| abstract |
The invention provides an acrylic rubber composition which exhibits excellent workability and is excellent in the balance among vulcanization characteristics, scorching property, mechanical properties of rubber, compression set and heat resistance; and vulcanizates thereof. An acrylic rubber composition characterized by comprising a carboxyl-containing acrylic rubber, a novolak type phenol resin salt of a diazabicycloalkene, and a polyamine, wherein the diazabicycloalkene is preferably 2,3,4,6,7,8,9,10-octa- hydropyrimido(1,2-a)azepine or 2,3,4,6,7,8-hexahydro- pyrrolo(1,2-a)pyrimidine and the polyamine is preferably an aromatic polyamine or an aliphatic polyamine. |