Modified plant fibers, additive for rubber, process for producing same, and rubber composition

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United States of America Patent

PATENT NO 10184013
APP PUB NO 20180162960A1
SERIAL NO

15578631

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Abstract

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Provided are modified plant fibers suitable for addition to rubber; an additive for rubber comprising the modified plant fibers which can be micronized and dispersed easily and highly when adding to rubber; a method of preparing the additive for rubber; and a rubber composition comprising the additive for rubber. Modified plant fibers (A) in which plant fibers (a) and a modified synthetic rubber (B) are covalently bonded wherein the ratio of the modified synthetic rubber (B) relative to 100 parts by weight of the plant fibers (a) is 5 to 100 parts by weight. An additive for rubber comprising 20 to 75 weight % of the modified plant fibers (A) according to claim 1 and 25 to 80 weight % of a processing agent for rubber (C), wherein the number average molecular weight of the processing agent for rubber (C) is 400 to 60,000, and the glass transition point of the processing agent for rubber (C) is 100° C. or less, and wherein the additive for rubber includes plant fibers in the ratio of 10 to 65 weight %.

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Patent Owner(s)

Patent OwnerAddress
SEIKO PMC CORPORATION3-6 NIHONBASHI HONCHO 3-CHOME CHUO-KU TOKYO 1030023

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuroki, Daisuke Chiba, JP 16 11
Miyamori, Ryo Chiba, JP 4 8
Ohira, Syuichi Chiba, JP 2 2

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