US 2014/0275342 A1 · EPOXY RESIN COMPOSITIONS, METHODS OF MAKING SAME, AND ARTICLES THEREOF

Abstract

Advanced epoxy resins comprising the reaction product of an epoxy resin comprising a diglycidyl ether of Formula 1 as defined herein, and at least on difunctional compound selected from an aromatic diol and a dicarboxylic acid are described. The diglycidyl ether contains a cycloaliphatic ring of 3-5 carbon atoms. Purified diglycidyl ether is used to obtain substantially linear, high molecular weight, advanced epoxy resin. Curable compositions, cured compositions, and articles comprising the advanced epoxy resins are also disclosed. The advanced epoxy resins provide cured coatings having improved flexibility and low total chlorine content.

Claims23

Dependent claims

An advanced epoxy resin comprising the reaction product of:

an epoxy resin comprising a diglycidyl ether of Formula 1
wherein n is 1, 2, or 3;
each R1 is independently hydrogen, C1-12 alkyl, C3-12 cycloalkyl, or C6-24 aryl;
and each R3 is independently hydrogen, C1-12 alkyl, C3-12 cycloalkyl, C6-24 aryl, or a glycidyl ether group, with the proviso that the diglycidyl ether has two glycidyl ether groups;
and
at least one difunctional compound selected from an aromatic diol and a dicarboxylic acid.

3 more elements

Dependencies are inferred from the claim text.

Epoxy resin compositions, methods of making same, and articles thereof

Life of this patent

Epoxy resin compositions, methods of making same, and articles thereof

Life of this patent

Abstract

Claims23