公开(公告)号：MY174854A

公开(公告)日：2020-05-19

申请号：MYPI2014001901

申请日：2013-01-04

Applicant: BASF SE

Inventor： DR BRYM MARKUS ,  DR WETTLING THOMAS ,  HIRSCH STEFAN ,  WEIS MARKUS

Abstract: Continuous production of polyisobutylene having a content of terminal double bonds of greater than 50% by polymerization of isobutene in the presence of a polymerization catalyst usual therefor, by combining a technical 1-butene-, 2-butene- and isobutene-containing C4 hydrocarbon stream together with a stream of pure isobutene, and feeding the combined stream into the reaction zone in such a manner that the steady state concentration of isobutene in the combined stream at the point where the combined stream is fed into the reaction zone has a value of on average at least 40% by weight, and the invention also relates to a polymerization system therefor.

公开(公告)号：MY166046A

公开(公告)日：2018-05-22

申请号：MYPI2014000294

申请日：2012-08-10

Applicant: BASF SE

Inventor： DR KONIG HANNAH MARIA ,  DR MUHLBACH KLAUS ,  DR WETTLING THOMAS ,  DR EICHENAUER ULRICH ,  PROF DR MAYR HERBERT

IPC: C08F10/10 ,  C08F4/06

Abstract: PREPARATION OF HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS WITH A CONTENT TERMINAL VINYLIDENE DOUBLE BONDS PER POLYISOBUTENE CHAIN END OF AT LEAST 50 MOL% BY POLYMERIZATION OF ISOBUTENE OR ISOBUTENE-COMPRISING MONOMER MIXTURES IN THE PRESENCE OF LEWIS ACIDS SUITABLE AS POLYMERIZATION CATALYSTS OR OF COMPLEXES WHICH ARE EFFECTK’E AS POLYMERIZATION CATALYSTS AND ARE FORMED FROM LEWIS ACIDS AND DONORS, AND IN THE PRESENCE OF INITIATORS, WHEREIN THE INITIATORS USED ARE ORGANIC SULFONIC ACIDS Z-S03H IN WHICH THE VARIABLE Z DENOTES AN ALKYL RADICAL, HALOALKYL RADICAL, CYCBALKYL RADICAL, ARYL RADICAL OR ARYLALKYL RADICAL.

公开(公告)号：MY169725A

公开(公告)日：2019-05-14

申请号：MYPI2014000967

申请日：2012-10-10

Applicant: BASF SE

Inventor： DR KONIG HANNAH MARIA ,  URBAN RAINER ,  DR MUHLBACH KLAUS ,  DR WETTLING THOMAS ,  DR RACHWALSKY UWE ,  HIRSCH STEFAN ,  BERG ANNE ,  DR MACH HELMUT

Abstract: Production of isobutene homo- or copolymers having a number average molecular weight of 500 to 5,000,000 by polymerisation of isobutene or an isobutene- containing monomer mixture in the presence of a Lewis acid or a complex containing a Lewis acid as a polymerisation catalyst, the polymerisation being performed in the presence of at least one hemiacetal or acetal, which can be obtained by protonic acid- catalysed reaction of at least one C1 to C12 hydrocarbyl alcohol with at least one aldehyde or ketone having 1 to 12 carbon atoms.

公开(公告)号：MY168940A

公开(公告)日：2019-01-10

申请号：MYPI2014002038

申请日：2013-02-15

Applicant: BASF SE

Inventor： DR WETTLING THOMAS ,  DR BRYM MARKUS ,  WEIS MARKUS ,  HIRSCH STEFAN

IPC: C08F10/10 ,  C08F4/14 ,  C08F4/26

Abstract: The invention relates to the production of isobutylene homopolymers having a weight-average molecular weight of 75,000 to 10,000,000 by means of the polymerization of isobutylene by (a) performing the polymerization at -80?C to - 190?C, (b) using optionally halogenated C1 to C5 hydrocarbons as an inert solvent, (c) using a Lewis acid complex as a polymerization catalyst, and (d) performing the polymerization in the presence of at least one reaction accelerator in the form of an ethylenically saturated hydrocarbon compound, which contains an oxygen atom and no proton that can be emitted, and performing the polymerization in the presence of at least one chain length regulator, which contains a tertiary olefinic carbon atom.