| abstract |
ABSTRACT OF THE DISCLOSURE A process for producing polyurea resin in which an amine compound containing aromatic polyamine and specific aminobenzoate derivative and polyisocyanate are reacted. The amine compound has the formula: wherein R represents n-valent polyalkylene, polyalkylene ether, or polyalkylene polyester group with an average molecular weight of 200 or more, provided that the group may contain unsaturated bond; A represents an oxygen atom or an imino group, m is an integer of 1 to 3, and n is an integer of 2 to 4. The polyurea resin is decreased in temperature dependence and improved in hardness, strength, toughness, and heat resistance. |