Light colored, aromatic-modified piperylene resins.

摘要

A tackifier resin is prepared by polymerizing a monomer mixture of 10 to 70% piperylene concentrate and 30 to 90% of a vinyl aromatic monomer in the presence of a boron trifluoride catalyst. The resin is water white in color, has a Gardner number of less than one, a softening point of 60 to 100 DEG C and a polydispersity of 1 to 5. The tackifier is used in formulations based on EVA, block copolymers or polyolefins for hot melt and pressure sensitive adhesive applications.