Abstract: The present invention provides thermoplastically workable and completely biodegradable moulding compositions, a process for the preparation thereof and the use thereof as biodegradable materials for the production of, for example, injection-moulded parts, films, fibres or coatings.

Abstract: Polynucleotide and oligonucleotide probes are described for the diagnostic investigation of mycoses which are caused by Candida albicans. These gene probes are complementary to parts of the genome of C. albicans and are suitable for identifying C. albicans nucleic acids in any sample material, even that which has been amplified. They do not hybridise with nucleic acids from other fungi, bacteria, animals or plants. Processes are described for the diagnosis of C. albicans in clinical samples as well.

Abstract: The invention relates to elasthane fibers which are protected against harmful environmental influences, particularly sunlight and combustion gases, by a synergistic stabilizer combination of(a) highly alkylated, phenolic antioxidants corresponding to the following formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are C.sub.1 -C.sub.3 alkyl radicals, in addition to which R.sup.3 may be C.sub.4 -C.sub.6 alkyl radicalsand(b) oligomeric, (cyclo)aliphatic phosphorous acid esters (oligomeric phosphites) obtained by reaction of pentaerythritol, perhydrobisphenol A and, optionally, a mono- alcohol with monomeric trialkyl or triaryl phosphites.

Abstract: The new 1,7,9,15-tetraoxa-4,12-diaza-8-silaspiro-[7.7]-pentadecanes, which are prepared by reaction of corresponding alkoxysilanes with corresponding alkanolamines, are used above all as hardening accelerators for unsaturated polyester resins and acrylic resins.

Abstract: Thermoplastic, easily flowing hydrophobic polyamides obtained by incorporation of from 2 to 15% by weight, based on polyamide, of at least one monoepoxide compound corresponding to the following general formula ##STR1## in which R is a hydrocarbon radical containing at least 4 carbon atoms.

Abstract: The invention relates to thermoplastic molding compositions showing improved properties, more especially improved dimensional stability and notched impact strength, particularly at low temperatures, in the form of a mixture of at least 35% by weight of a copolyamide containing polydiorganosiloxane carbonamide units and/or of a mixture of partly crystalline polyamides and (co)polyamides containing polydiorganosiloxane carbonamide units and from 1 to 65% by weight of graft products of vinyl polymers on rubbers.The invention also relates to the dimensionally stable molding compositions tough at low temperatures characterized above which additionally contain amorphous siloxane-free polyamides added in quantities of up to 64% by weight.

Abstract: The invention relates to a sulphonic acid amidamine corresponding to the following general formula I: ##STR1## wherein R.sup.1 represents a C.sub.8 -C.sub.30 linear, saturated aliphatic hydrocarbon group or said group which is substituted by one or more chlorine atoms;R.sup.2 and R.sup.5 independently represent hydrogen or C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkyl which is substituted with one of the groups: hydroxyl, amino, mercapto, cyano, carboxyl or carbamoyl, and/or is interrupted by at least one oxy (--O--) or thio (--S--) group;R.sup.3 and R.sup.4 independently represent C.sub.2 -C.sub.13 alkylene or C.sub.5 -C.sub.7 cycloalkylene or said alkylene or cycloalkylene groups which are substituted with one of the groups: hydroxyl, amino, mercapto, cyano, carboxyl or carbamoyl;p represents zero or an integer of from 1 to 3;q represents zero or an integer of from 1 to 12; andn represents an integer of from 1 to 8.

Abstract: Metal-plastic laminates are prepared by coating a metal component with a polyurethane adhesion promoter in dissolved or dispersed form, drying the liquid phase and coating with the melt of a thermoplastic by the extrusion coating process.

Abstract: Thermoplastic moulding materials consisting of(1) 70 to 99.9% by weight of a cellulose ester or cellulose mixed ester(2) 0.1 to 30% by weight of a rubber polymer built up in the form of blocks from recurring structural units (I) with molecular weights of 10,000 to 1,000,000--A--B-- IwhereinA denotes bifunctional polysiloxane segements of the formula--(R.sup.1)(R.sup.2)SiO--.sub.x IIin whichR.sup.1 and R.sup.2 =aryl (in particular phenyl) or alkyl (in particular methyl) andx is a number such that the molecular weight is .gtoreq.500, andB denotes bifunctional aliphatic polyester and/or aliphatic polyester segments with molecular weights of .gtoreq.800,and the glass transition temperatures of the polymeric blocks A and B are less than 20.degree. C., which contains additionally(3) 0 to 30% by weight based on the mixture of (1) and (2) of a plasticizer.

Abstract: Energy required for the calcining or drying operations in the production of titanium dioxide by the sulfate process and the chloride process is at least in part provided by burning by-product offgases containing carbon monoxide obtained in the chlorination of titanium-containing raw materials under reducing conditions.

Abstract: A process for the preparation of polymer powders from polymer dispersions by feeding a polymer dispersion continuously into an atomization apparatus and separately therefrom but at the same time also introducing a liquid agent, the dispersion and the liquid agent being completely mixed within at the most one second and the mixture being immediately thereafter dried with evaporation of the volatile constituents to form a powder composed of particles having an average diameter of from 0.05 to 1 mm, and the polymer powders prepared by this process.

Abstract: This invention relates to the use of mixtures of aliphatic-aromatic polyamidimides and polyamides.

Abstract: The invention relates to essentially linear polyurethane elastomers, having improved properties, made from polyester or polyether diols, diisocyanates and chain extenders, the latter having liquid-crystalline properties; and also films and, in particular, fibres which are prepared on the basis of such liquid-crystalline polyurethane components and are shaped thermoplastically (via melting) or from solutions (by solution spinning processes). The invention furthermore relates to an appropriate process for the preparation of the polyurethane elastomers, particularly of PU elastomer fibres (Elasthan and Spandex fibres).

Abstract: Syndiotactic 1,2-polybutadiene of high quality may be obtained in excellent yield by solution polymerization of butadiene-(1,3) in hydrocarbons, using organometallic mixed catalysts composed of trialkylaluminium, hydrocarbon-soluble chromium-III compounds and a dialkylphosphite corresponding to the formula ##STR1## wherein R denotes straight chained or branched C.sub.1 -C.sub.8 -alkyl andR.sub.1, R.sub.2 and R.sub.3 denote methyl or ethyl orR and R.sub.1 together form a methylene group.

Abstract: Fibre-reactive disazo dyestuffs of the formula ##STR1## wherein R.sub.1 to R.sub.4, R.sub.5, R.sub.6 and n have the meaning indicated in the descriptionand their use for dyeing and printing materials containing hydroxyl groups and materials containing amide groups, in particular textile materials.