Polyisocyanate composition

Details Polyisocyanate composition Polyisocyanate composition

C - Chemistry, Metallurgy

08

G

400/111

C08G 18/02 (2006.01) C08G 18/70 (2006.01) C08G 18/79 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2037378

A stable polyisocyanate composition containing from 3% to 30% by weight of trimerized isocyanate, from 25% to 55% by weight of diisocyanates, the remainder being higher functionality polyisocyanates, said composition having a Brookfield viscosity of 150 to 100000 cPs at 25°C, an average isocyanate functionality of 2.4 to 3.0, an NCO group content of 26% to 31%, and having an infrared absorption peak at 1410 cm-1, whereas the ratio of the height of said absorption peak at 1410 cm-1 to the height of the infrared absorption peak at 1610 cm-1 is of at least 0.8.

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