The BKG Underwater Palletizing Systems Division of Kreyenborg Industries has acquired international patent rights from Eastman Chemical Co. for processing sticky or tacky polymers using underwater pelletizers.
Those types of polymers tend to stick together just after being cut, or during storage.
The patented process is covered under U.S. patent No. 5,041,251. The process eliminates normal surface tack by applying a compatible, non-sticky material during the water-cooling period. Then, after the pellets are separated from the cooling fluid, they get coated a second time. The result is the processor can use a higher-temperature cooling fluid and store pellets at higher temperatures, saving money and delivering higher-quality pellets, said BKG Kreyenborg of Norcross, Ga.
BKG Kreyenborg is sub-licensing the patent to any processor that will use its machines, or for royalty payments if the process is used with other equipment.
The worldwide patent rights were transferred to BKG/Kreyenborg in December 2000, and the company announced the news earlier this year.
Tel. (770) 849-0220, fax (770) 849-9443.