公开(公告)号：DE59100918D1

公开(公告)日：1994-03-03

申请号：DE59100918

申请日：1991-11-14

Applicant: BASF AG

Inventor： LAUSBERG DIETRICH DR ,  NIKLES ALBERT ,  UHR HERMANN ,  TREMMEL GREGOR ,  AECKERLE ECKHARD ,  DEIMLING AXEL DR

IPC: C02F1/26

公开(公告)号：ES2047977T3

公开(公告)日：1994-03-01

申请号：ES91119427

申请日：1991-11-14

Applicant: BASF AG

Inventor： LAUSBERG DIETRICH DR ,  NIKLES ALBERT ,  UHR HERMANN ,  TREMMEL GREGOR ,  AECKERLE ECKHARD ,  DEIMLING AXEL DR

IPC: C02F1/26

公开(公告)号：FR1445380A

公开(公告)日：1966-07-08

申请号：FR29612

申请日：1965-08-27

Applicant: BASF AG

Inventor： CADUS ANTON ,  KAISER OTTO ,  WEBER REINHOLD ,  BENKER KLAUS ,  UHR HERMANN

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：MY117369A

公开(公告)日：2004-06-30

申请号：MYPI9702436

申请日：1997-06-03

Applicant: BASF AG

Inventor： AUMULLER ALEXANDER ,  SUTORIS HEINZ FRIEDRICH ,  UHR HERMANN

IPC: C07B63/04 ,  C07C7/20 ,  C07C11/02 ,  C07C15/44 ,  C07C15/46 ,  C07C51/50

Abstract: MIXTURES CONTAIN(A) VINYL-CONTAINING MONOMERS, AND(B) AN EFFECTIVE AMOUNT OF A MIXTURE INHIBITING THE PREMATURE POLYMERIZATION OF THE VINYL-CONTAINING MONOMERS DURING THE PURIFICATION OR DISTILLATION AND CONTAINING (I) FROM 0.05 TO 4.5 BY WEIGHT, BASED ON THE TOTAL MIXTURE (B), OF AT LEAST ONE N-OXYL COMPOUND OF A SECONDARY AMINE WHICH CARRIES NO HYDROGEN ATOMS ON THE a-CARBON ATOMS AND (ii) FROM 99.95 TO 95.5 BY WEIGHT, BASED ON THE TOTAL MIXTURE (B), OF AT LEAST ONE NITRO COMPOUND,AND A MIXTURE (B) IS USED FOR INHIBITING THE PREMATURE POLYMERIZATION OF MONOMERS.

公开(公告)号：ID17021A

公开(公告)日：1997-12-04

申请号：ID979718

申请日：1997-06-03

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH ,  AUMULLER ALEXANDER ,  UHR HERMANN

IPC: C07B63/04 ,  C07C7/20 ,  C07C11/02 ,  C07C15/44 ,  C07C15/46 ,  C07C51/50 ,  C07C7/05 ,  C07C11/04

公开(公告)号：GB2289282A

公开(公告)日：1995-11-15

申请号：GB9508655

申请日：1995-04-28

Applicant: BASF AG

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

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

Abstract: In the distillation of styrene in at least one distillation column in the presence of a nitrophenol capable of inhibiting polymerization, the nitrophenol which is added to the feed flowing to the column and which accumulates in the residues at the bottom of the column is recovered by reaction of the residues with ammonia to form the ammonium nitrophenolate, and the nitrophenol is recycled to the column feed in the form of the ammonium nitrophenolate. The contents of the base of the column may be treated with gaseous ammonia and the precipitated ammonium nitrophenolate separated and added, in solid form, to the feed flowing to the column.