Patent ID: 11912953
Assignee: PETROLIAM NASIONAL BERHAD (PETRONAS)
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. A lubricating oil composition according to claim 7, wherein R1, R2, R3 and R4 are C1 to C30 straight chain or branched alkyl and alkenyl groups, preferably C1 to C30 straight chain or branched alkyl groups, or
wherein R1, R2, R3 and R4 are C4 to C18 straight chain or branched alkyl groups, preferably C4 to C18 straight chain alkyl groups, or, wherein R1, R2 and R3 are the same and R4 is different to R1, R2 and R3.