Thickens high-stress zones like the heel and shoulder to withstand top loads without increasing overall bottle weight.
A gas-assisted base blow off system introduces pressurized air through mold orifices to cool polymer bottle bases before evacuation.
Arcuate pillar sections configure an imaginary perfect circle to resolve the contradiction between decompression absorption and exterior shape integrity.
Interlocking modular containers convert waste plastic bottles into durable building blocks, reducing landfill pollution and promoting sustainable recycling.
Low filler aluminium and absorbent additives in PET achieve total light protection without delamination or high manufacturing costs.
Segmenting polymer chains into two fractions with distinct comonomer contents maintains gloss and transparency after sterilization.
A downward-protruding curved portion in the movable wall ensures even rotational movement across the entire circumference of pressure reduction-absorbing bottles.
A PET copolymer composition with controlled diethylene glycol and naphthalenedicarboxylic acid levels enables heat-set stretch blow molding for dimensional stability.
A mold forms a flexible standing ring on plastic containers to absorb internal vacuum forces and maintain structural shape.
Annular groove on bottle body contains molten resin during spin welding, preventing escape that degrades appearance and hermetic sealing.
Offset circumferential grooves increase radial rigidity while preventing buckling strength reduction.