Modified natural rubber particle, production method thereof, and modified natural rubber latex

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United States of America Patent

PATENT NO 8791209
APP PUB NO 20130144012A1
SERIAL NO

13685259

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Abstract

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A modified natural rubber particle having carbon-carbon double bands assigned to multifunctional vinyl monomers graft-copolymerized onto the surface of the modified natural rubber particle, which is prepared by graft-copolymerization of multifunctional vinyl monomers having two or more carbon-carbon double bonds onto natural rubber particles or deproteinized natural rubber particles. One of the methods for producing a modified natural rubber particle includes the steps of: forming inclusion complex of the multifunctional vinyl monomers having two or more carbon-carbon double bonds with a guest-protecting agent to protect at least one of the double bonds of the multifunctional vinyl monomers; graft-copolymerizing the resulting inclusion complex onto natural rubber particles or deproteinized natural rubber particles; and deprotecting the protected double bonds by removing the guest-protecting agent from the obtained graft-copolymer.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO RIKO COMPANY LIMITED1 HIGASHI 3-CHOME KOMAKI-SHI AICHI 485-8550

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawahara, Seiichi Nagaoka, JP 8 37
Pukkate, Nanthaporn Komaki, JP 2 2
Shibahara, Akihiro Inuyama, JP 10 54
Wakisaka, Osamu Kasugai, JP 3 2
Yamamoto, Yoshimasa Nagaoka, JP 23 189

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