High performance aqueous coating compositions
AssigneeValspar Sourcing, Inc.
InventorsT. Howard Killilea, Michael C. Wildman, Bruce A. Johnson, Carl H. Weber
Life of this patent
Estimating the term…
Abstract
This invention relates to coating compositions that include water; a latex polymer and a silane coupling agent. The latex polymer preferably comprises acetoacetoxy functionality, or is a multistage latex, or is an acetoacetoxy functional multistage latex. The silane coupling agent is preferably a functionalized silane coupling agent (more preferably an epoxy-functional silane coupling agent). The compositions may be used to coat a variety of substrates, including wood, cement and fiber cement. Articles having the coating applied thereto are also provided.
Claims15
A coated substrate, comprising:
- a cementitious substrate having at least one major surface;
- and
- a coating composition applied to the major surface, the coating composition comprising a mixture of water, a multistage latex polymer, and a silane coupling agent that provides improved resistance to delamination from the substrate when a hardened coating made from the composition is exposed for one hour at 60° C. to 1,034 kPa pressure from an automotive tire tread section heated to 60° C.
A coated substrate, comprising:
- a cementitious substrate having at least one major surface;
- and
- a coating composition applied to the major surface, the coating composition comprising a mixture of water, a latex polymer having acetoacetoxy functionality, and an epoxy-functional silane coupling agent that provides improved resistance to delamination from the substrate when a hardened coating made from the composition is exposed for one hour at 60° C. to 1,034 kPa pressure from an automotive tire tread section heated to 60° C.
A method for preparing a coated substrate comprising
- providing a cementitious substrate;
- coating at least a portion of the substrate with a coating composition comprising water, a multistage latex polymer, and a silane coupling agent;
- and
- allowing the coating to harden
- wherein the silane coupling agent provides improved resistance to delamination from the substrate when the hardened coating is exposed for one hour at 60° C. to 1,034 kPa pressure from an automotive tire tread section heated to 60° C.
A method for preparing a coated substrate comprising
- providing a cementitious substrate;
- coating at least a portion of the substrate with a coating composition comprising water, a latex polymer having acetoacetoxy functionality, and an epoxy-functional silane coupling agent;
- and
- allowing the coating to harden
- wherein the silane coupling agent provides improved resistance to delamination from the substrate when the hardened coating is exposed for one hour at 60° C. to 1,034 kPa pressure from an automotive tire tread section heated to 60° C.
Dependencies are inferred from the claim text.