Zeon Corporation

Nippon Sheet Glass Company, Limited

Osamu Senda

Tomonori Nakashima

A latex of a highly saturated nitrile rubber wherein the highly saturated nitrile rubber contains &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile monomer units in a ratio of 10 to 60 wt %, has an iodine value of 120 or less, and has a weight average molecular weight of solubles in chloroform of 100,000 or less, and when removing volatiles contained in the latex and making a film of the highly saturated nitrile rubber, a loss tangent tan &#x3b4;at 50&#xb0; C. of the film is 0.3 to 0.6 and a complex torque S* at the time of 100% shear strain at 100&#xb0; C. of the film is 20 dNm or less, and an adhesive composition containing the latex are provided.

Latex of the highly saturated nitrile rubber and adhesive composition

Provided are a reinforcing cord using a reinforcing fiber treating agent for improving the performance, particularly oil resistance, of rubber products, and a highly oil-resistant rubber product. By using a reinforcing fiber treating agent that has an &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile monomer unit content of 30-55 wt %, an acid group-containing &#x3b1;,&#x3b2;-ethylenically unsaturated monomer unit content of 3-20 wt %, an iodine value of 120 or less and a tetrahydrofuran insoluble fraction of 30 wt % or more, the oil resistance of the reinforcing cord and thus the oil resistance of rubber products using the reinforcing cord are improved.

Growing community of inventors

Tokyo, Japan

Osamu Senda