Hot-melt adhesive

Highlights

The invention relates to hot-melt adhesives forbonding polyolefin-based substrates to dissimilar materials such as metals,wood, ceramics and thermoset plastics. For polyolefin composites, especially instructural applications, adhesion at a structural joint must be strong enough to carry a load transferred into or through the joint. Current commercia lhot-melt adhesives cannot sustain high loading levels. For polyolefin composite-based structures, the required bond strength is often much greater than with conventional unreinforced plastics since composite structures are used in higher performance applications.

Technology transfer

This technology is available for licensing. There is an opportunity for thi sinvention to be developed for particular applications and for demonstration ofthe final product through a collaborative research project. The business opportunity may be referred to by its NRC ID: 11426.

Market applications

Applications for hot-melt adhesive technology are extensive including transportation,construction, packaging, product assembly, bookbinding, woodworking and pressure sensitive tapes and labels.

How it works

A hot-melt adhesive composition comprising a blend of reactive fillers comprising an aluminum compound, a magnesium compound, a calcium compound, a barium compound or a mixture thereof: and a grafted polyolefin having a functional group for reaction with the reactive filter. The adhesion process isusually performed at a suitable temperature above the melt temperature of the polyolefin for a sufficient reaction time.

Benefits

  • Reduced material cost and high efficiency
  • Resistance to water, moisture and humidity
  • Increased bonding strength
  • Environmental benefits

Patents

Contact

To inquire about this technology, please contact:

Jason Pierosara, Portfolio Business Advisor
Telephone: 613-998-9378
Email: Jason.Pierosara@nrc-cnrc.gc.ca