Cationic natural rubber latex and tire puncture sealant using same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9919484
APP PUB NO 20150321430A1
SERIAL NO

14651869

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Abstract

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The present invention provides: a cationic natural rubber latex comprising cationic natural rubber microparticles in which the surfaces of natural rubber microparticles are coated by a cationic polymer, a weight average molecular weight of the cationic polymer being from 3000 to 150000, a concentration of the cationic natural rubber being from 30 to 70% by mass, a viscosity at 20° C. being 500 mPa·s or less, and surface potential of the cationic natural rubber microparticles being −3 mV or less; and a tire puncture sealant comprising the cationic natural rubber latex and an acidic resin emulsion, a mass ratio of a solid content of the cationic natural rubber latex to a solid content of the acidic resin emulsion being from 90:10 to 10:90. Such tire puncture sealant has superior puncture-sealing ability, storage stability, and workability.

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Patent Owner(s)

Patent OwnerAddress
THE YOKOHAMA RUBBER CO LTD36-11 SHIMBASHI 5-CHOME MINATO-KU TOKYO 105-8685

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Naruse, Masahiro Hiratsuka, JP 21 12
Okamatsu, Takahiro Hiratsuka, JP 61 95
Takahara, Hideyuki Hiratsuka, JP 17 45

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