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公开(公告)号:CZ290805B6
公开(公告)日:2002-10-16
申请号:CZ391798
申请日:1997-05-30
Applicant: BASF AG
Inventor: JULIUS MANFRED , RUST HARALD , KRAUSE ALFRED , SIEGEL HARDO , SIEGEL WOLFGANG , WITZEL TOM
IPC: C07D211/58 , C07D211/56 , C07D221/20
Abstract: The present invention relates to purification of raw piperidines of the general formula I, in which Re1 through Re4 represent alkyl containing 1 to 6 carbon atoms, or Re1 and Re2 and/or Re3 and Re4 form together the CHi2-chain containing 2 to 5 carbon atoms, wherein the purification process comprises a first step consisting in removal of compounds with high boiling point and water, if present, from raw piperidines by employing distillation; a second step consisting in addition of 0.01 to 5 percent by weight, based on the weight of the first step product, of a reducing agent; and a third step, in which piperidines are isolated by distillation.
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公开(公告)号:ZA200005814B
公开(公告)日:2002-10-05
申请号:ZA200005814
申请日:2000-10-19
Applicant: BASF AG
Inventor: BREINER ULRIKE , JULIUS MANFRED , NEUBERG RAINER , WEISS ROBERT , WILMS AXEL , HU HARRY Y
Abstract: A process for preparing polyamides comprises polymerizing starting monomers or starting oligomers in the presence of at least one compound of the formula (I)whereR is a functional group R which bears 1-4 identical or different amide-forming groups R ,R is H, C1-C20-alkyl, cycloalkyl, benzyl or OR , where R is H, C1-C20-alkyl, cycloalkyl or benzyl,R , R , R and R are independently C1-C10-alkyl,n is a natural number greater than 1, andthe piperidine derivatives attached to R are identical or different with regard to the substituents, meaning R , R , R , R and R .The polyamides are useful for preparing filaments, fibers, films, sheetlike structures and moldings.
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公开(公告)号:AT218592T
公开(公告)日:2002-06-15
申请号:AT99916829
申请日:1999-03-18
Applicant: BASF AG
Inventor: BREINER ULRIKE , JULIUS MANFRED , NEUBERG RAINER , WEISS ROBERT , WILMS AXEL , HU HARRY Y
Abstract: A process for preparing polyamides comprises polymerizing starting monomers or starting oligomers in the presence of at least one compound of the formula (I)whereR is a functional group R which bears 1-4 identical or different amide-forming groups R ,R is H, C1-C20-alkyl, cycloalkyl, benzyl or OR , where R is H, C1-C20-alkyl, cycloalkyl or benzyl,R , R , R and R are independently C1-C10-alkyl,n is a natural number greater than 1, andthe piperidine derivatives attached to R are identical or different with regard to the substituents, meaning R , R , R , R and R .The polyamides are useful for preparing filaments, fibers, films, sheetlike structures and moldings.
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公开(公告)号:NZ503565A
公开(公告)日:2001-09-28
申请号:NZ50356598
申请日:1998-09-25
Applicant: BASF AG
Inventor: JULIUS MANFRED , SIEGEL HARDO , WITZEL TOM , SIEGEL WOLFGANG
IPC: C07D211/58
Abstract: A method for purifying 2,2,6,6-tetrasubstituted 4-amino-piperidines (Formula I) produced from the corresponding piperidin-4-ones (Formula II), and subsequent distillation. The distilled 2,2,6,6-tetrasubstituted 4-amino-piperidine is reacted with hydrogen in the presence of a hydrating or dehydrating catalyst and the 4-amino piperidine is then separated from the reaction mixture. Wherein; R1 to R4 is C1-6alkyl, R1-R2 and/or R3 and R4 together form a CH2 chain having from 2-5 carbon atoms.
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公开(公告)号:HU0100700A2
公开(公告)日:2001-06-28
申请号:HU0100700
申请日:1999-02-12
Applicant: BASF AG
Inventor: BREINER ULRIKE , ILG OTTO , JULIUS MANFRED
IPC: C08G69/00 , C08G69/48 , C08K5/3435
Abstract: An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded to the backbone polymer chain. The inherently light- and heat-stabilized polyamide may be used to form articles such as, for example, fibers, carpets, yarns, and textile fabrics.
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16.
公开(公告)号:PL342368A1
公开(公告)日:2001-06-04
申请号:PL34236899
申请日:1999-02-12
Applicant: BASF AG
Inventor: ILG OTTO , BREINER ULRIKE , JULIUS MANFRED
IPC: C08G69/00 , C08G69/48 , C08K5/3435
Abstract: An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded to the backbone polymer chain. The inherently light- and heat-stabilized polyamide may be used to form articles such as, for example, fibers, carpets, yarns, and textile fabrics.
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17.
公开(公告)号:EA001211B1
公开(公告)日:2000-12-25
申请号:EA199801029
申请日:1997-05-28
Applicant: BASF AG
Inventor: JULIUS MANFRED , RUST HARALD , KRAUSE ALFRED , SIEGEL HARDO , SIEGEL WOLFGANG , WITZEL TOM
IPC: C07B63/04 , C07D211/58 , C07D211/72 , C07D221/20 , C08K5/3435
Abstract: Способингибированиядимеризациипиперидинас формулой Iвкоторомзаместителиот Rдо Rявляютсяалкильнымирадикаламис числоматомовуглеродаот 1 до 6, Rи Rи/или Rи RпопарносоставляютСН-цепочкис числоматомовуглеродаот 2 до 5, отличающийсятем, чток пиперидинудобавляетсяот 0,001 до 0,2 весовых % восстановителяс общейформулой MXHY, гдеМ -щелочнойметаллили NR, причемзаместители R могутбытькакодинаковыми, таки различнымиалкильнымирадикаламис числоматомовуглеродаот 1 до 4, илиодинэквивалентщелочноземельногометалла, илиодинэквивалентцинка, Хозначаетборилиалюминий, Y означаетН или CN, a m равно 0 или 1. Такжеописанасмесьпиперидина I, восстановителяв количествеот 0,001 до 0,2 весовых %, содержащаяот 1 до 1000 миллионныхдолейдимерапиперидина I иполучениесветостабилизаторовнаосновестерическизатрудненныхаминовизэтойсмеси.
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公开(公告)号:ZA991130B
公开(公告)日:2000-08-14
申请号:ZA991130
申请日:1999-02-12
Applicant: BASF AG
Inventor: ILG OTTO , BREINER ULRIKE , JULIUS MANFRED
Abstract: An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded to the backbone polymer chain. The inherently light- and heat-stabilized polyamide may be used to form articles such as, for example, fibers, carpets, yarns, and textile fabrics.
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公开(公告)号:ES2146471T3
公开(公告)日:2000-08-01
申请号:ES97927060
申请日:1997-05-28
Applicant: BASF AG
Inventor: JULIUS MANFRED , RUST HARALD , KRAUSE ALFRED , SIEGEL HARDO , SIEGEL WOLFGANG , WITZEL TOM
IPC: C07B63/04 , C07D211/58 , C07D211/72 , C07D221/20 , C08K5/3435
Abstract: PCT No. PCT/EP97/02763 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 28, 1997 PCT Pub. No. WO97/46528 PCT Pub. Date Dec. 11, 1997The invention relates to a process for reducing the dimerization of piperidines of the formula I where R1 to R4 are C1- to C6-alkyl, R1 and R2 and/or R3 and R4 together are a CH2 chain having 2 to 5 carbon atoms, which comprises adding to the piperidine from 0.001 to 0.2% by weight of a reducing agent of the formula MXH4-mYm, where M is an alkali metal, NR4, where R are identical or different C1-C4-alkyl groups, or an equivalent of an alkaline earth metal or an equivalent of zinc, X is boron or aluminum, Y is H or CN and m is 0 or 1. The invention also relates to a mixture of piperidines of the formula I, from 0.001 to 0.2% by weight of a reducing agent and from 1 to 1000 ppm of dimers of the piperidines of the formula I, and to the preparation of hindered amine light stabilizers therefrom.
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公开(公告)号:AU716280B2
公开(公告)日:2000-02-24
申请号:AU3170097
申请日:1997-05-30
Applicant: BASF AG
Inventor: JULIUS MANFRED , RUST HARALD , KRAUSE ALFRED , SIEGEL HARDO , SIEGEL WOLFGANG , WITZEL TOM
IPC: C07D211/58 , C07D211/56 , C07D221/20
Abstract: PCT No. PCT/EP97/02822 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 30, 1997 PCT Pub. No. WO97/46529 PCT Pub. Date Dec. 11, 1997A process for purifying crude piperidines of the formula I where R1 to R4 are C1-C6-alkyl, or R1 and R2 and/or R3 and R4 together are a CH2-chain of 2 to 5 carbons, which comprises, in a first step, removing high-boiling substances and, if present, water from the crude piperidines by distillation; in a second step, adding from 0.01 to 5% by weight, based on the product of the first step, as a reducing agent; and, in a third step, isolating the piperidines by distillation.
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