The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2013
Filed:
Aug. 07, 2008
Tetsuya Kunisawa, Kobe, JP;
Tetsuya Kunisawa, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
There are provided a rubber composition for coating a steel cord, containing 100 parts by mass of diene-based rubber; 0.5 to 5 parts by mass of a metal salt of an organic acid; and 30 to 100 parts by mass of a filler, wherein the filler contains 3 to 30 parts by mass of glass beads having a particle diameter of 10 to 100 μm, relative to 100 parts by mass of the diene-based rubber, and a tire reinforcement belt and a pneumatic tire using the rubber composition. The rubber composition reduces heat generation and improves adhesiveness with a steel cord. A pneumatic tire having a tire reinforcement belt using the rubber composition has excellent steering stability and rolling resistance.