C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/00 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/34 (2006.01) C08G 18/36 (2006.01) C09D 175/00 (2006.01)
Patent
CA 2130603
Water dispersible, one component, self crosslinkable poly(urethane-urea) composition that is stable and capable of curing at room temperature is prepared by forming a prepolymer comprising an alcoholized drying oil; a diisocyanate, a polyalkylene ether polyol, and a dihydroxy containing alkanoic acid polyol; neutralizing the prepolymer; contacting the neutralized prepolymer with water and diamine wherein the alcoholized drying oil has a sufficient content of monoglycerides to allow for chain extension in step (C) and the poly(urethane-urea) self-crosslinks upon drying. The waterborne poly(urethane-urea) composition exhibits good chemical resistance, adhesion, abrasion, and high gloss properties when used as a coating.
Gowling Lafleur Henderson Llp
The Sherwin-Williams Company
LandOfFree
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