| abstract |
A hydrocarbon polymer modifier (HPM) is an interpolymer of (i) a vinyl cyclohexene component (ii) a piperylene component; and (iii) a C 8 -C 12 vinyl aromatic component; and wherein the interpolymer comprises (a) a softening point from 40° C. to 160° C., (b) Mn greater than 400, (c) Mz less than 15,000, and (d) at least 8 mole percent aromatic hydrogen, based on the total moles of hydrogen in the interpolymer. |