Polyurea/Polyurethane Coatings TRIZ Cases

A radiation polymerizable composition comprising a urethane oligomer and maleimide compound accelerates photopolymerization kinetics.

A two-component curable coating agent forms a protective layer using an acrylic polyol with an alicyclic structure.

Segmenting the dispersion into high and low molar mass polyurethanes resolves adhesion trade-offs while maintaining mechanical resistance.

High molecular weight crosslinking agents lower crosslink density to achieve 0.6 to 2 MPa initial elastic modulus for actuator applications.

Phosphorus-containing acidic compounds and sterically hindered phenols stabilize polyisocyanates against color drift when mixed with urethanization catalysts.

Replacing acetone with methyl acetate during hydrazine chain extension reduces residual hydrazine content while maintaining thermal yellowing stability.

Mixer system uses seed-core-shell polymers and aliphatic monoalcohols to reduce flash-off times while preventing blistering in automotive refinish coatings.

Replacing volatile tertiary amines with alkaline metal hydroxides eliminates toxic emissions while maintaining film stability and chemical resistance.

TACD-based polyester polyols lower glass transition temperature to enhance scratch resistance in two-component polyurethane clearcoats.

Calcium metal reacts with water in the coating to generate heat, enabling rapid cure-through and eliminating rain washout risks.

Isocyanato-trialkoxysilane adducts in aliphatic polyisocyanate coatings boost scratch resistance without increasing viscosity or reducing solids content.

Water-based coating composition prevents sagging under varying environmental conditions through a two-component curing system.

Epoxy-group terminated polyoxazolidinone composition cures into flexible adhesive and coating layers.