Color changing caulk
AssigneeRed Devil, Inc.
InventorsLarry G. Brandon, Michael Gabel, Curtis True, Lori S. Gonzales
Life of this patent
Estimating the term…
Abstract
A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment.
Claims18
A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment, wherein said caulk composition remains flexible after it is fully cured such that it is suitable for use as a sealant, and wherein said composition comprises a pH indicator which changes color in response to sufficient curing of said composition, said change in color appearing complete when said skin has a thickness of about 1mm to about 2mm thus indicating the degree of cure permits application of a surface treatment to said composition.
A caulk composition comprising an aqueous-based polymer emulsion and a pH indicator wherein prior to use said composition is packaged under an inert environment and wherein said caulk composition remains flexible after it is fully cured such that it is suitable for use as a sealant.
A method of making a caulk composition, comprising the steps of:
- blending together a base polymer, a preservative, a thickener and a surfactant to form a base emulsion;
- adding a pH indicator to said base emulsion;
- adding at least one filler or pigment selected from a group including calcium carbonate, titanium dioxide, kaolin clays, talc, mica, and silica to said base emulsion;
- adding a pH modifier to said base emulsion to result in a final composition having a first color, and
- packaging said final composition under an inert blanket environment such that upon use said final composition retains said first color until it is at least partially cured to form a skin and wherein the final composition results in a caulk, which remains flexible after it is fully cured such that it is suitable for use as a sealant.
Dependencies are inferred from the claim text.