Abstract: A color photographic silver halide material contains on a support at least one red-sensitive, cyan-coupling, at least one green-sensitive, magenta-coupling and at least one blue-sensitive, yellow-coupling silver halide emulsion layer together with interlayers between layers of different colour sensitivity, wherein at least one of the stated interlayers contains at least one masking coupler, the masking coupler having a reaction rate constant for the coupling reaction with the developer oxidation product of .gtoreq.5000 1-mol.sup.- .cndot.s.sup.-1, is distinguished improved sensitivity without increase of granularity.

Abstract: Method for converting two-dimensional or three-dimensional sheet structures consisting of polyacrylonitrile fibres or substantially of polyacrylonitrile fibres, such as woven fabrics, layered materials, knitted fabrics, felts, or non-woven fabrics, into the thermally stabilized but non-carbonized state, by means of an oxygen-containing or oxygen-yielding gas flowing through the respective sheet fibre structure. This gas or gas mixture is used as a medium for the temperature control in the sheet fibre structure and as a means for supplying the oxygen carrier and also removing the gaseous reaction products. Temperature and flow velocity of the gas/gas mixture are matched to the stabilization characteristic of the respective sheet fibre structure and are controlled precisely. The device used for carrying out the method consists of a furnace (23) which consists of at least one chamber, through which furnace a web of the sheet fibre structure (18) is moved continuously.

Abstract: Aqueous external release agent for pneumatic tires which contains a fatty alcohol polyglycol ether and conductive carbon black, for establishing the electrical resistance of the tire.

Abstract: The present invention provides mixtures containing polycarbonates, short glass fibers and polyether silicones as well as a method for preparing these mixtures.

Abstract: Polymer mixtures which comprise at least one thermoplastic and at least one oxidized polyarylene sulfide show particularly good tribological behaviour. The thermoplastics of the mixture are, for example, polyacetal, polyester, liquid-crystalline polymer, polyaryl ether ketone, polysulfone, polyether sulfone, polyphenylene sulfide or polyether imide. The oxidized polyarylene sulfide is preferably polyphenylene sulfone. The polymer mixtures are used for producing gear wheels, gear racks, bearings, chains, pulleys, rollers, wheels or gasket materials.

Abstract: The present invention relates to a process for producing coated bismuth vanadate yellow pigments comprising the following steps:(a) subjecting a reaction mixture comprising a suspension in nitric acid of bismuthyl nitrate and vanadium (V) oxide, or a suspension in nitric acid of bismuth (III) oxide and vanadium (V) oxide, to stirring to form bismuth vanadate particles;(b) terminating the stirring and holding the reaction mixture for a period of time;(c) filtering off the bismuth vanadate particles;(d) washing the bismuth vanadate particles;(e) dispersing the washed bismuth vanadate particles in a hot, phosphate-containing, aqueous solution to activate the surface of the particles;(f) filtering off the activated bismuth vanadate particles;(g) washing the activated bismuth vanadate particles;(h) dispersing the activated bismuth vanadate particles in water to form a suspension;(i) precipitating at least one material selected from the group consisting of hydrated aluminum phosphate, aluminum/zinc phosphate or sil

Abstract: The invention relates to a process for the preparation of a compound of the formula IV or IVa ##STR1## in which R.sup.1 -R.sup.5 are preferably hydrogen or alkyl, which comprises reacting a compound I ##STR2## with a compound II ##STR3## in which X.sup.1 and X.sup.2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydration. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.

Abstract: The present invention relates to a method of making a laminated product, such as an insulator pad comprised of foam and stiffening layers held together with adhesive. A thin protective barrier foam sheet is placed between the surface of a compression roller and the sheets to be laminated together by passing them between compression rollers. The thin protective barrier foam sheet may or may not form the outer layer of the laminated product and prevents adhesive and foam material from contaminating the surface of the roller.

Abstract: The invention relates to cyclic diphosphoric esters of the formula ##STR1## with R=methylethylene, 1,3-cyclohexylene, 1,4-cyclo-hexylene or 1,3-phenylene, a process for their preparation and their use as flame retardants.

Abstract: This invention relates to a process for the production of polycarbonate agglomerate of high bulk density from polycarbonate solutions, in which the organic solvent is stripped from a solution of polycarbonate by means of steam, and which is characterised in that the resulting suspension of polycarbonate particles, condensed water and water- and solvent vapor is fed in a tube or tubular heat exchanger to a separator which is partially filled with water and which is under elevated pressure. The polycarbonate agglomerates are discharged, together with part of the water, via a pressure lock at the bottom of the separator.

Abstract: The present invention relates to plastics comprising a high molecular weight, sterically hindered amine, wherein the sterically hindered amine is at least one amine from the group consisting ofI: oligomerized 2,2,4,4-tetramethyl-20(oxiranylmethyl)-7-oxa-3,20-diazadispiro?5.1.11.2!he neicosan-21-one,II: condensation product of 2-chloro-4,6-di(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triaz ine and 1,2-bis(3-aminopropylamino)ethane, andIII: condensation product of 1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid.These plastics exhibit a reduced rate of uptake of sulfur compounds.The invention further relates to shaped articles made from these plastics.

Abstract: Process for preparing colored regenerated-cellulose fiber, which comprises adding a formulation comprising a cationized polysaccharide and an anionic dye to a viscose dope, an alkali cellulose or a cellulose solution and spinning fiber by a viscose spinning process or from the cellulose solution.

Abstract: The invention provides stabilizer mixtures comprising phosphines, silicon compound and optionally silicon-free oxetane compounds and/or silicon-free epoxide compounds and their use for stabilizing thermoplastic aromatic polycarbonates.

Abstract: The present invention provides polycarbonate moulding compositions containing polycarbonates, stabilisers of the general formula (I)R.sub.1 --X--(CHR.sub.4).sub.n --Y--R.sub.2,where X and Y, are either ##STR1## , and Y may also be --S--, and optionally polypropylene glycols. The present invention also provides use of these moulding compositions for preparing items for medical applications.

Abstract: The present invention relates to compounds of the formula (1) ##STR1## where R is H, a straight-chain or branched alkyl radical with 1 to 6 carbons, a fluorinated straight-chain or branched alkyl radical with 1 to 6 carbons, a benzyl radical, or a benzyl radical substituted by an alkyl group or alkoxy group with 1 to 4 carbons each, or by halogen, X is H, Cl, Br or I, and X is different from R, and a process for their preparation.

Abstract: A pump type fluid dispenser comprises an outer barrel closed at its lower end with a plunger slidably mounted in the upper end of the barrel. A dispensing spout for the fluid within the combined chamber of the barrel and plunger is located at the upper end of the plunger. A leakage collection chamber is disposed around the plunger between the piston head of the plunger and the top of the barrel.

Abstract: Method for coating the surface of polycarbonate moulded parts, with a polycarbonate based on a diphenol of formula (Ia) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, X and m are defined herein, and a material (b), which has been obtained by hydrolytic polycondensation of an aluminum compound of an organofunctional silane and an oxide component.

Abstract: Blends ofA) 80 to 99 wt. % of high molecular weight, thermoplastic, aromatic polycarbonate with a molecular weight M.sub.w (weight average) of at least 10,000, which contains bifunctional carbonate structural units of the formula (I), ##STR1## in which R.sup.1 and R.sup.2 mutually independently mean hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, preferably phenyl, and C.sub.7 -C.sub.12 aralkyl,m means an integer from 4 to 7, preferably 4 or 5,R.sup.3 and R.sup.4 individually selectably for each X, mutually independently mean hydrogen or C.sub.1 -C.sub.6 alkyl andX means carbon,providing that on at least one atom X, R.sup.3 and R.sup.4 simultaneously mean alkyl,B) 1 to 20 wt. % of a terpolymer prepared from 60 to 70 wt. % of ethylene, 37 to 20 wt. % of an acrylic acid ester of a C.sub.2 -C.sub.12 alcohol and 3 to 10 wt. % of a monomer with epoxy groups.

Abstract: Thermoplastic molding compositions containing:A. A thermoplastic polymer of ethylenically unsaturated monomers or a polycondensate of bifunctional reactive compounds,B. 0.01 to 50, preferably 0.1 to 10 parts by weight per 100 parts by weight of (A) of extremely finely divided inorganic powder with a mean particle diameter of 1 to 200 nm, preferably 1 to 150 nm, in particular 1 to 100 nmandC. 0.1 to 50, preferably 0.5 to 20 parts by weight per 100 parts by weight of (A) of flame retardant.

Abstract: The invention relates to a process for the addition of HF to halogenated alkenes by reacting these with at least one hydrofluoride of the formula ?B.n HF!, in which B is an organic nitrogen base and n is an integer or fraction .ltoreq.4, it being intended that the reaction of perfluoroisobutene CF.sub.2 .dbd.C(CF.sub.3).sub.2 is excluded.