C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 255/00 (2006.01) B01F 17/52 (2006.01) C08F 8/00 (2006.01) C08F 8/46 (2006.01) C10L 1/14 (2006.01) C10L 1/16 (2006.01) C10L 1/196 (2006.01) C10L 1/198 (2006.01) C10L 1/22 (2006.01) C10L 1/236 (2006.01) C10L 1/238 (2006.01) C10L 1/24 (2006.01) C10L 10/00 (2006.01) C10M 129/04 (2006.01) C10M 129/26 (2006.01) C10M 129/95 (2006.01) C10M 133/04 (2006.01) C10M 133/52 (2006.01) C10M 143/00 (2006.01) C10L 1/18 (2006.01) C10L 1/20 (2006.01) C10L 1/26 (2006.01) C10L 1/30 (2006.01)
Patent
CA 2110463
Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.5 to about 5 carboxylic acid producing moieties per polymer chain, and (B) at least one non-aromatic nucleophilic post-treating reactant selected from (i) amine compounds containing only a single reactive amino group per molecule, (ii) alcohol compounds containing only a single hydroxy group per molecule, (iii) polyamine compounds containing at least two reactive amino groups per molecule, (iv) polyol compounds containing at least two reactive hydroxy groups per molecule, (v) aminoalcohol compounds containing at least one reactive amino group and at least one reactive hydroxy group per molecule, and (vi) mixtures of (i) to (v); provided that when said post-treating reactant includes one or more of (iii), (iv) or (v), the reaction between (A) and (B) is conducted in the presence of sufficient chain-stopping or end-capping co-reactant (C) to ensure that the grafted and post-reacted product mixture is gel-free.
Emert Jacob
Lohse David John
Lundberg Robert Dean
Borden Ladner Gervais Llp
Emert Jacob
Exxonmobil Chemical Patents Inc.
Lohse David John
Lundberg Robert Dean
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