Other

Tetsuyo Omura

Yoichi Ozawa

Takuo Sone

Iwakazu Hattori

Tatsuo Fujimaki

Koichi Morita

Koji Masaki

H Jerrold Miller

In general the present invention provides a functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I)A-R&#x2014;Z&#x2003;&#x2003;(I)where Ris a divalent bond or divalent organic group comprising from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R, and Z are substituents that will not protonate a pseudo-living polymer.

Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agents

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Kodaira, Japan

Tetsuyo Omura