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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< MODIFIED MAGNESIUM OXYSULFATE FIBROUS PARTICLES AND POLYOLEFIN COMPOSITION CONTAINING THE SAME

> Construction Element and Method for its Manufacture

> Method of solidifying and detoxifying soil (including soil contaminated with dioxins and/or heavy metals), incinerated ash (including incinerated ash contaminated with dioxins, heavy metals and the like) and coal ash (including coal ash contaminated with heavy metals and the like) and method of detoxifying polluted water containing dioxins and polluted water containing PCB
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