Abstract: The invention relates to the use of polyamide 6 for reduction of the melt viscosity, to be determined at 260° C. to ISO 11443, and/or of the fill pressure, to be determined according to EN ISO 294-1, of compositions and moulding compounds in which there are 10 to 115 parts by mass of glass fibres per 100 parts by mass of poly-C1-C6-alkylene terephthalate.

Abstract: Methods for seating water and gulp used in a paper or cardboard manufacturing process. Oxygen and nutrients are added to the water or pulp to increase the activity of aerobic bacteria resulting in a reduction of organic substances such as fatty acids. Alternatively oxygen alone is added to the water or pulp to reduce all both aerobic and anaerobic bacterial activity.

Abstract: The invention relates to a method for breaking down biological material, especially for obtaining biomolecules by ultrasound, the biological material being arranged, in a container together with a liquid.

Abstract: Methods for treating water and pulp used in a paper or cardboard manufacturing process. Oxygen and nutrients are added to the water or pulp to increase the activity of aerobic bacteria resulting in a reduction of organic substances such as fatty acids. Alternatively oxygen alone is added to the water or pulp to reduce all both aerobic and anaerobic bacterial activity.

Abstract: The invention relates to a method for breaking down biological material, especially for obtaining biomolecules by ultrasound, the biological material being arranged, in a container together with a liquid.

Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.

Abstract: The invention relates to a method and means for the rapid identification of mutations. The test strains used in the invention contain a reporter system and a selection marker. An antibiotic resistance protein which after mutation allows the selective growth of the revertant and the targeted induction of the inducible reporter system of the developing revertants acts as the selection marker. Proteins that are capable of directly or indirectly triggering a measuring signal are used as the reporters. The mutations are identified by means of the reporter signal of the developing revertants, in such a way that the evaluation can take place after only a few hours.

Abstract: Disclosed herein is the polymerization of monodisperse microencapsulated monomer droplets to produce monodisperse non-microencapsulated bead polymers through the addition strong alkalis or strong acids during the polymerization.

Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.

Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.

Abstract: The invention relates to a process for preparing gel-type cation exchangers of high osmotic and mechanical stability and enhanced stability to oxidation by a seed/feed process, the seed used being a polymer containing 3.5-7% by weight of crosslinker.

Abstract: Spherical copolymers prepared by a seed/feed process with a feed comprising vinylaromatic compounds, divinylbenzene, methyl acrylate, and free-radical initiator can be converted into cation exchangers in gel form having high stability and purity by sulfonation in the absence of a swelling agent.

Abstract: The present invention relates to the use of new catalysts containing a metal-free cyclopentadienide compound and a transition-metal compound for the polymerization of unsaturated compounds, in particular of conjugated dienes.

Abstract: The present invention relates to a metal-free cyclopentadienide compound which, in conjunction with a metallocene, is able to form a catalyst system that can be used for the polymerization of olefins. It is thus possible to dispense with the use of methylaluminoxane (MAO) or boron-containing compounds as co-catalyst and nevertheless achieve a high degree of catalytic activity. The invention relates also to a process for the preparation of the metal-free cyclopentadienide compound and to the use thereof as a catalyst component in the preparation of polyolefins.

Abstract: The invention relates to a process for preparing substantially monodisperse crosslinked bead polymers useful as precursors for ion exchangers.

Abstract: This invention relates to a method for the suspension polymerization of conjugated dienes in hydrocarbon mixtures comprising a fraction by volume greater than 80% of C4 hydrocarbons wherein polymerization is conducted in the presence of a rare earth compound, of one or more aluminum compounds, and optionally of an additional Lewis acid. The invention further relates to the polymers which can be produced according to the present invention and to the use thereof for the production of moldings of all types, particularly tires and industrial rubber products, and for blending with polystyrene (HIPS).

Abstract: The invention relates to a process for preparing monodisperse cation-exchanger gels with increased oxidation resistance and with high osmotic stability and purity by

Abstract: The invention relates to a process for preparing substantially monodisperse crosslinked bead polymers useful as precursors for ion exchangers.

Abstract: Cycloolefin copolymers for use for optical data memories, can be prepared by copolymerization of monomers from the group consisting of cyclic olefins, &agr;-olefins having 2 or more C atoms and optionally conjugated or non-conjugated diolefins, the catalysts employed being metallocene compounds or &pgr; complex compounds of the formula in which CpI and CpII represent carbanions having a cyclopentadienyl-containing structure, &pgr;I and &pgr;II represent charged or electrically neutral &pgr; systems, D represents a donor atom and A represents an acceptor atom, where D and A are linked by a reversible coordinate bond such that the donor group assumes a positive (part) charge and the acceptor group assumes a negative (part) charge, M represents a transition metal of sub-group III, IV, V or VI of the Periodic Table of elements (Mendeleev), including the lanthanides and the actinides, X denotes an anion equivalent and n denotes the number zero, one, two, three or four, depending on the ch

Abstract: Olefins are polymerized with a catalyst system resulting from the combination of unbridged substituted indenyl cyclopentadienyl metallocenes and an organoaluminum cocatalyst.