ABSTRACT

Resins or in situ resins are considered to be polymeric materials with weight-average molecular weights (Mw) in the approximate range of 800-4000. They are amorphous, thermoplastic materials that can be either liquids (low softening points) or solids

I. Introduction .................................................................................................. 379 II. Naturally Derived Resins.............................................................................. 382

A. Rosin and Terpene-Based Resins .......................................................... 382 III. Hydrocarbon Resins......................................................................................384