PROCESS FOR THE PRODUCTION OF (METH)ACRYLATE ESTERS AND POLYESTER (METH)ACRYLATES

The present invention relates to a process for preparing acrylate esters, methacrylate esters, polyester acrylates and/or polyester methacrylates by reacting acrylic and/or methacrylic acid with a monohydroxy containing compound and/or a polyhydroxy containing compound in a reaction vessel, in the p...

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Bibliographische Detailangaben
1. Verfasser:	TWEEDY, HARRELL EMMETT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL METHODS OF ORGANIC CHEMISTRY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a process for preparing acrylate esters, methacrylate esters, polyester acrylates and/or polyester methacrylates by reacting acrylic and/or methacrylic acid with a monohydroxy containing compound and/or a polyhydroxy containing compound in a reaction vessel, in the presence of a catalyst, a polymerization inhibitor and dense phase carbon dioxide. The dense phase carbon dioxide is in either a sub-critical, near-critical, critical or supercritical physical state. Adva~ g . of using dense phase carbon dioxide as the solvent include the preparation of (meth)acrylate esters and polyester (meth)acrylates in an environmentally friendly manner by reducing or eliminating the need for hydrocarbon solvents, reducing or eliminating the problems associated with handling hydrocarbon solvents, simplifying recovery of products, and recovery and recycle of reactants as compared to the conventional esterification synthesis. In addition, the products produce by the process of this invention can have improved color and purity.