Thixotropic polyurea compositions

Details Thixotropic polyurea compositions Thixotropic polyurea compositions

C - Chemistry, Metallurgy

08

G

C08G 18/65 (2006.01) C08G 18/50 (2006.01) C08G 18/66 (2006.01) C09J 175/02 (2006.01)

Patent

CA 2163402

Disclosed herein are polyurea compositions comprising the reaction product of: (a) a polyphenyl polymethylene polyiso- cyanate or a urea-modified prepolymer thereof and (b) a mixture of amines comprising (i) aminocrotonate polyether, and (ii) a low molecular weight aromatic or cycloaliphatic diamine or mixture thereof. By selecting appropriate blends of aminocrotonate polyethers and low molecular weight polyamines, it is now possible to design all-urea formulations with non-sagging performance.

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