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:
Jun. 03, 2003
Filed:
Dec. 27, 2000
Naohiko Kikuchi, Kobe, JP;
Takeshi Ota, Kobe, JP;
Satoru Nippa, Niihama, JP;
Mamoru Uchida, Kobe, JP;
Other;
Abstract
Disclosed herein is an aluminum hydroxide having specific characteristics, and a tire tread rubber composition and a pneumatic tire employing the aluminum hydroxide, which allow grip performance and abrasion resistance to increase and rolling resistance to decrease and are superior in processibility. The aluminum hydroxide has a loosed bulk density of not more than 0.60 g/cm , a DOP oil absorption of at least 70 cm /100 g and less than 250 cm /100 g, and a BET specific surface area of at least 30 m /g and less than 350 m /g. 5-150 parts by weight of the aluminum hydroxide is blended with 100 parts by weight of a rubber component to obtain the tire tread rubber composition. The rubber component preferably includes at least 60 parts by weight of styrene-butadiene rubber having a styrene content of 20-60% by weight.