Abstract: A copolymer of (a) from 96 to 99.6% molar of ethylene and (b) from 0.4 to 4% molar of a C3-C6-alkenoic acid or an ester thereof having not more than 14 carbon atoms or a mixture of these monomers, which copolymer may be prepared by polymerization in a continuously operated tubular reactor under a pressure of from 500 to 5,000 bar and at elevated temperature in the presence of free-radical initiators by feeding a mixture of the said reactants to the inlet port of the reactor only, restricting the temperature in a first reaction zone to approximately 240° C. and, after the temperature has dropped by from 5°to 20° C., metering further initiator to the beginning of a second reaction zone and completing the reaction at a temperature of up to 300° C.

Abstract: A process for preparing a compound of the formula I where R1 and R2 are hydrogen or C1-C4-alkyl and R3 is C1-C10-alkyl, phenyl or C1-C4-alkyl-substituted phenyl, comprises reacting a compound II with a compound of the formula III where X is chlorine, bromine or iodine, in the presence of a Friedel-Crafts catalyst in one step to give a compound I.

Abstract: Aromatic nitro compounds in waste waters from nitrobenzene production plants are degraded by treatment with ozone at 60-100° C. 1.5-10 bar and pH 3 to 12.

Abstract: A mixture containing one stereoisomer of 3-hydroxyhexan-2-one and two stereoisomers of hexane-2,3-diol, especially (3R)-3-hydroxy-hexan-2-one, (2R,3R)-hexane-2,3-diol and/or (2R,3R)-hexane-2,3-diol and compositions containing them and the use of the mixture and of the compositions for controlling Hylotrupes bajulus and Pyrrhidium sanguineum by means of the monitoring, capture or mating disruption method are described.

Abstract: A fungicidal mixture, comprising a) a carbamate of the formula I,  in which X is CH or N, n is 0, 1 or 2 and Y is halogen, C1-C4-alkyl or C1-C4-haloalkyl, it being possible for the radicals Y to be different if n is 2, or a salt or adduct thereof, and b) an oxime ether carboxamide of the formula II  in which R represents hydrogen or halogen in a synergistically effective amount.

Abstract: A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or II RO—CH2—CH═CH—CH2—OR  I RO—CH2—CH2═CH—CH2—OR  II, where the R radicals can be identical or different and are C1-C15-alkyl or cycloalkyl radicals, C6-C12-aryl radicals or C7-C15-aralkyl radicals, with water and hydrogen at from 20 to 300° C. under from 1 to 300 bar in the presence of catalysts or catalyst combinations which comprise components which are both capable of hydrogenation and have acidic or basic centers and a novel process for preparing 1,4-butanediol diethers of the formula I by metathesis are described.

Abstract: A composition comprising effective amounts of a) a carbamate (I)  wherein T is CH or N, n is 0, 1 or 2, and R is halogen, C1-C4-al-kyl or C1-C4-haloalkyl, where the radicals R are identical or different if n is 2, and b) an azole (IV) as defined in the specification which exhibits a synergistically enhanced fungicidal effect is described.

Abstract: Absorber elements are described of at least one composite material having absorbent elements on a support, in which a plurality of elements of a superabsorbent foam are arranged on at least one support in a grid pattern at distances such that the elements in the swollen state touch at their peripheries.

Abstract: The present invention relates to compositions for controlling harmful fungi which comprise, as active ingredients, at least one compound which inhibits respiration on the cytochrome complex III and fenazaquin. The compositions according to the invention are useful in particular for controlling botrytis.

Abstract: An isocyanate-based rigid foam comprising the reaction product of an organic and/or modified organic polyisocyanate, a resin blend and, optionally, a relatively low molecular weight chain extender or crosslinker in the presence of a catalyst, and, optionally, further auxiliaries and/or additives, wherein the resin blend comprises a phthalic anhydride-initiated polyester polyol, a blowing agent comprising a C4-C6 hydrocarbon, and a fatty acid or fatty alcohol ethoxylate compatibilizing agent. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties.

Abstract: The present invention relates to a process for preparing alkyl, alkenyl and alkynyl chlorides from alcohols by reaction with a chlorinating agent in the presence of a catalyst, wherein the catalyst is a urea compound.

Abstract: Modified forms of human interleukin-1&bgr; converting enzyme (ICE) that display proteolytic activity and, furthermore, have increased stability compared to unmodified human ICE are disclosed. Nucleic acid molecules encoding a modified p10 subunit of ICE, and recombinant vectors and host cells incorporating such nucleic acid molecules, are also disclosed. A modified ICE protein of the invention can be used to cleave proteolytically ICE substrates and to identify modulators of ICE activity in screening assays. Moreover, due to its enhanced stability, the modified ICE of the invention is particularly suitable for use in the preparation of ICE crystals for X-ray crystallography.

Abstract: A composite yarn formed of at least two different individual polymeric fibers may be spun by directing at least two streams of different polymer melts (e.g., polymer melts of different colors and/or characteristics) to a spin pack such that one of the streams has a greater volumetric throughput as compared to the volumetric throughput of the other stream. The polymer streams are each distributed within the spin pack among individual filtration chambers so that the filtration chambers receive substantially the same volumetric throughput allotment of the polymer melt streams. In such a manner, the polymer melt streams are distributed among the filtration chambers in substantially equal throughput allotments even though the total throughput of the melt streams of each of the different polymers may be unequal. The filtered polymer melt streams may then be directed through fiber-forming orifices of a spinneret plate to form the composite yarn.

Abstract: The invention relates to carbohydrate derivatives, to a process for their preparation and to their use.

Abstract: Radiation-curable formulations based on ethylenically unsaturated prepolymers and difunctional esters of ethylenically unsaturated carboxylic acids with diols having a linear alkylene chain of 7 to 14 carbon atoms, a process for coating substrates using these radiation-curable formulations, and their use as automotive topcoats.

Abstract: A catalyst comprising at least one nickel(0) complex which comprises at least one mono-, bi- or multidentate phosphonite ligand of the formula I or salts and mixtures thereof, is prepared as described, and the catalysts are used to prepare mixtures of monoolefinic C5 mononitriles with nonconjugated C═C and C≡N bonds by catalytic hydrocyanation of butadiene or of a 1,3-butadiene-containing hydrocarbon mixture in the presence of a catalyst of this type.

Abstract: Novel polythiophene-containing structural units of the general formulae (I) and (II) processes for their preparation, monomers for their preparation, their use in various industrial fields, and an electrically conductive material comprising these.

Abstract: The present invention relates to triboelectrically chargeable powder coating materials to which benzimidazole-based additives are added.

Abstract: A method for preparing neopentyl glycol hydroxypivalate granules by application of a neopentyl glycol hydroxypivalate melt (1) onto a cooling belt (6) on which the melt solidifies, wherein the melt contains at least so 3 wt % of neopentyl glycol hydroxypivalate crystals, based on the total amount of neopenlyl glycol hydroxypivalate.

Abstract: A description is given of a method of crosslinking radiation-crosslinkable pressure-sensitive adhesive films by controlled-dose exposure to actinic radiation, which involves exposing the film surface to a regular or irregular radiation pattern made up of regions of different intensity. The method permits a more precise adjustment of the adhesion—in particular, the adhesion of flexible films on a substrate.