Patent Number: 7,534,839

Title: Sequentially terminated elastomers

Abstract: Anionically-polymerized living polymers are sequentially functionalized with certain agents X' and Y'. A method of preparing a functionalized polymer comprising the steps of reacting the polymer with a functionalizing agent X', and then further reacting the polymer with a functionalizing agent Y'.

Inventors: Lawson; David F. (Uniontown, OH), Rademacher; Christine (Akron, OH), Robertson; Christopher (Akron, OH)

Assignee: Bridgestone Corporation

International Classification: C08C 19/12 (20060101); C08C 19/20 (20060101); C08C 19/22 (20060101); C08C 19/25 (20060101); C08C 19/30 (20060101); C08F 8/30 (20060101)

Expiration Date: 2021-05-19 0:00:00