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UPN Ref Technology
67 High performance polymeric raw material for adhesive films
A new innovative polymer which vinyl acetate content can vary between 40 and 90 percent. The technology has outstanding tack characteristics, remains elastic at low temperatures and shows excellent shear strength.
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54 Elastic fast swelling hydrogel
A fast responsive superporous hydrogel technology. The crosslinking is maintained by hydrolyzable diacrylate polymer and vinyl modified polypeptide. As these crosslinks break down, the material will start to fall apart and shrink. In addition, this superporous hydrogel is elastic (mechanically resilient) as it can be stretched more than 100% of its original size.
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23 Making adhesives surfaces reversible
Thermo-expandable microspheres (TEMs), which consist of an outer shell of copolymer thermoplastic resin encapsulating a liquid hydrocarbon, when the heat trigger is applied at command the microspheres expand to over 100 times their volume, acting as a pressure activator to cleanly break the bond at the interface, and the cohesive structure. A key part of the patented technology is the functionalization of the TEMs surfaces, e.i. a conducting material is applied onto the polymeric shells of the microspheres. This additional layer enables quicker ways to get the heat to the TEM surface without damaging the material itself.
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