公开(公告)号：CA2256379C

公开(公告)日：2008-03-18

申请号：CA2256379

申请日：1997-11-28

Applicant: BASF AG

Inventor： UHR HERMANN ,  MERGER ROLAND ,  MITULLA KONRAD ,  KESSEL KNUT ,  SCHRODER JURGEN ,  SUTORIS HEINZ FRIEDRICH

IPC: C07C7/20 ,  C07F15/02 ,  C07B63/04 ,  C07C15/46 ,  C07C51/50 ,  C07C57/075 ,  C07C67/62 ,  C07C69/15 ,  C07C69/54 ,  C07C231/22 ,  C07C233/03 ,  C07C253/32 ,  C07C255/08 ,  C07D201/18 ,  C07D207/267 ,  C07D223/10 ,  C08F2/40 ,  C08F4/00

Abstract: The invention concerns substance mixtures containing: (A) compounds containi ng vinyl groups; (B) an active amount of a mixture which inhibits premature polymerization of the compounds containing vinyl groups and contains: (i) at least one N-oxyl compound of a secondary amine which does not carry any hydrogen atoms on the .alpha.-carbo n atoms; and (ii) at least one iron compound; (C) optionally nitro compounds; and (D) optionally co-stabilizers. The invention further concerns a process for inhibiting the premature polymerization of compounds (A) containing vinyl groups, and the use of mixture (B), optionall y mixed with nitro compounds (C) and/or co-stabilizers (D), for inhibiting the premature polymerization of radically polymerizable compounds and for stabilizing organic materials against the harmful effect of radicals.

公开(公告)号：DE10316266A1

公开(公告)日：2004-10-28

申请号：DE10316266

申请日：2003-04-08

Applicant: BASF AG

Inventor： DESBOIS PHILIPPE ,  GRAMMATIS ZAFIRIOS ,  LOTH WOLFGANG ,  WALTER HANS-MICHAEL ,  KOCH JUERGEN ,  SUHM JUERGEN ,  MITULLA KONRAD ,  SCHWITTAY CLAUDIUS

IPC: C08F12/04 ,  C08F36/04 ,  C08F297/04 ,  C08F2/44 ,  C08F2/04 ,  C08F212/08 ,  C08F236/02 ,  C08F297/00 ,  C08J5/00

Abstract: Production of homo- or co-polymers from styrene and/or diene monomers by anionic polymerization followed by degassing and addition of a mineral oil additive is such that at least a part of the mineral oil is first added after the degassing step.

公开(公告)号：AU2003253320A1

公开(公告)日：2004-03-19

申请号：AU2003253320

申请日：2003-07-25

Applicant: BASF AG

Inventor： KNOLL KONRAD ,  DARDIN ULRIKE ,  DESBOIS PHILIPPE ,  MITULLA KONRAD ,  NAEGELE PAUL

IPC: C08L53/02 ,  C08K5/00 ,  C08K5/13 ,  C08K5/134 ,  C08K5/1535 ,  C08K5/524

Abstract: The invention relates to thermoplastic moulded masses containing, a) at least one block copolymer (A), comprising, with relation to (A), a1) 50 to 90 wt. % of at least one styrol monomer, a2) 10 to 50 wt. % of at least one diene monomer, with the following as stabilisers, relative to the moulded mass, b) 0.001 to 0.18 wt. % of at least one benzofuranone derivative (B), c) 0.05 to 1 wt. % of at least one organic phosphite (C), and d) 0.1 to 0.3 wt. % of at least one stabiliser compound (D), selected from sterically hindered phenols and aromatic amines.

公开(公告)号：DE50003637D1

公开(公告)日：2003-10-16

申请号：DE50003637

申请日：2000-02-25

Applicant: BASF AG

Inventor： MITULLA KONRAD ,  SUTORIS FRIEDRICH

IPC: B01D3/32 ,  C07B63/04 ,  C07C7/05 ,  C07C7/20 ,  C07C15/46

Abstract: The invention relates to a method for the continuous recovery of styrene from a mixture containing same, by distillation of the mixture in a cascade of n distillation columns. According to said method, (i) an inflow containing a stabilizer system is fed into the first column and/or is placed into at least one of the distillation columns positioned upstream of the nth distillation column, whereby said stabilizer system comprises N-oxyl radicals; (ii) in the bottom of the nth distillation column a high-boiling fraction containing the stabilizer system and boiling at a higher temperature than styrene is concentrated; (iii) a partial flow of the high-boiling fraction is recycled and placed into at least one distillation column positioned upstream of the nth distillation column; and (iv) the remainder of the high-boiling fraction is withdrawn from the process.

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：CZ9904615A3

公开(公告)日：2000-06-14

申请号：CZ461599

申请日：1998-06-04

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH ,  MITULLA KONRAD ,  DUPUIS JACQUES ,  KALIBA CLAUS

IPC: C07B63/04 ,  C07C7/20 ,  C09K15/30

公开(公告)号：CZ461599A3

公开(公告)日：2000-06-14

申请号：CZ461599

申请日：1998-06-04

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH ,  MITULLA KONRAD ,  DUPUIS JACQUES ,  KALIBA CLAUS

IPC: C07B63/04 ,  C07C7/20 ,  C09K15/30

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.