Asahi Kasei Chemicals Corporation

Jun-ichi Nakahashi

Fumiki Murakami

Atsushi Nanasawa

Tomoyuki Fujita

A flame retardant composition comprising a specific phenolic-based resin (A) and a specific phosphor compound (B) can be suitably used for a resin and can provide a resin composition which is excellent in flame retardancy, thermal resistance, moisture resistance, extrusion workability, demolding availability, thermal stability, impact resistance, mechanical properties and the like.

Flame retardant resin composition

A phosphazene composition which has a content of volatile components of not less than 0.02% by weight and not more than 1.0% by weight when it is heated at 200&#xb0; C. for 2 hours; is excellent in resistance to hydrolysis, and when the phosphazene composition is added to a resin, there is provided a resin composition which highly maintains the balance of resistance to hydrolysis, flame retardancy and stability of electric characteristics in a high-frequency field of not less than 1 GHz.

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Tokyo, Japan

Jun-ichi Nakahashi