl, R2 is C4-C22-alkyl, benzyl or 2-phenylethyl, A THETA is an anion, n is 0, 1 or 2, m is 1 or 2 and r is 1 or 2.
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Patent Agency Ranking
公开(公告)号：DE3672575D1
公开(公告)日：1990-08-16
申请号：DE3672575
申请日：1986-11-27
Applicant: BASF AG
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公开(公告)号：DE59405418D1
公开(公告)日：1998-04-16
申请号：DE59405418
申请日：1994-10-12
Applicant: BASF AG
Inventor： ADEL JOERG DR , CZECH ERWIN DR
Abstract: Blue molybdenum oxide obtainable by oxidative decomposition of molybdenum hexacarbonyl in the gas phase at from 100 to 500 DEG C, and its use for colouring paints and varnishes, printing inks, inks and plastics and for producing toners for electrophotography.
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公开(公告)号：DE4140900A1
公开(公告)日：1993-06-17
申请号：DE4140900
申请日：1991-12-12
Applicant: BASF AG
Inventor： ADEL JOERG DR , MRONGA NORBERT DR , CZECH ERWIN DR
Abstract: Described are particles (I) suitable for use as carrier particles in electrophotographic processes and made up of: a) a magnetic core and b) an envelope consisting of aluminium oxide, chromium oxide, molybdenum oxide, tungsten oxide, silicon oxide, tin oxide or zirconium oxide or a mixture of these oxides. Also described are particles (II) made up of: a) a magnetic core and b) an envelope of titanium oxide and produced by decomposing titanium tetraalcoholates in the gas phase by means of water and/or oxygen in the presence of the moving cores. The invention also concerns the manufacture of the particles and their use in two-component developers for electrophotographic processes.
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