Michael Jay Crawford

US Patent:

7073550, Jul 11, 2006

Filed:

Mar 17, 2004

Appl. No.:

10/802908

Inventors:

Leonard James Reiter - Norton OH, US
George Frank Balogh - North Canton OH, US
Michael Julian Crawford - Akron OH, US

Assignee:

The Goodyear Tire & Rubber Company - Akron OH

International Classification:

B60C 19/12
B29C 73/16

US Classification:

152503, 152504, 156115, 523166

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.

US Patent:

20060058442, Mar 16, 2006

Filed:

Aug 9, 2005

Appl. No.:

11/200311

Inventors:

Marc Weydert - Strassen, LU
Leonard Reiter - Norton OH, US
Michael Crawford - Akron OH, US

International Classification:

C08K 3/04
C08K 3/34

US Classification:

524492000, 524495000

Abstract:

The invention relates to a tire having a tread of a rubber composition containing a specialized high vinyl styrene/butadiene copolymer elastomer which contains reinforcing filler as a combination of rubber reinforcing carbon black and synthetic amorphous precipitated silica together with a coupling agent for said precipitated silica as an alkoxyorganomercaposilane having its mercapto moiety blocked which becomes unblocked to enable the mercapto moiety to interact with the specialized high vinyl styrene/butadiene copolymer elastomer. The tread rubber composition may optionally additionally contain an alkylsilane and/or starch/plasticizer composite.