Patent ID: 6431236
Filing Date: 2002-08-13
Classification: B60C,Y10T

Abstract:
A pneumatic tire having a rubber composition provided at the at least one portion thereof, at least a portion of said rubber composition comprising 100 part by weight of at least one synthetic rubber and 5 to 100 parts by weight of strontium aluminate or calcium aluminate-containing long afterglow phosphorescent substance having at least one compound selected from the group consisting of (a) SrAl2O4:Eu, Dy, (b) Sr4Al14O25:Eu, Dy, (c) CaAl2O4:Eu, Nd, (d) SrAl2O4:Eu and (e) m(Sr1-xEUx) OÂ·nAL2O3Â·yB2O3, wherein 1&lE;1&lE;m&lE;5, 1&lE;n&lE;8, 0.001&lE;x&lE;0.1, 0.005&lE;y&lE;0.35, having an average particle size of 1 to 100 &mgr;m and having no substantial amounts of carbon black and staining antioxidant, and crosslinked with a crosslinking agent other than sulfur.