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EnvalyxPrecision upcycling

02Formulation-led assessment

Polyurethane foams

Mattresses, appliance insulation, and flexible-foam scrap.

Discuss polyurethane feedstock
Rigid and open-cell polyurethane foam samples

Access constraints

What governs whether the target is reachable in this feedstock.

  • Crosslink density
  • Additives
  • Foam architecture

Reaction scheme

Formulation-led bond-access screen.

Ester, ether, urethane, and urea linkages distinguished because formulation determines the valid evaluation target; the screen reports an identified soluble fraction against a weighed residual solid, with no bulk carbamate cleavage claimed.

01Selected formulation-dependent linkages

OOesterpolyester segmentOetherpolyether segmentORNHORurethaneevidence requiredORNHNHRureawater-blown foams
Bond-access screenFormulation-dependent

02Screen output

soluble fraction · analytical profileresidual solid · mass balancedno bulk carbamate cleavage claimed

In MDI/TDI foams the N-side R is aromatic; the O-side R derives from the polyol. Reported urethanase activity is on carbamates after glycolysis, not intact foam.

Supported endpoint

Formulation response

Next step

Bring this material to a defined question

Tell us which decision the evaluation needs to support.

Discuss polyurethane feedstockDiscuss technical scope