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：EP0792892A3

公开(公告)日：1998-07-08

申请号：EP97103117

申请日：1997-02-26

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  RUEHL THOMAS DR ,  KLIMESCH ROGER DR ,  WENDEROTH BERND DR ,  MUELLER HANS-JOACHIM DR

IPC: C08F4/38 ,  C08F210/02 ,  C10L1/197 ,  C10L1/18

CPC classification number: C10L1/1973 ,  C08F210/02 ,  C08F218/06 ,  C08F2500/17

Abstract: Die Copolymere umfassen Ethylengrundbausteine und Vinylformiatgrundbausteine, wobei vorzugsweise der Gehalt an freiem Vinylformiat im Polymer maximal 5.000 ppm, bezogen auf das Gewicht des Copolymers, beträgt. Ferner betrifft die Erfindung ein Verfahren zu ihrer Herstellung sowie ihre Verwendung als Fließverbesserer, insbesondere in Erdöldestillaten, vorzugsweise Brenn- und Treibstoffzusammensetzungen, insbesondere Erdöl-Mitteldestillaten, wie auch eine Brenn- und Treibstoffzusammensetzung, umfassend eine Hauptmenge eines Brenn- und Treibstoffs und eine zur Verbesserung der Fließeigenschaften wirksame Menge des Copolymers.

公开(公告)号：EP0475124B1

公开(公告)日：1995-10-18

申请号：EP91113822

申请日：1991-08-17

Applicant: BASF AG

Inventor： BERGER ALBIN DR ,  KLIMESCH ROGER DR ,  MUELLER MICHAEL WOLFGANG DR ,  BOEHLKE KLAUS DR ,  SCHWENDEMANN VOLKER DR ,  MIETZNER FRANZ GEORG DR

IPC: C08F2/02 ,  C08F10/00 ,  C08F210/02

CPC classification number: C08F210/02 ,  C08F218/08

公开(公告)号：ES2135517T3

公开(公告)日：1999-11-01

申请号：ES94115718

申请日：1994-10-06

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  SCHLUND RUGER DR ,  KLIMESCH ROGER DR

IPC: B44F1/12 ,  C08F8/12 ,  C08F210/02

Abstract: The preparation of carboxyl-containing copolymers of ethylene by polymer-analogous pyrolytic ester cleavage of copolymers, comprising a) from 60 to 99.9 mol% of ethylene, b) from 0.1 to 40 mol% of (C4- to C8-tert-alkyl) esters of copolymerisable C3-C12-carboxylic acids and c) from 0 to 20 mol% of further copolymerisable monomers by carrying out the pyrolytic ester cleavage at temperatures of from 150 to 250 DEG C in the presence of organic sulphonic acids, in the absence of a solvent and in the virtual absence of initiators for free-radical reactions.

公开(公告)号：DE59505369D1

公开(公告)日：1999-04-22

申请号：DE59505369

申请日：1995-11-17

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  LITTMANN DIETER DR ,  KLIMESCH ROGER DR

IPC: C08F210/02

Abstract: In the prepn. of copolymers (I) of 94-99.5 mole-% C2H4 and 0.5-6 mole-% 3-6C alkenoic acid (II) by free radical high pressure polymerisation in a tubular reactor, the monomer mixt. is heated to a temp. not above 100 degrees C before adding the initiator and the max. polymerisation temp. does not exceed 260 degrees C. Also claimed are (I) per se; and adhesion promoters, fibres, films and mouldings contg. (I).

公开(公告)号：ES2110808T3

公开(公告)日：1998-02-16

申请号：ES95116070

申请日：1995-10-12

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  BERGER ALBIN DR ,  HOFMANN JURGEN ,  KLIMESCH ROGER DR ,  FARWERCK KARL-PETER ,  OHLIG HILMAR

IPC: A61K8/31 ,  A61Q19/00 ,  B29B15/00 ,  C08F8/50 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08J11/12 ,  C09D7/12 ,  C09D11/12 ,  C09D191/08

Abstract: Thermomechanical degradation of polyolefin(s) is carried out in a twin-screw extruder without the use of any additional degradation appts., at 300-500 degrees C and 1-100 bar over a mean dwell time of 0.5-10 min., during which the pressure is (a)periodically altered by 0.5-30 bar. Low molecular wt. polyolefin waxes prepd. by this method are also claimed.

公开(公告)号：AT161856T

公开(公告)日：1998-01-15

申请号：AT95116070

申请日：1995-10-12

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  BERGER ALBIN DR ,  HOFMANN JUERGEN ,  KLIMESCH ROGER DR ,  FARWERCK KARL-PETER ,  OHLIG HILMAR

IPC: A61K8/31 ,  A61Q19/00 ,  B29B15/00 ,  C08F8/50 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08J11/12 ,  C09D7/12 ,  C09D11/12 ,  C09D191/08

Abstract: Thermomechanical degradation of polyolefin(s) is carried out in a twin-screw extruder without the use of any additional degradation appts., at 300-500 degrees C and 1-100 bar over a mean dwell time of 0.5-10 min., during which the pressure is (a)periodically altered by 0.5-30 bar. Low molecular wt. polyolefin waxes prepd. by this method are also claimed.

公开(公告)号：DE4441822A1

公开(公告)日：1996-05-30

申请号：DE4441822

申请日：1994-11-24

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  LITTMANN DIETER DR ,  KLIMESCH ROGER DR

IPC: C08F210/02

Abstract: In the prepn. of copolymers (I) of 94-99.5 mole-% C2H4 and 0.5-6 mole-% 3-6C alkenoic acid (II) by free radical high pressure polymerisation in a tubular reactor, the monomer mixt. is heated to a temp. not above 100 degrees C before adding the initiator and the max. polymerisation temp. does not exceed 260 degrees C. Also claimed are (I) per se; and adhesion promoters, fibres, films and mouldings contg. (I).

公开(公告)号：DE59106718D1

公开(公告)日：1995-11-23

申请号：DE59106718

申请日：1991-08-17

Applicant: BASF AG

Inventor： BERGER ALBIN DR ,  KLIMESCH ROGER DR ,  MUELLER MICHAEL WOLFGANG DR ,  BOEHLKE KLAUS DR ,  SCHWENDEMANN VOLKER DR ,  MIETZNER FRANZ GEORG DR

IPC: C08F2/02 ,  C08F10/00 ,  C08F210/02

公开(公告)号：DE4334846A1

公开(公告)日：1995-04-20

申请号：DE4334846

申请日：1993-10-13

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  SCHLUND RUEGER DR ,  KLIMESCH ROGER DR

IPC: B44F1/12 ,  C08F8/12 ,  C08F210/02 ,  C08F220/04 ,  C08F222/02

Abstract: The preparation of carboxyl-containing copolymers of ethylene by polymer-analogous pyrolytic ester cleavage of copolymers, comprising a) from 60 to 99.9 mol% of ethylene, b) from 0.1 to 40 mol% of (C4- to C8-tert-alkyl) esters of copolymerisable C3-C12-carboxylic acids and c) from 0 to 20 mol% of further copolymerisable monomers by carrying out the pyrolytic ester cleavage at temperatures of from 150 to 250 DEG C in the presence of organic sulphonic acids, in the absence of a solvent and in the virtual absence of initiators for free-radical reactions.