Preparation of (meth)acrylic esters

Details Preparation of (meth)acrylic esters Preparation of (meth)acrylic esters

2005-05-24

2005-05-24

Solola, Taofiq (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

06897336

ABSTRACT:
The present invention describes a process for preparing (meth)acrylic esters by acid-catalyzed esterification of (meth)acrylic acid or by transesterification of (meth)acrylic esters with alcohols, by adding the (meth)acrylic acid or the (meth)acrylic ester at a metering rate of less than 250 g per hour and liter of reactor volume and/or using at least 0.2 mmol of polymerization inhibitor per kg of alcohol and per meq/kg of peroxid number of the alcohol determined by the Sully method and/or thermally treating the alcohol in the absence of water before the esterification or transesterification.

REFERENCES:
patent: 5554785 (1996-09-01), Trapasso et al.
patent: 6175037 (2001-01-01), Tweedy
patent: 10127941 (2002-05-01), None
patent: 2003042151 (2003-05-01), None
Patent Abstracts of Japan, JP 2001-011018, Jan. 16, 2001.
L. B. Levy, et al., Process Safety Progress, vol. 12, No. 2, pp. 111-114, “Emergency Response Shortstop Inhibition During the Approach to an Acrylic Acid Runaway Polymerization”, Apr. 1993.
J. J. Kurland, et al., Plant/Operations Progress, vol. 6, No. 4, pp. 203-207 , “Shipboard Polymerization of Acrylic Acid”, Oct. 1987.
L. B. Levy, Plant/Operations progress, vol. 6, No. 4, pp. 188-189, “Inhibitor-Oxygen Interactions in Acrylic Acid Stabilization”, Oct. 1987.
L. B. Levy, Journal of Applied Polymer Science, vol. 60, pp. 2481-2487, “The Inhibition of Butyl Acrylate by P-Methoxyphenol”, 1996.

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