Lubricant compositions and methods
AssigneeLee County Mosquite Control District
InventorRichard Levy
Life of this patent
Estimating the term…
Abstract
A substrate is coated with an essentially water-free composition. The composition includes a superabsorbent polymer that absorbs from about 25 to greater than 100 times its weight in water and a material for lubricating the substrate. The superabsorbent polymer may be a polymer of acrylic acid, acrylamide or acrylate. Also included is a method for protecting a substrate from the effects of water or water migration.
Claims21
A substrate coated with an essentially water-free composition, wherein said composition comprises a superabsorbent polymer that absorbs greater than 100 times its weight in water in combination with a material for lubricating a surface wherein said material for lubricating a surface comprises:
- (1) a lubricating metal and alloy thereof, lubricating metal chalcogenide, halide, carbonate, silicate or phosphate, or a particulate lubricating metal nitride, or a carbon lubricant;
- or
- (2) a silicate ester, polyphenyl ether, organic phosphate, biphenyl, phenanthrene, or phthalocyanine compound;
- (3) said material for lubricating a surface optionally containing a lubricant comprising an organic lubricant, inorganic lubricant, or a lubricant additive;
- (4) or mixtures thereof.
A method of protecting a substrate from the affects of water or water migration comprising coating said substrate with an essentially water-free composition, wherein said composition comprises a superabsorbent polymer that absorbs greater than 100 times its weight in water in combination with a material for lubricating a surface wherein said material for lubricating a surface comprises:
- (1) a lubricating metal and alloy thereof, lubricating metal chalcogenide, halide, carbonate, silicate or phosphate, or a particulate lubricating metal nitride, or a carbon lubricant;
- or
- (2) a silicate ester, polyphenyl ether, organic phosphate, biphenyl, phenanthrene, or phthalocyanine compound;
- (3) said material for lubricating a surface optionally containing a lubricant comprising an organic lubricant, inorganic lubricant, or a lubricant additive;
- (4) or mixtures thereof.
Dependencies are inferred from the claim text.