Patent ID: 11932760
Assignee: TOYO TIRE CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 0:
1. A color rubber composition for tires, comprising 100 parts by mass of a rubber component, 0.2 to 20 parts by mass of a pigment other than black or white, 0.5 to 15 parts by mass of a petroleum wax, and 10 to 150 parts by mass of a white filler,
the petroleum wax containing normal alkanes and isoalkanes, and having a normal/iso ratio of 70/30 to 90/10 as a mass ratio of normal alkane to isoalkane,
the isoalkane content in the whole of the petroleum wax being 1.0 mass % or less for isoalkanes having 25 or less carbon atoms, 4.0 to 8.0 mass % for isoalkanes having 26 to 32 carbon atoms, 5.0 to 15.0 mass % for isoalkanes having 33 to 44 carbon atoms, and 1.0 mass % or more for isoalkanes having 45 or more carbon atoms,
the normal alkane content in the whole of the petroleum wax being 5.0 to 18.0 mass % for normal alkanes having 25 or less carbon atoms, 40.0 to 48.0 mass % for normal alkanes having 26 to 32 carbon atoms, 15.0 to 27.5 mass % for normal alkanes having 33 to 44 carbon atoms, and 2.0 mass % or more for normal alkanes having 45 or more carbon atoms.