- Use Of Polyisobutenyl Succinic Anhydride-Based Block Copolymers In Cosmetic Preparations
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The invention relates to novel cosmetic preparations comprising an O/W emulsion, where the O/W emulsion comprises at least one amphiphilic polymer comprising one or more hydrophobic units A and one or more hydrophilic units B, where the hydrophobic units A are formed from polyisobutenes modified with terminal, polar groups, at least one component with an HLB value in the range from 8 to 20, and at least one oil and/or fat phase and water.
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Page/Page column 40-41
(2008/12/07)
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- SUBSTITUTED CYCLOALKANES, AND USE THEREOF AS CATIONIC POLYMERIZATION INITIATORS
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Disclosed are substituted 7-membered to 12-membered cycloalkanes comprising terminal groups, especially chloride atoms, on tertiary ring carbon atoms, a method for the production thereof, and the use thereof as cationic polymerization initiators, particularly for cationically polymerizing isobutene. Preferred compounds are 1,4-dichloro-1,4-dimethylcyclooctane, 1,5-dichloro-1,5-dimethylcyclooctane, and mixtures thereof. Said compounds are produced by adding hydrocarbon to adequately substituted cycloalkapolyenes.
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Page/Page column 16; 17
(2010/02/11)
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- Method for producing polyisobutenes
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Polyisobutenes in which at least 60 mol % of the polymer chains have at least one olefinically unsaturated terminal group are prepared by cationic polymerization of isobutene or isobutene-containing monomer mixtures in the condensed phase by a process in which the polymerization is carried out in the presence of an initiator system comprising i) a Lewis acid selected from covalent metal chlorides and semimetal chlorides and ii) at least one organic compound I having at least one functional group FG which forms a carbocation or a cationic complex with the Lewis acid under the polymerization conditions, where FG is selected from acyloxy, alkoxy and halogen, which are bonded to a secondary or tertiary carbon atom or to an allylic or a benzylic carbon atom, in a solvent inert toward the Lewis acid, the Lewis acid being used in less than the stoichiometric amount, based on the functional groups FG.
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