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 an inkjet recording element having good dye keeping properties in time and good image quality. Said inkjet recording element comprises a porous polyester support and at least one ink-receiving layer, said ink-receiving layer comprising at least one hydrosoluble binder and at least one aluminosilicate polymer obtainable by a preparation method consisting in treating an aluminum halide with a mixture of at least one silicon alkoxide only having hydrolyzable substituents and at least one silicon alkoxide having a non-hydrolyzable 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/A 1 molar ratio being maintained between 2.3 and 3; and then stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the hybrid aluminosilicate polymer.

Abstract: The present invention relates to an inkjet recording element having very good dye keeping properties in time. Said inkjet recording element comprises a support and at least one ink-receiving layer, said ink-receiving layer comprising at least one hydrosoluble binder and at least one aluminosilicate polymer obtainable by a preparation method consisting in treating an aluminum halide with an alkyl orthosilicate only having hydrolyzable functions 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 2.3 and 3; and then stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the aluminosilicate polymer. The ink-receiving layer also comprises inorganic particles.

Abstract: The present invention relates to an ink jet recording element having very good dye keeping properties in time. Said ink jet recording element comprises a support and at least one ink-receiving layer, said ink-receiving layer comprising at least one hydrosoluble binder and at least one aluminosilicate polymer obtainable by a preparation method consisting in treating an aluminum halide with an alkyl orthosilicate only having hydrolyzable functions 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 2.3 and 3; and then stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the aluminosilicate polymer.

Abstract: The present invention relates to a method for preparing an aluminosilicate polymer and the polymer resulting from this method. Said method consists in treating an aluminum halide with an alkyl orthosilicate only having hydrolyzable functions with an aqueous alkali, in the presence of silanol groups, aluminum concentration being maintained at 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 2.3 and 3; and then in stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the aluminosilicate polymer.

Abstract: The present invention relates to an ink jet recording element having very good dye keeping properties in time. Said recording element comprises a support and at least one ink-receiving layer, said ink-receiving layer comprising at least one hydrosoluble binder and at least one aluminosilicate polymer obtainable by a preparation method consisting in treating an aluminum halide with a mixture of at least one silicon alkoxide only having hydrolyzable substituents and at least one silicon alkoxide having a non-hydrolyzable 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 2.3 and 3; and then stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the hybrid aluminosilicate polymer.

Abstract: The present invention relates to a method for preparing a hybrid aluminosilicate polymer and the polymer resulting from this method. Said method consists in treating an aluminum halide with a mixture of at least one silicon alkoxide only having hydrolyzable substituents and at least one silicon alkoxide having a non-hydrolyzable substituent, with an aqueous alkali, in the presence of silanol groups, aluminum concentration being maintained at 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 2.3 and 3; and then in stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the hybrid aluminosilicate polymer.

Abstract: The present invention relates to a method for processing a color reversal photographic film that enables the amount of silver and tin (II) ions present in the washing water to be reduced, in order to obtain effluents that can be discharged to the drains and satisfy the regulations in force. The method according to the invention comprises the mixing with stirring of the washing water with a composite material comprising a polymer matrix in the form of an imogolite gel in fiber form comprising at least, on the fiber surface, an organic radical having an —SH function or an —S(—CH2)n—S— radical, with n between 0 and 4; the settling of said mixture, and the recovery of a supernatant having greatly reduced quantities of silver and tin (II) ions, enabling direct discharge to the drains.

Abstract: The present invention relates to ink for inkjet printing providing a printed image having improved stability, demonstrated by improved color fastness in time. Said ink comprises at least particles of a synthetic, substantially amorphous aluminosilicate polymer, the synthetic, substantially amorphous aluminosilicate polymer having an average diameter of 1 to 10 nm, wherein the aluminosilicate polymer exhibits an X-ray diffraction pattern that comprises weak peaks at about 2.2 and 3.3 ?.

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 present invention relates to an apparatus for putting into contact a defined quantity of treatment material with an aqueous solution to be treated. The apparatus comprises at least one medium permeable to the aqueous solution to be treated in which the treatment material is placed. The medium is made of polyester foam and has the form of a closed envelope. The treatment material present in the at least one medium is a material for trapping a compound to be eliminated from the solution.

Abstract: The present invention relates to an apparatus for putting into contact a defined quantity of treatment material with an aqueous solution to be treated. The apparatus comprises at least one medium permeable to the aqueous solution to be treated in which the treatment material is placed. The medium is made of polyester foam and has the form of a closed envelope. The treatment material present in the at least one medium is a material for trapping a compound to be eliminated from the solution.

Abstract: The processing installation comprises a processing machine 12 provided with a tank 14 and a recycling device 22 linked to the tank 14 by a feeding pipe 26 enabling a first pump 24 firmly attached to the recycling device 22 to take the liquid from the tank with a set flow rate, to treat the liquid taken and to send the treated liquid back to the tank through a return pipe 28. The feeding pipe has at least one zone that is situated at a lower level than the tank level and that is provided with two conduits 30 and 32 arranged parallel, and a second pump 34 arranged on one of the two conduits 30 as to automatically un-primed the first pump 24.