	US 11,939,550 B2
	Borated detergents and their lubricating applications
Thomas Daniel Wilkinson, Abingdon (GB); Oliver Delamore, Abingdon (GB); Alexander Coxon, Abingdon (GB); Marcus Popowicz, Abingdon (GB); Ara Samonte, Abingdon (GB); and Mallika Rana, Abingdon (GB)
Assigned to Infineum International Limited, Abingdon (GB)
Filed by Infineum International Limited, Oxford (GB)
Filed on Dec. 2, 2022, as Appl. No. 18/061,145.
Claims priority of application No. 21213439 (EP), filed on Dec. 9, 2021.
Prior Publication US 2023/0183593 A1, Jun. 15, 2023
Int. Cl. C10M 139/00 (2006.01); C07C 65/10 (2006.01); C10M 169/04 (2006.01); C10N 30/00 (2006.01); C10N 30/04 (2006.01); C10N 30/10 (2006.01)

CPC C10M 139/00 (2013.01) [C07C 65/10 (2013.01); C10M 169/04 (2013.01); C10M 2203/003 (2013.01); C10M 2227/061 (2013.01); C10N 2030/041 (2020.05); C10N 2030/10 (2013.01); C10N 2030/43 (2020.05); C10N 2030/52 (2020.05)]

21 Claims

1. An overbased alkaline earth metal hydrocarbyl-substituted salicylate detergent comprising both carbonate and borate moieties and exhibiting the following characteristics:

a basicity index of at least 3.8;

a ratio of soap content to mass % boron is greater than 55 mmol/kg;

a soap content of at least 330 mmol/kg and less than or equal to 500 mmol/kg;

a TBN, measured according to ASTM D2896, of at least 220 mg KOH/g; and

a mass ratio of borate to carbonate from 0.75 to 6.0,

wherein the alkaline earth metal comprises calcium and/or magnesium, and the hydrocarbyl substitution comprises 9 to 30 carbon atoms.