Abstract: A process for producing a conductive supported yarn includes melt spinning non-conductive nylon filaments into a first set of filaments, separating at least one of the filaments from the freshly spun first set into a second set of filaments, providing the second set of filaments to a suffusion coating process so that the suffusion coated second set has a resistivity of between about 10.sup.6 and about 10.sup.9 .OMEGA./cm, and then recombining the first set and the second set to form a supported yarn.

Abstract: Aqueous dispersions containing a polyurethane and from 5 to 60% by weight, based on the polyurethane, of an adhesion-improving polymer, the polyurethane consisting essentially of(a) organic diisocyanates,(b) dihydroxy compounds which have a molecular weight of from more than 500 to 5,000 g/mol and contain no ionic groups or groups convertible into ionic groups,(c) compounds having one or two functional groups reactive toward isocyanate and at least one ionic group or group convertible into an ionic group and(d) compounds having at last 3 isocyante groups or at least 3 functional groups reactive toward isocyanate,(e) optionally compounds which differ from (c) and have two functional groups reactive toward isocyanate and a molecular weight of from 60 to 500 g/mol, the compounds (d) being used in amounts such that the functionality F of all components is from 2.01 to 2.5, and the polyurethane or a prepolymer thereof is prepared in a water-miscible solvent boiling below 100.degree. C.

Abstract: Novel ethylene homopolymers and ethylene copolymers which are suitable for film production and have a density from 925 to 940 kg /m.sup.3, a melt flow index (MFI) of <1 g/10 min at 190.degree. C. and at an applied force of 2.16 kp can be prepared by free radical polymerization of the monomers at from 500 to 5000 bar and reaction temperatures T of from 40.degree. to 320.degree. C. by means of an initiator with virtually complete exclusion of oxygen in at least n=3 polymerization stages. In the first stage, the total amount or the predominant part of the monomers is subjected to the polymerization by means of part of the required initiator until the polymerization virtually comes to a stop. A further part of the initiator and, if required, of the monomers is then added to the mixture cooled to 20.degree.-60.degree. C. This process is repeated in the subsequent stages until the n th stage, at least the initiators used in the n th stage having a half-life temperature of from 90.degree. to 260.degree. C.

Abstract: An aqueous resin solution for the impregnation of paper webs contains 2-40 parts by weight of a polyurea composed of urea and of a polyamine per 100 parts by weight of a melamine/formaldehyde precondensate. The impregnated paper webs are suitable for coating woodbase materials, especially chipboard.

Abstract: A process for the manufacture of 1,2-propylene glycol, wherein dihydroxyacetone is hydrogenolytically converted to 1,2-propylene glycol in a single stage using a catalyst.

Abstract: Azo dyes useful for dyeing or printing textile fibers or fabrics and for thermal transfer have the formula ##STR1## where R.sup.1 and R.sup.2 are each substituted or unsubstituted C.sub.1 -C.sub.10 -alkyl or substituted or unsubstituted C.sub.3 -C.sub.4 -alkenyl or R.sup.1 may also be hydrogen,R.sup.3 is hydrogen or C.sub.1 -C.sub.6 -alkyl,R.sup.4 and R.sup.5 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, halogen, C.sub.1 -C.sub.6 -alkoxy, amino or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino, andD is a radical of the thiophene, thiazole, isothiazole, benzothiophene, thienothiophene or thienothiazole series.

Abstract: Hair setting composition containing as film formers copolymers based on tert-butyl acrylate and/or tert-butyl methacrylate, having a K value of from 10 to 50 and obtainable by free radical polymerization ofA) from 75 to 99% by weight of tert-butyl acrylate and/or tert-butyl methacrylate,B) from 1 to 25% by weight of acrylic acid and/or methacrylic acid andC) from 0 to 10% by weight of a further free radical copolymerizable monomer,the carboxyl groups of the copolymers having been partly or wholly neutralized by amines.

Abstract: The invention relates to transparent, autoclavable, non-cytotoxic, essentially compact polyurethane embedding compositions which are prepared by reactinga) modified diphenylmethane diisocyanates withb) compounds with at least two reactive hydrogens, which contain or are composed ofb1) at least one polyether-polyol with an average functionality of from 3 to 8, a hydroxyl number of from 200 to 1000 and an alkali metal ion content of from 150 to 1200 ppm or, preferably, a mixture of (b1) and castor oil and/or at least one polyetherpolyol (b2) with a functionality of from 2 to 3, a hydroxyl number of from 90 to 200 and an alkali metal ion content of less than 10 ppm in the presence or absence ofc) catalysts and to a process for preparing the polyurethane embedding compositions and to the use thereof for articles used in medicine.

Abstract: A method for the concentration and purification of biomolecules is described and comprises introducing the biomolecule into an aqueous/organic solvent system and bringing about a phase separation by addition of salts, where the pH at which the concentration takes place, the solvents suitable for the aqueous/organic solvent system, and the nature of the salt are determined in a series of tests one embodiment concerns concentration of hirudin by using propanol, butanol or acetone a the solvent and sodium chloride as the salt.

Abstract: A process for preparing 3-(hydroxyphenyl)propionaldehydes of the formula I ##STR1## and, where appropriate, for preparing 3-(hydroxyphenyl)propanols of the formula II ##STR2## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.20 -cycloalkyl, C.sub.4 -C.sub.20 -alkylcycloalkyl, C.sub.4 -C.sub.20 -cycloalkylalkyl or C.sub.5 -C.sub.20 -alkylcycloalkylalkyl,R.sup.3 and R.sup.4 are each aryl, C.sub.7 -C.sub.20 -aralkyl, heterocycloalkyl or C.sub.3 -C.sub.20 -heterocycloalkylalkyl, entailsa) reacting phenols of the formula III ##STR3## where R.sup.1 and R.sup.2 have the abovementioned meanings, with 3-hydroxypropionaldehydes of the formula IV ##STR4## where R.sup.3 and R.sup.4 have the abovementioned meanings, in the presence of a basic catalyst at from 90.degree. to 230.degree. C. and under from 0.01 to 50 bar and, where appropriate,b) treating the resulting 3-(hydroxyphenyl)propionaldehydes of the formula I ##STR5## where R.sup.1, R.sup.2, R.sup.3 and R.sup.

Abstract: In a miniaturizable, capacitively measuring chemical semiconductor-based sensor system consisting of a sensor and a reference element which are to be brought into contact with the electrolyte to be measured, the reference element being connected in series with the sensor, the reference element consists of a highly doped semiconductor substrate or metal/semiconductor substrate which is covered with a membrane, and the sensor consists of an insulator/semiconductor substrate which is coated with a sensitive membrane, and the sensitive membrane of the sensor is more sensitive than that of the reference element.The sensor and the reference element of this sensor system may either be applied to one and the same chip or consist of individual components which are readily interchangeable with one another.

Abstract: A thermoplastic molding composition composed of, based on the total of A, B, C and D,40-95% by weight of a copolymer A of, based on A,90-95% by weight of styrene and/or its derivatives and 10-50% by weight of acrylonitrile, optionally up to 50% by weight of a graft copolymer B of 20-80% by weight of a monomer mixture of either styrene/acrylonitrile in the ration from 9:1 to 4:6 or styrene/acrylonitrile/methylacrylate in the ration from 19:1:1 to 8:6:6 onto 80-20% by weight of an elastomer based on butadiene or acrylic ester as grafting base, graft copolymerization being effected in either emulsion or solution, 1-50% by weight of a reinforcing glass fiber material C and 0.1-50% by weight of a terpolymer D of styrene, methyl methacrylate and maleic anhydride composed of 1-15% by weight each of styrene and maleic anhydride and a styrene/maleic anhydride ratio of from 5:1 to 1:5, and methyl methacrylate.

Abstract: A process for the production of microstructure elements having structure depths of from several .mu.m into the mm range by imagewise irradiation of polymers with X-rays and removal of the areas of the polymers which have been irradiated imagewise, comprises applying the polymers, before the imagewise irradiation, to an electroconductive substrate in a layer thickness of from several .mu.m into the mm range by melting under pressure, thus firmly anchoring the polymers.The process according to the invention is particularly suitable for the production of microstructure elements having structure depths of from 3 to 2000 .mu.m and lateral dimensions of less than 10 .mu.m.

Abstract: Anthraquionone dyes are transferred by diffusion or sublimation from a carrier to a plastic-coated substrate with the aid of an energy source by using a carrier on which one or more anthraquinone dyes I ##STR1## where X is hydrogen or cyano,R.sup.1, R.sup.2 and R.sup.3 independently of one another are each hydrogen,alkyl, alkanoyloxyalkyl, alkoxycarbonyloxyalkyl or alkoxycarbonylalkyl, each of which may be of up to 20 carbon atoms and may be substituted by halogen, hydroxyl or cyano,phenyl or benzyl, each of which may be substituted by C.sub.1 -C.sub.15 -alkyl or C.sub.1 -C.sub.15 -alkoxy anda radical of the formula II[--W--O]n--R.sup.4 IIwhereW is identical or different C.sub.2 -C.sub.6 -alkylene radicals,n is from 1 to 6 andR.sup.4 is C.sub.1 -C.sub.4 -alkyl or unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted or C.sub.1 -C.sub.4 -alkoxy-substituted phenyl, are present.

Abstract: The present invention relates to bisguanidine derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 are each, independently of one another, hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, haloalkenyl; or cycloalkyl which has 5-12 carbon atoms in the ring and may be substituted, or benzyl which may be substituted, with the proviso that only one of R.sup.1 and R.sup.2 can be hydrogen; orR.sup.1 and R.sup.2 are, together with the atoms which they substitute, a heterocyclic ring which may be substituted;X is CH.sub.2, O, a single bond, NH, N-alkyl or N-benzyl whose phenyl ring may be substituted,n is 5 to 8,and their plant-compatible acid addition salts and their metal complexes and fungicides containing these compounds.

Abstract: Use of a mixture of from 5 to 95% by weight of an azidosilane of the formulaN.sub.3 --R.sup.3 --Si--R.sup.1.sub.n (OR.sup.2).sub.3-n Iwhere R.sup.1 is C.sub.1 -C.sub.3 -alkyl, phenyl, benzyl or tolyl, R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkoxyalkyl, phenyl or benzyl, R.sup.3 is C.sub.1 -C.sub.8 -alkylene, which may be interrupted by oxygen, sulfur or --(N--R.sup.4)-- in which R.sup.4 is hydrogen, methyl, ethyl or phenyl, and n is 0, 1 or 2, and from 5 to 95% by weight of an aminoalkoxysilane of the formulaH.sub.2 N--R.sup.5 --Si--R.sup.6.sub.m (OR.sup.7).sub.3-m (II)where R.sup.5 is C.sub.1 -C.sub.6 -alkylene, C.sub.5 -C.sub.6 -cycloalkylene or C.sub.5 -C.sub.6 -arylene, each of which may be additionally substituted by one or two C.sub.1 -C.sub.3 -alkyl groups, and R.sup.6 and R.sup.7, independently of one another, are C.sub.1 -C.sub.6 -alkyl or C.sub.5 -C.sub.6 -cycloalkyl, each of which may likewise be additionally substituted by one or two C.sub.1 -C.sub.

Abstract: The invention relates to a hardenable composition containingA) compounds having at least two activated double bonds (I) based on .alpha.,.beta.-unsaturated carbonyl compounds, .alpha.,.beta.-unsaturated carboxylic acid esters or .alpha.,.beta.-unsaturated nitrile groups,B) compounds containing either at least one primary amino group which is blocked by an aldehyde or ketone having not more than 10 C atoms or at least 2 groups which can be hydrolyzed to NH groups, andC) customary additives, if appropriate catalysts, if appropriate pigments and organic solvents.Either component A or component B or components A and B are based on a branched soluble acrylate copolymer P, which is obtainable by copolymerization ofa) 5 to 30% by weight of monomers having at least two ethylenically unsaturated polymerizable double bonds,b) 5 to 60% by weight of monomers having a functional group andc) 5 to 90% by weight of other ethylenically unsaturated monomers,the sum of a, b and c being 100% by weight.

Abstract: Aqueous polymer dispersions obtainable by incorporating into an aqueous starting dispersion containingA) from 25 to 60% by weight, based on the starting dispersion, of a polymer A as the disperse phase, built up froma) from 3 to 55% by weight of one or more .alpha.,.beta.

Abstract: Phenoxyalkyl-substituted heteroaromatics of the general formulae Ia and Ib ##STR1## where A is an unsubstituted or substituted heteroaromatic radical having 6 5 ring members and 1, 2 or 3 nitrogen atoms in the ring, R.sup.1 is hydrogen, halogen or C.sub.1 -C.sub.3 -alkyl. R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl. Q.sub.a is an unsubstituted or substituted azole radical and Q.sub.b is a substituted or unsubstituted heteroaromatic radical which has a five-membered ring,and their use for combating pests.

Abstract: An oil and gas well cementing composition has styrene/ butadiene latex and a combination of nonionic and anionic surfactants for improved physical properties, especially fluid loss.