Hydroxy ester resins

Abstract

A hydroxy ester resin composition such as a vinyl ester resin including the reaction product of (a) divinylarene dioxide resin; and (b) at least one ring opening reactant such as at least one monocarboxylic acid for example (meth)acrylic acid, in the presence of (c) at least one non-gelling catalyst such as a Lewis acid catalyst; a process for making the hydroxy ester resin composition; a curable hydroxy ester resin composition such as a curable resin composition made from the hydroxy ester resin composition; a process for curing the curable hydroxy ester resin composition; and a cured product made from the curable hydroxy ester resin composition. The cured product made from the above hydroxy ester resin composition is thermally stable and offers improved properties such as a lower viscosity and a high heat resistance compared to known cured products prepared from known epoxy resins.

Dependencies are inferred from the claim text.