摘要:
The present invention relates to a solid tempera and to the method for manufacturing the same, which includes a dispersion of resin having a concentration value of 10 % to 70 %, sodium stearate having a concentration of 10 % to 20 %, glycerine having a concentration value of 4 % to 20 %, water having a concentration of 7 % to 50 %, a pigment having a concentration value of 5 % to 15 %, an anti-foaming agent having a concentration of 1 % to 3 %, and a biocide having a concentration of 0.10 % to 0.4 %, the above concentration values relating to the final product. The tempera of the invention is used for painting or drawing on a substrate such as paper, Bristol board, wood or cardboard, being applied directly to said substrates without having to add water.
摘要:
A charge mosaic membrane having excellent selective permeability comprises a cationic polymer component, an anionic polymer component and a matrix component. Both of the cationic polymer component and the anionic polymer component are crosslinked particulate polymers. The matrix component is at least one polymer selected from a polysulfone resin, a polyarylate resin, a polyamide resin, a polyimide resin, a polyamideimide resin, a polyurethane resin, a fluorinated resin or a silicone resin. The charge mosaic membrane can be easily produced by conducting formation of the membrane by using a composition in which the cationic polymer component and the anionic polymer component are both dispersed in a solution of the matrix component in an organic solvent.
摘要:
The invention concerns solid foamed active substance preparations based on thermoplastically processed polymers obtained by extruding an active-substance-containing melt of one or a plurality of polymers which is impregnated and expanded with a volatile, physiologically harmless expanding agent.
摘要:
The lubricious hydrophilic coatings of the invention are significantly more lubricious when wet than when dry, are adherent to a variety of substrates, and are resistant to removal by wet abrasion. In one embodiment, the coatings include a hydrophilic polyolefin such as polyvinyl-pyrrolidone and a water-insoluble stabilizing polymer such as a cellulose ester. The coatings may also include an adherent polymer and a plasticizing agent. The coating may be applied by preparing a solution of the stabilizing polymer and a solution of the hydrophilic polyolefin, and coating the substrate first in one then the other. Alternatively, both the stabilizing and hydrophilic polymers may be dissolved in a single solvent system and applied to the substrate in a single step. In another embodiment, only a solution of a hydrophilic polyolefin is applied directly to the substrate. In this embodiment, the solution of the hydrophilic polyolefin includes a cosolvent which acts as a solvent for both the hydrophilic polyolefin and the substrate. The coatings of the invention may be applied to biomedical devices and implants such as catheters, condoms, and nasogastric and endotracheal tubes.
摘要:
A method for increasing the water-solubility of highly insoluble organic compounds by forming a complex product from the reaction between the organic compound and an aqueous solution of solid polyvinylpyrrolidone. The solubility of the organic compound can be increased at least 25-fold and the complex formed is highly stable at ambient conditions.
摘要:
Procédé d'augmentation de la solubilité dans l'eau de composés organiques très insolubles, consistant à former un produit complexe obtenu de la réaction entre le composé organique et une solution aqueuse de polyvinylpyrrolidone solide. La solubilité du composé organique peut être multipliée au moins par 25 et le complexe formé est très stable dans des conditions ambiantes.
摘要:
The present invention relates to a solid tempera and to the method for manufacturing the same, which includes a dispersion of resin having a concentration value of 10 % to 70 %, sodium stearate having a concentration of 10 % to 20 %, glycerine having a concentration value of 4 % to 20 %, water having a concentration of 7 % to 50 %, a pigment having a concentration value of 5 % to 15 %, an anti-foaming agent having a concentration of 1 % to 3 %, and a biocide having a concentration of 0.10 % to 0.4 %, the above concentration values relating to the final product. The tempera of the invention is used for painting or drawing on a substrate such as paper, Bristol board, wood or cardboard, being applied directly to said substrates without having to add water.
摘要:
The invention is related to a method for producing silicone hydrogel contact lenses with having a stable coating thereon. A method of the invention comprises a water-based coating process (step) for forming a relatively-stable base coating of a homo- or copolymer of acrylic acid or C1-C3 alkylacrylic acid onto a silicone hydrogel contact lens made from a lens formulation comprising from about 35% to about 60% by weight of N-vinylpyrrolidone.
摘要:
The present invention relates to a solid tempera and to the method for manufacturing the same, which includes a dispersion of resin having a concentration value of 10 % to 70 %, sodium stearate having a concentration of 10 % to 20 %, glycerine having a concentration value of 4 % to 20 %, water having a concentration of 7 % to 50 %, a pigment having a concentration value of 5 % to 15 %, an anti-foaming agent having a concentration of 1 % to 3 %, and a biocide having a concentration of 0.10 % to 0.4 %, the above concentration values relating to the final product. The tempera of the invention is used for painting or drawing on a substrate such as paper, Bristol board, wood or cardboard, being applied directly to said substrates without having to add water.