The invention provides a process for improving the resistance to solvents in finishing and stabilizing fiber materials with textile binders, wherein the textile binder used is an aqueous copolymer dispersion or a redispersible copolymer powder of copolymers with a T.sub.g of -60.degree. C. to +60.degree. C., containing (a) one or more monomer units from the group consisting of vinyl esters of unbranched or branched carboxyli acids with 1 to 12 carbon atoms, esters of acrylic acid and methacrylic...

A heating device is provided comprising a rotary transportation roller and pre-heated powder or granular bodies arranged and disposed around the periphery of said roller so that when a sheet-like, object to be processed is transported by said roller, said powder or granular bodies make direct contact with said object so as to heat the same.

A nonreciprocal circuit element in which some portions of a heat dissipating plate or heat sink which are introduced into a magnetic shield case through apertures thereof are made in close contact with a case which houses microwave ferrite elements and a center conductor. The heat dissipating effect is remarkably improved. BACKGROUND OF THE INVENTION The present invention relates to an improvement of a nonreciprocal circuit element for a circulator system and more particularly an improvement of ...

A method for producing a sensitive material with silver halide giving directly a positive image by exposing the sensitive material to the light to throw a desired image on it and then developing it by conventional method.

The invention provides a power supply filter for noise suppression in which the windings of a plurality of lines for supplying a power supply voltage and current of a predetermined frequency are so wound around same magnetic core that the sum of the magnetic fluxes produced by the windings may become zero, thereby providing an inductance element. This inductance is almost negligible to a power supply frequency component while it is high to a high frequency noise component, so that the power supp...

A device particularly for use with a camera having an electronic flash and a shutter but no diaphragm control so that the flash will be produced at some time before the shutter has completely opened. In order to regulate the light passing through the shutter, in one embodiment a switch is closed when the shutter begins to open to permit a capacitor to discharge through a variable resistor until its voltage reaches a point where two transistors are switched to produce a signal which enables the c...

The invention provides a method for preparing catalysts, containing metals of groups VI and VIII on a carrier. The metals of groups VI and VIII metals are introduced in the form of a compound of formula M.sub.x A B.sub.12 O.sub.40 in which M is cobalt and/or nickel, A is phosphorus, silicon and/or boron, B is molybdenum and/or tungsten and x is 2 or more, 2.5 or more, or 3 or more depending on whether A is respectively phosphorus, silicon or boron. The catalysts thus obtained are useful for hydr...

A crosslinkable powder composition is provided which is redispersible in water and comprises a) from 30 to 95 parts by weight of one or more water-insoluble, film-forming polymers of free-radically polymerizable, ethylenically unsaturated monomers, where from 0.5 to 10% by weight of the monomers, based on the total weight of the polymer a), are ones having one or more substituents selected from the group consisting of aldehyde, keto, epoxide, isocyanate, carboxylic anhydride and aziridine groups...

The invention concerns water-soluble cross-linkable copolymers having a molecular weight of .ltoreq.500000 and comprising a) between 20 and 95 wt. % sulphonic-acid- or sulphonate-group-containing monomer units; b) between 4 and 80 wt. % N-methylol- or N-alkoxymethyl-group containing monomer units; and c) between 0.1 and 20 wt. % hydrophobic monomer units selected from the group comprising water-insoluble ethylenically unsaturated compounds and hydrophobic end groups of initiator radicals or regu...

A method for removing the sulphur compounds H.sub.2 S, SO.sub.2 and at least one of COS and CS.sub.2 contained in a waste gas is provided. In this method, the waste gas is catalytically hydrolyzed to form a hydrolyzed gas containing H.sub.2 S and SO.sub.2, which is free of COS and CS.sub.2. After cooling, the hydrolyzed gas is introduced in one of two Claus catalytic zones mounted in parallel, while the other catalytic zone is regenerated and cooled. The regeneration is carried out with a gas st...