Zeon Corporation

Masanobu Shinohara

Kei Sakamoto

Satoshi Kiriki

Tomonori Ogawa

Yasushi Nakano

Tsutomu Yoshimura

Tomonori Nakashima

Masato Sakamoto

Kazuhiro Ejiri

A method of producing cross-linked rubber including a step of reacting a polyether rubber composition at 130 to 200&#xb0; C., the polyether rubber composition containing 100 parts by weight of epihalohydrin monomer units, 0.1 to 100 parts by weight of a five-membered ring or six-membered ring nitrogen atom-containing aromatic heterocyclic type compound, and 0.1 to 10 parts by weight of at least one cross-linking agent which is selected from sulfur, a sulfur-containing compound, and triazine-based compound.

Method of production of cross-linked rubber

A nitrile rubber composition containing a carboxyl group-containing nitrile rubber and an allylamine-based polymer which contains units expressed by the following general formula (1) is provided. (In the general formula (1), R, R, and Rrespectively independently are one selected from a group including a hydrogen atom, alkyl group containing 1 to 4 carbon atoms which may have substituents, aryl group containing 6 to 12 carbon atoms which may have substituents, and halogen atom.).

Nitrile rubber composition and cross-linked rubber

A condensed heterocyclic compound which is shown by the following formula (I) and a composition containing an (a) organic material and (b) at least one type of the condensed heterocyclic compound are provided. (Y indicates a chemical single bond, &#x2014;S(&#x2550;O)&#x2014;, or &#x2014;SO&#x2014;. Rand Rindicate substitutable Cto Corganic groups. Zand Zindicate chemical single bonds or &#x2014;SO&#x2014;. Xand Xindicate hydrogen atoms etc. n and m respectively independently indicate integers of 0 to 2, where one of n and m is not 0).

Condensed heterocyclic compound and composition

There are provided a novel diarylamine compound represented by the following formula (I), (II) or (III), which has at least one signal attributable to the hydrogen of the N&#x2014;H moiety at 8.30 ppm to 9.00 ppm when a deuterated dimethyl sulfoxide solution of the diarylamine compound is analyzed byH-NMR; and an aging inhibitor, a polymer composition, a crosslinked rubber product and a molded article thereof, and a method of producing a diarylamine compound. In the formulas, Ato Aeach represent an aromatic group which may have a substituent; A represents an aromatic group or a cyclic aliphatic group, which may both have a substituent; L represents 1 or 2; and n represents 0 or 1.

Diarylamine compounds, aging inhibitor, polymer composition, crosslinked rubber product and molded article of the crosslinked product, and method of producing diarylamine compound

An acrylic rubber composition which contains, with respect to 100 parts by weight of acrylic rubber, a compound which is expressed by the following general formula (1) in 0.1 to 50 parts by weight and a cross-linking agent in 0.05 to 20 parts by weight is provided. 

Growing community of inventors

Tokyo, Japan

Masanobu Shinohara