Single-Layer Tank Liner Composition for Gas Barrier and Impact Resistance

The patent uses a composite resin composition combining polyethylene (for weight reduction and impact resistance) with polyamide (for gas barrier property). This composite material integrates the advantages of both resins, achieving both weight lightening and excellent gas barrier performance simultaneously.

The patent creates a composite resin system where polyamide provides the gas barrier function and polyethylene provides the impact resistance. The synergistic combination allows the liner to achieve both superior gas barrier properties and excellent impact resistance that neither resin could provide alone.

The patent merges multiple resin types (polyethylene and polyamide) into a single homogeneous composite resin composition that can be processed using simple single-layer blow molding. This eliminates the need for complex multi-layer laminated structures while maintaining the benefits of both resins through molecular-level mixing rather than physical layering.

The patent combines polyethylene and polyamide into a single composite resin composition that can be molded in one step using conventional single-layer blow molding equipment. This eliminates the need for multiple molding steps, layer alignment, and joining processes required by laminated structures, significantly reducing manufacturing complexity and cost.