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US 10,865,171 B1Granted
Process to make aromatic enol ethers and olefin isomers of aromatic enol ethers
AssigneeEastman Chemical Company
InventorMatthew Allen Boone
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Abstract
Disclosed is a method for making aromatic enol ethers that have utility as film-hardening additives for coating formulations. The aromatic enol ethers have particular utility as film-hardening additives for water-based coating formulations. The aromatic enol ethers provide improvements in hardness and hardness related properties such as block resistance without contributing to the volatile organic content of the composition.
Claims9
A method of making aromatic enol ethers comprising:
- a) contacting a glycol ether with a di-epoxide in the presence of a base to form a first reaction product;
- b) combining said first reaction product with an aromatic hydrocarbon and an acid to form a second reaction product having an aqueous phase and a non-aqueous phase;
- c) separating said second reaction product aqueous phase from said second reaction product non-aqueous second phase;
- d) drying said second reaction product non-aqueous phase to recover a dicarbinol;
- e) dehydrating said dicarbinol with an acid catalyst to form a mixture of an aromatic enol ether and water;
- and
- f) separating said aromatic ether from said water.
4 more elements
Dependencies are inferred from the claim text.