Office for Technology Commercialization
http://www.research.umn.edu/techcomm
612-624-0550

Bio-Based Pressure Sensitive Adhesive Alternative to Petroleum-Based Adhesives

Technology #20110026

Questions about this technology? Ask a Technology Manager

Download Printable PDF

Collections
Image Gallery
Bio-based Monomer Chain Polymer Made of Monomer Chain  Grafted Onto AcrylateLabels Could Use Bio-Based Pressure Sensitive Adhesives
Categories
Researchers
Steve Severtson
Dr. Severtson's research is focused on the study of wetting and adhesion involving soft substrates, characterization of small molecule migration in polymer films and development of environmentally benign coatings and adhesives.
External Link (www.bbe.umn.edu)
Managed By
Eric Hockert
Technology Marketing Manager 612-624-9568
Patent Protection

US Patent Pending
Files and Attachments
Bio-Based Adhesives Term Sheet [PDF]

Bio-Based Pressure Sensitive Adhesive Applications

Bio-based pressure sensitive adhesives (PSAs) are a developing area in the adhesives market. Of particular importance is the latex-based pressure sensitive adhesive. These latex-based PSAs have a wide variety of applications from self-adhesive stamps to bandages but are derived from petroleum which is a limited resource and is susceptible to price fluctuations.

MN-IP Try and Buy
Try
  • Trial fee is $5,000 for a six month license
Buy
  • $30,000 conversion fee (TRY to BUY)
  • No patent costs
  • Royalty rate of 3% (2% for MN company)
  • Royalty free for first $1M in sales

** View the Term Sheet **
** Contact Eric Hockert for specific details. **

Bio-Based Monomer Chains are the Key to Bio-Based Pressure Sensitive Adhesives

The University of Minnesota has developed renewable macromonomers, or chains of monomers, that graft onto petroleum based acrylates such as 2-ethyl hexyl acrylate or n-butyl acrylate resulting in a PSA with high bio-based content and similar adhesive properties to petroleum based PSAs. The resulting polymer is composed of up to 60% bio-based material. Unlike other macromonomers, these monomer chains are compatible with established manufacturing techniques, such as conventional emulsion and miniemulsion polymerization. Furthermore, the amount and composition of the macromonomer can be modified to adjust the properties of the PSA.

FEATURES AND BENEFITS OF BIO-BASED PRESSURE SENSITIVE ADHESIVE

  • Efficiently combines commercially available acrylate with a bio-based monomer chain to form a bio-based pressure sensitive adhesive
  • Able to use up to 60% bio-based materials without sacrificing performance
  • Can be scaled up using emulsion polymerization, an existing manufacturing technology