| abstract |
PURPOSE: To obtain the title composition having excellent tensile strength and tear strength, etc., and suitable for industrial goods such as belt, hose, etc., by blending chloroprene rubber with a carbon black, silica and a specific dinitrodiamine compound. n CONSTITUTION: The aimed composition obtained by blending chloroprene rubber with a carbon black, silica and dinitrodiamine compound [e.g. a compound expressed by formula II (Z is formula III)] expressed by formula I (X is bivalent chain aliphatic, cyclic aliphatic or aromatic and may contain halogen or O in the group; R 1 is H, chain aliphatic, cyclic aliphatic or aromatic and N may be mutually further coupled through R 1 when both of X and R 1 are chain aliphatic; R 2 and R 3 are H or 1-12C alkyl or R 2 and R 3 may be coupled to form a ring). n COPYRIGHT: (C)1990,JPO&Japio |