Acetals Esters Produced from Purified Glycerin for Use and Application as Emollients, Lubricants, Plasticizers, Solvents, Coalescents, Humectant, Polymerization Monomers, Additives to Biofuels

ACETAL ESTERS PRODUCED FROM PURIFIED GLYCERIN FOR USAGE AND APPLICATIONS AS EMOLLIENTS, LUBRICANTS, PLASTICIZERS, SOLVENTS, COALESCENTS, HUMECTANTS, POLYMERIZATION MONOMERS, ADDITIVES TO BIOFUELS, more particularly it concerns mono- and diesters of acetals characterized by:

• being produced from glycerine, organic aldehydes, and carboxylic or dicarboxylic acids such as humectants, solvents, additives, lubricants, softeners, plasticizers, surfactants, dispersants;
• products produced from the techniques described may contain natural antioxidants from purified glycerin whose process prevents distillation and preserves the presence of tocopherols and other active ingredients such as sterols and squalene;
• the glycerin used may be technical distilled glycerin, USP glycerin, blond glycerin, and preferably purified glycerin;
• organic aldehydes can be propinaldehyde, isoamialdehyde, nonaldehyde, decanaldehyde, isotridecilaldehyde, furfuraldehyde, benzaldehyde, and preferably butyraldehyde, isobutyraldehyde and ethylhexaldehyde;
• Carboxylic acids are acetic acid, propionic acid, butyric acid, hexoic acid, capric acid, caprylic acid, 2-ethylhexanoic acid, nonanoic acid, decanoic acid, lauric acid, palmitic acid, myristic acid, stearic acid, oleic acid, linoleic, linolenic acid, ricinoleic acid, arachidonic acid, lactic acid, citric acid, benzoic acid, acrylic acid, methacrylic acid and their respective methyl and ethyl esters;
• The dicarboxylic acids may be adipic acid, orthophthalic acid, maleic acid, succinic acid, terephthalic acid, oxalic acid, maleic acid, dimerized fatty acids and their respective methyl and ethyl diesters;
• The alcohols used for the synthesis of hybrid ester may be the following:
• methyl, ethyl, propyl, butyl, isobutyl, amyl, isoamyl, hexanol, octanol, decanol, dodecanol, cetostearyl alcohols, guebert, oleyl, preferably isoamyl alcohol from natural origin;
• The synthesis techniques can be:
• The production of acetal with subsequent esterification or transesterification reaction, or preferably with in situ formation of the acetal, or acetal and ester are being made in a single step;
• molar ratios between glycerol:aldehyde:carboxyl group in the range of 10:20:1 to 3:6:1 preferably 1.5:2.0:1;
• Reaction temperature in the range of 80° C. to 250° C., preferably 140° C. to 180° C.;
• Catalysts are organometallic acids and acids which may be sulfuric acid, phosphoric acid, methanesulfonic acid, para toluene sulfonic acid, benzene sulfonic acid, trifluorrrietano sulfonic acid, hydrochloric acid, nitric acid, tin oxalate, tin oxalate, and all the organic derivatives of tin, preferably methane sulfonic acid, para toluene sulfonic acid, tin oxalate, trifluoromethanesulfonic acid;
• The amount of catalyst is 100 parts per million to 100,000 parts per million, preferably from 500 parts per million to 5,000 parts per million.