公开(公告)号：JPH1060018A

公开(公告)日：1998-03-03

申请号：JP14438297

申请日：1997-06-03

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  AUMUELLER ALEXANDER DR ,  KOCH ANDREAS DR ,  DECKERS ANDREAS DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  KINGMA AREND JOUKE DR ,  WEBER WILHELM DR

IPC: C08F2/34 ,  C07B63/04 ,  C07C7/20 ,  C07C11/04 ,  C07C51/50 ,  C08F2/38 ,  C08F2/40 ,  C08F10/00 ,  C08F210/02

Abstract: PROBLEM TO BE SOLVED: To enable precipitate formation to be diminished due to too rapid polymerization of the subject monomer during its compression by conducting the compression in the presence of a sterically hindered amine derivative. SOLUTION: An ethylene-based unsaturated monomer is compressed under a pressure of 200-5,000 bar in the absence of any polymerization initiator but in the presence of a sterically hindered amine derivative. In this case, it is preferable that 0.0001-0.1wt.%, based on the monomer, of an N-oxyl compound of e.g. the formula (R is an alkyl, cycloalkyl, aralkyl, etc.) in combination with the amine derivative, the temperature during the compression is 20-140 deg.C, and an auxiliary stabilizer is used.

公开(公告)号：JP2000191558A

公开(公告)日：2000-07-11

申请号：JP36153599

申请日：1999-12-20

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  DECKERS ANDREAS DR ,  WEBER WILHELM DR

IPC: C07B63/04 ,  C07C7/20 ,  C07C11/02 ,  C07C11/04 ,  C08F2/40 ,  C08F2/44 ,  C08F10/00 ,  C08F210/00

Abstract: PROBLEM TO BE SOLVED: To perform a pressure application operation on ethylenic unsaturated monomer more effectively than a conventional method so that sediments formed through early polymerization during pressure application are decreased by applying pressure in the absence of a polymerization initiator and in the presence of a specific nitrosyl compound. SOLUTION: Pressure is applied on an ethylenic unsaturated monomer (suitably, a mixture consisting of ethylene, propylene, butene and/or butadiene; more suitable monomer/comonomer is acrylic acid and/or methacrylic acid or the like) at 200-5000 bar in the presence of a nitrosyl compound of the formula (R1 and R2 are each a 1-4C alkyl or they form a 5-6 membered unsaturated hydrocarbon ring together with carbon atom(s) bound to them; R3 is a 1-4C alky; and R4 is H or a 1-12C alkyl) and in the absence of a polymerization initiator. The final pressure is preferably 1000-4000 bar, and a pressing temperature is preferably 20-140 deg.C. The compound of the formula is used preferably in an amount of 0.00001-1 wt.% based on the amount of the monomer to be pressed.

公开(公告)号：JP2001081461A

公开(公告)日：2001-03-27

申请号：JP2000246074

申请日：2000-08-14

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  WAGENBLAST GERHARD ,  SCHLIEPHAKE VOLKER DR ,  SCHROEDER JUERGEN DR ,  KELLER HARALD ,  JAWOREK THOMAS

IPC: C09K15/08 ,  C07B63/04 ,  C07C7/20 ,  C07C51/50 ,  C07C67/62 ,  C09K15/02 ,  C09K15/04 ,  C09K15/20 ,  C09K15/24 ,  C09K15/30 ,  C09K15/32

Abstract: PROBLEM TO BE SOLVED: To provide an inhibitor composition that can be used to stabilize a free-radical polymerizable compound. SOLUTION: The inhibitor composition comprises (a) at least cone nitroxyl group (derivative), (b) at least one phenol (derivative) and (c) at least one compound having at least one phosphorus atom whose oxidation state is +3. Example: (a) 4-hydroxy-1-oxyl-2,2,6,6-tetramethylpiperidine; (b) H3PO3, and (c) hydroquinone monomethyl ether.

公开(公告)号：DE19738081A1

公开(公告)日：1999-03-04

申请号：DE19738081

申请日：1997-09-01

Applicant: BASF AG

Inventor： FISCHER MICHAEL DR ,  MAC KEE GRAHAM EDMUND DR ,  SUTORIS HEINZ FRIEDRICH DR

IPC: C08L57/00 ,  C08F2/22 ,  C08F2/26 ,  C08F4/00 ,  C08F4/04 ,  C08F4/34 ,  C08F12/08 ,  C08F20/14 ,  C08F20/44 ,  C08F36/04 ,  C08F285/00 ,  C08F291/00 ,  C08F12/00 ,  C08F20/10 ,  C08F22/00

Abstract: The invention relates to a method for producing particulate polymers P by radically initiated aqueous emulsion polymerization, wherein at least one ethylenically unsaturated monomer is emulsified by means of a dispersing agent in an aqueous medium and polymerized by means of a radical polymerization initiator in the presence of a stable N-oxyl radical so that an aqueous polymer dispersion is obtained. According to the inventive method: a) a peroxide, a hydroperoxide and/or an azoic compound are used as a radical polymerization initiator, whose molar solubility at 25 DEG C and 1 bar in water is greater than or the same as the corresponding molar solubility of tert-butyl hydroperoxide in water and whose decomposition temperature in a polymerization medium is

公开(公告)号：DE19638868A1

公开(公告)日：1998-03-26

申请号：DE19638868

申请日：1996-09-23

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  KOCH ANDREAS DR ,  AUMUELLER ALEXANDER DR ,  DUPUIS JACQUES DR ,  NIESSNER MANFRED DR

IPC: C07D233/08 ,  C07B63/04 ,  C07C17/42 ,  C07C21/06 ,  C07C41/46 ,  C07C43/16 ,  C07C69/025 ,  C07C69/07 ,  C07C231/22 ,  C07C233/03 ,  C07D207/267 ,  C07D211/94 ,  C07D213/89 ,  C08F2/40 ,  C08K5/3435 ,  C09K15/30 ,  C07C233/09 ,  C07C41/58 ,  C07D498/10 ,  C07D491/10 ,  C07D493/10 ,  C07C291/04 ,  C07C67/62

Abstract: A monomer composition contains (A) monomers which contain vinyl groups and in which a heteroatom from the group of halogens, nitrogen, oxygen, sulphur or silicium is associated to the vinyl group; and (B) a compound or a mixture of compounds of general formula (II), in which R stands for methyl, ethyl, isopropyl, n-propyl, n-butyl, isobutyl, secondary butyl, tertiary butyl or trimethylsilyl.

公开(公告)号：DE19634470A1

公开(公告)日：1998-03-05

申请号：DE19634470

申请日：1996-08-27

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  AUMUELLER ALEXANDER DR ,  UHR HERMANN

IPC: C07C7/20 ,  C09K15/20 ,  C07C205/23 ,  C07C291/04 ,  C07D211/94 ,  C07D401/04 ,  C07D401/12 ,  C07D401/14 ,  C07D405/12 ,  C07D413/14 ,  C07D498/10 ,  C09K15/30

Abstract: Mixtures of substances, comprising (A) vinyl monomers and (B) a mixture designed to inhibit premature polymerisation of (A) during purification or distillation, containing (i) 0.05-4.5 wt.% sec. amine N-oxide compound(s) with no hydrogens on the alpha -carbon atoms, and (ii) 99.95-95.5 wt.% nitro compound(s). Also claimed is a method for inhibiting premature polymerisation of monomers (A) by adding mixture (B) or its components before or during purification or distillation.

公开(公告)号：ID27329A

公开(公告)日：2001-03-29

申请号：ID20000832

申请日：2000-09-27

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  WAGENBLAST GERHARD DR ,  SCHLIEPHAKE VOLKER DR ,  SCHRODER JURGEN DR ,  KELLER HARALD DR ,  NESTLER GERHARD DR

IPC: C09K15/14 ,  C07B63/04 ,  C07C51/50 ,  C07C57/075 ,  C09K15/24

Abstract: Phosphorus-free inhibitor compositions containing (a) N-oxyl radical(s) and (b) a phenol, optionally substituted with up to three 1-4C alkyl, 2-4C alkenyl or 7-10C aralkyl groups. Phosphorus-free inhibitor compositions (I) containing (a) N-oxyl radical(s) and (b) a compound of formula (X). n = 0-3; R = 1-4C alkyl, 2-4C alkenyl or 7-10C aralkyl. Independent claims are also included for: (i) a method for stabilizing materials containing ethylenic double bond(s) against unwanted polymerisation by adding (I) to the material; (ii) a mixture containing an ethylenically unsaturated compound and an effective amount of (I) as polymerisation inhibitor.

公开(公告)号：DE19727502A1

公开(公告)日：1999-01-07

申请号：DE19727502

申请日：1997-06-27

Applicant: BASF AG

Inventor： FISCHER MICHAEL DR ,  MORRISON BRADLEY ROLAND DR ,  SUTORIS HEINZ FRIEDRICH DR ,  DURANT YVON DR

IPC: C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F4/00 ,  C08F4/04 ,  C08F4/28 ,  C08F4/34 ,  C08F12/08 ,  C08F12/12 ,  C08F20/18 ,  C08F20/44

Abstract: A radical-initiated emulsion polymerisation method for the preparation of an aqueous polymer dispersion, containing at least one compound with an ethylenic unsaturated group emulsified in an aqueous medium using a dispersant, is carried out using a radical polymerisation initiator in the presence of a stabil N-oxyl radical. The initiator is a (hydro)peroxide and/or azo compound which has a molar solubility in water at 25 deg C and a bar which is greater than or equal to the corresponding molar solubility of tert-butyl hydroperoxide in water, and which has a degradation temperature less than 100 deg C in the polymerisation medium. The polymerisation step is carried out at a temperature greater than 100 deg C at a pressure greater than the vapour pressure of the polymer mixture present in the polymerisation vessel. Also claimed are aqueous polymer dispersions prepared by this method.

公开(公告)号：DE19622441A1

公开(公告)日：1997-12-11

申请号：DE19622441

申请日：1996-06-05

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  AUMUELLER ALEXANDER DR ,  KOCH ANDREAS DR ,  DECKERS ANDREAS DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  KINGMA AREND JOUKE DR ,  WEBER WILHELM DR

IPC: C08F2/34 ,  C07B63/04 ,  C07C7/20 ,  C07C11/04 ,  C07C51/50 ,  C08F2/38 ,  C08F2/40 ,  C08F10/00 ,  C08F210/02 ,  C08F210/06 ,  C08F220/06 ,  C08F236/06 ,  C08L23/06 ,  C08L23/12 ,  C08L23/20 ,  C08L33/02 ,  C08L23/02

Abstract: A process is claimed for the compression of ethylenic monomers to a pressure of 200-5000 bar, carried out in the absence of a polymerisation initiator and in the presence of a sterically hindered amine derivative (I). Also claimed is (i) a process for the production of copolymers by compressing the comonomers as above and then polymerising at 50-350 degrees C with addition of initiator, and (ii) copolymers obtained by this process.

公开(公告)号：MY130880A

公开(公告)日：2007-07-31

申请号：MYPI9905266

申请日：1999-12-03

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  WAGENBLAST GERHARD DR ,  SCHLIEPHAKE VOLKER DR ,  SCHRODER JURGEN DR ,  MUELLER-ENGEL KLAUS JOACHIM DR ,  KELLER HARALD DR ,  JAWOREK THOMAS DR

IPC: C07C45/86 ,  C07C69/52 ,  C07B63/04 ,  C07C47/22 ,  C07C51/50 ,  C07C51/64 ,  C07C57/075 ,  C07C67/62 ,  C07C69/54

Abstract: IN A PROCESS FOR STABILISING CHEMICAL COMPOUNDS HAVING AT LEAST ONE ETHYLENICALLY UNSATURATED BOND TO UNDESIRED FREE RADICAL POLYMERISATION, A NITROXYL RADICAL AND A CHEMICAL COMPOUND CONTAINING PHOSPHORUS IN CHEMICALLY BONDED FORM ARE ADDED TO THE UNSATURATED COMPOUND PRESENT AS PURE SUBSTANCE OR AS A COMPONENT OF A MIXTURE.