C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 7/12 (2006.01) C09D 109/08 (2006.01) C09D 157/00 (2006.01) C09J 11/08 (2006.01) C09J 157/00 (2006.01)
Patent
CA 2160219
An improved latex composition is provided that has been found to exhibit a superior ability to form a substantially uniform polymeric film when applied to a substrate. The composition is capable of being handled and applied to a substrate in the absence of excessive foaming. The aqueous composition includes as essential components specified concentrations of a specifically-defined normally liquid predominantly hydrophobic nonionic ethylene oxide/propylene oxide block copolymer surfactant, and a solely hydrophobic defoaming agent (e.g., a hydrocarbon-based mineral oil). It is possible for the composition to be applied even to a hydrophobic substrate (e.g., a polyester film substrate). Compositions of the present invention, following application to a substrate and the volatilization of the water component, form a substantially uniform polymeric film that can serve as a coating or adhesive.
Anchor Michael J.
Drewno Gregory W.
Hollis Rebecca P.
Anchor Michael J.
Basf Corporation
Drewno Gregory W.
Hollis Rebecca P.
Robic
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