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US 2011/0034360 A1Published application
Alpha-olefin/isobutene diblock copolymers
AssigneeBase SE
InventorsPhillip Hanefeld, Hans Peter Rath, Helmut Mach, Rainer Urban
Life of this patent
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Abstract
The present invention relates to diblock copolymers of the formula A-B which are formed from a polymer block A which is formed essentially from α-olefin units having from 6 to 22 carbon atoms, and a polymer block B which is formed essentially from isobutene units, to a process for their preparation, to their use in lubricant compositions and to lubricant compositions which comprise such diblock copolymers.
Claims22
A diblock copolymer of formula
- A-B,
- wherein:
- A is a polymer block A consisting essentially of, in reacted form, α-olefin units having from 6 to 22 carbon atoms;
- and
- B is a polymer block B consisting essentially of, in reacted form, isobutene units.
2 more elements
Dependencies are inferred from the claim text.