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US 9,957,223 B2Granted
Bis(aryloxyalkyl) esters of aromatic polycarboxylic acids and method of preparation
AssigneeEthox Chemicals, LLC
InventorJames T Tanner
Life of this patent
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Abstract
The invention provides a compound of the formula: wherein Ar is selected from the group consisting of aryl, monosubstituted aryl and polysubstituted aryl, heteroaryl, monosubstituted heteroaryl and polysubstituted heteroaryl; Ar′ is selected from the group consisting of aryl, monosubstituted aryl and polysubstituted aryl, heteroaryl, monosubstituted heteroaryl and polysubstituted heteroaryl; R is an alkylene radical having 2-20 carbon atoms; and n=1-20. The compounds of the invention are used with polymer resins to enhance their gas barrier properties.
Claims7
A composition containing 99.4% of a diester of the formula:
- and 0.6% of a monoester having the formula
- wherein Ar is aryl;
- Ar′ is aryl;
- R is an alkylene radical having 2-20 carbon atoms;
- n=1-20.
2 more elements
Dependencies are inferred from the claim text.