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EnvalyxPrecision upcycling

Applications

Feedstock-specific development areas for polyamides, polyurethane, multilayer films, and tire rubber.

Focus areas

Priority material streams

Partner-specific pathways, scoped around material composition, target outputs, and the next technical decision.

Program inputs

  • Material format
  • Additives and contaminants
  • Volume range
  • Location and timeline

Schematics are conceptual; candidate outputs and evidence criteria are set with each partner.

Polyamides: PA-6 and PA-66

Feedstock
Automotive parts, e-mobility housings, and industrial textiles.
Constraint
Glass fiber and crystallinity can limit high-value recovery.
Approach
Assess PA-6 and PA-66 separately against chemistry-specific recovery targets.

Candidate outputs

  • PA-6: 6-aminocaproic acid and oligomer fractions
  • PA-66: adipic acid and HMDA-containing fractions
Discuss PA-66 feedstock
PA-66 polymer structure showing adipic acid and HMDA units with amide bond cleavage by amidase enzymes

Polyurethane foams

Feedstock
Mattresses, appliance insulation, and flexible-foam scrap.
Constraint
Incineration and landfill remain common; thermal processing can reduce polyol quality.
Approach
Screen candidate systems against ester and urethane linkages, then assess product identity and conversion.

Candidate outputs

  • Polyol-containing fractions
  • Amine-containing fractions
Discuss polyurethane feedstock
Polyurethane foam cellular structure showing urethane bond chemistry and candidate enzymatic pathways toward polyol- and amine-containing fractions

Multilayer films & complex packaging

Feedstock
Barrier films and laminates containing PA, EVOH, PET, and PE.
Constraint
Incompatible layers and adhesives limit mechanical recycling.
Approach
Evaluate sequential enzyme and separation steps against the known layer structure.

Candidate outputs

  • PA-derived monomer or oligomer fractions
  • PET-derived TPA- and EG-containing fractions
  • EVOH- and PE-rich fractions for partner evaluation
Discuss multilayer separation
Cross-section of multilayer barrier film showing PE, PA, EVOH, and PET layers with potential target fractions per layer

Tire rubber & elastomers

Feedstock
End-of-life tire crumb and NR/SBR/BR-rich industrial scrap.
Constraint
Crosslinks, fillers, oils, and reinforcement hinder direct reuse.
Approach
Evaluate surface opening, oxidative attack, and fragment cleanup alongside infrastructure fit.

Candidate outputs

  • Oxidized isoprene oligomers and carbonylated fragments
  • Additive- and filler-associated fractions
  • Integration data for partner recovery workflows
Discuss tire feedstock
Tire crumb pathway showing NR, SBR, BR rubber, sulfur crosslinks, carbon black, oxidative polyisoprene attack, and fragment cleanup screening