4346

Iowa State University researchers have developed tackifiers from biorenewable sources that exhibit a maximum tack at approximately 80˚C.

Tackifiers are important components of adhesive formulas, providing the stickiness or tack to the adhesive.  ISURF #04118 describes the initial synthesis of tackifiers from isosorbide and cyclic anhydrides to produce compounds with maximum tack between -20˚C to 40˚C (depending on the choice of anhydride).  ISURF #04346 builds upon this work by creating short oligomers of these tackifiers, resulting in maximum tack performance at 80˚C.

This technology is related to ISURF #4032: Diisocyanates from Bio-Renewable Sources and ISURF 4118: Biorenewable Isosorbide-Based Tackifiers, Adhesives, and Cross-Linked Resins

• Cost competitive with hydrocarbon-based resins; cost-advantaged versus other natural resins

• Bio-based with abundant supply of starting materials

Tackifiers for hot melt adhesives

References: 1. M.D. Zenner et al., “Unexpected Tackifiers from Isosorbide”, ChemSusChem, 8, pp. 448-451, 2015.

2. U.S. Patent Application 2015/0274861