Patent application number | Description | Published |
20120035376 | METHODS FOR THE MANUFACTURE OF ACETALS AND KETALS, AND THE ACETALS AND KETALS PRODUCED THEREBY - A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants. | 02-09-2012 |
20120118201 | POLYKETAL ADDUCTS, METHODS OF MANUFACTURE AND USES THEREOF - Disclosed herein is a polyketal adduct obtained by forming an ester between a hydrocarbon polyol and a ketocarboxylic acid to produce an intermediate polyketocarboxylic ester. The intermediate polyketocarboxylic ester can be purified via crystallization to achieve purities of greater than 99.0% and then ketalized to produce the polyketal adduct, which can be used in polymer compositions. The polyketal adduct I is obtained at high purity and at high yield. | 05-17-2012 |
20120118832 | IONIC POLYMERS, METHOD OF MANUFACTURE, AND USES THEREOF - An ionic polymer of formula VI | 05-17-2012 |
20120121911 | POLYHYDROXY KETAL ESTER ADDUCTS, METHODS OF MANUFACTURE AND USES THEREOF - Disclosed herein is a polyhydroxy ketal adduct obtained by the esterification of a hydrocarbon polyol by at least 1.5 equivalents of a ketocarboxy to produce an intermediate ketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the polyhydroxyketal adduct, which can be used to provide a polymeric composition. | 05-17-2012 |
20120122745 | KETAL COMPOUNDS AND USES THEREOF - Various esterified alkyl ketal ester or hydroxyalkyl ketal ester products are useful as components of organic polymer compositions. The ketal esters are produced in certain transesterifications between alkyl ketal esters and/or hydroxyalkyl ketal esters and polyols, aminoalcohols, polyamines and/or polycarboxylic acids. The products are excellent plasticizers for a variety of organic polymers, notable poly(vinyl chloride) plastisols. The products are also very good lubricants for many lubrication applications. | 05-17-2012 |
20120123147 | KETOCARBOXYLIC ACIDS, METHODS OF MANUFACTURE AND USES THEREOF - Ketocarboxylic acids such as levulinic acid can be efficiently purified in high yield by esterification with a hydrocarbon polyol to the corresponding polyketocarboxylic ester, which can be readily purified, for example recrystallized. After purification, the ketocarboxylic ester can be hydrolyzed to provide pure ketocarboxylic acid, or a salt thereof, after removal of the esterifying hydrocarbon polyol, or used for other synthetic transformations. Advantageously, the polyketocarboxylic esters, ketocarboxylic acids, and salts thereof produced by this method are obtained in high purity. | 05-17-2012 |
20130085201 | KETAL LACTONES AND STEREOSPECIFIC ADDUCTS OF OXOCARBOXYLIC KETALS WITH TRIMETHYLOL COMPOUNDS, POLYMERS CONTAINING THE SAME, METHODS OF MANUFACTURE, AND USES THEREOF - Ketal lactones of and methods for making such ketal lactones are disclosed. Also described are methods for making isolated cis- and trans-stereoisomers of hydroxyester ketals of oxocarboxylic acids and polymers having ketal units of such stereoisomers within the polymer backbone. | 04-04-2013 |
20130087073 | STABILIZED LEVULINIC ESTER KETALS - The invention describes methods of preparation and compositions of plasticizers. The plasticizers include at least 2 alkyl ketal ester moieties and have a molecular weight of greater than 300. In one aspect, the alkyl ketal ester moieties are levulinic ester ketals. Certain compositions contain at least one of an antioxidant, a UV stabilizer, a thermal stabilizer or mixtures thereof, present in the composition from about 0.01 to about 5.0 percent by weight of the total composition. | 04-11-2013 |
20130261254 | REACTIVE DILUENTS, METHODS OF REACTING, AND THERMOSET POLYMERS DERIVED THEREFROM - A thermosetting composition comprises in combination an ethylenically unsaturated polymer, and a lactone reactive diluent of the formula | 10-03-2013 |
20130296601 | KETOCARBOXYLIC ACIDS, KETOCARBOXYLIC ESTERS, METHODS OF MANUFACTURE AND USES THEREOF - Ketocarboxylic acids such as levulinic acid can be efficiently purified in high yield by esterification with a hydrocarbon polyol to the corresponding polyketocarboxylic ester, which can be readily purified, for example recrystallized. After purification, the ketocarboxylic ester can be hydrolyzed to provide pure ketocarboxylic acid, or a salt thereof, after removal of the esterifying hydrocarbon polyol, or used for other synthetic transformations. Advantageously, the polyketocarboxylic esters, ketocarboxylic acids, and salts thereof produced by this method are obtained in high purity. | 11-07-2013 |
20130310288 | KETAL COMPOUNDS AND USES THEREOF - Various esterified alkyl ketal ester or hydroxyalkyl ketal ester products are useful as components of organic polymer compositions. The ketal esters are produced in certain transesterifications between alkyl ketal esters and/or hydroxyalkyl ketal esters and polyols, aminoalcohols, polyamines, and/or polycarboxylic acids. The products are excellent plasticizers for a variety of organic polymers, notable poly(vinyl chloride) plastisols. The products are also very good lubricants for many lubrication applications. | 11-21-2013 |
20140128634 | PROCESS TO PREPARE LEVULINIC ACID - The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials. | 05-08-2014 |
20140316161 | PROCESS TO PREPARE LEVULINIC ACID - The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials. | 10-23-2014 |
20140343222 | POLY(LACTONE)S, METHOD OF MANUFACTURE, AND USES THEREOF - A poly(lactone) of formula (I) wherein b=0 or 1; the molar ratio of w:r:s:t=(0-30):(99.9-2):(0-98):(0-30), and w+s+t is at least 1; R | 11-20-2014 |
20150080585 | METHODS FOR THE MANUFACTURE OF ACETALS AND KETALS, AND THE ACETALS AND KETALS PRODUCED THEREBY - A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants. | 03-19-2015 |