C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/04 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/28 (2006.01) C08G 18/32 (2006.01) C08G 18/67 (2006.01) C09D 175/02 (2006.01)
Patent
CA 2174196
The present invention relates to aqueous polyurea dispersions wherein the polyureas contain 0.1 to 25% by weight, based on the weight of the polyureas, of en-urea groups (calculated as -NH-C(O)-N-, MW 57) obtained by the reaction of an isocyanate group with an aldimine group prepared from a cyclic polyamine containing (cyclo)aliphatically bound amino groups. The present invention also relates to a process for preparing these aqueous polyurea dispersions and to their use for preparing coatings.
Jacobs Patricia B.
Yonek Kenneth P.
Corporation Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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