Patent search ap:("BASF AG") AND inv:"WIEDEMANN ALEXANDRA" Page 1

1.

发明专利
METHOD FOR PRODUCING POLYISOBUTENE 未知

公开(公告)号：CA2626060A1

公开(公告)日：2007-04-19

申请号：CA2626060

申请日：2006-10-10

Applicant: BASF AG

Inventor： WIEDEMANN ALEXANDRA , WETTLING THOMAS , WEBER FRANZ , RACHWALSKY UWE , DUECKER CAROLIN NADINE , KARCHES MARTIN , VOLLAND MARCO-CHRISTIAN , STUETZER DIETER , BOCHNITSCHEK WERNER , SEIDL VOLKER

IPC: C08F10/10 , C08F2/34

Abstract: The present invention relates to a process for preparing polyisobutene by polymerizing isobutene using an inert diluent and a halogen-containing Lewis acid as a catalyst, wherein the isobutene in the form of droplets is contacted with the Lewis acid in a polymerization apparatus.

2.

发明专利
Production of polyisobutene, preferably of high molecular weight, involves polymerization by contacting isobutene droplets with Lewis acid containing halogen as catalyst using inert diluent, preferably as lower liquid reservoir zone 未知

公开(公告)号：DE102005048698A1

公开(公告)日：2007-04-12

申请号：DE102005048698

申请日：2005-10-11

Applicant: BASF AG

Inventor： SEIDL VOLKER , DUECKER CAROLIN NADINE , WIEDEMANN ALEXANDRA , WETTLING THOMAS , RACHWALSKY UWE , VOLLAND MARCO-CHRISTIAN

IPC: C08F10/10 , C08F2/01 , C08F2/08 , C08F4/14

Abstract: Production of polyisobutene involves polymerization of isobutene (I) using an inert diluent and a Lewis acid (II) containing halogen as catalyst, in which (I) in the form of droplets is contacted with (II) in polymerization equipment. Independent claims are included for (1) polyisobutene with a number average molecular weight Mn in the range of 150000-5000000 g/mole and a dispersity index D in the 4-10 range; (2) polyisobutene obtained by the specified process.

3.

发明专利
Rubber-modified styrene polymer production, for molding, film, fiber or foam, involves producing rubber by anionic dispersion polymerization, dissolving in styrene monomer without removing medium and anionic or free radical polymerization 未知

公开(公告)号：DE10330935A1

公开(公告)日：2005-02-03

申请号：DE10330935

申请日：2003-07-08

Applicant: BASF AG

Inventor： SUHM JUERGEN , LOTH WOLFGANG , SCHWITTAY CLAUDIUS , MEHLER CHRISTOF , KOCH JUERGEN , GRAMMATIS ZAFIRIOS , CLAUER JAUME , WIEDEMANN ALEXANDRA , NIEKEN ULRICH , WASMER KARL-HEINZ , SCHADE CHRISTIAN , DESBOIS PHILIPPE

IPC: C08F279/02 , C08F2/26

Abstract: Production of rubber-modified styrene polymers (I) comprises (1) producing rubber (II) dispersion by anionic dispersion polymerization of diene and optionally styrene monomer(s) in 3-6 carbon aliphatic hydrocarbon (III) which is nonsolvent for (II); (2) mixing intensively with styrene monomer and optionally comonomer, without separating (III), to dissolve (II) in monomer(s); and (3) anionic or free radical polymerization of (II) solution to (I) and simultaneous removal of (III). An independent claim is also included for rubber-modified styrene polymers made by this process.

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