Semi-solid water-based coating compositions

Details Semi-solid water-based coating compositions Semi-solid water-based coating compositions

C - Chemistry, Metallurgy

09

D

400/1302, 400/70

C09D 5/04 (2006.01)

Patent

CA 1147485

SEMI-SOLID WATER-BASED COATING COMPOSITIONS ABSTRACT OF THE DISCLOSURE This invention relates to coating compositions which are "solid" prior to application, yet, which when applied to a substrate, flow and level in a manner similar to conventional coating compositions. The coating compositions of the invention comprise a gelled coating composition, capable of application and flow on a solid substrate comprising: (a) a water reducible polymer, (b) water, (c) an electrolyte, and (d) a colloidal gelling agent, gelable by interaction with the electrolyte, in an amount sufficient, when interacted with said electrolyte, to gel the composition to form a stable semisolid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force at a relatively small shearing rate; which gelled coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent con- tributed gel structure.

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