Flexible polyurea or polyurea-polyurethane foams prepared...

Details Flexible polyurea or polyurea-polyurethane foams prepared... Flexible polyurea or polyurea-polyurethane foams prepared...

C - Chemistry, Metallurgy

08

G

400/110, 403/34,

C08G 18/50 (2006.01) C08G 18/32 (2006.01) C08G 18/66 (2006.01) C08J 9/12 (2006.01)

Patent

CA 1334545

Flexible polyurethane foams are prepared by reacting a polyisocyanate with certain amine-terminated compounds. The amine terminated compounds are charac- terized in having at least 30 percent of their active hydrogen-containing groups in the form of primary aromatic, Lewis acid-blocked primary aliphatic and/or secondary aromatic or aliphatic amine groups. The resulting foams exhibit excellent physical properties, even in the absence of a cross-linker compound.

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