Abstract: The use of polystyrene-containing polymers as filter aids and/or stabilizers for the filtration or stabilization of aqueous liquids, and also novel particulate polymers which are insoluble in water and scarcely swellable are claimed.

Abstract: 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.

Abstract: 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 ? position and molecules with a double bond in a position ? 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) Ha Meb [MFx]c, 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 ?1, b is an integer ?0, x is an integer ?2 and c is [(a+mb)/(x?n)]. The catalyst is preferably embodied in the form of HBF4 O(CH3)2. The inventive method makes it possible to obtain an isobutene polymer having a low fluorine-content even using technical C4 hydrocarbon portions as an isobutene source.

Abstract: 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 ? position and molecules with a double bond in a position ? 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) HaMeb[MFx]c, 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 ?1, b is an integer ?0, x is an integer ?2 and c is [(a+mb)/(x?n)]. The catalyst is preferably embodied in the form of HBF4O(CH3)2. The inventive method makes it possible to obtain an isobutene polymer having a low fluorine-content even using technical C4 hydrocarbon portions as an isobutene source.

Abstract: Process for the preparation of polymers by free-radical polymerization from (a) ethylenically unsaturated monomers and (b) polyalkylene oxide-containing silicone derivatives, where the polymerization is carried out in the presence of alkanethiols having a carbon chain length of from C 10 to C 12.

Abstract: The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII in which R1, R2, R4 are straight-chain or branched organic radicals optionally containing heteroatoms; R5 is hydrogen or alkyl, R7 is hydrogen or alkyl or two radicals R7 together form a radical having a meaning given for R4, b is an integer from 0 to 50, and c is an integer from 1 to 50. 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.

Abstract: The present invention relates to polymeric products obtainable by mixing (A) polymers which are obtainable by free-radical polymerization of (A-1) ethylenically unsaturated monomers in the presence of (A-2) unsaturated polyalkylene glycols with (B) silicones at a temperature greater than or equal to 30° C. In addition, the invention relates to a process for the preparation of these polymeric products, and to their use in cosmetic preparations, in particular in hair cosmetic preparations.

Abstract: The present invention relates to cosmetic preparations, in particular for hair cosmetic applications, which comprise copolymers based on N-vinyllactams and N-vinyl heterocyclic compounds.

Abstract: A description is given of the use of polymers comprising thermoplastic polymers as filter aids and/or stabilizers for filtering or stabilizing aqueous liquids.

Abstract: Process for the preparation of polymers by free-radical polymerization from (a) ethylenically unsaturated monomers and (b) polyalkylene oxide-containing silicone derivatives, where the polymerization is carried out in the presence of alkanethiols having a carbon chain length of from C 10 to C 12.

Abstract: Process for the preparation of polymers by free-radical polymerization from (a) ethylenically unsaturated monomers and (b) polyalkylene oxide-containing silicone derivatives, where the polymerization is carried out in the presence of alkanethiols having a carbon chain length of from C 13 to C 22.

Abstract: The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII 1

Abstract: The use of polystyrene-containing polymers as filter aids and/or stabilizers for the filtration or stabilization of aqueous liquids, and also novel particulate polymers which are insoluble in water and scarcely swellable are claimed.

Abstract: 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.

Abstract: 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.