Article: Patent No. 7,531,607 Issued on May 12, Assigned to Borealis Technology Oy for Olefin Polymers Producing Process (Finnish Inventor)

ALEXANDRIA, Va., Aug. 4 -- Torvald Vestberg, Porvoo, Finland, has developed a process for producing olefin polymers. The inventor was issued U.S. Patent No. 7,531,607 on May 12.

The patent has been assigned to Borealis Technology Oy, Porvoo.

According to the abstract released by the U.S. Patent & Trademark Office: "A process for producing at least two different propylene polymer grades, in which process the isotacticity of the polymer is changed while keeping the melt flow rate of the polymer at a predetermined level during a transition of production from a first polymer grade ...

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