Adhesives Resins Business

Eastman Chemical Company completed the sale of the Adhesives Resins Business to Synthomer on April 1, 2022. The sale includes the following products:

  • Hydrocarbon resins (including Eastman Impera tire resins)
  • Pure monomer resins 
  • Polyolefin polymers 
  • Rosins and dispersions 
  • Oleochemical and fatty-acid based resins 

Read Eastman press release
Read Synthomer press release

Endex™ hydrocarbon resins

​Endex™ hydrocarbon resins are made from purified aromatic monomers selected to produce a resin with an unusually high glass transition temperature and softening point. Due to these unique properties Endex™ resins are especially suited for use as modifiers for the end-blocks of styrenic block copolymers. Since Endex™ resins have a higher glass transition temperature and softening point than styrene they act to reinforce compounds based on block copolymers, giving them higher cohesive strength and resistance to high temperatures. Endex™ hydrocarbon resins are water-white in color and extremely stable against thermal and oxidative degradation. Since Endex™ resins associate only with the non-elastic styrenic portions of a block copolymer they normally do not impart tack properties.

Physical Properties Comparison:

Chemical Type:

Highly hydrogenated rosin acids and rosin esters


Hot melt and pressure sensitive adhesives; cosmetics and personal care


Inherent oxidation resistance, color stability, tack retention, good aging characteristics