Abstract: The present invention relates to a method for treating an inkjet recording element to improve the image quality of such an element. The method comprises the applying of a solution of an aluminosilicate polymer on said recording element, said aluminosilicate polymer being obtainable by a preparation method consisting in treating an aluminum halide with an alkyl orthosilicate only having hydrolisable substituents or with a mixture of at least one silicon alcoxide only having hydrolisable substituents and at least one silicon alcoxide having a non-hydrolisable substituent with an aqueous alkali in the presence of silanol groups, the aluminum concentration being maintained less than 0.3 mol/l, the Al/Si molar ratio being maintained between 1 and 3.6 and the alkali/Al molar ratio being maintained between 2.

Abstract: The invention relates to a dressing or bandage comprising a dispersion of at least one transition metal in an imogolite or allophane matrix. In particular, it is intended for the manufacture of transparent dressings.

Abstract: The present invention relates to a concentrated solution for photographic reversal baths, and to a ready-to-use reversal solution, for limiting the growth of microorganisms and biofilm formation.

Abstract: The present invention relates to a composite material with an improved structure in which is dispersed an active organic compound, and a method for treating effluents, in particular a method for treating photographic effluents.

Abstract: An inorganic polymeric aluminosilicate material and a method for preparing the same, are disclosed. Instead of having a fibrous structure, the material has a structure consisting of spindles with a length in the range of from 10 to 100 &mgr;m and a width in the range of from 2 to 20 &mgr;m. This polymeric alumino-silicate can be used for the production of antistatic layers.

Abstract: The invention relates to a method for separating a mixture of aluminosilicates, wherein said method consists in carrying out an ultrafiltration of a solution of colloidal aluminosilicate particles so as to obtain a permeate and a retentate, and an imogolite like fibrous aluminosilicate polymer of high purity with an Al:Si molar ratio between 1.8 and 2.5 is obtained in the retentate, and allophanes like spherical aluminosilicate particles are obtained in the permeate.

Abstract: The present invention relates to a composite material with an improved structure in which is dispersed an active organic compound, and a method for treating effluents, in particular a method for treating photographic effluents. The composite material takes the form of a structured gel comprising an aluminosilicate polymer matrix in the form of fibers in which at least two distinct fibers are interconnected by at least two covalent bonds to form an irreversible chemical gel and, dispersed in the matrix, an active organic compound. The choice of the degree of cross-linking of the matrix makes it possible to control the diffusion of a hydrophilic active organic compound. The invention further concerns a method for preparing such a composite material.

Abstract: The invention concerns thermo-reversible materials. A material according to the invention comprises a support having grafted thereon a layer of a thermo-reversible polymer that can change from a hydrophilic state to a hydrophobic state depending on the temperature. This material can be used for the decontamination of aqueous effluents.

Abstract: The present invention relates to a material and a method for treating of photographic effluents in order to eliminate microorganisms and pollutant by-products so as to control bacterial growth and thereby obtain effluents that comply with regulatory requirements. The method for preparing an oxidizing material according to the invention comprises the dispersion in colloidal form of a metal or metal compound in an aqueous solution of an inorganic aluminosilicate polymer, said aluminosilicate being able to form an inorganic gel, and said metal or metal compound being able to cause the oxidation of oxidizable products and (or) micro-organisms to be eliminated, followed by the addition of a base to cause said aluminosilicate to gel. The metal is preferably silver in a powder form that is able to form a colloid when it is dispersed. The oxidizing material of the invention is efficient especially for the treatment of photographic baths, in particular wash baths placed after the fixing step.

Abstract: The present invention relates to a method for preparing a silver halide photographic emulsion, comprising the steps of a) providing a nucleation medium comprising an aqueous composition based on a hydrophilic colloid and a non-ionic antifoaming agent; b) precipitating silver halide nuclei in said nucleation medium; c) growing said silver halide nuclei to form a silver halide photographic emulsion; and d) removing the non-ionic antifoaming agent from the nucleation medium by contacting the silver halide photographic emulsion resulting from step c) with a material that has surface lipophilic functions.

Abstract: This invention concerns the developing of silver halide photographic products. Silver-laden slurries accumulate in developing baths. It is possible to eliminate these silver-laden slurries by placing the developing baths in contact with aluminosilicate polymers modified by sulfur groups. For example, a tank 12 is fitted with a loop to feed the bath through a cartridge 16 that contains the elements 18 that are permeable to the developing bath, and which contain the aluminosilicate polymer modified by the sulfur groups.

Abstract: The present invention relates to a material and a method for treating of photographic effluents in order to eliminate micro-organisms and pollutant by-products so as to control bacterial growth and thereby obtain effluents that comply with regulatory requirements. The method for preparing an oxidizing material according to the invention comprises the dispersion in colloidal form of a metal or metal compound in an aqueous solution of an inorganic aluminosilicate polymer, said aluminosilicate being able to form an inorganic gel, and said metal or metal compound being able to cause the oxidation of oxidizable products and (or) micro-organisms to be eliminated, followed by the addition of a base to cause said aluminosilicate to gel. The metal is preferably silver in a powder form that is able to form a colloid when it is dispersed. The oxidizing material of the invention is efficient especially for the treatment of photographic baths, in particular wash baths placed after the fixing step.

Abstract: The invention concerns thermo-reversible materials.

Abstract: The present invention relates to a method for preparing a silver halide photographic emulsion, comprising the steps of

Abstract: The present invention relates to a composite material with an improved structure in which is dispersed an active organic compound, and a method for treating effluents, in particular a method for treating photographic effluents.

Abstract: The invention relates to a method to prepare an aluminosilicate polymer of the imogolite type. The method consists in treating an aluminium halide, with an alkyl orthosilicate, with an aqueous alkali in the presence of glass or silica particles, letting the mixture ripen at ambient temperature, and then heating it at 96-98° C. for long enough for the reaction to go to completion. The conditions of synthesis of the aluminosilicate polymer are thereby improved.

Abstract: The present invention relates to a device for controlling fluid movements. The device includes a fluid guiding device, and a fluid moving device which includes polymers whose hydrophilic and hydrophobic properties can be selected under the action of an external force. The fluid moving device comprises a plurality of polymer elements whose hydrophilic and hydrophobic properties can be selected. The elements are arranged along the guiding device and at least one actuating unit is used to generate the external force.

Abstract: The invention relates to a method for separating a mixture of aluminosilicates.

Abstract: The invention relates to a method to prepare an aluminosilicate polymer of the imogolite type. The method consists in treating an aluminium halide, with an alkyl orthosilicate, with an aqueous alkali in the presence of glass or silica particles, letting the mixture ripen at ambient temperature, and then heating it at 96-98° C. for long enough for the reaction to go to completion. The conditions of synthesis of the aluminosilicate polymer are thereby improved.

Abstract: The present invention relates to a device for moving a fluid which can be used in the ink jet printing art. The device of the present invention includes a mechanism for moving the fluid by using polymers. The polymers have hydrophilic or hydrophobic properties that can be selected under the action of an external stress.