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US 5,665,153 AGranted
Bitumen compositions
AssigneeShell Oil Company
InventorsJean-Claude Desaix, Marie-Francoise Morizur, Denis Rabiot
Life of this patent
Estimating the term…
Abstract
Bitumen compositions comprising bitumen and at least one succinic anhydride derivative contained in the bitumen, processes for their preparation and their use in bitumen emulsions for road applications, e.g. surface dressings.
Claims5
A bitumen composition comprising bitumen and at least one alkene having a carbon chain length of 12 to 40 carbon atoms to which has been grafted one or more succinic anhydride functions.
Dependencies are inferred from the claim text.