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2 results about "Dimethyl dicarbonate" patented technology
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Dimethyl dicarbonate (DMDC) is an organic compound which is a colorless liquid with a pungent odor at high concentration at room temperature. It is primarily used as a beverage preservative, processing aid, or sterilant (INS No. 242), and acts by inhibiting the enzymes acetate kinase and L-glutamic acid decarboxylase. It has also been proposed that DMDC inhibits the enzymes alcohol dehydrogenase and glyceraldehyde 3-phosphate dehydrogenase by causing the methoxycarbonylation of their histidine components.
CARBONATE-BASED ELECTROLYTE SYSTEM FOR IMPROVING OR SUPPORTING THE EFFICIENCY OF ELECTROCHEMICAL CELLS WITH LITHIUM-CONTAINING ANODES
Method for producing an electrolyte system that improves or increases the efficiency of an electrochemical cell, comprising a positive electrode comprising a positive lithium-based electroactive material and having a maximum potential greater than or equal to about 5 V, and a negative electrode comprising a negative electroactive material comprising lithium, the method comprising: Mixing one or more salts selected from the group consisting of: lithium bis(fluorosulfonyl)imide (LiFSI), sodium bis(fluorosulfonyl)imide (NaFSI), potassium bis(fluorosulfonyl)imide (KFSI) and combinations thereof, and a solvent comprising one or more solvents selected from the group consisting of: dimethyl carbonate (DMC), dimethyl dicarbonate (DMDC) and combinations thereof, wherein a bound fraction with an ionization potential greater than an electron affinity is formed to create an electrolyte system that is substantially free of unbound dimethyl carbonate (DMC), dimethyl dicarbonate (DMDC) and unbound bis(fluorosulfonyl)imide (FSI). - ) is, wherein one or more salts have a concentration in the electrolyte system of greater than or equal to approximately 4 M.
Owner:GM GLOBAL TECHNOLOGY OPERATIONS LLC
polyurethane dispersion
This invention relates to aqueous polyurethane dispersions containing at least one polyurethane, at least one organic dialkyl dicarbonate, and at least one biocidal compound different from the organic dialkyl dicarbonate, characterized in that the at least one organic dialkyl dicarbonate is selected from dimethyl dicarbonate, diethyl dicarbonate, dipropyl dicarbonate, diisopropyl dicarbonate, methyl ethyl dicarbonate, ditert-butyl dicarbonate, and / or mixtures of at least two of these, further relating to the use of the organic dialkyl dicarbonate for reducing microorganisms in aqueous polyurethane dispersions, to a method for producing aqueous polyurethane dispersions containing reduced amounts of microorganisms, and to articles, cosmetics, coatings, adhesive layers, coating formulations, adhesive formulations, and / or cosmetic formulations obtainable therefrom.
Owner:COVESTRO DEUTSCHLAND AG