This invention relates to a liquid composition comprising a C3-C8 carboxylic acid, an ion selected from NH4+ and a Group I or Group II metal according to the Periodic Table due to Mendeleef, and water, the ratio of acid to cation is between 2.1 and 4:1 on a chemical equivalent basis.

An improved process for the manufacture of vesiculated beads has been developed which can be used for the production of semi-gloss or satin finished paints. The process involves mixing an oil-phase containing a cross-linkable polyester resin in solution with a monomer co-polymerizable with the resin and an aqueous phase containing an emulsifying agent under conditions such that globules of the oil...

An inert, water-immiscible inert organic liquid having gas transport properties, water and a suitable emulsifying agent are formed into a stable gel by emulsifying a mixture of the same, concentrating the emulsion to form a gel phase and a liquid phase, and separating the two phases. The resulting gel can be used as an ointment or cosmetic for skin irritations or wounds, or as a coating in industr...

A process for the treatment of a spent hydrochloric acid solution containing dissolved iron, zinc, and minor amounts of heavy metals to remove such dissolved metals from the solution, which process comprises contacting said solution with metallic iron in a first stage, whereby trivalent iron present in the solution is reduced to divalent iron and certain of said heavy metals may be reduced to elem...

A polymerizable composition particularly for dental use, comprises at least one methacrylate monomer having 2 to 4 polymerizable double bonds, from 0 to 400% based on the monomer of inorganic particulate filler, from 0 to 5% based on the monomer or silane coupling agent, an effective catalyst-activating amount of accelerator comprising copper ion and from 0.5 to 5.0% based on the monomer of (a) an...

A porous ceramic material composed of a sintered porous body of a calcium phosphate compound is described. A multiplicity of capillary void paths having a diameter of 1 to 30 mu m and a multiplicity of pores having a diameter of 1 to 600 mu m are formed in the sintered porous body. At least part of the pores are connected to the exterior space of the sintered porous body through at least a part ...

1. Method for the biological processing by activated sludge of night soil or septic tank sludge, having the following characteristics : dry material : 6-40 Kg/m**3 volatile material : 65-80% of dry material DBO(5) : at least 5-15 Kg/m**3 DCO (bichromate) : 10-45 Kg/m**3 of the type where the said septic tank sludge or night soil undergoes a biological activation process with a gas having a high ox...

The invention relates to a plant for the combined mechanical and biological purification of waste waters (effluents) composed of two cylindrical vessels having an interior divided into three independent zones. The object of the invention is to create a simply constructed waste water purification plant for the combined mechanical and biological purification of waste waters by the activation princip...

The solution concerns resistant hardened material for basic aggressive effects mainly for the construction of seal plates in aggressive basic soils and/or in subterranean waters. The material consists of 10 to 50 % weight of blast-furnace slag, 2 to 15% weight of a basic activation substance, 1 to 70 % weigh of solid granular admixture, 20 to 70% weight of water and, respectively, 1 to 17% weight ...

An apparatus for applying gasket material to the skirt of a gasket for the valve mounting cup of an aerosol container, comprises a mandrel (32) having a fixed portion (44) and a movable portion (42) which carries a sleeve of gasket material (30). A pin (38) locates the portion (44). An upper gripping member (46) closes on the portion (42) and moves downwardly to push the head of the sleeve over a ...

Liquor-clarifying apparatus comprises a tank 1, inlets 2 for suspension to be clarified, outlets 3 for clarified water, outlet 4 for sedimented solids, and a plurality of settling assemblies each comprising a stack 6 of downwardly inclined plates 7 mounted around a vertical collection duct 39. This duct generally comprises a downwardly extending duct 18 that leads directly into an upwardly extendi...

The compounds of the formula in which A represents 6-amino-9H-purin-9-yl or 2-amino-6-hydroxy- 9H-purin-9-yl in which the amino group can be replaced by NHC(O)R<2> or N=CHR<3>R<4> and R is OH or OC(O)R<1>, where R<1>, R<2>, R<3> and R<4> independently of one another denote straight-chain or branched C1-20-alkyl, C1-12-alkoxyalkyl, substituted or unsubstituted phenoxy-C1-4-alkyl, phenyl o...

PCT No. PCT/FR85/00197 Sec. 371 Date Apr. 18, 1986 Sec. 102(e) Date Apr. 18, 1986 PCT Filed Jul. 18, 1985 PCT Pub. No. WO86/00906 PCT Pub. Date Feb. 13, 1986.The process comprises the action of a saturated aliphatic or cycloaliphatic alcohol or an aliphatic or cycloaliphatic alcohol comprising a double ethylenic bound not situated in alpha of the hydroxyl group with an aldose, aldoside or polyaldo...

A blade extractor (1) for a replaceable blade instrument or tool (3), which comprises upper and lower tabs (12, 13) of length slightly exceeding that of a blade (2) to be extracted, and of width slightly exceeding that of a blade (2) to be extracted with side skirts (16, 17) provided on one or both tabs (12, 13), abutment means (22) provided on one tab (12), and with the tabs (12, 13) being hinged...

Compounds of the formula I wherein A is C1-8-alkylene, R1 is halogen, C1-4-alkyl or halo-(C1-4-alkyl), R2 is hydrogen, hydroxy or acyloxy, R3 is hydrogen or C1-4-alkyl, R4 is aryl or aryloxy and X is O or NH, and tautomers thereof are described. The compounds of formula I and their tautomers possess antiviral activity and can be used in the form of medicaments for the control and prev...

Compounds of the formula I wherein R1 is halogen, C1-4 -alkyl or halo-(C1-4- alkyl), R2 is hydrogen, hydroxy or acyloxy, R3 and R4 each are hydrogen or C1-4-alkyl, R5 is aryl or aryloxy, X is O or NH and Y is -CO-CH2-, -CH(OH)-CH2-, -CH2-CH2-, -S-, -SO- or -SO2-, and tautomers thereof are described. Compounds of formula I and their tautomers possess antiviral activity and can be used ...

The invention relates to a device for the photoelectric measurement and recording of arbitrary and non-arbitrary eye movements by diffuse irradiation of the eye with IR light. It is especially applied in the medical field for investigation of the vestibular system and eye mobility and for determining the line of fixation. The object of the invention is to provide a nystagmograph by using the conve...

This control system for a roller-blind or the like comprising swivel blades coupled to a master blade carrying at one end a stud adapted, during its downward movement, to travel in a slide groove disposed behind a rocker and, during its upward movement, to engage both the slide groove, and the rocker, this control system comprises a microcomputer having stored in its non-volatile memory a control ...

A device has an elongated body with a through longitudinally extending passage. An inflatable cuff is provided intermediate the ends of the body, and an inflatable vessel is secured to one end of the body and communicates with the passage. The cuff is mounted for movement on the body and a tube is rigidly and sealingly secured therein for receiving an instrument. An extension of the tube may be pr...