Tokyo Institute of Technology

Daikin Industries, Ltd.

Sumitomo Rubber Industries Limited

Toyoda Gosei Co., Ltd.

Toyokazu Tsutsuba

Toshikazu Takata

Tsuyoshi Noguchi

Tadashi Kanbara

Hiromitsu Sogawa

Shunsuke Monjiyama

Akishige Seo

Naoki Iwase

Naoyuki Akahori

Shoko Nakahata

A rotaxane compound comprising one or more cyclic molecules and an axial molecule penetrating through inner holes of the cyclic molecules and having cap structures disposed lest the cyclic molecules should be detached, where one of the cyclic molecule and the axial molecule has one of a functional group being capable of reacting with silica and a functional group being capable of reacting with a carbon-carbon unsaturated bond, and the other of the cyclic molecule and the axial molecule has the other of the functional group being capable of reacting with silica and the functional group being capable of reacting with a carbon-carbon unsaturated bond.

Rotaxane compound

A crosslinked rubber composition contains ethylene-propylene-diene copolymer rubber crosslinked with a rotaxane compound having a cyclic molecule and an axial molecule penetrating through the cyclic molecule. In the crosslinked rubber composition, the ethylene-propylene-diene copolymer rubber contains vinylnorbornene, dicyclopentadiene, or tetrahydroindene as a diene component, and the rotaxane compound has a nitrile oxide group on the cyclic molecule and one end of the axial molecule, and the cyclic molecule is crown ether.

Crosslinked rubber composition and production method therefor

A compound of the formula (III): wherein Ris a hydrogen atom or an alkyl group; Ris a hydrogen atom or an alkyl group; and Ris a divalent organic group.

Nitrileoxide compound

The present invention provides a compound of the formula (I): wherein, A is R(R), N, O, S, or &#x2014;NR&#x2014;; Ris an s-valent organic group; Ris each independently, &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;NR&#x2014; or &#x2014;O&#x2014;P(&#x2550;O)OR&#x2014;; Rand Rare each independently a hydrogen atom or a hydrocarbon group; Ris each independently, a hydrocarbon group; Ris each independently, a hydrogen atom or a hydrocarbon group; and s is an integer of 1-10.

The present invention provides a compound of the formula (I): wherein, Ris a hydrogen atom or a hydrocarbon group; Ris &#x2014;R&#x2014;R; Ris &#x2014;R&#x2014;Ror &#x2014;R&#x2014;R; Ris a divalent organic group; Ris OH, SH, COOH or NHR; Ris a hydrogen atom or an alkyl group having 1-6 carbon atoms; and Ris a hydrogen atom or an alkyl group having 1-6 carbon atoms.

Growing community of inventors

Tokyo, Japan

Toyokazu Tsutsuba