Method for improving the strength and impermeability of soils and engineering structures by forming a hydrogel composed of silicic acid and a cross-linked swellable organic polymer in or on the soil or structure treated. According to the invention an aqueous solution of a silicic acid gel precursor is contacted with a water-soluble gel-forming vinyl monomer in the presence of a redox polymerizatio...

A new stable derivative of ascorbic acid, ascorbate 2-polyphosphate, is disclosed, together with a high-yield method of synthesis thereof. The method preferably includes steps of reacting an ascorbic acid such as L-ascorbic acid or a derivative thereof such as 5,6-O-isopropylidene-L-ascorbic acid with salts of metaphosphoric acid in an aqueous system and in the presence of sufficient base to maint...

A first line of cellular defense against many viruses, including those causing AIDS, is activation of an intracellular biochemical system termed the 2'-5' oligoadenylate/RNase L pathway. It is well known that this pathway malfunctions in individuals with progressive AIDs-related immune dysfunction, but the mechanism of malfunction remained obscure. An inhibitor substance, released in HIV infected ...

Liquid detergent compositions suitable for laundry use consist essentially of water, Electrolyte, Active Ingredient and preferably a Builder. They comprise a space-filling, floc-like aggregate of surfactant containing spherulites, substantially cocontinuous with an aqueous liquid micellar solution. They are shear thinning, mobile, stable to shear stress, storage under extreme climatic conditions a...

A refractory plate assembly for use in a sliding closure unit includes a plate-shaped refractory member having therethrough at least one discharge opening and a metal jacket surrounding the peripheral edge of the refractory member. Such assembly is constructed by providing the refractory member with at least one indentation extending inwardly from the peripheral edge of the refractory member. A me...

A bioaffinity separation method is provided along with a solid affinity support utilized in that method. Additionally, immobilized enzyme systems are provided for use as enzyme electrode systems. The support is based on an inert carrier with ligands or binders attached to its surface. Methods for preparing such supports and their use in capturing target molecules from samples and in analytical app...

Alkyl ethers of polygalactomannans wherein the alkyl groups contain 1 to 4 carbon atoms are further modified with long chain aliphatic epoxides wherein the long chains contain 8 to about 28 carbon atoms. The resulting derivatized polygalactomannans are particularly useful as thickening agents for aqueous systems.

Process of manufacturing felts in which a batt is fastened to a felt on its one or two sides, said batt (5) consisting of one or several layers of fibers and characterized in that said layers are obtained from carding the fibers and possibly preneedling them by passage through a preneedling machine with low density needles, said layers being densified by at least three passages through a needling ...

Arylpiperazinyl-ethyl(or butyl)-heterocyclic compounds and their pharmaceutically acceptable acid addition salts are neuroleptic agents. They are useful in the treatment of psychotic disorders.

Arylpiperazinyl-ethyl(or butyl)-heterocyclic compounds and their pharmaceutically acceptable acid addition salts are neuroleptic agents. They are useful in the treatment of psychotic disorders.

The present invention relates to a process for producing biogas by fermentation of, preferably, high-viscosity media, in which the fermentation takes place in a fermentation tank (21), and there are provided for mixing the fermentation medium approximately plate-like mixing bodies (11) which can be moved along the entire tank axis and which, in each case, mix only one layer which comprises almost ...

A combustible briquet is provided having a clay carrier for the flavor producing carbonaceous and/or fibrous materials which prevents the briquet from flaking or otherwise disintegrating during the combustion process so as to allow for gas and electric grill convenience with charcoal briquet flavor.

Tank arrangement for treating a liquid, in particular waste water, and intended, for example, for separation of grease, oil and/or sludge, where the liquid must have a specific dwell time and an incoming stream of liquid must be admixed with the quantity of liquid present in the tank 10 in a rapid but smooth manner, without disturbing the separation process/processes in the tank. A lowered inlet 1...

The scissor links (2) are used to regulate the position of the work bench heightwise. This can be adjusted by sockets (22, 23) connected to a screw-threaded bar (21), which enables them to adopt differing height positions dependent upon the setting on the screw-threaded bar (21).

By employing chromatic lenses in magnifying glasses, the picture field with different colours appears to an observer to be located in different planes, thus providing a stereoscopic effect. In this way, maps and charts can take on a relief effect and pictures can be obtained by cloths with differently coloured yarn structure. Schemes can also be illustrated of conduit layouts with depth effect.

The arms (1) are parallel to one another and spaced apart and aside from bing articulated to the frame (2) at one end are completely separate from it. The frame and arms can be pivoted in relation to one another by a jack mechanism (4). This movement is from a first loading position in which the arms are on or near the ground surface where they can be inserted beneath a hay bale, to a transport or...

A heat-insulating hose 12 can be produced by bending together a mat according to the invention, which consists of a number of rectangular elastically flexible sheets of a heat-insulating material, the sheets being enclosed in pockets formed by welding two films together. The side edges 10A, 10B of the mat overlap one another when the mat is bent to form a hose and are held in position by means of ...

The storage accommodation (2) consists of at least one and pref. four, tunnels running radially and horizontally from the shaft (1), in which are one or more tanks (3), pref. of steel, for the condensed natural gas. - The tanks are connected by pipes through the shaft with the cooling, compressing and pumping unit (4). They are insulated with a layer (5) of suitable material, pref. perlite, fitted...