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A NEW FAMILY OF PRESSURE SENSITIVE ADHESIVES [2006]

Roy M. Griswold, Sr. Chemist
Richard Eckberg, Principle Chemist
Robert Frye, Technical Marketing Engineer

GE Advanced Materials, Waterford, NY

Adhesive properties of many pressure sensitive or heat-activated adhesives are generally well suited for use with labels on a variety of substrates. However, these adhesives are not significantly solvent-resistant.

A solvent-resistant adhesive is highly desirable. Potential applications include tapes and labels for aerospace, automotive, electronics, industrial and consumer articles where exposure to aromatic and aliphatic solvents, oils and fluids occurs. A solvent-resistant adhesive would also be useful for labels used by analytical laboratories, such as environmental laboratories to prevent loss of critical sample identification information.

Our study focused on developing a new family of adhesives exhibiting solvent and chemical resistance, and this paper considers the new adhesive technology based on silane-terminated polyurethanes. Discussion will address the chemistry, chemical resistance and adhesive properties, and converting process for making tapes and labels.