Method for flatproofing a tire and wheel assembly and resulting flatproofed assembly
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United States of America Patent
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Sep 12, 2006
Grant Date -
Jan 13, 2005
app pub date -
Oct 16, 2003
filing date -
Jul 11, 2003
priority date (Note) -
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Abstract
A method is disclosed for flatproofing a tire and wheel assembly with a flexible, lightweight foam-fill by supplying at least two polyurethane reactive materials to a static mixer. The static mixer mixes the reactants, and a nucleating gas is supplied to the mixed reactants in the static mixer to form a liquid reactant mixture with entrained gas. The reactant mixture is injected into the tire and wheel assembly where the mixture reacts and foams replacing the air in the tire with a flexible, lightweight semi-open cell foam-fill. The resulting foam-filled tire and wheel assembly is then allowed to cure.
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