Epoxy composition
AssigneeDow Global Technologies LLC
InventorsKwanho Chang, Jia Xie, Shouren Ge, Nathan Wilmot, Rajat Duggal
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Abstract
An epoxy composition that includes an epoxy-terminated prepolymer, an alkanolamine hardener having at least one hydroxyl group and an organometallic compound, where amine groups of the alkanolamine hardener react with epoxy groups of the epoxy-terminated prepolymer in a stoichiometric ratio to form a cured epoxy composition. The epoxy-terminated prepolymer is formed from a reaction product of an amine terminated polymeric polyol and a molar excess of epoxy groups in an epoxy monomer, relative to a molar amount of amine groups in the amine terminated polymeric polyol.
Claims11
An epoxy composition, comprising:
- an epoxy-terminated prepolymer formed from a reaction product of an amine terminated polymeric polyol and a molar excess of epoxy groups in an epoxy monomer relative to a molar amount of amine groups in the amine terminated polymeric polyol;
- an alkanolamine hardener having at least one hydroxyl group;
- and
- 1.0 to 10 weight percent (wt. %) of an organometallic compound relative the total weight of the epoxy composition, where the organometallic compound is selected from the group consisting of zinc octoate, bismuth neodecanoate, titanium(IV) 2-ethylhexyloxide, and a combination thereof, and where amine groups of the alkanolamine hardener react with epoxy groups of the epoxy-terminated prepolymer in a stoichiometric ratio to form a cured epoxy composition.
(canceled)
A method of forming a cured epoxy composition, comprising:
- admixing an epoxy-terminated prepolymer formed from a reaction product of an amine terminated polymeric polyol and a molar excess of epoxy groups in an epoxy monomer, relative to a molar amount of amine groups in the amine terminated polymeric polyol;
- an alkanolamine hardener, and 1.0 to 10 wt. % of an organometallic compound relative the total weight of the cured epoxy composition to form an epoxy composition, where the organometallic compound is selected from the group consisting of zinc octoate, bismuth neodecanoate, titanium(IV) 2-ethylhexyloxide, and a combination thereof, and where amine groups of the alkanolamine hardener react with epoxy groups of the epoxy-terminated prepolymer in a stoichiometric ratio in the epoxy composition to form the cured epoxy composition.
(canceled)
Dependencies are inferred from the claim text.