W. R. Grace Co.-conn.

Eugene E Carney

Richard W Bush

Felek Jachimowicz

Srinivas K Mirle

Timothy G Grasel

Shao-Hai Wu

Tsutomu Takeuchi

A water-based bonding agent material made of an acrylic polymer or copolymer emulsion, metal salt complexed with an amine and surfactant is useful for unitizing packages having synthetic polymer surfaces.

Composition for utilizing synthetic polymer packages

Copolymers of styrene and sodium styrene sulfonate can be combined with a plasticizer to make a non-PVC plastisol sealant for containers.

Styrene sodium styrene sulfonate copolymer for plastisol sealant

An adhesive composition for adhering two substrates includes a mixture of acrylate and epoxy with a tri- or tetrafunctional ketimine as a curing agent. The adhesive composition provides a two-stage cure in which, in a first stage, the adhesive is moisture cured at ambient temperature to provide green strength. In a second stage, the adhesive is post-cured at elevated temperatures to provide a high strength bond. The ketimine is formed form the reaction of diisopropyl ketone and an amine.

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Sykesville, MD, United States of America

Eugene E Carney