Electrically conductive resin

Abstract

Abstract PURPOSE:To provide an electrically conductive resin consisting of a copolymer of ethylene and an unsaturated carboxylic acid wherein said carboxylic acid forms a salt with a nitrogen-containing compound, having high antistatic property, transparency and oil resistance, and suitable as a packaging material for a high-quality precision electronic part such as IC. CONSTITUTION:Ethylene and an unsaturated carboxylic acid (e.g. acrylic acid, vinylacetic acid, maleic anhydride, etc.) are copolymerized preferably in the presence of a free radical generator at 150-300 deg.C and 50-6,000atm. A nitrogen- containing compound selected from amine compounds and quaternary ammonium salts (e.g. ethanediamine, pyrrolidine, tetraethyl ammonium salt, etc.) is added to the reaction system or to the resultant copolymer, and reacted until at least a part of said carboxylic acid forms the salt with said nitrogen-containing compound. The objective resin containing >=1.3m-mol/g-resin, preferably >=1.8m-mol/ g-resin of the nitrogen-containing compound can be produced by this process.

Inventors

• 👤 Shintaro Inasawa
• 👤 伸太郎 稲沢
• 👤 Akira Hasegawa
• 👤 明 長谷川
• 👤 Kiwamu Hirota
• 👤 広田　究

Bibliographic Details