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US 6,855,673 B2Granted
Freeze tolerant friction control compositions
AssigneeKelsan Technologies Corp.
InventorsJohn Cotter, Don Eadie
Life of this patent
Estimating the term…
Abstract
According to the invention there is provided a liquid friction control composition for use in low temperature conditions, which comprises a rheological control agent, a consistency modifier and a freezing point depressant. The liquid friction control composition may also comprise other components such as a retentivity agent, an antioxidant, a friction modifier, a lubricant, a wetting agent, and a preservative.
Claims31
A friction control composition comprising:
- (a) from about 30 to about 55 weight percent water;
- (b) from about 0.5 to about 20 weight percent of a rheological control agent;
- (c) from about 0.1 to about 20 weight percent of a consistency modifier;
- (d) from about 10 to about 30 weight percent of a freezing point depressant, and
- one or more of
- (i) from about 0 to about 20 weight percent retentivity agent;
- (ii) from about 0 to about 30 weight percent lubricant;
- and
- (iii) from about 0.5 to about 30 weight percent friction modifier.
6 more elements
A friction control composition comprising:
- (a) from about 30 to about 55 weight percent water;
- (b) from about 0.5 to about 20 weight percent of a theological control agent selected from the group consisting of bentonite;
- hectorite;
- caseine;
- carboxymethylcellulose;
- carboxy-hydroxymethyl cellulose;
- cellulose substituted with a substituent selected from the group consisting of methyl, hydroxypropyl, hydroxyethyl, and a mixture thereof;
- ethoxymethylcellulose;
- chitosan;
- a starch;
- and a mixture thereof;
- (c) from about 0.1 to about 20 weight percent of a consistency modifier;
- (d) from about 10 to about 30 weight percent of a freezing point depressant;
- (e) from about 0 to about 20 weight percent retentivity agent, and
- (f) from about 1 to about 30 weight percent lubricant.
12 more elements
Dependencies are inferred from the claim text.