A breakthrough naturally-derived formulation that delivers high oxygen barrier performance, flexible-packaging-grade elongation, and drop-in processability — without inorganic nanofillers, without proprietary equipment, without compromise.
Targeting the $30B+ global barrier film market — biodegradable films growing 15%+ annually
Sixteen months. More than 25 formulations. A systematic search across naturally-derived polymer and plasticizer combinations. Most approaches delivered either barrier performance or flexibility, but not both at commercial-grade levels.
The breakthrough came from an unexpected synergy between specific bio-based components. The result: exceptional elongation performance far exceeding individual contributions. The reproducibility across independent prototypes confirms the commercial viability.
An 8–20 μm EcoSphere oxygen barrier solution-cast onto a compostable biopolymer substrate. Designed for premium coffee with target shelf life of 18 months.
First prototype: OTR 0.038 cc/m²·day·atm, EAB 287%. Within commercial coffee specification.
EcoSphere sandwiched between two compostable biopolymer substrate layers. Dual oxygen and moisture barrier. Designed for jerky and cured meat applications requiring 10–20% shrink at 65–75°C.
First prototype: 16% shrink, WVTR 3.2 g/m²/day. Within commercial jerky specification.
OTR per ASTM D3985 (MOCON OX-TRAN). Tensile per ASTM D638. WVTR per E96/E96M. Compostability per D6868 — 78% biodegradation in 90 days, exceeding the 60% pass threshold.
Third-party engineering analysis confirmed exceptional barrier performance significantly exceeding other naturally-derived approaches reported in literature. Achieved without inorganic nanofillers — simpler formulation, simpler compostability certification.
November 2024. NantBioRenewables. Commercial slot-die coating equipment compatible with VFFS and HFFS converter lines. Compostable biopolymer substrates. Line speeds up to 200 m/min. ±3% thickness uniformity. Post-pilot films retained excellent elongation performance. The chemistry holds at scale.
EcoSphere's lifecycle carbon footprint is approximately 1.3 kgCO₂e/kg — a substantial reduction compared to conventional petroleum-based barrier materials without sacrificing the performance brand owners need.
78% biodegradation in 90 days per ASTM D6868, exceeding the 60% pass threshold. Complete breakdown in home and industrial compost systems.
Compostability certifications under TÜV AUSTRIA OK Compost, BPI Compostable, and EU EN 13432 are in process.
Pullulan, gelatin, glycerol. No fossil-fuel polymers. No inorganic nanofillers. No surprises.
The EcoSphere formulation is wholly owned by Kinvexco. US Patent Application No. 63/850,400 was filed July 2025, covering the naturally-derived composition, bilayer and trilayer architectures, and manufacturing method. PCT conversion deadline: July 2026.
The technology was developed under contract. No upstream license obligations. No government march-in claims. Patent counsel: Matthew A. Pequignot (Reg. 43851).
The defensive moat compounds beyond the patent. Sixteen months of formulation development have produced specific drying conditions, lamination protocols, and converter-integration recipes — knowledge advantages that are faster to replicate than to invent.