or a hydrocarbyl group having from 1 to about 4 preferably from 1 to about 2 carbon atoms each x is independently hydrogen a hydrocarbyl or hydrocarbyloxy group having from 1 to about 8 preferably from 1 to about 4 carbon atoms or a halogen preferably chlorine or bromine m has an average value from about zero to about 0 5 and n has a value of zero or 1 particularly suitable relatively low equivalent weight aromatic based epoxy resins include for example the diglycidyl ethers of bisphenols such as for example the dglycidyl ether of biphenol the diglycidyl ether of bisphenol a the diglycidyl ether of bisphenol f combinations thereof and the like the term hydrocarbyl as employed herein means any aliphatic cycloaliphatic aromatic aryl substituted aliphatic or cycloaliphatic group or aliphatic or cycloaliphatic substituted aromatic group suitable phenolic materials containing an average of more than one aromatic hydroxyl group which can be employed herein include for example but not limited to those represented by the following formula iii str3 wherein a x and n are as defined above suitable aliphatic or aromatic monocarboxylic acids those reactant materials having only one cooh group which can be employed herein include for example those having from about 2 to about 24 suitably from about 8 to about 20.