Hydrogenated polyether-modified polybutadienes and processes for preparation thereof

A process for preparing one or more hydrogenated polyether-modified polybutadienes, comprising:

• a) reacting at least one polybutadiene (A) with at least one epoxidizing reagent (B) to give at least one epoxy-functional polybutadiene (C);
• b) reacting the at least one epoxy-functional polybutadiene (C) with at least one hydroxy-functional compound (D) to give at least one hydroxy-functional polybutadiene (E);
• c) reacting the at least one hydroxy-functional polybutadiene (E) with at least one epoxy-functional compound (F) to give at least one polyether-modified polybutadiene (G);
• and
• d) hydrogenating the at least one polyether-modified polybutadiene (G) to give at least one hydrogenated polyether-modified polybutadiene (H).