Abstract: The block copolymers according to the invention which are based on conjugated diolefins and polar monomers and are prepared in the presence of catalysts based on the rare earth metals have a high cis-1,4 content in the polydiene block and, because of their polar polymer part and their non-polar diene polymer part, can be used as agents which impart compatibility in the preparation of vulcanizates with a filler content for the production of tires and tire components, as a filler in the preparation of such vulcanizates, and as a blend component in the preparation of thermoplastic elastomers or in the modification of thermoplastics.

Abstract: Rubber mixtures according to the invention consist of rubber and specific polyurea fillers with a particle size of 0.001 to 500 &mgr;m and are particularly suitable for producing rubber vulcanizates and rubber molded items with low specific weights and low dynamic damping, in particular for producing low-damping tires and industrial rubber articles with a demanding range of physical requirements.

Abstract: The present invention relates to filled rubber mixes made from polyether/diolefin rubbers. The rubber mixes according to the present invention are suitable for the production of highly reinforced, abrasion-resistant moldings, in particular for the production of tires which exhibit low rolling resistance and elevated wet skid resistance.

Abstract: The present invention relates to adhesive rubber mixtures consisting of at least one rubber and from 5 to 300 parts by weight of filler, the rubber having been prepared by polymerizing diolefins and, optionally, further vinylaromatic monomers in solution and introducing hydroxyl and/or carboxyl groups, that rubber having a total content of from 0.05 to 5 wt. % of bonded hydroxyl and/or carboxyl groups or their salts, a content of vinylaromatic monomers polymerized therein of from 0 to 50 wt. % and a content of diolefins of from 45 to 99.95 wt. %, the content of 1,2-bonded diolefins (vinyl content) being from 0 to 60 wt. % and the content of trans-1,4-bonded diolefin being from 0 to 40 wt. %, and from 2 to 20 parts by weight of sulfur or sulfur donors and, optionally, further rubbers, rubber auxiliaries and crosslinking agents.

Abstract: The present invention relates to a composition and to a method for extracting DNA. More specifically, the present invention relates to a composition and to a method to extract DNA from dried biological samples on solid substrates, including but not limited to, buccal smears, semen and especially blood. The method can be conducted in a single-tube. The DNA extracted in accordance with the present invention can be used for DNA amplification reactions, DNA sequencing, DNA restriction analysis and DNA hyridization.

Abstract: The present invention relates to rubbers based on diolefins that are characterized in that they have a content of 0.1 to 40 wt. %, relative to the total quantity of rubber, of non-polar lateral, saturated, linear, branched or cyclic hydrocarbons bound via sulfur atoms containing 1 to 22 carbon atoms or aromatic hydrocarbon radicals containing 6 to 22 carbon atoms, wherein the rubbers are produced by polymerization in solution.

Abstract: This invention is directed to rubber compounds which amongst other constituents contain fillers and contain solution rubbers which contain carboxyl groups, are particularly suitable for the production of highly reinforced rubber moldings, particularly for the production of tires which exhibit particularly high wet slip resistance and abrasion-resistance.

Abstract: The rubber mixtures according to the invention consisting of a rubber, a filler and a specific sulphurized mineral oil are suitable for producing shaped vulcanizates, in particular for producing tires with reduced rolling resistance and high resistance to wet skidding, and tires with particularly reinforced side walls (“run flat tires”).

Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5 wt. % of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Abstract: The present invention relates to a process for the production of rubber mixtures containing 1 to 500 parts by weight of one or more water-repellent fillers with a methanol wettability of ≧5 wt. % to 100 parts by weight of rubber, characterized in that said water-repellent fillers are blended with one or more rubber latices and the mixture is then processes jointly, and also to rubber mixtures that can be produced with this process. The present invention relates furthermore to the use of the rubber mixtures produced by the process according to the invention for the production of tires, treads or molded articles of all kinds.

Abstract: The present invention relates to rubbers based on diolefins with a particular lateral polyether group content, mixtures thereof with fillers and the use of said rubbers and mixtures for the preparation of rubber vulcanizates with improved tear propagation resistance and favorable dynamic damping. More particularly, the rubbers according to the present invention are suitable for the manufacture of highly reinforced rubber molded articles, particularly for tires of vehicles, which are used both in road traffic and off-road.

Abstract: The present invention provides rubber mixtures with improved processing behavior containing special polyethers and use of the rubber mixtures for preparing vulcanizates, in particular for the production of highly reinforced, abrasion-resistant molded items, particularly preferably for producing tires which have a low rolling resistance and a high abrasion resistance.

Abstract: Hydrophobic, oxidic and/or siliceous fillers obtainable by treating an oxidic and/or siliceous filler with 0.1 to 50 parts by weight, per 100 parts by weight of filler, with an adduct of sulfur and unsaturated primary and/or secondary alcohols with 3 to 60 carbon atoms at temperatures of 20 to 250° C., wherein the adduct has been obtained by reacting 1 to 10 moles of sulfur per mole of double bonds in the alcohol.

Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5 wt. % of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Abstract: The present invention relates to rubber compounds comprising one or more soluble rubbers, hydrophobized filler, and one or more sulfane-silane compounds on an inorganic or organic support and to a process for making them. The novel rubber compounds are suitable for moldings of every kind, especially tires or tire treads having low rolling resistance and high resistance to abrasion.

Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5wt.% of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Abstract: The present invention relates to rubber mixtures consisting of at least one rubber and a specific proportion of a distillation residue from industrial trimethylolpropane production and the use of the rubber mixtures for the production of vulcanisates, especially for the production of highly reinforced, abrasion-resistant mouldings, particularly preferably for the production of tyres exhibiting low rolling resistance and high abrasion resistance.

Abstract: A rubber mixture containing at least one rubber component, at least one filler, and conventional additives that it contain at least one first gel as a filler, which is essentially comprised of a rubber, has a particle size of 3×10−9 to 1×10−6 m, and has a swelling index in toluene of 1 to 15, and at least the surface of this gel has acid or base groups, where these groups have not been produced by means of reaction with dithiophosphoric acid, and comprises: a) at least one second gel as an additional filler, which is essentially comprised of a rubber, has a particle size of 3×10−9 to 1×10−6 m, and has a swelling index in toluene of 1 to 15, which is in a position to undergo a neutralization reaction with the acid or base groups of the first gel and/or b) contains at least one substance as an additional additive, which is capable of undergoing a neutralization reaction with the acid or base groups of at least one gel.

Abstract: A rubber composition which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler having nucleophilic groups, gel particles comprising a rubber, having a particle size between about 3×10−9 and about 1×10−6 m and a swelling index in toluene of about 1 to about 15 and whose surface has electrophilic centers, and a substance acting as a coupling agent between the filler having nucleophilic groups and the additional filler, the substance acting as a coupling agent having the following structure: X—R1—Si—(R2)3, wherein X is a nucleophilic group, R1 is an alkyl group having up to about 6 carbon atoms or a phenyl group, and R2 may be the same as or different from each other and from R1 and is an alkyl or alkoxy group having up to 6 carbon atoms and at least one of R2 is an alkoxy group.

Abstract: The rubber mixtures containing modified rubber gels according to the invention prepared from at least one rubber gel modified with compounds containing sulphur and reactive towards C═C double bonds and at least one rubber containing double bonds are preferable suitable for the production of vulcanizates which have an unusually strong reinforcing action in rubber vulcanizates. The vulcanisates furthermore exhibit unusually low dynamic damping at relatively elevated temperatures. They are thus particularly suitable for the production of low rolling resistance motor vehicle tire treads.