公开(公告)号：TR9700996T1

公开(公告)日：1998-01-21

申请号：TR9700996

申请日：1996-03-15

Applicant: BASF AG

Inventor： KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

IPC: C07D211/94

公开(公告)号：TR199700996T1

公开(公告)日：1998-01-21

申请号：TR9700996

申请日：1996-03-15

Applicant: BASF AG

Inventor： KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

IPC: C07D211/94

公开(公告)号：NO974336D0

公开(公告)日：1997-09-19

申请号：NO974336

申请日：1997-09-19

Applicant: BASF AG

Inventor： KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

IPC: C07D211/58 ,  C07B63/04 ,  C07D211/94 ,  C07F9/59 ,  C09K15/22 ,  C09K15/30

Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.

公开(公告)号：DE19513838A1

公开(公告)日：1995-11-09

申请号：DE19513838

申请日：1995-04-12

Applicant: BASF AG

Inventor： TREMMEL GREGOR ,  VAES GUIDO ,  ENGLERT KURT ,  UHR HERMANN

IPC: C07C7/05 ,  C07C7/20 ,  C07C15/46 ,  C07B63/04 ,  C07C7/04

Abstract: Process for distn. of styrene in at least one distn. column in the presence of a nitrophenol (I) as polymerisation inhibitor, whereby the (I) is introduced into the feed stream to the column and accumulates in the residue at the base of the column, from where it is recovered in the form of a phenolate by reacting the residue with ammonia, and the (I) is then introduced into the feed stream to the column in the form of the ammonium phenolate.

公开(公告)号：DE3161710D1

公开(公告)日：1984-01-26

申请号：DE3161710

申请日：1981-09-21

Applicant: BASF AG

Inventor： HEIMLICH GUENTHER DR ,  TREMMEL GREGOR ,  LIEB MANFRED

IPC: C07C2/68 ,  C07C2/70 ,  C07C15/073

Abstract: A process for the continuous preparation of ethylbenzene in a heterogeneous-phase reaction by alkylating benzene with ethylene in the presence of a catalyst based on a complex organic aluminum chloride compound and a co-catalyst at an elevated temperature and elevated pressure, with a residence time of from 5 to 60 minutes in one or more reaction zones, the reaction mixture, after completion of the reaction, being fed into a pressure vessel and vigorously mixed therein for from 20 to 60 minutes at from 120 DEG to 160 DEG C.

公开(公告)号：DE3039760A1

公开(公告)日：1982-05-27

申请号：DE3039760

申请日：1980-10-22

Applicant: BASF AG

Inventor： HEIMLICH GUENTHER DIPL CHEM DR ,  TREMMEL GREGOR ,  LIEB MANFRED DIPL ING

IPC: C07C2/68 ,  C07C2/70 ,  C07C15/073

Abstract: A process for the continuous preparation of ethylbenzene in a heterogeneous-phase reaction by alkylating benzene with ethylene in the presence of a catalyst based on a complex organic aluminum chloride compound and a co-catalyst at an elevated temperature and elevated pressure, with a residence time of from 5 to 60 minutes in one or more reaction zones, the reaction mixture, after completion of the reaction, being fed into a pressure vessel and vigorously mixed therein for from 20 to 60 minutes at from 120 DEG to 160 DEG C.

公开(公告)号：DE59608597D1

公开(公告)日：2002-02-21

申请号：DE59608597

申请日：1996-03-15

Applicant: BASF AG

Inventor： KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

IPC: C07D211/58 ,  C07B63/04 ,  C07D211/94 ,  C07F9/59 ,  C09K15/22 ,  C09K15/30

Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.

公开(公告)号：PL322309A1

公开(公告)日：1998-01-19

申请号：PL32230996

申请日：1996-03-15

Applicant: BASF AG

Inventor： KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

IPC: C07D211/58 ,  C07B63/04 ,  C07D211/94 ,  C07F9/59 ,  C09K15/22 ,  C09K15/30

Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.

公开(公告)号：AU5144496A

公开(公告)日：1996-10-08

申请号：AU5144496

申请日：1996-03-15

Applicant: BASF AG

Inventor： KOCH ANDREAS ,  AUMULLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

IPC: C07D211/58 ,  C07B63/04 ,  C07D211/94 ,  C07F9/59 ,  C09K15/22 ,  C09K15/30

Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.

公开(公告)号：CA2211902A1

公开(公告)日：1996-09-26

申请号：CA2211902

申请日：1996-03-15

Applicant: BASF AG

Inventor： MITULLA KONRAD ,  TREMMEL GREGOR ,  KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  HERBST HOLGER

IPC: C07D211/58 ,  C07B63/04 ,  C07D211/94 ,  C07F9/59 ,  C09K15/22 ,  C09K15/30 ,  C11B5/00 ,  C07C21/06 ,  C07C57/07 ,  C07C255/08 ,  C07D401/14 ,  C07D405/14 ,  C07D409/14 ,  C07C7/20 ,  C07D221/20 ,  C07C253/34 ,  C07C17/42 ,  C07C15/46 ,  C07C51/50

Abstract: The invention concerns 4-acylamino piperidin-N-oxyls of the formula: A1B1 wherein A1 stands for hydrogen or an organic group and B1 stands for a group of formula (IIa) in which the substituents have the following meanings: R1-R4 are C1-C4 alkyl (R1 and R2 and R3 and R4 can be bound to a 5- or 6-member ring); R5 is H or C1-C4 alkyl; and R6 is H or C1-C18 alkyl. The compounds in question serve to stabilise organic substances against the harmful effects of radicals, especially in the distillation of radically polymerising monomers such as styrene.