Asphaltene dispersants - inhibitors

Details Asphaltene dispersants - inhibitors Asphaltene dispersants - inhibitors

1989-11-08

1991-06-04

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

525134, 525142, 525143, C08L 3306

Patent

active

050214985

ABSTRACT:
An asphalt/asphaltene dispersant comprising an admixture of polymer A and polymer B ranging from 100 to 10 weight percent A to from 10 to 100 weight percent B. Wherein polymer A is an alkyl substituted phenol-formaldehyde liquid resin having a weight average molecular weight ranging from about 1000 to about 20,000 and an alkyl substituent containing from 4 to 24 carbon atoms, with alkyl substituent may be linear or branched alkyl group. Polymer B is a hydrophilic-lipophilic vinylic polymer.

REFERENCES:
patent: 2819237 (1958-01-01), Daniel

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