Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Patricia Metzger Cotts0
Stephen Ernest Jacobson0
Date of Patent
August 25, 2009
0Patent Application Number
113976670
Date Filed
April 4, 2006
0Patent Primary Examiner
Patent abstract
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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