MODIFIED NATURAL RUBBER LATEX AS WELL AS MANUFACTURING METHOD THEREOF, MODIFIED NATURAL RUBBER, RUBBER COMPOSITION, AND TIRE

摘要

PROBLEM TO BE SOLVED: To provide a modified natural rubber latex, as well as a manufacturing method thereof, capable of obtaining a modified natural rubber that can improve the low heat generation property (low loss property) of a rubber composition compared with a normal natural rubber, a modified natural rubber contained in the modified natural rubber latex, and a rubber composition that contains the modified natural rubber, and a tire using the rubber composition.;SOLUTION: The modified natural rubber latex, consisting of natural rubber molecules and a bridge region obtained by crosslinking between the natural rubber molecules, and containing the modified natural rubber whose number average molecular weight is 150,000-450,000, is obtained by a radical graft polymerization of a compound that has two or more polymerizable functional groups and one or more polar group in a molecular to the natural rubber latex containing the natural rubber molecules.;COPYRIGHT: (C)2013,JPO&INPIT