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Press Release

New Eco-Friendly Glue Designed by Cal Poly Chemistry Lab Leads to Public-Private Partnership

Contact: Nick Wilson


SAN LUIS OBISPO — A Cal Poly faculty member and several students have developed a new adhesive, in collaboration with an East Coast company, that has the potential to significantly impact the amount of consumer materials that are recycled in the U.S. and worldwide.

Students working in the Costanzo Lab
Cal Poly students Reed Kellar, a construction management major, and Taylor Vaughan, a biochemistry major, work in Cal Poly Chemistry Professor Phil Costanzo’s research lab. Reed is cutting adhesive coupons, and Taylor is bonding fabrics.

Professor Philip Costanzo has been developing a new glue in his Cal Poly laboratory in partnership with the technology development and consulting company Geisys Ventures, LLC (Geisys). Their public-private partnership is the basis for a joint commercial venture.

So far, seven students have been involved in developing the ecology-friendly product, gaining invaluable Learn by Doing experience in the process.

“Working with Dr. Costanzo in undergraduate research and in partnership with Geisys Ventures has been an exciting and rewarding experience in multiple ways,” said Taylor Vaughan, a Cal Poly biochemistry major from Ventura, California. “Seeing the positive progression of our project over the last few months has been invigorating. I have really enjoyed the hands-on learning environment and being a part of a fun group of people that also are passionate about chemistry and learning.”

Phil Costanzo
Phil Costanzo is a Cal Poly chemistry professor who heads a lab that created a novel adhesive with commercial applications.

Costanzo and Dr. Kristoffer Stokes, CEO of Geisys, combined their know-how in polymer science and industrial applications to generate a new type of glue. The technology began its life in the Costanzo lab with applications in biobased, fully recyclable coatings, and Stokes recognized adhesive recycling challenges in the textile and consumer electronics markets that technology could solve. The material is currently patent-pending, and the two entities recently formed a memorandum of understanding outlining their intent to collaborate on further development and commercialization of the product.

They created the new adhesive as an alternative to low-cost glues frequently used in consumer materials, such as clothing and electronics. Those glues tend to have bonded parts that are permanent, requiring energy-intensive recovery facilities to recycle. Thus, discarded products often end up in landfills.

“The goal is to significantly impact recycling and actually enable the circular economy,” Stokes said. “The part of the circle that has been completely neglected is this disassembly part. People talk about recycling plastics or using biobased materials, but rarely do you hear about disassembly of the item at the end of its life.”

Kristoffer Stokes
Dr. Kristoffer Stokes is the CEO of privately held Geisys Ventures, a company that’s collaborating with Cal Poly on the new adhesive product.

Stokes said that adhesives that can be removed require either harmful solvents or extremely hot conditions. Many can’t readily be removed without destroying the whole item.

The aim of the Cal Poly-Geisys partnership is to manufacture and market a product that breaks down much more easily.

“This (new Cal Poly) technology will take a durable glue bonded item, and — after treatment — make the glued parts peel apart like sticky notes,” Costanzo said. “We are currently focusing on adhesives in garments but are particularly interested in larger markets like consumer electronics.”

Stokes said that many apparel items including rain jackets, performance athletic wear, and even intimate wear are glued at the seams.

“Often, glue holds dissimilar materials that cannot be recycled together,” he said. “By defeating the adhesive, you can break apart this composite and more readily recycle the components.”

Students will continue to be part of the technology development with Geisys.

“Students are learning about how polymer science can be adapted to make more eco-friendly manufacturing approaches,” Costanzo said. “This develops their technical abilities as well as their critical-thinking and problem-solving skills.”

The team used existing procedures and materials and incorporated novel chemistry linkages (a sequence of bonds that links one polymer chain to another), referred to as Diels-Alder linkages, into the product. Polymers are substances with large molecules and are the basis of many living organisms and man-made materials.

“The procedure is straightforward, scalable, and suitable for completion by undergraduates, which demonstrates the robustness of the system,” Costanzo said.

Geisys is planning manufacturing scaleup and exploring further partnerships with selected adhesive manufacturers.

“We are excited to partner with Geisys Ventures on this important technology, highlighting Cal Poly’s focus to develop market transforming technologies with our private sector partners,” said Jim Dunning, Cal Poly’s associate vice president of corporate engagement and innovation.

About Geisys Ventures, LLC

Geisys Ventures is a privately held company focused on materials science and product development. The company has helped clients across North America, Europe, and Asia improve manufacturing, streamline processes, and connect R&D organizations to commercial viability. Projects they have worked on range from novel biobased textile materials, medical devices, plastics compounding, adhesives, and 3D printer resins — providing materials science and market expertise related to products or reduced manufacturing costs. Learn more about Geisys Ventures.

About the Costanzo Lab at Cal Poly

Professor Philip Costanzo’s lab at Cal Poly focuses on the exploitation of simple and efficient chemistry to create novel and dynamic polymeric materials. Since 2007, more than 105 undergraduate students have directly contributed to work in the Costanzo lab. Their efforts have resulted in 21 peer-reviewed publications, two patents, and over 130 presentations. Learn more about the Costanzo lab.

About Cal Poly

Founded in 1901 and part of the renowned California State University system since 1960, Cal Poly is a nationally ranked, four-year, comprehensive polytechnic public university located in San Luis Obispo, California. Known for its Learn by Doing approach, small class sizes and open access to expert faculty, Cal Poly is a distinctive learning community whose 22,000 academically motivated students enjoy an unrivaled hands-on educational experience that prepares them to lead successful personal and professional lives.