Ionic Liquid Epoxy Resin Monomers
AssigneeAZ Technology Inc.
InventorMark S. Paley
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Abstract
Ionic liquid epoxide monomers capable of reacting with cross-linking agents to form polymers with high tensile and adhesive strengths. Ionic liquid epoxide monomers comprising at least one bis(glycidyl) N-substituted nitrogen heterocyclic cation are made from nitrogen heterocycles corresponding to the bis(glycidyl) N-substituted nitrogen heterocyclic cations by a method involving a non-nucleophilic anion, an alkali metal cation, epichlorohydrin, and a strong base.
Claims10
An ionic liquid epoxide monomer having the general structure:
- wherein:
- X is hydrogen, an alkyl group, a substituted alkyl group, a halogen, an aromatic ring, or a substituted aromatic group;
- Y is an alkyl group, a substituted alkyl group, an aromatic ring, or a substituted aromatic group;
- and A− is an anion.
A method for making an ionic liquid epoxide monomer comprising at least one bis(glycidyl) N-substituted nitrogen heterocyclic cation, said method comprising:
- i) dissolving a non-nucleophilic anion and an alkali metal cation in an excess epichlorohydrin to form a solution,
- ii) dissolving a strong base in the solution,
- iii) dissolving a nitrogen heterocycle corresponding to the bis(glycidyl) N-substituted nitrogen heterocyclic cation in the solution containing the strong base,
- iv) stirring the solution at a temperature of 20-25° C. for at least 2 hours, to form a precipitate,
- v) removing the precipitate from the solution,
- vi) neutralizing residual strong base,
- vii) removing excess epichlorohydrin to leave a viscous ionic liquid epoxide monomer resin
- viii) removing chloride ion by washing the ionic liquid epoxide monomer resin with water, and
- ix) removing residual water from the ionic liquid epoxide monomer resin.
Dependencies are inferred from the claim text.