C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/12 (2006.01) C08G 18/32 (2006.01) C08G 18/38 (2006.01) C08G 18/78 (2006.01) C08G 18/79 (2006.01) C09D 175/02 (2006.01)
Patent
CA 2153451
The present invention relates to a coating composition which is free from polyols and contains a) a polyisocyanate component, b) an aldimine based on the reaction product of a polyamine having 2 or more primary amino groups with an aldehyde and c) a compound containing aspartate groups, wherein components a), b) and c) are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to aldimine groups and aspartate groups of 0.5:1 to 20:1 and wherein component c) is present in an amount sufficient to form a dear solution within 60 minutes of mixing components a), b) and c), provided that the amount of component c) is at least 5% by weight, based on the weight of components b) and c). The present invention also relates to a polyurea coating . prepared from this coating composition.
Hicks Sharon D.
Mcclurg David C.
Squiller Edward P.
Wade Robert A.
Wayt Terrell D.
Corporation Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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