Thursday, August 2, 2007 - 8:30 AM
S156

Bacterial polysaccharides as components of adhesives

Gill Geesey, Microbiology, Montana State University, 109 Lewis Hall, Bozeman, MT 59717-3520

A bacterial polysaccharide-based adhesive produced through a fermentation reaction using renewable feedstock has been developed, tested and demonstrated as a useful substitute for synthetic chemical-based adhesives for bonding components of indoor wood cabinetry.  The bio-based adhesive contains no petroleum-based or synthetic chemicals.  The adhesive is easy to apply to wood surfaces, exhibits a desirable cure time and leaves a clear bond line upon curing.  Different formulations can be prepared using different size fractions of the polysaccharide to yield different properties.  One formulation possesses properties that are desirable for mounting and archiving fine works of art.  The formulation contains no acidic components that typically promote degradation of paper and textile products with which the artwork comes in contact. The examples cited above highlight the potential use of bacterial polysaccharides as a substitute for synthetic polymers in the formulation of various adhesives.

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