Drag reducing composition
OwnerEsa Karhu, Mika Karhu +2inventors
InventorsEsa Karhu, Mika Karhu, Leif Rockas, Hannu Harjuhahto
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Abstract
The invention relates to a concentrated, non-agglomerating, soluble and compatible drag reducing agent composition. It contains (a) from 1 to 60% of a polymer, e.g. non-crystalline and ultrahigh molecular weight poly-α-olefin, capable of reducing drag, and (b) from 40 to 99% of a natural fat or oil, e.g. linseed or rapeseed oil, based on the comined weight of (a) and (b). Preferably, it also contains (c) from 0.1 to 50% of a dispersion stabilising agent, e.g. a fatty acid soap, based on the combined weight of (a), (b) and (c).
Claims32
A drag reducing agent composition, characterized in that it comprises a dispersion containing:
- (a) 1-60% of a polymer capable of reducing drag, and
- (b) 40-99% of a natural fat or natural oil based on the combined weight of (a) and (b).
A composition according to any preceding claim, characterized in that said natural fat or natural fatty oil is a natural fat or fatty oil, the main component of which is based on lauric acid, palmitic acid, stearic acid, oleic acid, linoleic acid and/or myristic acid.
A composition according to any preceding claim, characterized in that the amount in said dispersion of said polymer is 5-50% by weight, preferably 10-40% by weight, most preferably about 20-30% by weight.
A composition according to any preceding claim, characterized in that the amount in said dispersion of said natural fat or natural oil is 50-95% by weight, preferably 60-90% by weight, most preferably 70-80% by weight.
A composition according to any preceding claim, characterized in that the amount in said dispersion of said dispersion stabilising agent is 0.5-10% by weight, preferably 1-5% by weight, most preferably 2-3% by weight.
Process according to any of clams 14-24, characterized in that after dispersing the polymer in said natural fat or natural fatty oil, said dispersion stabilising agent is added.
Process according to claim, characterized in that said dispersion stabilising agent is added under string, preferably under vigorous stirring, most preferably by means of a homogenization apparatus.
Dependencies are inferred from the claim text.