The invention relates to compositions of ,-branched alkane carboxylic acids glycidyl esters with a define isomeric composition where the sum of the concentration of the blocked and of the highly branched isomers is at least 50%, preferably above 60% and most preferably above 75% on total composition.

The invention relates to compositions of ,-branched alkane carboxylic acids glycidyl esters with a define isomeric composition where the sum of the concentration of the blocked and of the highly branched isomers is at least 50%, preferably above 60% and most preferably above 75% on total composition.

Provided is a two-part composition comprising A) An epoxy terminated polyester having the structure ##STR00001## wherein R.sup.1 is ##STR00002## G- is ##STR00003## j is 0 to 5, R.sup.2 is a divalent organic group, R.sup.22 is a divalent alkyl group, and R.sup.22 is a divalent alkyl group, and B) one or more epoxy curing agent, each molecule of which comprises two or more active hydrogen atoms that are each capable of reacting with an epoxy group.

Provided is a two-part composition comprising A) An epoxy terminated polyester having the structure ##STR00001## wherein R.sup.1 is ##STR00002## G- is ##STR00003## j is 0 to 5, R.sup.2 is a divalent organic group, R.sup.22 is a divalent alkyl group, and R.sup.22 is a divalent alkyl group, and B) one or more epoxy curing agent, each molecule of which comprises two or more active hydrogen atoms that are each capable of reacting with an epoxy group.

Embodiments of this invention are directed to bio-based epoxy compositions. and method of their preparation and use. Other embodiments are directed to cured bio-based epoxies, and manufactured articles having bio-based epoxy coatings, adhesives, or composites.

Embodiments of this invention are directed to bio-based epoxy compositions. and method of their preparation and use. Other embodiments are directed to cured bio-based epoxies, and manufactured articles having bio-based epoxy coatings, adhesives, or composites.