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AssigneeHenkel AG & Co. KGaA
InventorsRobert W. Rowitsch, Jeffrey Cash, Michael Maue, Daniel J. Lovullo, Brian J. Stachowski, Michael Kasprzak, Richard W. Johnston
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Water-based adhesive compositions are improved by the incorporation of hollow polymeric microspheres having outer surfaces coated with one or more barrier materials such as calcium carbonate particles. The adhesive compositions exhibit enhanced rheology, sprayability, drying time, tack and storage stability as compared to analogous adhesives that are not modified with coated hollow polymeric microspheres. Such compositions are useful as both contact adhesives as well as wet bonding one-way adhesives.
An assembly comprising at least a first substrate and a second substrate, wherein said first substrate and said second substrate are joined by an adhesive layer obtained from a water- based adhesive composition comprising:
An adhesive application system comprising a) a water-based adhesive comprising i) an aqueous emulsion of at least one elastomeric adhesive polymer and ii) hollow polymeric microspheres having outer surfaces coated with at least one barrier material, b) a propellant, c) a pressure container for containing said water-based adhesive and said propellant under pressure, and d) a valve system capable of regulating the flow of said water-based adhesive and said propellant out of said pressure container.
A water-based adhesive comprising water and:
A water-based adhesive comprising water and:
A water-based adhesive comprising water and:
Dependencies are inferred from the claim text.