5 results about "Gamma-Butyrolactone" patented technology

The invention is suitable for the technical field of UV curing glue dissolving agents, and provides a glass surface UV curing glue dissolving agent, which comprises the following components by mass: 65-90 parts of ethanol, 1-3 parts of a surfactant, 0.9-2.2 parts of a corrosion inhibitor, 0.5-1.2 parts of a thickener, 1-3 parts of limonene, 2-5 parts of glycerin, 6-15 parts of vegetable oil, 3-6 parts of alkyl glycoside, and 1.5-3 parts of gamma-butyrolactone. Preferably, the surface active agent is one or more of alkyl-free phenol, polyoxyethylene-polyoxypropylene block copolymer or polyether modified siloxane; preferably, the sustained release agent is one or more of benzotriazole, methyl benzotriazole or sodium silicate. The product obtained by the invention is neutral and does not corrode glass after long-time soaking, and the peptized glass can be directly put into use, so that the loss of repair is reduced; aiming at common glue in the market, the adhesive has very good dissolving capacity, and is higher in universality; and the service life is prolonged, replacement is not needed, only the solution needs to be added when the solution is insufficient, and replacement is reduced.

An oxygenated hydrocarbon production system for producing an oxygenated hydrocarbon selected from tetrahydrofuran, 1,4-butanediol, and gamma butyrolactone using maleic anhydride. The oxygenated hydrocarbon production system first converts maleic anhydride to a monoester, then converts the monoester to a diester, passes the diester through an anion exchange resin to remove acid-containing species such as the monoester, then hydrogenates the diester to the oxygenated hydrocarbon. The anion exchange resin may be regenerated using a regeneration subsystem which contains a regeneration solution containing a strong base. The system is used in a method of producing an oxygenated hydrocarbon from maleic anhydride.

To improve charge and discharge characteristics. [Solution] The secondary battery comprises a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises a positive electrode current collector containing aluminum and a positive electrode active material layer provided on the positive electrode current collector. The positive electrode active material layer contains a lithium-containing compound. The electrolyte comprises an electrolyte, a solvent, and an additive. The electrolyte contains a bis(fluorosulfonyl)imide salt. The solvent contains at least one from the first group consisting of ethylene carbonate, propylene carbonate, fluoroethylene carbonate, dimethyl carbonate, and gamma butyrolactone. The additive contains at least one from lithium fluorophosphate, sulfinyl compounds, and dinitrile compounds. The intrinsic molar ratio of the solvent to lithium ions, calculated from the vibrational spectroscopy spectrum of the electrolyte, is greater than 0 and 1.78 or less.

A composition includes particular amounts of methyl formate and a second solvent selected from acetone, acetonitrile, cyclopentanone, dimethyl carbonate, dimethyl formamide, dimethyl sulfoxide, 1,3-dioxolane, ethylene glycol monomethyl ether, gamma butyrolactone, isopropyl alcohol, methyl acetate, methylal, methyl glyoxal, propionaldehyde, propionic acid, n-propyl alcohol, propylene carbonate, 2-pyrrolidone, tetrahydrofuran, thioacetic acid, thiophene, transdichloroethylene, water, or a combination thereof. The composition can be particularly useful in removing a coating from a surface.

A sol-gel material for overcoating a surface-relief structure includes a titanium(IV) precursor, and a titanium oxide stabilizer including R3OC(O)OR4, R5C(O)OR6, or a combination. R3 and R4 include alkyl or alkene groups optionally containing carboxylate, alcohol, or ester functionalities, such as propylene carbonate (PC). R5 and R6 include alkyl or alkene groups optionally containing carboxylate, alcohol, or ester functionalities, for example, a lactone such as gamma butyrolactone (GBL). In some embodiments, the sol-gel material includes a source of sulfate or phosphate anions, an acid, a base, a peroxide, a surfactant, a cross-linker, a flexibilizer, a toughener additive, a solvent, or a combination thereof. In some embodiments, the sol-gel material is annealed at a temperature between 50-150° C., and then annealed at a temperature between 200-300° C. In some embodiments, the sol-gel material is cured using ultraviolet light before annealing at a temperature between 200-300° C.