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US 5,341,863 AGranted
Tire with tread composition
AssigneeThe Goodyear Tire & Rubber Company
InventorsPaul H. Sandstrom, Raymond B. Roennau
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AssigneeThe Goodyear Tire & Rubber Company
InventorsPaul H. Sandstrom, Raymond B. Roennau
Estimating the term…
A pneumatic tire having a sulfur cured tread is provided comprised of at least one diene rubber and a low density polyethylene having a crystalline melt point in a range of about 104.degree. C. to about 115.degree. C., wherein the said LDPE is mixed with the said rubber at a temperature of about 120.degree. C. to about 170.degree. C. prior to sulfur vulcanizing the blend. A process is also provided for producing a tire in which a hot cured tire is removed from its rigid mold where the tread is comprised of at least one diene rubber and a low density polyethylene (LDPE) having a crystalline melt point in a range of about 104.degree. C. to about 115.degree. C.; and wherein the said LDPE is mixed with the said unvulcanized rubber at a temperature of about 120.degree. C. to about 170.degree. C.
A pneumatic rubber tire having a sulfur cured, diene rubber-based thread which is comprised of a blend, based on 100 parts by weight of sulfur curable diene rubber-based elastomers, of (A) 100 parts by weight of at least one sulfur vulcanizable diene based rubber, and (B) about 5 to about 15 parts by weight low density polyethylene (LDPE) having a density of about 0.91 to 0.918 gm/cc, a melt index of about 0.2 to about 20 and a crystalline melt point in a range of about 104.degree. C. to about 115.degree. C. wherein the said LDPE is mixed with the said rubber at a temperature of about 120.degree. C. to about 170.degree. C. prior to sulfur vulcanizing the blend.
Dependencies are inferred from the claim text.