Class / Patent application number | Description | Number of patent applications / Date published |
560201000 | Unsaturation in alcohol moiety | 8 |
20090023946 | SYNTHETIC METHOD OF GLYCOL DIESTERS FROM REACTION OF GLYCOL MONOESTERS AND LINEAR ALIPHATIC CARBOXYLIC ACIDS - A method of synthesizing glycol diester by reacting a linear aliphatic carboxylic acid and a glycol monoester in the presence of a Lewis acid type catalyst is provided. In the method, after introducing the glycol monoester, the linear aliphatic carboxylic acid and the Lewis acid type catalyst into a reactor, the reaction occurs to produce reaction products and water in the reactor; an excess of the linear aliphatic carboxylic acid forms an azeotrope with water during the reaction to be sent to a condenser through a distillation column; the linear aliphatic carboxylic acid and water passed through the condenser are divided into an organic layer and an aqueous layer in an oil water separator; and the organic layer is returned to the distillation column through a material cycling line and water in the aqueous layer is removed through a water removal line. By utilizing reactive distillation technique, water produced during the reaction is rapidly removed, and thus the reaction time can be significantly reduced and the yield of the glycol diester can be maximized. | 01-22-2009 |
20100125148 | Integrated process for the production of vinyl acetate from acetic acid via ethylene - This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either in a single reactor zone or in a dual rector zone wherein the intermediate hydrogenated products are either dehydrated and/or cracked to form ethylene. In a subsequent second stage so formed ethylene is reacted with molecular oxygen and acetic acid over a suitable catalyst to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over a hydrogenation catalyst and subsequent reaction over a dehydration catalyst selectively produces ethylene, which is further mixed with acetic acid and molecular oxygen and reacted over a supported palladium/gold/potassium catalyst | 05-20-2010 |
20100152481 | METHOD FOR PRODUCING VINYL ESTERS OF CARBOXYLIC ACIDS - The present invention relates to a process for preparing vinyl carboxylates, wherein a carboxylic acid is reacted with an alkyne compound in the presence of a catalyst which is selected from salts of perrhenic acid at a temperature of =250° C. | 06-17-2010 |
20120316360 | PROCESS FOR PRODUCING ESTER COMPOUND HAVING a, -UNSATURATED BOND - A process for producing an α,β-unsaturated bond-containing ester compound, comprising:
| 12-13-2012 |
20130066103 | High Vinyl Terminated Propylene Based Oligomers - This invention relates to a co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(−0.94(mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)−83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making homo-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour. | 03-14-2013 |
20140187811 | PROCESS FOR THE PREPARATION OF BETA-SANTALOL - The present invention concerns a process for the preparation of a compound of formula (I) in the form of any one of its stereoisomers or mixtures thereof, wherein R represents a C | 07-03-2014 |
20150368179 | PROCESS FOR THE PREPARATION OF BETA-SANTALOL - The present invention concerns a process for the preparation of a compound of formula | 12-24-2015 |
20160185707 | 3-ACYLOXYMETHYL-3-BUTENYL CARBOXYLATE COMPOUND AND METHOD FOR PRODUCING 4-ALKYL-3-METHYLENEBUTYL CARBOXYLATE - Provided is a simple, selective and efficient method for producing 4-alkyl-3-methylenebutyl carboxylates such as 7-methyl-3-methylene-7-octenyl propionate. More specifically provided is a method for producing a 4-alkyl-3-methylenebutyl carboxylate compound, the method comprising a diacyloxylation step of subjecting a 4-halo-2-halomethyl-1-butene compound (6) to diacyloxylation to obtain a 3-acyloxymethyl-3-butenyl carboxylate compound (3), and a coupling step of subjecting the 3-acyloxymethyl-3-butenyl carboxylate compound (3) to a coupling reaction with an organometallic reagent (4) to obtain the 4-alkyl-3-methylenebutyl carboxylate compound (5). | 06-30-2016 |