8 results about "Dimethyl isosorbide" patented technology

The present invention relates to a composition comprising at least one amine selected from the group consisting of N,N,N',N'-tetramethylethylenediamine, N,N,N',N'- tetramethylpropylenediamine, 1,8-diazabicyclo[5.4.0]undec-7-ene, N,N- dimethylethylenediamine, 4-methylmorpholine, dimethyl-(2-azidoethyl)amine and mixtures thereof; at least one organic solvent selected from the group consisting of acetonitrile, dimethyl isosorbide, acetone, dimethylsulfoxide, and mixtures thereof; and at least one carboxylic, nitrate, or sulfate salt of a transition metal; wherein the transition metal is completely dissolved in the composition. The invention also relates to hypergolic compositions and uses thereof.

The present disclosure discloses a composition for anti-graying hair comprising Aloe barbadensis Leaf Extract, Camellia sinensis leaf extract, Rosmarinus officinalis Leaf Oil, Hamamelis virginiana (Witch Hazel), Neopicrorhiza scrophulariiflora root extract, Tetrasodium ethylenediaminetetraacetic acid (EDTA), Acrylates / C 10-30 Alkyl Acrylate Crosspolymer, Panthenol, Polyalkylene Glycol Mono Butyl Ether, Ethylhexylglycerin, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Propylene Glycol, Biotin, Hyaluronic Acid, Saccharide Isomerate, Alpha Glucosyl Hesperidin, Dimethyl Isosorbide, Mandarin peel paste, N-Acetyl L-Tyrosine, Pentylene Glycol, Gluconolactone, Propanediol, and water is added to the composition until a desired volume is achieved. The method for preparing the composition for anti-gray hair is also provided.

Method for the selective extraction of polyethylene terephthalate (PET) from a complex mixture of thermoplastics and thermosets. The present invention relates to a method for extracting polyethylene terephthalate (PET) from a solid material containing it in a mixture with one or more auxiliary thermoplastic materials and / or one or more thermoset materials, optionally at least one metal. The method comprises at least the steps of: - Contacting said solid material with a solvent selected from dimethyl isosorbide, benzyl acetate, and mixtures thereof in a reactor; - Selectively solubilizing said polyethylene terephthalate by heating the mixture formed from said material and said solvent, under stirring, at a temperature ranging from 185°C to 220°C; - Isolating said solvent containing the solubilized polyethylene terephthalate (PET) from said mixture; - Precipitating said polyethylene terephthalate in said isolated solvent.and- Recover the polyethylene terephthalate precipitate. Figure for the summary: None,

This application relates to the field of personal care products, disclosing a no-rinse herbal skin-care bath liquid and its preparation method. The bath liquid raw materials include a herbal-eutectic precursor matrix, an aqueous solution of sodium cocoyl apple amino acid, deionized water, and a pH adjuster. The matrix is ​​made of betaine, matrine, dipotassium glycyrrhizate, and dimethyl isosorbide. The preparation method includes mixing the components and then adjusting the pH under negative pressure. During this process, the pH value and viscosity of the system are monitored in real time. When the instantaneous viscosity increases by a set proportion, the dropping rate of the acid adjuster is reduced and a high-speed shearing is initiated simultaneously. This invention utilizes the hydrogen bonding between specific matrix components to inhibit the crystallization and precipitation of herbal ingredients after water evaporation, improving the stickiness of residues. Simultaneously, by combining rheological feedback and negative pressure shearing technology, it alleviates the foaming and stratification problems of amino acid surfactant systems during the acid reduction adjustment process.

The invention provides a nucleic acid transdermal agent composition, a functional nucleic acid preparation and application of the nucleic acid transdermal agent composition and the functional nucleic acid preparation, and belongs to the technical field of nucleic acid transdermal absorption. The additive is one or more of 1, 4-dicarboxylate, dimethyl isosorbide DMI, dodecyl maltoside DDM, decapeptide-4, dimethyl sulfone, inositol, ethyoxyl diglycol, azone and polysorbate-40. The additive is one or more of the following components: 1, 4-dicarboxylate, dimethyl isosorbide DMI, dodecyl maltoside DDM, decapeptide-4, dimethyl sulfone, inositol, ethyoxyl diglycol, azone and polysorbate-40 The nucleic acid transdermal agent with a promoting effect on transdermal absorption of small nucleic acid drugs is obtained by utilizing double screening of qPCR and LC-MS / MS, and the transdermal absorption of small nucleic acid components can be remarkably promoted, so that the exerting effect of the effects of the small nucleic acid components is improved.

Provided are stable, concentrated, and palatable solutions suitable for sublingual and / or transurethral administration containing tadalafil, with or without other active ingredients to address comorbidities, in a liquid vehicle or solvent selected from propylene carbonate, 2-pyrrolidone, dimethyl isosorbide, dimethyl acetamide, n-methyl-2-pyrrolidone, ethanol, water, oleic acid, and isopropyl myristate. The solutions have low irritancy for sublingual tissues and a-are compatible with commercial atomizers. The invention is further directed to methods of treating male erectile dysfunction and / or comorbidities by administering an effective amount of the pharmaceutical formulations comprising tadalafil, with or without other active ingredients, to a patient in need of such treatments.

The invention relates to the technical field of chemical synthesis, in particular to a preparation method of DMI (isosorbide dimethyl ether). The preparation method of the DMI comprises the following steps: S1, uniformly mixing isosorbide, alkali and a solvent I; s2, DMS (dimethyl sulfate) is added at a time, and a front-stage reaction is carried out; s3, DMS is added again, a second-stage reaction is carried out, and a product DMI is obtained. According to the method, DMI is synthesized through two-stage reaction by respectively adding DMS, the conversion efficiency of isosorbide is remarkably improved, the content of monoether in the product is reduced, the yield of the DMI can be improved to 90% or above, the purity of the product is larger than or equal to 99%, the solvent recycled in the preparation process can be reused, and cyclic treatment is achieved.

Provided is a topical composition having excellent stability.　In the present invention, a topical composition for skin is prepared, the topical composition comprising (A) at least one component selected from the group consisting of ascorbic acid and salts of ascorbic acid, (B) a low-molecular-weight betaine, (C) water, and (D) dimethyl isosorbide, wherein the ratio of the amount of (A) in terms of part(s) by weight to the amount of (B) in terms of part(s) by weight, i.e., (A) / (B), is 1-1000 and the ratio of the amount of (A) in terms of part(s) by weight to the amount of (D) in terms of part(s) by weight, i.e., (A) / (D), is 0.01-5. This topical composition for skin can be prepared at ambient temperature and has good characteristic properties.