A special PET additive suitable for hot fill container
Our patent : «Process for the production of PET and rPET containers with high barrier and crystallinity with standard single-stage injection-stretch-blow molding technology»
Application number: 102021000022292
Application filed on: 25/08/2021
FASTPET is a special masterbatch formulated and patented by GS4PLASTIC, which manages to increase the crystallinity of PET without compromising its processability and leading to a considerable increase in thermal, mechanical and oxygen barrier properties.
The bottles made with FASTPET are 100% recyclable in the existing PET supply chain. Furthermore, FASTPET is also suitable for use with post-consumer rPET.
It is possible to use FASTPET for the production of bottles only in single stage stretch blow molding (ISBM) for HOTFILL application without the need to use special hot mold technologies.
The recommended dosage is between 0.2% and 0.5%.
Thanks to FASTPET it is possible to make the container resist up to 85 ° C, thus making it suitable for the HOTFILL process without the use of special PETs and expensive technologies.
With FASTPET it is possible to increase the barrier properties, and consequently the shelf life of the products up to 12 months.
PLASMA TREATMENT OF THERMOPLASTIC POWDERS
Our patent : «Multilayer containers in extrusion blow molding with low environmental impact through the use of vacuum plasma treated PE / PP »
Application number: 102021000027791
Application filed on: 29/10/2021
The innovative system of vacuum plasma technology allows the surface chemical modification of polymer powders of PE or other materials, and it simplifies and ensures better performance, without degrading the polymer and changing the following key characteristics:
• The molecular weight and the fluidity
• The melting temperature
• The crystallinity percentage
• The mechanical properties
• The impact resistance
The plasma process changes the polarity and interfacial tension of the polymer, that facilitates many processes of mixing, adhesion, welding and painting between polymers and pigments, between plastics and metals, and/or between polymers of different chemical nature.
THESE PROPERTIES OF HYDROPHILICITY AND INCREASED WETTABILITY OF PE LAST FOR MORE THAN 6 MONTHS.
THE MAIN ADVANTAGE IS THE INCREASE IN ADHESION BETWEEN HDPE AND EVOH WITHOUT USING ANY TIE LAYERS
APPLICATION: MULTILAYER HDPE BOTTLES