|FREE patent keyword monitoring and additional FREE benefits. REGISTER now for FREE|
Organic Compounds -- Part Of The Class 532-570 Series > Azo Compounds Containing Formaldehyde Reaction Product As The Coupling Component > Carboxylic Acid Esters > Aromatic Acid Moiety > Polycarboxylic Acid
Polycarboxylic AcidPolycarboxylic Acid patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.
12/21/06 - 20060287549 - Catalytic asymmetric desymmetrization of prochiral and meso compounds
The present invention relates to methods for the synthesis of chiral non-racemic products, e.g., enantiomerically-enriched hemiesters, from prochiral and meso starting materials, e.g., prochiral and meso cyclic anhydrides. The present invention also relates to catalysts for the aforementioned methods, and methods for synthesizing these catalysts. ...
11/09/06 - 20060252956 - Process for reactive esterification distillation
A process for producing organic acid di- or tri-esters, particularly citric acid tri-esters, with the available acid groups esterified using countercurrent reactive distillation using acid catalysts in a structured packing is described. In the reactive distillation an organic acid di- or tri-ester is formed by chemical reaction and purified to ...
09/14/06 - 20060205970 - Production of carboxylic acids or carboxylic acid esters
In the production of carboxylic acid or carboxylic acid ester, a reaction product containing the carboxylic acid or carboxylic acid ester which has been produced by the reaction of an olefin, carbon monoxide, and water or an alcohol in the presence of HF is heat-treated in the presence of an ...
02/09/06 - 20060030727 - Method and device for the continuous pre-polycondensation of esterification/transesterification products
In a method for the continuous pre-polycondensation of esterification/transesterification products the stream freely passes from top to bottom in a vertical reaction apparatus through a plurality of attached, heatable, sloped open-above bases, through product overflow channels connected with each other. In order to be able to set a determined, efficient ...
06/09/05 - 20050124825 - Novel malonic acid monomethyl derivatives and production process thereof
wherein X and Me have the same meanings as defined above; and (B) hydrolyzing the dimethyl malonate derivative of Formula (III). The compound is useful in the production of an indanonecarboxylic acid ester having a halogen atom on the indanone ring. ...
FreshPatents.com Support - Terms & Conditions