Ashless DispersantsNova Additives

DS-2102

Polyisobutenyl succinimide (PIB 950)

Lower-nitrogen variant. Chosen where fluoroelastomer seal compatibility is the binding constraint — less free amine means less seal attack.

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Typical propertiesLiquid

Backbone: PIB 950
Nitrogen: 1.00 – 1.30%
Boron: —
TBN: 20 – 30mg KOH/g

Typical values, not a specification. The binding specification is the one on the certificate of analysis issued against each batch.

Chemical identity

CAS number: 84605-20-9

Cross-reference

Grades a formulator would benchmark DS-2102 against. Naming them is not a claim of equivalence — it is where to start the comparison.

Lubrizol 6420Infineum C9266

The chemistry

Ashless Dispersants

Soot and sludge suspension in engine oils

Typical treat rate2.0 – 8.0 %

Polyisobutenyl succinimides — a polar head that binds contaminant, an oil-soluble PIB tail that keeps it suspended. This is the largest additive class by volume in any crankcase formulation. Borated grades add antiwear and improve seal and thermal performance; higher-TBN grades carry more acid-neutralising reserve.

Used in

Passenger-car & heavy-duty engine oilsMarine cylinder oilsTwo-stroke oilsTransmission fluidsFuel additive packages

Where DS-2102 is specified

Engine Oils

Passenger-car, heavy-duty and gas engine crankcase formulations, including low-SAPS.

Driveline & Transmission

Automatic and manual transmission fluids, axle oils, EV reduction-gear fluids.

Other grades in Dispersant

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Documentation

A full technical data sheet, safety data sheet in the language of the receiving country, REACH status statement and SVHC declaration are issued with every enquiry for DS-2102. Certificates of analysis accompany each consignment and retained samples are held for the full shelf life.

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