Dow Global Technolgoies LLC

Kwanho Chang

Rajat Duggal

Nathan Wilmot

Angela I Padilla-Acevedo

Rajesh H Turakhia

Harshad M Shah

Kamesh R Vyakaranam

Venkat S Minnikanti

Jia Xie

Adam C Colson

Eva-Maria Michalski

Marcus Pfarherr

Shouren Ge

Larissa Falsarella

Kamesh Vyakaranam

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.

Epoxy composition

The present invention relates to epoxy coating formulations that comprise an epoxy functional component comprising at least one epoxy functional ingredient comprising an average of at least 1.5 epoxy moieties per molecule; and an amine functional component comprising at least one polycyclic polyamine that comprises (i) a first cyclic structure comprising a first cyclic backbone, a first tertiary amine moiety having a first tertiary nitrogen atom that is a constituent of the first cyclic backbone, at least one additional amine moiety having a nitrogen atom that is a constituent of the first cyclic backbone, and optionally one or more additional amine moieties present in the cyclic backbone and/or in one or more groups pendant from the first cyclic backbone; (ii) a second cyclic structure comprising a second cyclic backbone, a second tertiary amine moiety having a second tertiary nitrogen atom that is a constituent of the second cyclic backbone, at least one additional amine moiety having a nitrogen atom that is a constituent of the second cyclic backbone, and optionally one or more additional amine moieties present in the cyclic backbone and/or in one or more groups pendant from the second cyclic backbone; and (iii) at least one linking group interconnecting the first tertiary nitrogen atom to the second tertiary nitrogen atom; and wherein the polycyclic polyamine has on average greater than one active amine moiety per molecule.

Epoxy coating systems using polycyclic polyamines as epoxy hardeners

An amine endcapped adduct composition including an amine endcapped adduct formed from a monofunctional epoxide and a polyether amine. The monofunctional epoxide and the polyether amine are combined in a molar ratio of 1.0:2.0 to 1.0:8.0 moles of epoxide functionalities to moles of polyether amine functionalities.

Adduct compositions

An epoxy terminated prepolymer formed as a reaction product of a cycloaliphatic epoxide resin and an amine terminated polymeric polyol, and a catalyst that promotes the reaction of the cycloaliphatic epoxide resin and the aminated polyol. The epoxy terminated prepolymer and an anhydride hardener react to form an epoxy elastomer composition having a microphase separated morphology of hard particles, formed with the anhydride hardener reacted with the epoxy terminated prepolymer, dispersed in a soft continuous phase formed from polymeric polyol in the epoxy terminated prepolymer.

Epoxy elastomer compositions

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Lake Jackson, TX, United States of America

Kwanho Chang