Cure signaling adhesive
AssigneeW.F. Taylor Co., Inc.
InventorRobert Kintu Ddamulira
Life of this patent
Estimating the term…
Abstract
An adhesive is provided that will automatically signal that it has cured a sufficient amount for objects, such as flooring, to be installed on the adhesive. The cure-signaling adhesive can be a one component high strength adhesive composition which can signal that it has cured a sufficient amount and developed sufficient viscosity and tackiness (pressure sensitivity) for flooring or other objects to be installed on the adhesive. The adhesive can be formulated to change pH during curing and to signal sufficient curing by including a color change pH indicator in the adhesive. The adhesive can be formulated to have low or substantially no VOC emissions and can be formulated with bio-sourced ingredients.
Claims27
An adhesive composition suitable for use as a construction adhesive, comprising:
- the combination produced by combining effective amounts and proportions of a cross-linkable hydrocarbon resin, a fugitive alkali agent or fugitive antioxidant, a cross linking agent, and an acid/base color change indicator;
- wherein the combination is formulated to provide an adhesive composition that can be applied to a substrate and will have a first application hue, and cure to a shear strength of over 3 psi and have a noticeably lighter intermediate hue within 30 minutes, and which will cure on the substrate to provide an adhesive of shear strength over 40 psi and be effective as a flooring adhesive and change hue as it cures to signal that cross linking is progressing, from the intermediate hue to a lighter cured hue of the substantially cured adhesive.
An adhesive composition and color chart combination, comprising:
- the combination produced by combining effective amounts and proportions of an oil;
- a hydrocarbon resin component;
- a fugitive alkali agent or anti-oxidant;
- a cross linking agent;
- and an acid/base color change indicator, to provide an adhesive that can be applied to a substrate and which will cure on the substrate and noticeably change from a darker to a lighter hue as it develops a strength of over 3 psi within 30 minutes and cure to a shear strength of over 40 psi;
- and
- a color chart depicting at least one hue and instructions explaining to apply flooring to the adhesive while the adhesive has the depicted hue.
An adhesive composition suitable for use as a construction adhesive, comprising:
- the combination produced by combining effective amounts and proportions of a cross-linkable hydrocarbon resin;
- a fugitive alkali agent or antioxidant;
- a cross linking agent;
- wherein the combination is formulated to provide an adhesive composition that can be applied to a substrate and which will cure on the substrate and signal, as it cures that cross linking is progressing and wherein the hue of the adhesive corresponds to a color chart, which associates the hue of the adhesive with a directive to apply flooring to the adhesive while the adhesive has an indicated hue.
Dependencies are inferred from the claim text.