Puncture sealing composition and tire

Details Puncture sealing composition and tire Puncture sealing composition and tire

C - Chemistry, Metallurgy

08

L

400/1116, 400/18

C08L 7/00 (2006.01) C08L 9/00 (2006.01) C08L 23/16 (2006.01)

Patent

CA 1071785

ABSTRACT OF THE DISCLOSURE A pneumatic tire of the tubeless type, em- bodying a layer of puncture sealant composition based on a major proportion of low molecular weight liquid elastomer with a minor proportion of a high molecular weight elastomer, containing a crosslinking agent in an amount sufficient to give a partial cure. An ex- sample of the composition of the invention is a blend of 60 parts of depolymerized natural rubber and 40 parts of cis-polyisoprene, partially crosslinked by the provide a gel content of about 40%.

246948

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