Class / Patent application number | Description | Number of patent applications / Date published |
560183000 | Unsaturation in acid moiety | 11 |
20100217030 | METHOD AND PLANT FOR PURIFYING UNSATURATED COMPOUNDS - The present invention relates to a process for purifying unsaturated compounds, said purification being performed in a plant which comprises at least two evaporators which are connected in such a way that a portion of the unsaturated compound is circulated, the vapours condensed in the first evaporator being isolated and the vapours condensed in the second evaporator being introduced into the first evaporator, which is characterized in that the mass flow with which the condensed vapours are isolated from the mixture to be purified in the first evaporator is less than the mass flow with which the condensed vapours from the second evaporator are introduced into the first evaporator. | 08-26-2010 |
20100217031 | PROCESS FOR THE PREPARATION OF ALKYL 3,3-DIALKOXYPROPIONATES - The present invention relates to a continuous process for preparing alkyl 3,3-dialkoxy-propionates of the formula (RO) | 08-26-2010 |
20100274042 | PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF ALCOHOLS COMPRISING POLYALKOXY GROUPS - A process for preparing (meth)acrylic esters (E) of alcohols (A) comprising polyalkoxy groups, in which alcohols (A) which comprise polyalkoxy groups and are of the formula (I) | 10-28-2010 |
20110087044 | Process for preparing polyol esters - The present invention relates to a process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms in the presence of an adsorbent and subsequent steam treatment in the course of workup of the crude ester. | 04-14-2011 |
20110087045 | Process for preparing polyol esters - The present invention relates to a process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms by partial recycling of the aliphatic monocarboxylic acid removed into the esterification reaction or into subsequent esterification batches. | 04-14-2011 |
20110087046 | Process for lightening the color of polyol esters - The present invention relates to a process for lightening the color of polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, wherein the reaction product is worked up without using adsorbents and comprises a treatment with ozone or ozone-containing gases and an immediately subsequent steam treatment with subsequent drying. | 04-14-2011 |
20120215024 | HYDROXYALKANOIC ACID AND HYDROXYALKANOICE ACID OLIGOMER ESTERS OF RETINOL - Retinyl hydroxyesters and retinyl oligo-hydroxyesters were prepared using a chemoenzymatic process from retinol and short chain esters of hydroxycarboxylic acids or short chain esters of hydroxycarboxylic acids. The presence of the hydroxyl group on the acid can result in a mixture of esters from various oligomers of the hydroxycarboxylic acid. The retinyl ester products are readily enzymatically hydrolyzed in vitro, which indicates that application to the skin should result in release of the anti-aging ingredient retinol (without the inherent instability and irritation) along with the acid, which, if chosen appropriately, should also have desirable biological effects. This combination should be effective as an anti-aging skin care ingredient. | 08-23-2012 |
20130072712 | ALPHA-SUBSTITUTED ACRYLATE ESTERS, COMPOSITION CONTAINING THEREOF, AND METHOD FOR PRODUCING THOSE - A method for producing α-substituted acrylate esters is provided which can be suitably used as an industrial method for producing α-substituted acrylate esters because the method does not have problems of apparatus corrosion or does not require waste detoxification and allows reaction in a short time with high yield. The method for producing an α-substituted acrylate ester includes a step of carrying out a reaction of a compound having a specific structure and an active hydrogen-containing compound under a condition where a tertiary amine and an acid and/or a salt thereof coexist. | 03-21-2013 |
20130289300 | METHOD AND SYSTEM FOR SEPARATING LINALYL ACETATE FROM LAVENDER ESSENTIAL OIL AND PREPARING ITS DERIVATIVES - The present invention provides a method and system for separating linalyl acetate from Lavender essential oil and preparing its derivatives, whereby the supercritical fluid technology is used to feed Lavender essential oil and supercritical solvent into the first separating tank, where linalyl acetate and linalool are separated from Lavender essential oil; then linalyl acetate is conveyed to the second separating tank, where linalyl acetate is separated with wax-containing oily substance to obtain high-concentration linalyl acetate; next linalool and vitamin C solution are conveyed to a reaction tank for esterification synthesis, and the reaction tank is filled with acid resin catalyst to obtain linalool-vitamin C derivative; with this design, it is possible to reduce the nervous tension, and adjust high-concentration linalyl acetate affecting physiological and psychological stress, as well as vitamin C derivative with anti-oxidizing oily fragrance. | 10-31-2013 |
20140364643 | METHODS OF MANUFACTURING DERIVATIVES OF BETA-HYDROXYCARBOXYLIC ACIDS - Preparation of derivatives of β-hydroxycarboxylic acid, including β-hydroxycarboxylic acid esters, α,β-unsaturated carboxylic acids, esters of α,β-unsaturated carboxylic acid, and alkoxy derivatives. | 12-11-2014 |
20150148560 | POLYHYDROXYALKANOATE DERIVATIVES, PREPARATION AND USES THEREOF - Provided herein are methods that utilize polyhydroxyalkanoates (PHAs) as a substrate for further conversion to C4 and C5 compounds. Polyhydroxyalkanoates can undergo esterification to yield alkyl hydroxyalkanoates and alkyl alkenoates, which may serve as useful precursors in the production of alkadienes and alkenedioic acids, including for example butadiene and butenedioic acid. | 05-28-2015 |