C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
402/133, 260/236
C08K 5/00 (2006.01) C08G 18/38 (2006.01) C08G 18/50 (2006.01) C08L 75/04 (2006.01) C09B 1/54 (2006.01) D06P 3/24 (2006.01)
Patent
CA 1309092
ABSTRACT A process for coloring polyurethane resins made by a polyaddition reaction of a polyol and an isocyanate is provided, which comprises adding to the reaction mixture before or during the polyaddition reaction a reactive coloring agent suitable for incorporation in the resin with the formation of covalent bonds, said coloring agent having the formula: Image in which R1 and R2 are independently selected from an alkyl group having from 1 to about 12 carbon atoms, X is --CH2--, a and a' are integers from 1 to about 6, and Y and Y' are independently selected from polymeric units of hydroxy alkylenes or alkylene oxide monomers selected from ethylene oxide, propylene oxide, butylene oxide, cyclohexene oxide, or glycidol, b and b' are independently either 0 or 1, and Z and Z' are reactive groups independently selected from -OH, -NH2, or -SH.
597973
Miley John Wulbern
Rekers John William
Gowling Lafleur Henderson Llp
Milliken Research Corporation
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