Shanghai Yu Hao Chemical Technology Co., Ltd. perennial cash supply Russia Bromobutyl BBK-232 Product Name: Bromobutyl BBK-232 Origin: Russia Nizhnekamsk (NIZHNEKAMASK) Performance:. Bromobutyl BBK-232, Department of Russian production. Butyl rubber is an unsaturated brominated product as unsaturation of 1.8% (mol). The product is modified butyl rubber, this species overcome some of the shortcomings of butyl rubber, to improve and enhance the product performance. Mainly used in the tire industry and pharmaceutical packaging products industry.