Basf Aktiengesellschaft

Basf Se Corporation

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Christian Drohmann

Axel Sanner

Helmut B Witteler

Klemens Mathauer

Karl Kolter

Helmut Mach

Thomas Wettling

John-Bryan Speakman

Darijo Mijolovic

Mathias Hahn

Werner Jaeger

Loni Schweikert

Tobias Petsch

Mirjam Herrlich-Loos

Frank Müller

Thomas Keßler

Elisa Hamm De Bantleon

The invention relates to the use of polymers comprising thermoplastic polymers as filtration aids and/or stabilishing agent for the filtration or stabilisation of aqueous liquids.

Use of polymers comprising thermoplastic polymers as filtration aids and/or stabilising agent

The invention relates to a method for producing mainly ethylenically unsaturated isobutene polymers, wherein the sum of proportions of molecules with a double bond in an &#x3b1; position and molecules with a double bond in a position &#x3b2; is increased to 75% mol by polymerising isobutene in a liquid phase in the presence of a diluted or dispersed catalyst complex which comprises (i) an electron donor and (ii) a compound of general formula (I) HMe[MF], wherein Me is a metal with oxidation state m, M is an element selected from elements of the groups 2, 3, 4, 5, 10, 11, 13, 14 or 15 of the periodic table according to the IUPAC notation of an element oxidation number n, a is an integer &#x2267;1, b is an integer &#x2267;0, x is an integer &#x2267;2 and c is [(a+mb)/(x&#x2212;n)]. The catalyst is preferably embodied in the form of HBFO(CH). The inventive method makes it possible to obtain an isobutene polymer having a low fluorine-content even using technical Chydrocarbon portions as an isobutene source.

Isobutene polymerisation in the presence of a donor and fluorinated acids complex

Process for the preparation of polymers by free-radical polymerization from

Method for the production of polymers

The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII  The invention also relates to the preparation of the quaternary polyamidoamines, to compositions which comprise these compounds, and to the use thereof for cosmetic and pharmaceutical purposes, and in the fields of crop protection and textile dyeing. The present invention also relates to the use of quaternized polyamidoamines of the ionene type as biostatic or biocide and thus also biocidal compositions based on quaternized polyamidoamines.

Quaternary polyamidoamines, the production thereof, corresponding agents and the use thereof

The description is given of the use of particulate water-insoluble polymer preparations comprising at least one polymer P that is essentially made up of hydrophilic polymer segments and hydrophobic polymer segments as filter aids for filtering aqueous liquids.

Use of particulate polymers as filter aids for aqueous liquids

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Schifferstadt, Germany

Christian Drohmann