公开(公告)号：DE4017300A1

公开(公告)日：1991-12-05

申请号：DE4017300

申请日：1990-05-30

Applicant: BASF AG

Inventor： KNOLL KONRAD DR ,  BRONSTERT KLAUS DR ,  BENDER DIETMAR DR

IPC: C08F8/20 ,  C08F10/10

Abstract: A process for the preparation of polymers of isobutene having tertiary chloride groups by reaction of appropriate polymers which have been prepared by cationic polymerization of isobutene with hydrogen chloride.

公开(公告)号：DE3923527A1

公开(公告)日：1991-01-24

申请号：DE3923527

申请日：1989-07-15

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR ,  FISCHER MARTIN DR

IPC: C08F4/14 ,  C08F8/08 ,  C08F8/26

公开(公告)号：DE19544596A1

公开(公告)日：1996-06-13

申请号：DE19544596

申请日：1995-11-30

Applicant: BASF AG

Inventor： NIESNER NORBERT DR ,  BENDER DIETMAR DR

IPC: C08K5/00 ,  C08K5/134 ,  C08L25/06 ,  C08L53/02 ,  C08K5/13

Abstract: A mixt. (I) of (A) 1-99 wt.% mixt. of 90-99.9 wt.% styrene-butadiene block copolymer (SBS) and 0.1-10 wt.% volatile phenolic stabiliser and (B) 1-99 wt.% polystyrene (PS) or mixt. of 90-99.9 wt.% PS and 0.1-10 wt.% hardly volatile phenolic stabiliser is claimed. Also claimed is a method of producing a mixt. of PS and SBS stabilised against the liberation of styrene monomer by preparing mixt. (I). Pref. the volatile stabiliser is 2,6-di-tert.-butyl-4-methylphenol (II).

公开(公告)号：DE4228160A1

公开(公告)日：1994-03-03

申请号：DE4228160

申请日：1992-08-25

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR ,  MACH HELMUT DR ,  FISCHER MARTIN DR

IPC: C08F8/12 ,  C08C19/02 ,  C08C19/26 ,  C08C19/40 ,  C08C19/42 ,  C08F8/00 ,  C08F8/30 ,  C08F8/42 ,  C08F236/10 ,  C08F8/08 ,  C08F36/04 ,  C08F297/04 ,  C08G81/02 ,  C10M149/02 ,  C10M145/02

Abstract: Polymers Ia and Ib carrying functional groups, obtainable by A) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprising a) from 20 to 100% by weight of a conjugated diene, b) from 0 to 80% by weight of a vinylaromatic compound and c) from 0 to 20% by weight of further comonomers, to give the hydrogenated polymers IIb, 2. metallation of IIb using an organoalkali metal compound to give IIc, 3. reaction of IIc with a diaziridine III to give IId and 4. hydrolysis or alcoholysis of IId to give Ia, or by B) 1. partial hydrogenation of IIa to give partially hydrogenated polymers IIb', 2. epoxidation of the double bonds of IIb' to give IIe and 3. reaction of IIe with a compound IV carrying functional groups to give Ib. These polymers Ia and Ib are suitable as viscosity index improvers for engine oils.

公开(公告)号：DE59004025D1

公开(公告)日：1994-02-10

申请号：DE59004025

申请日：1990-10-06

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR ,  WALTER HANS-MICHAEL DR ,  WAGNER DANIEL DR ,  MACH HELMUT DR

IPC: C08F297/04 ,  C08C19/44 ,  C08F8/00 ,  C08F8/04 ,  C08F297/02

Abstract: Star-type branched copolymer of the general formula [A-]kX, in which A represents the monovalent radical of a homopolymer, of a block copolymer or of a random copolymer of a conjugated diene and/or of a vinylaromatic hydrocarbon, k indicates a number between 1 and 10 and X denotes the k-valent radical of a coupling centre formed by coupling of a hexatriene, and hydrogenation product thereof.

公开(公告)号：DE3934450A1

公开(公告)日：1991-04-18

申请号：DE3934450

申请日：1989-10-14

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR ,  WALTER HANS-MICHAEL DR ,  WAGNER DANIEL DR ,  MACH HELMUT DR

IPC: C08F297/04 ,  C08C19/44 ,  C08F8/00 ,  C08F8/04 ,  C08F297/02

Abstract: Star-type branched copolymer of the general formula [A-]kX, in which A represents the monovalent radical of a homopolymer, of a block copolymer or of a random copolymer of a conjugated diene and/or of a vinylaromatic hydrocarbon, k indicates a number between 1 and 10 and X denotes the k-valent radical of a coupling centre formed by coupling of a hexatriene, and hydrogenation product thereof.

公开(公告)号：DE3928811A1

公开(公告)日：1991-03-07

申请号：DE3928811

申请日：1989-08-31

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR

IPC: C08F8/26 ,  C08F4/06 ,  C08F8/46 ,  C08F10/10

Abstract: A modified polyisobutene has the general formula I (I) where R1 is an olefinically unsaturated divalent radical, R2 is one of the radicals -CH2-C(=CH2)-CH2- or -CH2-C(CH3)=CH- or m and n are each a degree of polymerization in particular from 1 to 1000.

公开(公告)号：DE3832204A1

公开(公告)日：1990-03-29

申请号：DE3832204

申请日：1988-09-22

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR

IPC: C07D215/04 ,  C07C1/32 ,  C07C13/48 ,  C07C15/52 ,  C07C15/58 ,  C07C15/60 ,  C07C41/18 ,  C07C43/215 ,  C07C211/45 ,  C07C211/48 ,  C07D213/16 ,  C07D215/12 ,  C07D215/14 ,  C08C19/44 ,  C08F4/42 ,  C08F4/46 ,  C08F297/02 ,  C09B57/00

Abstract: Stilbene compounds of the general formula Ia, Ib or Ic R1R2R3Ar1-CH=CH-Ar3R4R5R6 (Ia) R1R2R3Ar1-CH=CH-Ar2R4R5R6-CH=CH-Ar3R7R8R9 (Ib) R1R2R3Ar1-CH=CH-Ar2(CH2)nAr3-CH=CH-Ar4R4R5R6 (Ic) where Ar1 to Ar4 are identical or different aromatic or quasi-aromatic radicals and n is from 0 to 20 and where either at least one of the radicals R1 to R6 or R9 is hydrocarbon-solubilizing alkyl, alkoxy, dialkylamino or diarylamino of 4 or more carbon atoms in the alkyl moiety or, if formula Ic contains no radicals R1 to R6, n is not less than 4, are prepared by metalating a toluene/xylene analog R1R2R3ArCH3 or H3CR4R5R6ArCH3 with an appropriate aldehyde Ar-CHO or dialdehyde OHC-Ar-CHO to form correspondingly substituted metal mono- or dialcoholates which are hydrolyzed/solvolyzed and dehydrated or pyrolyzed, and are used for preparing bifunctional initiators for anionic polymerization.

公开(公告)号：DE59108551D1

公开(公告)日：1997-03-27

申请号：DE59108551

申请日：1991-08-02

Applicant: BASF AG

Inventor： KNOLL KONRAD DR ,  BRONSTERT KLAUS DR ,  BENDER DIETMAR DR

IPC: C08F8/24 ,  C07C17/275 ,  C08F8/00 ,  C08F8/30 ,  C08F10/10 ,  C08F136/00 ,  C08F136/06

公开(公告)号：DK0584629T3

公开(公告)日：1996-11-18

申请号：DK93112776

申请日：1993-08-10

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  BRONSTER KLAUS DR ,  MACH HELMUT DR ,  FISCHER MARTIN DR

IPC: C08F8/12 ,  C08C19/02 ,  C08C19/26 ,  C08C19/40 ,  C08C19/42 ,  C08F8/00 ,  C08F8/30 ,  C08F8/42 ,  C08F236/10 ,  C08C19/44

Abstract: Polymers Ia and Ib carrying functional groups, obtainable by A) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprising a) from 20 to 100% by weight of a conjugated diene, b) from 0 to 80% by weight of a vinylaromatic compound and c) from 0 to 20% by weight of further comonomers, to give the hydrogenated polymers IIb, 2. metallation of IIb using an organoalkali metal compound to give IIc, 3. reaction of IIc with a diaziridine III to give IId and 4. hydrolysis or alcoholysis of IId to give Ia, or by B) 1. partial hydrogenation of IIa to give partially hydrogenated polymers IIb', 2. epoxidation of the double bonds of IIb' to give IIe and 3. reaction of IIe with a compound IV carrying functional groups to give Ib. These polymers Ia and Ib are suitable as viscosity index improvers for engine oils.