Abstract: The present invention relates to the use of silicates in a greenhouse film for increasing the flower development of a plant, wherein the film comprises at least a matrix and a silicate. Said invention also refers to a film comprising at least a matrix and said silicate to increase the flower development of a plant, and the use of a film comprising at least a matrix and said silicate in a greenhouse to increase the flower development of a plant.

Abstract: The present invention relates to the use of an inorganic phosphor to increase the yield of corn or soy cultivation promoted by the use of at least one fungicide, said inorganic phosphor exhibiting: a maximum in the emission spectrum in the range of wavelengths between 400 nm and 500 nm; an absorption Abs in the visible range which is equal to or less than 15.0%, preferably equal to or less than 10.0%, even more particularly equal to or less than 3.0%; and an internal quantum efficiency (IQE) measured in the range of wavelengths between 300 nm and 410 nm which is equal to or greater than 50.0%, more particularly greater than 75.0%, even more particularly greater than 90.0%.

Abstract: The invention relates to a method for treating a plant wherein an agrochemical composition is applied onto at least one part of said plant, wherein the plant is corn or soy and wherein the agrochemical composition comprises in a liquid medium: particles of at least one inorganic phosphor exhibiting: a maximum in the emission spectrum in the range of wavelengths between 400 nm and 500 nm; an absorption Abs in the visible range which is equal to or less than 15.0%, preferably equal to or less than 10.0%, even more particularly equal to or less than 3.0%; and an internal quantum efficiency (IQE) measured in the range of wavelengths between 300 nm and 410 nm which is equal to or greater than 50.0%, more particularly greater than 75.0%, even more particularly greater than 90.0%; and optionally at least one biocide.

Abstract: A modified phosphor is described comprising phosphor particles and at least one amphiphilic agent. Compositions comprising the modified phosphor and at least one polymer are also described.

Abstract: The silicate of magnesium and of barium, strontium or calcium of the invention is characterized in that it is in the form of a suspension of solid crystallized particles in a liquid phase, said particles having a mean size between 0.1 ?m and 1 ?m. It is prepared by spray-drying a liquid mixture comprising compounds of magnesium, of silicium and of at least one first element chosen from barium, strontium and calcium, by submitting the dried mixture to a first calcination in air and to a second calcination in a reducing atmosphere and by wet milling the calcined mixture.

Abstract: The present invention relates to a composition based on yttrium oxide, on a cerium-based compound and on an organic compound and its use in the field of welding as stop-off product. The composition comprises, in an aqueous medium: yttrium oxide particles; particles of a cerium-based compound: which is cerium oxide; or which is prepared by the process consisting in causing a colloidal dispersion D, which is obtained by the neutralization of an aqueous cerium nitrate solution by a basic aqueous solution, to undergo heating; an organic compound chosen from the group formed by polyvinylpyrrolidone, polyvinyl alcohol, carboxymethyl cellulose and hydroxyethyl cellulose.

Abstract: A modified phosphor is described comprising phosphor particles and at least one amphiphilic agent. Compositions comprising the modified phosphor and at least one polymer are also described.

Abstract: The silicate of magnesium and of barium, strontium or calcium of the invention is characterized in that it is in the form of a suspension of solid crystallized particles in a liquid phase, said particles having a mean size between 0.1 ?m and 1 ?m. It is prepared by spray-drying a liquid mixture comprising compounds of magnesium, of silicium and of at least one first element chosen from barium, strontium and calcium, by submitting the dried mixture to a first calcination in air and to a second calcination in a reducing atmosphere and by wet milling the calcined mixture.

Abstract: A composition comprising an inorganic core and an aluminate shell is described. The aluminate can have the formula (1): (CeaTbb)Mg1+xAl11+y019+x+y ??(1), where a, b, x and y comply with the relations a+b=1?0.2˜x˜+0.2 and ?0.2˜y˜+0.2, wherein the shell uniformly covers the inorganic core over a thickness of no less than 300 nm. A phosphor is also described that can be obtained by calcinating the composition at a temperature of at least 1200° C.

Abstract: The composite of the invention comprises (a) a polymer selected from ethylene/vinyl acetate, polyethylene terephthalate, ethylene tetrafluoroethylene, ethylene trifluorochloroethylene, perfluorinated ethylene-propylene, polyvinyl butyral, polyurethane and silicones; (b) an inorganic phosphor based on at least one element selected from rare earth elements, zinc and manganese, which has an external quantum efficiency of greater than or equal to 40% for at least one excitation wavelength of between 350 nm and 440 nm; an absorption of less than or equal to 10% for a wavelength of greater than 440 nm; a mean particle size of less than 1 ?m; and this phosphor has an emission maximum in a range of wavelengths between 440 nm and 900 nm.

Abstract: A composition comprising an inorganic core and an aluminate shell is described. The aluminate can have the formula (1): (CeaTbb)Mg1+xAl11+yO19+x+y??(1), where a, b, x and y comply with the relations a+b=1?0.2?x?+0.2 and ?0.2?y?+0.2, wherein the shell uniformly covers the inorganic core over a thickness of no less than 300 nm. A phosphor is also described that can be obtained by calcinating the composition at a temperature of at least 1200° C.

Abstract: A composition comprising an inorganic core and an aluminate shell is described. The aluminate can have the formula (1): (CeaTbb)Mg1+xAl11+yO19+x+y ??(1), where a, b, x and y comply with the relations a+b=1?0.2?x?+0.2 and ?0.2?y?+0.2, wherein the shell uniformly covers the inorganic core over a thickness of no less than 300 nm. A phosphor is also described that can be obtained by calcinating the composition at a temperature of at least 1200° C.

Abstract: A rare earth (Ln) phosphate is described, wherein Ln is either: (1) at least one rare earth selected from cerium and terbium, or (2) lanthanum in combination with at least one of the two above-mentioned rare earths, and wherein the phosphate has a crystalline structure of the monazite type with a potassium content of at most 6000 ppm. The phosphate can be obtained by the precipitation of a rare earth chloride at a constant pH lower than 2, by calcination at a temperature of at least 700° C. and by redispersion in hot water. A phosphor obtained by calcination of said phosphate at at least 1000° C. is also described.