Patent ID: 6160077
Filing Date: 2000-12-12
Classification: C08G,G03F,H01L

Abstract:
A halogen-free epoxy resin manufactured by conversion of an epoxy component, the epoxy component comprising a compound selected from the group consisting of bis(3,4-epoxycyclohexylmethyl)adipate, derivatives of bis(3,4-epoxycyclohexylmethyl)adipate, 3,4-epoxycyclohexylmethyl-(3,4-epoxy)cyclohexanecarboxylate, and derivatives of 3,4-epoxycyclohexylmethyl-(3,4-epoxy)cyclohexanecarboxylate with a phenol component in the presence of a catalyst comprising a tetraalkylammonium hydroxide, the catalyst being halogen free.