Inventors:
Lu H. Tung - Midland MI
Larry L. Kirkby - Midland MI
Charles E. Lyons - Midland MI
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C08F23610
Abstract:
Butadiene is partially polymerized anionically in the presence of styrene to form a styrene-butadiene rubber of low styrene content. The resultant living polymer is terminated, butadiene removed, and optionally the styrene polymerized with or without additional styrene to form impact resistant styrene polymer.