IHS Chemical Week

Markets :: Plastics :: PET

Wellman Serves Eastman with PET Patent Infringement Suit

8:49 AM MDT | October 30, 2007 | Chemical Week Editorial Staff

Wellman has filed a patent infringement lawsuit against Eastman Chemical charging that Eastman has violated two Wellman patents covering titanium-catalyzed polyethylene terephthalate (PET) resins and the preforms made from titanium-catalyzed PET resins. The suit alleges that Eastman’s ParaStar brand resins, which are made from the company’s IntegRex process, violates Wellman’s patent on titanium-catalyzed PET production. The suit also charges that Eastman’s customers are “induced” into infringing on Wellman’s patent...

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