Title:
PURIFIED PLASTICIZERS, PRODUCTION AND USE
Document Type and Number:
WIPO Patent Application WO/2017/204913
Kind Code:
A3
Abstract:
This disclosure relates to methods for producing purified aromatic esters useful as plasticizers, to the purified aromatic esters, and to polymer compositions containing the purified esters. The purified aromatic esters can be produced by esterifying carboxylic acid with methyl or ethyl alcohol, separating the resulting methyl or ethyl esters from the carboxylic acid and any byproduct impurities, and then transesterifying the methyl or ethyl esters with C4 to C14 alcohol to produce the purified aromatic esters. Additionally, precipitation, filtration, and wash steps can be employed to purify the carboxylic acid, the methyl or ethyl alcohol, and/or the aromatic esters.
Inventors:
SHIRAMIZU MIKA (US)
ZUSHMA STEPHEN (US)
WEBER JÖRG (US)
SANGAR NEERAJ (US)
ZUSHMA STEPHEN (US)
WEBER JÖRG (US)
SANGAR NEERAJ (US)
Application Number:
PCT/US2017/026978
Publication Date:
July 26, 2018
Filing Date:
April 11, 2017
Export Citation:
Assignee:
EXXONMOBIL CHEMICAL PATENTS INC (US)
International Classes:
C07C67/02; C07C51/16; C07C63/331; C07C63/333; C07C67/08; C07C67/48; C07C69/76; C08K5/10; C08L27/06
Domestic Patent References:
| WO2014117076A1 | 2014-07-31 |
Foreign References:
| US20110184105A1 | 2011-07-28 | |||
| US20120108874A1 | 2012-05-03 | |||
| US20100159177A1 | 2010-06-24 | |||
| US5138022A | 1992-08-11 |
Attorney, Agent or Firm:
HASENBERG, Lisa M. et al. (US)
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