VULCANIZABLE CIS-1,4-BUTADIENE RUBBER BASED COMPOSITION

摘要

FIELD: rubber industry. SUBSTANCE: composition comprises, wt parts: linear cis-1,4-butadiene rubber prepared in the presence of Ziegler-Natt catalyst system using, as variable valency metals, lanthanoid compounds, 100; and polybutadiene containing 1,2 units from 10 to 80% used as structural modifier, 1-100. Composition has low cold fluidity. Rubber mixes based on said composition have low vulcanization rate. EFFECT: improved properties of the vulcanizable composition. 12 ex, 1 tbl