Tire balancing composition and method of balancing a tire using the same
First Claim
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1. A tire balancing gel composition, comprising:
- (a) an oil component selected from the group consisting of polybutene oils, paraffinic oils, naphthenic oils, castor oil, jojoba oil, pentaerythritol esters of fatty acids and other polyol esters, alkyl polypropylene glycol ethers and other alkyl ethers of polyols or polyglycols, polypropylene oils, and poly-alpha-olefin oils, and mixtures thereof;
(b) a gel former component selected from the group consisting of hydrophilic fumed silica, hydrophobic fumed silica, polydimethylsiloxane coated fumed silica, clay, metal soaps, asbestos fibers, and mixtures thereof; and
,(c) a viscosity index improving agent component selected form the group consisting of poly-alkyl-methacrylates, styrene-ethylene-butylene-styrene block copolymers, styrene-ethylene-propylene block copolymers, polyisobutylenes, ethylene-propylene copolymers, hydrogenated butadiene-styrene-copolymers, polymers of fumaric acid esters and maleic acid esters, polyhydroxycarboxylic acid esters or amides, and mixtures thereof,in which said components (a), (b) and (c) are provided in an effective amount to gel said tire balancing gel composition and such that said gel undergoes a transformation from gel state to liquid state when subject to an effective amount of vibrational pressures.
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Abstract
A tire gel balancing composition having a Storage modulus of between 3000 and 15000 Pa and the Specific Gravity less than 1000 kg/m3 in the temperature range between -20° and +90° C., preferably its Storage modulus is about 9000 Pa, is capable of balancing tires by being able to flow under the vibrations caused by imbalance in a wheel assembly. The composition preferably comprises a mixture of: 1) paraffinic oils, polybutene oils, polyol esters or polyol ethers; 2) hydrophobic or hydrophilic fumed silica; 3) poly-alkyl-methacrylates, styrene-ethylene-propylene block copolymers or polyhydroxycarboxyl acid derivatives; and optionally corrosion inhibitors and antioxidants.
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Citations
14 Claims
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1. A tire balancing gel composition, comprising:
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(a) an oil component selected from the group consisting of polybutene oils, paraffinic oils, naphthenic oils, castor oil, jojoba oil, pentaerythritol esters of fatty acids and other polyol esters, alkyl polypropylene glycol ethers and other alkyl ethers of polyols or polyglycols, polypropylene oils, and poly-alpha-olefin oils, and mixtures thereof; (b) a gel former component selected from the group consisting of hydrophilic fumed silica, hydrophobic fumed silica, polydimethylsiloxane coated fumed silica, clay, metal soaps, asbestos fibers, and mixtures thereof; and
,(c) a viscosity index improving agent component selected form the group consisting of poly-alkyl-methacrylates, styrene-ethylene-butylene-styrene block copolymers, styrene-ethylene-propylene block copolymers, polyisobutylenes, ethylene-propylene copolymers, hydrogenated butadiene-styrene-copolymers, polymers of fumaric acid esters and maleic acid esters, polyhydroxycarboxylic acid esters or amides, and mixtures thereof, in which said components (a), (b) and (c) are provided in an effective amount to gel said tire balancing gel composition and such that said gel undergoes a transformation from gel state to liquid state when subject to an effective amount of vibrational pressures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification