Modified natural rubber, method for producing same, rubber composition, and pneumatic tire

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United States of America Patent

PATENT NO 9181355
APP PUB NO 20130066021A1
SERIAL NO

13699533

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Abstract

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The present invention provides a modified natural rubber having a reduced tan δ, a method for producing the modified natural rubber, a rubber composition produced using the modified natural rubber, and a pneumatic tire produced using the rubber composition. The present invention also provides a modified natural rubber having a reduced tan δ, a method for producing the modified natural rubber, a rubber composition produced using the modified natural rubber and achieving good fuel economy and abrasion resistance at the same time, and a pneumatic tire produced using the rubber composition. The present invention relates to a modified natural rubber having a phosphorus content of 200 ppm or less and a total content of sodium and potassium of 350 ppm or less. The invention also relates to a modified natural rubber having a phosphorus content of 200 ppm or less and a nitrogen content of 0.2% by mass or less.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO RUBBER INDUSTRIES LTDKOBE CITY JAPAN'S HYOGO CENTRAL FLANK BANG TOWN 3 CHOME 6 NO 9 KOBE-SHI HYOGO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichikawa, Naoya Kobe, JP 42 437
Kanyawararak, Kamalin Nakhon Pathom, TH 4 12
Sakaki, Toshiaki Kobe, JP 40 586
Tarachiwin, Lucksanaporn Nakhon Pathom, TH 6 15

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