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.
Claims21
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 and wherein said caulk composition remains flexible after it is fully cured wherein said composition comprises a pH indicator which changes color in response to sufficient curing of said composition whereby the degree of cure permits application of a surface treatment to said composition and wherein the pH of said composition having said first color is from about 8 to about 10.
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 has a first color and a pH of from about 8 to about 10 and wherein during use said caulk composition undergoes curing such that it has a second color and a pH of below about 8 and wherein said caulk composition remains flexible after it is fully cured.
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;
- and
- adding a pH modifier to said base emulsion, such that the resulting final composition has a first color and a pH of about 8 to 10;
- 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.
Dependencies are inferred from the claim text.