Coating and sealing compositions

Details Coating and sealing compositions Coating and sealing compositions

C - Chemistry, Metallurgy

08

G

117/195, 402/34,

C08G 18/06 (2006.01) C08G 18/10 (2006.01) C08G 69/44 (2006.01) C08G 69/48 (2006.01) C08K 5/16 (2006.01) C08L 75/04 (2006.01) C08L 77/00 (2006.01)

Patent

CA 1095641

ABSTRACT OF THE DISCLOSURE A sealing or coating composition comprises (I) an addition product obtainable by the reaction of (i) a polyol component comprising a linear or branched polyalkylene oxide having terminal hydroxyl groups and/or a polyester-polyol, and (ii) an excess amount of a di- or poly-isocyanate having aliphatic and/or cycloaliphatic isocyanate groups, and (II) a di- and/or poly-functional enamine obtainable by the reaction of (a) a polyamino amide obtainable by the condensation of (i) a di- and/or poly-carboxylic acid having from 6 to 72 carbon atoms, and (ii) an excess amount of a secondary diamine, and (b) an aliphatic aldehyde or cyclic ketone The composition remains soft for prolonged periods of time in the absence of moisture but hardens in the presence of moisture.

252550

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