申请人:Dow Global Technologies LLC
公开号:US20140179828A1
公开(公告)日:2014-06-26
Epoxy resins comprising a diglycidyl ether of Formula 1 as defined herein are described. The diglycidyl ether contains a cycloaliphatic ring of 3-5 carbon atoms. The epoxy resins are made by a method comprising the steps of: (a) forming a reaction mixture comprising a diol of Formula 3 as defined herein, an epihalohydrin, a phase transfer catalyst, and optionally an organic solvent; (b) contacting a basic acting substance and water with the reaction mixture of step (a); (c) washing the mixture of step (b) with an aqueous solvent to substantially remove salts; and (d) isolating the epoxy resin. Curable and cured compositions comprising the epoxy resins are also disclosed. The epoxy resins have increased glass transition temperatures and reduced viscosity compared to epoxy resins derived from cyclohexanedimethanol.