Abstract:
The present invention relates to a solvent system characterized by the fact that is comprises one or more dioxolane-derived esters of formula I where R1, R2 and R3 are the same or different, selected from hydrogen, alkyl, alkenyl and phenyl, and n is an integer between 1 and 5.
Abstract:
The use of thermoplastic polymers for the preparation of injection-molded articles and the resulting articles are described. Also described, is the use of a lubricated polyamide, obtained by means of the addition of at least one lubricant during the polyamide polymerization method, for the preparation of injection-molded articles.
Abstract:
A process for the production of dioxolane compounds of formula (I): wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms, or an alkyl chain from 1 to 5 carbon atoms which is endowed with one or more hydroxyl groups, such process comprising a reaction between crude glycerol and an aldehyde or a ketone, with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1.
Abstract translation:制备式(I)的二氧杂环戊烷化合物的方法:其中R 1和R 2独立地表示氢或1至10个碳原子的烷基链; R 3和R 4独立地表示氢,1至5个碳原子的烷基链或具有一个或多个羟基的1至5个碳原子的烷基链,所述方法包括粗甘油和醛之间的反应或 酮,其中醛:甘油或酮:甘油的摩尔比为3:1至20:1。
Abstract:
Polymeric compositions containing additives having properties of emission and/or absorption of radiation in the long infrared region, and articles shaped therefrom are produced, including yarns and textile articles such as fabrics or knits; such additives include organic additives or inorganic fillers which have a capacity for absorption/emission of radiation in the infrared region, in a wavelength range of from 2 μm to 20 μm, and also a polymeric substrate, with the proviso that the inorganic fillers may be selected from among oxides, sulfates, carbonates, phosphates and silicates, and such inorganic fillers having an average particle size of less than 2 μm.
Abstract:
A process for the production of dioxolane compounds of formula (I), wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms or an alkyl chain from 1 to 5 carbon atoms endowed with one or more hydroxyl groups. Such process comprises successively a reaction step between crude glycerol and aldehyde or ketone and a liquid-liquid extraction step with an extracting ketonic solvent corresponding to formula (II) with A and B independently being an alkyl chain with 2 to 10 carbon atoms, or phenyl, A and B not comprising hydroxyl functions.
Abstract:
A cosmetic kit and the use thereof for improving the appearance of the skin is described. Further described, is the prevention and/or controlling of cellulite or the orange peel syndrome and/or for slimming down the figure, through the increase of the elasticity and firmness of the skin by stepping up collagen synthesis, for increasing blood microcirculation and for improving thermoregulation of the skin.
Abstract:
Polymeric compositions containing additives having properties of emission and/or absorption of radiation in the long infrared region, and articles shaped therefrom are produced, including yarns and textile articles such as fabrics or knits; such additives include organic additives or inorganic fillers which have a capacity for absorption/emission of radiation in the infrared region, in a wavelength range of from 2 μm to 20 μm, and also a polymeric substrate, with the proviso that the inorganic fillers may be selected from among oxides, sulfates, carbonates, phosphates and silicates, and such inorganic fillers having an average particle size of less than 2 μm.
Abstract:
An aqueous coating formulation including a polymer resin, an inorganic filler and a dioxolane as a coupling agent is described. Aqueous paint formulas including certain dioxolanes as coupling agents are also described.
Abstract:
The invention relates to a catalytic method for the industrial production of a diol compound, such as 2-methyl-2-4-pentanediol, also called 2,4-hexylene glycol (HGL), from a β-hydroxy carbonyl compound, Formula (I), in particular diacetone alcohol (DAA).
Abstract:
A cosmetic composition is described that includes particles of a polymeric composition that includes a polymer matrix and one or a plurality of mineral filler(s), uniformly dispersed in the polymer matrix, having properties of absorption and/or emission in the far infrared region ranging from 2 μm to 20 μm. The particles of the polymeric composition can be dispersed in a carrier fluid including water and/or one or a plurality of organic fluids. The composition is, for example, intended to prevent or reduce the signs of skin aging.