Sika

Last updated February 10, 2026

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Low monomeric diisocyanate polyurethane formulations: SikaRecent Research Landscape

Residual monomeric isocyanates pose significant health risks and regulatory hurdles in polyurethane production. Engineering the polymer backbone with linear isocyanate-functionalized chains and polymeric plasticizers reduces free monomer content while maintaining material flexibility.

What technical problems is Sika addressing in Low monomeric diisocyanate polyurethane formulations?

Residual monomer toxicity

(13)evidences

Unreacted diisocyanate monomers pose significant respiratory and dermal health hazards. Eliminating these hazardous residues ensures regulatory compliance and user safety without compromising polymer performance.

Inadequate moisture resistance and adhesion

(12)evidences

Initial bonding strength before full moisture cure is inadequate for immediate handling. Improving this prevents substrate shifting and reduces assembly cycle times.

Monomeric diisocyanate respiratory toxicity

(7)evidences

High levels of unreacted diisocyanates pose significant respiratory and skin sensitization risks. Reducing these monomers through chemical stabilization or sequestration ensures regulatory compliance and user safety.