37 results about "Propyl benzoate" patented technology

The present invention provides an industrial method production of silodosin, which is useful for a therapeutic agent for dysuria associated with benign prostatic hyperplasia. The production of silodosine is characterized by mixing 3-{7-cyano-5-[(2R)-2-({2-[2-(2,2,2-trifluoroethoxy)-phenoxy]ethyl}amino]propyl]-2,3-dihydro-1H-indol-1-yl}-propyl benzoate and oxalic acid to yield the oxalate, subsequently hydrolyzing the oxalate salt to yield 1-(3-hydroxypropyl)-5-[(2R)-2-({2-[2-(2,2,2-trifluoroethoxy)phenoxy]ethyl}amino]propyl]-2,3-dihydro-1H-indole-7-carbonitrile and hydrolyzing the same, and manufacturing intermediates used therefore.

A unique monobenzoate useful as a plasticizer or coalescent for polymeric dispersions, including without limitation architectural and other coatings, paints, OEM coatings, special purpose coatings, overprint varnishes, inks, nail polish, floor polishes and the like. The monobenzoate comprises 3-phenyl propyl benzoate, a benzoate ester previously known as a flavoring and fragrance agent, but not previously utilized as a plasticizer or coalescent in polymeric applications. The inventive monobenzoate provides a suitable non-phthalate, lower VOC content alternative plasticizer or coalescent that is compatible with a wide variety of polymers. Depending on the application, the advantages rendered by the use of the inventive monobenzoate include, among other things, excellent solvating properties, viscosity stability, improved rheology, good film formation and comparable or better gloss, hardness, adhesion, water and alkali resistance, scrub and rub resistance, block resistance, color density, dry to touch time, open time, and MFFT, compared with that achieved by traditional plasticizers or coalescents.

The invention discloses a method for qualitatively and quantitatively analyzing a key volatile component in cigarette bead blasting. The method comprises the following steps: (1) performing full-scanning analysis on a bead blasting isopropanol solution by a gas chromatography high-resolution time of flight mass spectrometry (GC-TOF / MS) to obtain a full-scanning atlas; (2) determining an unknown material and screening the key component by an area normalization method semiquantitative result; (3) determining the mass spectrometric qualitative and quantitative parameters of the key component by taking n-propyl benzoate as an internal standard substance and by combining gas chromatogram secondary mass spectrometry (GC-MS / MS); and (4) drawing a regression curve by a gas chromatogram secondary mass spectrometry combined multi-monitoring scanning mode, and analyzing the content of the key component accurately and quantitatively. The method is simple in operation, high in sensitivity, high inaccuracy degree, short in analysis time and suitable for performing qualitative and quantitative analysis on various volatile and semi-volatile organic compounds in bead blasting simultaneously.

The invention discloses a method for determining chemical components in tobacco dry distillated flavor. The method comprises the following steps: (1), with ethanol as a solvent, respectively preparing a menthol standard solution and a propyl benzoate standard solution; (2), mixing uniformly the tobacco dry distillated flavor with the menthol standard solution and the propyl benzoate standard solution so as to obtain a sample solution to be measured; (3), carrying out gas chromatography-mass spectroscopy analysis on the sample solution to be measured so as to obtain a determination result of the chemical components in the tobacco dry distillated flavor. By adopting the method for determining chemical components in the tobacco dry distillated flavor, the chemical components in the tobacco dry distillated flavor can be simply, quickly, and accurately determined to guide improvement on processes for tobacco dry distillated flavor preparation.

The invention belongs to the field of cosmetics, and in particular relates to a preparation method of a snail mask containing snail secretion filtrate and active peptide. The components of the mask of the present invention contain water, glycerin, propylene glycol, snail secretion filtrate, lactobacillus fermentation lysate, hexapeptide-1, tocopherol, hyaluronic acid, dipotassium glycyrrhizinate, allantoin, disodium EDTA, Propyl benzoate as raw material. The snail facial mask provided by the invention is suitable for use on dry skin with large pores.

The invention discloses a synthesis method of propyl p-hydroxybenzoate. The synthesis method comprises immobilized bio-imprinting enzyme. An imprinting system of the bio-imprinting enzyme is prepared from tannase, p-hydroxybenzonic acid and kieselguhr according to a mass ratio of (0.1-1): (1-3): 10. A buffer solution for fixing the immobilized bio-imprinting enzyme is an acetic acid buffer solution which has a pH value of 6.0 and the concentration of 100mM. According to the synthesis method, the propyl p-hydroxybenzoate is catalytically synthesized by using the immobilized bio-imprinting tannase, and a compound solvent system of the n-propyl alcohol-acetic acid buffer solution is used for improving the catalytic efficiency. After the method is adopted, the substrate conversion rate reaches 26.5%. The method is mild in reaction, low in energy consumption and less in pollution, and is an efficient, convenient and fast production way, so that a new way is provided for realizing the green and efficient production of propyl p-hydroxybenzoate.

The invention discloses a preservative composition for oral cavity cleaning and nursing materials, which is prepared from the following raw materials in parts by weight: 3 to 35 parts of preservative A, 1 to 36 parts of preservative B, 0.1 to 15 parts of synergist, 0.02 to 10 parts of stabilizer and 4 to 70 parts of solvent, wherein the preservative A is any one or more of benzoic acid, sodium benzoate, phenoxyethanol, sorbic acid and sodium sorbate; the preservative B is any one or more of chlorphenesin, 4-hydroxybenzoic acid, methyl 4-hydroxybenzoate, ethyl 4-hydroxybenzoate, propyl 4-hydroxybenzoate, propyl 4-hydroxybenzoate, dehydroacetic acid, sodium dehydroacetate and benzyl alcohol. Meanwhile, the invention further discloses a preparation method and application of the preservative composition. The preservative composition for the oral cavity cleaning and nursing material provided by the invention is good in stability, excellent in corrosion resistance and high in safety.

The invention relates to a snail facial mask containing snail active enzyme mucus extract and a preparation method thereof, belonging to the field of cosmetics, in particular to a preparation method of a snail facial mask containing snail secretion filtrate. The present invention contains water, glycerin, propylene glycol, snail secretion filtrate, hydrolyzed vegetable protein, aloe barbadensis (ALOE BARBADENSIS) extract, mother of pearl extract, hyaluronic acid, dipotassium glycyrrhizinate, allantoin, EDTA Sodium, propyl benzoate as raw materials. The snail facial mask provided by the invention is suitable for use on dry skin with large pores.