Abstract: A photosensitive silver halide emulsion which is ripened with at least one compound of the formula (I)R.sub.1 --X--R.sub.2 (I)in whichR.sub.1 and R.sub.2 mutually independently mean groups which are linked to X via an element from periods 3 to 6 of main group 4 or 5 or via an element from sub-groups 4 to 8 of the periodic system of elements, wherein R.sub.1 and R.sub.2 may be attached together via a linking member and wherein the bonds R.sub.1 --X and R.sub.2 --X may mutually independently be single or double bonds, andX means Se or Te,is distinguished by elevated sensitivity, low grain and low fog.

Abstract: The invention relates to a process for preserving liquid and pasty feedstuffs made from potatoes, food residues, spent grains, brewer's yeast, distiller's spent mash and similar constituents, which comprises adding an aqueous potassium sorbate solution and an aqueous solution of a physiologically harmless acid, to the feedstuff using intensive mixers, and the feedstuffs preserved in this manner.

Abstract: There are described polyester fibers and filaments which, following reaction with carbodiimides, have capped carboxyl end groups, the carboxyl end groups being predominantly capped by reaction with mono- and/or biscarbodiimides which are present in the fibers and filaments in an amount of from 30 to 200 ppm, based on the weight of the polyester, the free carboxyl end group content being less than 3 meq/kg of polyester, and the fibers and filaments additionally containing at least 0.02 percent by weight of at least one free polycarbodiimide or of a reaction product containing still reactive carbodiimide groups, and also a process for the preparation thereof.The filaments described are suitable in particular for producing papermaker's machine wire-cloths.

Abstract: Split collars function to releasably attach shelving to a plurality of vertical support posts. Each collar comprises a front half and a rear half with interlocking structure between the collar halves for releasably locking them together. Each split collar has a frusto-conical interior surface, and an upwardly extending shelf supporting hook is integral with one of the collar halves. When the split collars are attached to the support posts the hooks engage and support the shelving, Such shelving may be mounted horizontally or angularly, if desired.

Abstract: A color photographic recording material having at least one silver halide emulsion layer unit containing color coupler, which unit comprises at least two adjacent silver halide emulsion partial layers of the spectral sensitivity concerned, one of which is more sensitive and one less sensitive, contains in a reactive association with at least one more sensitive silver halide emulsion partial layer having a comparatively low color coupler content relative to the silver halide content, a compound (or a precursor compound thereof), which is capable under chromogenic development conditions of forming a substantially colorless, diffusible coupling product with the color developer oxidation product, which coupling product is capable under chromogenic development conditions in the presence of an oxidising agent of forming a dye with a color coupler, with transfer of the residue originating from the color developer.On chromogenic development, color images having improved grain are obtained.

Abstract: The invention relates to a process for preparing aromatic acetylenes of the formula (I): Ar--C.tbd.C--R.sup.8a, where Ar is: ##STR1## by reacting haloaromatics or aryl sulfonates of the formula (II): Ar--X, with monosubstituted acetylenes of the formula (III): Ar--C.tbd.C--R.sup.8a, where Ar is defined above and X is bromine, chlorine or OSO.sub.2 R, in the presence of a palladium compound catalyst of the formula (IV): ##STR2## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 are, independently of one another, hydrogen (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy, fluorine, NH.sub.2, NH-alkyl-(C.sub.1 -C.sub.4), N(alkyl).sub.2 -(C.sub.1 -C.sub.4), CO.sub.2 -alkyl-(C.sub.1 -C.sub.4), OCO-alkyl-(C.sub.1 -C.sub.4), or phenyl, or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.5 and R.sup.6, together form an aliphatic or aromatic ring, and R.sup.7, R.sup.8 are (C.sub.1 -C.sub.8)-alkyl, (C.sub.3 -C.sub.

Abstract: The present invention relates to a process for producing low-salt silica sol dispersions in low-boiling alcohols and to the use of the organosols obtained by this process for the production of coatings on metallic and nonmetallic substrates.

Abstract: The invention relates to new amorphous, high-strength SiBN(C) fibres which are at the same time resistant to high-temperature creep, their production and use.The fibres have a strength at room temperature of >2.5 GPa, a modulus of elasticity of >250 GPa and a creep value m of from 0.4 to 1 (in accordance with standard BSR test, 1 hour, 1400.degree. C.).

Abstract: A filter is formed from a laminate of two sheets having a layer of adsorbent material and a layer of flavor enhancing material in the form of a flavor or supplement layer sandwiched between the sheets. Preferably, the adsorbent layer and the flavor or supplement layer are applied by a printing process.

Abstract: A reinforced door beam has a hollow shell with an internal localized reinforcement. The localized internal reinforcement is positioned at the midspan of the shell and has a length of less than about one-third of the door beam shell. The localized internal reinforcement includes an inner shell which is spaced apart from the door beam shell by a layer of thermally expanded resin.

Abstract: The present invention relates to a process for the production of yellow, highly transparent iron oxide pigments of elevated chemical purity, to yellow iron oxide pigments obtainable in this manner and to the use thereof to color lacquers and plastics.

Abstract: Thermoplastic moulding compositions of the ABS type, containingI) at least one graft polymer, obtainable by emulsion polymerisation of resin-forming monomers in the presence of a mixture comprising a butadiene polymer latex (A) having a particle diameter d.sub.50 of .ltoreq.320 nm, a particle diameter distribution of 30 to 100 nm in width and a gel content of .ltoreq.70 wt. % and a butadiene polymer latex (B) having a particle diameter d.sub.50 of .gtoreq.370 nm, a particle diameter distribution of 50 to 500 nm in width and a gel content of .gtoreq.270 wt. %,II) at least one graft polymer, obtainable by emulsion polymerisation of resin-forming monomers in the presence of a butadiene polymer latex (C) having a particle diameter d.sub.50 of from 110 to 150 nm, a particle diameter distribution of 20 to 50 nm in width and a gel content of from 80 to 98 wt. %, andIII) at least one rubber-free copolymer composed of resin-forming monomersand the use of the moulding compositions for the production of mouldings.

Abstract: The present invention relates to a process for producing inorganic granules and to their use for the coloring of building materials, particularly concrete, asphalt, plaster, mortar and cement mortar, and for the production of paints for the protection of buildings.

Abstract: Thermoplastic moulding compositions containingI) At least one graft polymer which is obtainable by emulsion polymerisation of for example styrene and acrylonitrile under special conditions,II) At least one graft polymer that can be obtained by solution, bulk or suspension polymerisation of for example styrene and acrylonitrile in the presence of a rubber,III) At least one rubber-free copolymer of for example styrene and acrylonitrile,and their use for producing mouldings.

Abstract: A process for the separation of dimethyl ether and chloromethane in mixturesA process for the separation of dimethyl ether and chloromethane in mixtures by two distillation steps. In the first step, the mixture is subjected to an extractive distillation with water, aqueous salt solutions or organic liquids as extractant, the top product being chloromethane. In the second step, the dimethyl ether is separated from the extractant.

Abstract: The low-shrinkage hybrid yarns comprise reinforcing filaments and matrix filaments composed of thermoplastic polymers having a lower melting point than the melting or decomposition point of the reinforcing filaments. The yarns are characterized by a 160.degree. C. hot air shrinkage of not more than 2% and a 200.degree. C. hot air shrinkage of not more than 5%.These yarns are useful for producing composites.

Abstract: The present invention relates to a process for the preparation of SiOH-functional carbosilane dendrimers.

Abstract: Modified or filled rebond polyurethane foam structures having desired plushness and compression without adversely affected tensile strength at a given density as compared to unfilled rebond polyurethane foams are formed from an admixture of shredded or chopped polyurethane foam particles and a finely divided inorganic mineral filler, such as barium sulfate or calcium carbonate or mixtures of these and like mineral fillers, that is further mixed with a substantially non-foam forming liquid prepolymer binder. A portion of the polyurethane foam particles, from about 10 to about 60 parts by weight based upon 100 parts by weight, is replaced with filler. For each 100 parts by weight of the combined foam particles and filler, about 10 to about 30 parts by weight of prepolymer is added. After the wetted admixture is compressed to the required density, the prepolymer binder is cured with heat and/or steam.

Abstract: The invention relates to an organometalic compound of the formula I ##STR1## where M is a metal atom, L are, independently of one another, identical or different .pi. ligands or other electron donors, T is a tin-containing bridge, Y are identical or different and are each a C.sub.1 -C.sub.20 -hydrocarbon group, an amide group, an alkoxy group or a halogen atom and K=0 or 1.The organometallic compound is suitable as catalyst component for olefin polymerization.

Abstract: The invention relates to techniques for manufacturing columnar-grained polycrystalline sheets which have particular utility as substrates or wafers for solar cells. The sheet is made by applying granular silicon to a setter material which supports the granular material. The setter material and granular silicon are subjected to a thermal profile all of which promote columnar growth by melting the silicon from the top downwardly. The thermal profile sequentially creates a melt region at the top of the granular silicon and then a growth region where both liquid and a growing polycrystalline sheet layer coexist. An annealing region is created where the temperature of the grown polycrystalline silicon sheet layer is controllably reduced to effect stress relief.