Hyperbranched maleic anhydride-diene polymers and use as...

Details Hyperbranched maleic anhydride-diene polymers and use as... Hyperbranched maleic anhydride-diene polymers and use as...

C - Chemistry, Metallurgy

08

F

C08F 279/00 (2006.01) C08F 222/06 (2006.01) C08F 236/20 (2006.01) D06M 15/263 (2006.01)

Patent

CA 2583895

A hyperbranched polymer having pendent olefinic groups and comprising polymer units derived from one or more terminally-unsaturated, acyclic aliphatic diene and polymer units derived from maleic anhydride. Optionally, the hyperbranched polymer may further comprise polymer units derived from one or more 1-alkenes and/or a chain transfer agent. A process to prepare the hyperbranched polymer comprises contacting maleic anhydride with at least one terminally unsaturated acyclic aliphatic diene having at least 7 carbon atoms in the presence of an effective amount of a radical initiator in an aprotic solvent under dilute conditions.

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