C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) B05D 1/00 (2006.01) C08G 18/32 (2006.01) C08J 3/02 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2510210
An aqueous polyurethane dispersion (PUD) that includes an isocyanate functional prepolymer containing acid functional groups prepared by reacting a polyol containing carboxylic acid functionality and a polyisocyanate. The polyol has a molecular weight (Mn) of from 100 to 10,000, an acid number of 25 to 500 mg KOH/g and a hydroxyl number of from 25 to 500 mg KOH/g. The PUD can be used in coating compositions that also contain a cross-linking agent. The coating compositions can be used coat substrates by applying a mixture of the PUD and cross-linking agent to a surface of the substrates.
Gindin Lyubov K.
Konitsney Ronald M.
Mclafferty John J.
Roesler Richard R.
Bayer Materialscience Llc
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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