Patent ID: 8703683

Claim:
A process for making a poly(alkyl epoxide), comprising: polymerizing one or more alkyl epoxide monomers in the presence of a Lewis acid catalyst according to the following sequence: wherein at least one of R 1 or R 2 and at least one of R 3 or R 4 are an alkyl moiety and wherein R 1 , R 2 , R 3 , and R 4 are hydrogen or alkyl moieties that, taken together, have a total of 1 to 80 carbons; wherein any of R 1 , R 2 , R 3 , and R 4 can be linear or branched if it is an alkyl moiety; wherein “m” is 1; and wherein “n” is an integer from 2 to 120, wherein the poly(alkylepoxide) has a Viscosity Index ranging from 70 to 81.