MANHATTAN, Kan. -- Kansas State University researchers have patented the first plant-based resin of its kind that would be ideal for re-adherable painters' tape, labels, packing tapes, stationery notes and other adhesive uses. It also can provide shiny coatings.
"Painters generally finish projects with mounds of used tape made of low-quality paper that does not recycle," said Susan Sun, university distinguished professor of grain science and industry and lead researcher on the project. "If they could use biodegradable tape, like ours, it would greatly reduce the amount of waste."
In addition to adhesive applications, the resin could be used in coatings on wooden surfaces, slick magazine pages, bags of potato chips and other items needing shiny and protective surfaces that are either flexible or rigid.
Sun said the resin outperforms previous bio-based adhesives because it adheres to a surface for a longer period of time, has a longer shelf life and is more water-resistant. Because the substance is plant-based, its resources are biodegradable and renewable.
"Our resin is unique because it is made from soybean, corn and other plant oils," Sun said. "Currently available resins are made from petroleum-based products, which are less sustainable, and from plant fatty acids, which cost more to process."
The research has been featured in several publications, including Biomacromolecules, Journal of Materials Chemistry and others. It has been presented at the International Material Research Conference in China, the Green Chemistry and Engineering Conference in Washington, D.C., the American Chemical Society National Meeting in Anaheim, California, and other events.
Initial funding was provided by the Kansas Soybean Commission and the United Soybean Board. Additional funding sources include the U.S. Department of Agriculture and the National Institute of Food and Agriculture.
Sun developed the resin with Donghai Wang, professor of biological and agricultural engineering, and Kollbe Ahn, a 2011 Kansas State University grain science doctoral graduate who is now a research professor at the University of California, Santa Barbara.
The patent was issued to the Kansas State University Research Foundation, a nonprofit corporation responsible for managing technology transfer activities at the university.