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US 4,045,362 AGranted
Deflated tire lubricant
AssigneeThe General Tire & Rubber Company
InventorsTiong H. Kuan, John G. Sommer
Life of this patent
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Abstract
To facilitate relative movement between the internal surface of a pneumatic tire which comes in contact when the tire is run in a deflated condition, the interior of the tire is coated with a lubricant. An example of the lubricant is as follows: Lubricant A. ethylene glycol base B. water C. polyethylene oxide D. polysaccharide E. cellulose fibers.
Claims3
A stable lubricant for a pneumatic tire for use when the tire is operated in an uninflated or deflated condition, said lubricant comprising:
- a. 100 parts of a water/ethylene-glycol mixture wherein there is at least one part of water for every 4 parts of ethylene glycol;
- b. from about 0.05 to about 2 parts by weight of a polyethylene oxide of a molecular weight of about 500,000;
- c. from about 0.15 to about 2 parts by weight of a polysaccharide having a molecular weight of at least about 10,000;
- and
- d. up to 8 parts by weight of cellulose fibers, said fibers having a length not more than 400 microns;
- a lubricant of a viscosity such that the fibers will remain dispersed when the tire is subjected to 200 g's at 70.degree. C.
3 more elements
Dependencies are inferred from the claim text.