Basf Se Corporation

Solenis Technologies, L.p.

Solenis Technologies Cayman, L.p.

Rosa Corberan Roc

Klaus Muehlbach

Thomas Wettling

Sergei Victorovich Kostjuk

Irina Vasilenko

Dmitryi Shiman

Andreas Daiss

Christian Jehn-Rendu

Stefan Hirsch

Markus Brym

Gregor Herth

Natalie Beatrice Janine Herle

Markus Weis

Robert Haschick

Ruth Lohwasser

Marco-Christian Volland

Klaus Muhlbach

Ivan Berazianka

Herbert Hommer

Jochen Wagner

Anja Thomas

Axel Hust

The present invention is directed to the use of a quaternized derivative of polyisobutylene as stabiliser in inverse emulsions like inverse emulsions used for a reverse-phase emulsion polymerisation process, e.g. for the polymerisation of acrylamide and ethylenically unsaturated cationic monomers. Such emulsions are e.g. used as flocculant for waste water treatment. The present invention is further directed to inverse emulsions comprising a quaternized derivative of polyisobutylene. The inverse emulsions have sufficiently low viscosity and sufficiently high shear stability. The present invention is further directed to an inverse emulsion polymerisation process, wherein the inverse emulsion comprises a quaternized derivative of polyisobutylene.

Stabilisers for use in inverse emulsion polymerisation processes

The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 80 mol %. The present invention further relates to novel isobutene polymers.

Process for preparing high-reactivity isobutene homo- or copolymers

The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers.

The present invention concerns a composition being an inverse emulsion comprising cross-linked anionic, organic polymeric microparticles, said microparticles having an unswollen z-average particle size diameter of less than 0.75 &#x3bc;m, wherein the organic polymeric microparticles are formed from a monomer mixture comprising The invention also provides a process for preparing the composition, the use of the composition in a paper or paperboard making process and methods of making paper or paperboard employing said composition.

Composition comprising cross-linked anionic, organic polymeric microparticles, its preparation and use in paper and paperboard making processes

The present invention relates to a process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %, which comprises polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or an alkylaluminum halide-donor complex effective as a polymerization catalyst, wherein the aluminum trihalide or alkylaluminum halide is treated with at least one inorganic hydrate.

The present invention relates to a process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per homo- or copolymer chain end of at least 70 mol % which comprises polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, said complex comprising, as the donor, a mixture of at least two organic compounds with at least one ether function each.

A thermoplastic molding composition containing

Impact modifier based on polyisobutane for polyamides

Preparation of isobutene homopolymers having a weight-average molecular weight of 75 000 to 10 000 000 by polymerization of isobutene, by

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Ludwigshafen, Germany

Rosa Corberan Roc