Flex Films gets US patent for its BOPET film used for alu-alu blister pack

This patent has a uniqueness of forming characteristic of BOPET film in Z direction during packaging application.

With this innovation in pharma packaging and particularly for alu-alu blister laminate structure, BOPET film has completely replaced the carcinogenic PVC. When PVC is recycled or reprocessed, it releases poisonous gases like dioxin and hydrochloric acid which are hazardous for human health. Also when PVC comes in direct contact with sunlight, it gives away chlorine gas, 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 aluminium 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 and BOPA is that they can be easily printed with many different types of inks. Even today, it is difficult to read the details of drugs printed on aluminium 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.

Pramod Sirsamkar, president, technical & new product development (films), Uflex, 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 invent our now patented special polyester film that since its launch last 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.”

Anantshree Chaturvedi, vice-chairman and CEO, Flex Films 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.”