Structurally supported resilient tire and materials
AssigneeMichelin Recherche et Technique S.A.
InventorMichael D. Grah
Life of this patent
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Abstract
The invention comprises an improved non-pneumatic tire, and particularly a shear layer for a non-pneumatic tire wherein the shear layer comprises an elastomeric composition that includes a metal salt of a carboxylic acid. The shear layer preferably comprises a dienic elastomeric composition that includes a metal salt of a carboxylic acid. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate, and a peroxide curative agent is employed.
Claims26
An structurally-supported resilient tire comprising a tread, sidewall portions extending radially inward from the tread portion, and bead portions at the end of the sidewall, and further comprising an annular band disposed radially inward of the tread portion, wherein the annular band comprises an elastomeric shear layer, a first membrane adhered to the radially innermost extent of the elastomeric shear layer, and a second membrane adhered to the radially outermost extent of the elastomeric shear layer, the improvement of which comprises the use of a shear layer comprising an elastomeric composition having a metal salt of a carboxylic acid.
A structurally-supported resilient tire comprising a tread, sidewall portions extending radially inward from the tread portion, and bead portions at the end of the sidewall, and further comprising an annular band disposed radially inward of the tread portion, wherein the annular band comprises an elastomeric shear layer, a first membrane adhered to the radially innermost extent of the elastomeric shear layer, and a second membrane adhered to the radially outermost extent of the elastomeric shear layer, the improvement of which comprises the use of a shear layer comprising an elastomeric composition having a metal salt of a carboxylic acid, and wherein the elastomeric composition is selected from the group consisting of dienic elastomers.
A structurally-supported resilient tire comprising a tread, sidewall portions extending radially inward from the tread portion, and bead portions at the end of the sidewall, and further comprising an annular band disposed radially inward of the tread portion, wherein the annular band comprises an elastomeric shear layer, a first membrane adhered to the radially innermost extent of the elastomeric shear layer, and a second membrane adhered to the radially outermost extent of the elastomeric shear layer, the improvement of which comprises the use of a shear layer comprising an elastomeric composition having a metal salt of a carboxylic acid, and wherein the carboxylic acid is selected from the group consisting of unsaturated carboxylic acids.
A structurally-supported resilient tire comprising a tread, sidewall portions extending radially inward from the tread portion, and bead portions at the end of the sidewall, and further comprising an annular band disposed radially inward of the tread portion, wherein the annular band comprises an elastomeric shear layer, a first membrane adhered to the radially innermost extent of the elastomeric shear layer, and a second membrane adhered to the radially outermost extent of the elastomeric shear layer, the improvement of which comprises the use of a shear layer comprising an elastomeric composition having a metal salt of a carboxylic acid, and wherein the metal salt is selected from the group consisting of zinc diacrylate and zinc dimethacrylate.
A structurally-supported resilient tire comprising a tread, sidewall portions extending radially inward from the tread portion, and bead portions at the end of the sidewall, and further comprising an annular band disposed radially inward of the tread portion, wherein the annular band comprises an elastomeric shear layer, a first membrane adhered to the radially innermost extent of the elastomeric shear layer, and a second membrane adhered to the radially outermost extent of the elastomeric shear layer, the improvement of which comprises the use of a shear layer comprising an elastomeric composition having a metal salt of a carboxylic acid, wherein said elastomeric shear layer has a shear modulus of elasticity of about 3 MPa to about 7 MPa.
A structurally-supported resilient tire comprising a tread, sidewall portions extending radially inward from the tread portion, and bead portions at the end of the sidewall, and further comprising an annular band disposed radially inward of the tread portion, wherein the annular band comprises an elastomeric shear layer, a first membrane adhered to the radially innermost extent of the elastomeric shear layer, and a second membrane adhered to the radially outermost extent of the elastomeric shear layer, the improvement of which comprises the use of a shear layer comprising an elastomeric composition having a metal salt of a carboxylic acid, wherein the shear layer comprises:
- (a) for 100 phr elastomer;
- (b) approximately 10 to 60 phr metal salt of carboxylic acid;
- (c) approximately 30 to 70 phr filler;
- and
- (d) approximately 0.5 to 2 phr peroxide.
Dependencies are inferred from the claim text.