US Patent Granted to Flex Films for Break through BOPET Film Used for Alu Alu Blister Pack

December , 2018, Elizabethtown, Kentucky (USA):FlexFilms, the global film manufacturing arm of Uflex, has been grantedUnited States Patent covering entirecategories of Formable Films that include one or more BOPET layers used in AluAlu blister packaging. The patent US 10131122 was issued to Flex Films (USA) Incon November 20, 2018 for a period of 20 years, lending a competitive advantage to the Films Business of the company over its opponents in cold formed pharmaceutical packaging industry. With the patent issuance, the company getsexclusive right ofmanufacturing&saleof this special BOPET film in US, Europe and India.

US Patent Granted to Flex Films for Break through BOPET Film Used for Alu Alu Blister Pack

This patent has a uniqueness of formingcharacteristic of BOPETfilm in Z direction during packaging application.


With this innovation in pharma packaging and particularly for Alu-Alu blister laminatestructure, BOPET film has completely replaced the carcinogenic PVC. When PVC is recycled orreprocessed, it releases poisonous gases like Dioxin & Hydrochloric acid which are hazardous for human health. Also when PVC comes in direct contact with sunlight,it gives away Chlorinegas. Whereas the special polyester film can be recycled and reprocessed and is 100% environment friendly. Likewise, this BOPET film has also replaced 25 microns BOPA film, the processing of which is difficult due to its intrinsic property of moisture absorption that makes it de-laminate from aluminum foil.


The BOPET film, developed by Uflex’s Film Business and patented by Flex Films USA,delivers a huge saving on carbon foot prints and energy. Another added advantage that this BOPET Films has over PVC & BOPA is thatthey can be easily printed with many different types of inks. Even today, it is difficult to read the details of drugs printed on Aluminum foil of blister packs,but with the compatibility feature of BOPET film with the different types of inks used in printing, communication of drugs on blister packs has become readable now. Our BOPET film has even opened up many avenues to evade the menace of anti-counterfeiting.


PramodSirsamkar, President – Technical & New Product Development (Films), Uflex Ltd who along with the R&D team invented the film stated,“We are pleased to strengthen our intellectual property protection with the addition of this patent. Our R&D team had consistently worked to inventour now patentedspecial polyester film that since its launchlast year has changed the landscape of medical packaging reducing the dependency on BOPA and PVC films use in Alu- Alu laminate blister pack. This patent undoubtedly would be a game changer for our business and will prove to be an asset not only for us but also for the pharmaceutical industry.”


Pleased at the grant of the patent, Anantshree Chaturvedi, Vice Chairman and CEO, FlexFilms International said, “We have believed that healthy competition always benefits customers the most. The patent awarded to us gives us the right to protect our innovation and stop others from copying, reverse-engineering or selling our product without our permission, thereby reducing our risks and ensuring best product delivered to our customers. This silver bullet now gives us protection for a pre-determined period, allowing us to keep competitors at bay and lead the path as always.”


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