C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
117/163, 261/56.
C04B 24/30 (2006.01) C04B 41/63 (2006.01) C04B 41/65 (2006.01) C08K 5/17 (2006.01) C09D 133/06 (2006.01) C08L 63/00 (2006.01)
Patent
CA 2031404
ABSTRACT OF THE DISCLOSURE A coating composition is used for coating or overlaying Portland cement concrete or metal. The composition includes a synthetic polymer latex having ureido functional groups, an amine-functional epoxy curing agent, a liquid epoxy resin, and a hydraulic cement. The coating composition has superior thermal shock resistance and low cost in comparison with epoxy/amine-type polymer concrete, and excellent strength development and chemical resistance in comparison with conventional latex-based cementitious compositions. The coating composition can be mixed from a pair of storage-stable components; a dry mix including the hydraulic cement and the epoxy resin, and optionally larger size aggregate, and a wet mix including the polymer latex and the amine curing agent. The two components can be mixed on site to give a fluid coating composition having a good pot life and low viscosity, which rapidly develops strength, and ultimately devel- ops high compressive stength, thermal shock resistance, and resistance to chemical attack, especially attack by aqueous acids.
Bredow Charles W.
Schindler Frederick J.
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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