manufacturing process has made it possible to develop high-performance D3 and D4 dispersion adhesives whose formaldehyde emissions are 80 % lower than those of [...] However, directly obtained tree resins (Figure 2) or terpene resins (Figure 3), which various citrus fruits, are also an option. Such biobased raw materials
https://www.jowat.com/fr-CA/detail-de-la-salle-de-presse/green-bonding-processes/