Pneumatic tire having built-in colored sealant layer and...

Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube

Reexamination Certificate

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Details

C152S504000, C156S115000, C523S166000

Reexamination Certificate

active

07073550

ABSTRACT:
This invention relates to a pneumatic tire having a built-in non-black colored sealant layer and its preparation. The sealant layer is derived from a sealant precursor layer comprised of a butyl rubber, organoperoxide, particulate, synthetic amorphous silica and plant-derived organic agricultural seed flour, together with a non-black colored colorant. The butyl rubber-based sealant precursor layer is build into the tire to form a tire assembly and the butyl rubber component of the sealant precursor layer is depolymerized during a subsequent curing of the tire at an elevated temperature in a suitable mold to form the tire having the resultant built-in sealant. The particulate plant derived organic agricultural seed flour is a renewable raw material in a sense that it can be replenished in nature and therefore not as a significant depletion of non-renewable natural resource. The agricultural plant seed flour is comprised of at least a portion of a ground plant seed (e.g. whole or partial seed portion including for example its nucleus and/or shell) of an agricultural seed producing plant such as, for example, wheat, rye, rice, barley, oat, mullet, soybean and/or corn. The sealant layer may also contain one or more of a liquid polyisoprene and short organic fibers. Preferably, the amorphous silica is a precipitated silica, namely aggregates of primary silica particles.

REFERENCES:
patent: 1061546 (1913-05-01), Kather
patent: 3048509 (1962-08-01), Sweet et al.
patent: 4140167 (1979-02-01), Bohm et al.
patent: 4171237 (1979-10-01), Bohm et al.
patent: 4228839 (1980-10-01), Bohm et al.
patent: 4895610 (1990-01-01), Egan
patent: 5059636 (1991-10-01), Grenga
patent: 6837287 (2005-01-01), Smith, Sr. et al.
patent: 2003/0155058 (2003-08-01), Saito
patent: 2003/0230376 (2003-12-01), Smith, Sr. et al.

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