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US 2021/0403633 A1Published application
Liquid epoxy resin composition useful for making polymers
AssigneeSwimc LLC
InventorsRichard H. EVANS, Benjamin J. WEBSTER, Robert M. O'Brien, Jeffrey Niederst
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Abstract
A liquid epoxy resin composition is provided. In preferred embodiments, the liquid epoxy resin composition is free of bisphenol A, bisphenol F, and bisphenol S, including epoxides thereof, and is useful in preparing a polyether polymer having utility in coating compositions, including, e.g., coating compositions for use on food or beverage containers.
Claims24
A method of making an aromatic polyether polymer comprising:
- providing a liquid epoxy resin composition that is derived from reactants including an epihalohydrin and an ortho-substituted diphenol;
- and wherein the liquid epoxy resin composition comprises more than 60 and less than 80 weight percent of n=0 diepoxide compounds derived from the ortho-substituted diphenol, based on the total weight of any unreacted ortho-substituted diphenol that may be present and any compounds including at least one structural unit derived from the ortho-substituted diphenol;
- and wherein the liquid epoxy resin composition is a liquid at 20° C. and atmospheric pressure;
- and
- reacting the liquid epoxy resin composition with one or more extender compounds to yield a polyether polymer having a number average molecular weight of at least 2,000;
- wherein the polyether polymer is substantially free of bisphenol A, bisphenol F, and bisphenol S, including epoxides thereof.
3 more elements
Dependencies are inferred from the claim text.