Development of environmentally friendly coatings and paints using medium-chain-length poly(3-hydroxyalkanoates) as the polymer binder.
Unsaturated medium-chain-length poly(3-hydroxyalkanoates) (mcl-PHAs) produced by Pseudomonas putida from linseed oil fatty acids (LOFA) and tall oil fatty acids (TOFA), were used as the polymer binder in the formulation of high solid alkyd-like paints. The relatively high concentration of unsaturated alkyl side chains incorporated into the PHA resins resulted in oxidative drying PHA paints having excellent coating properties. The homogeneously pigmented PHA coatings yielded high-gloss, smooth and strong films upon curing and showed an excellent flexibility, a good adhesion to different substrates, cohesive film properties and resistance to chipping.
Agrotechnological Research Institute (ATO-DLO), Wageningen, The Netherlands. g.a.m.vanderwalle@ato.dlo.nl
G A
GA
van der Walle
G J
GJ
Buisman
R A
RA
Weusthuis
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G
Eggink
D004787:Environmental Pollution / Q000517:prevention & control; D005223:Fats; D005227:Fatty Acids / Q000378:metabolism; D007202:Indicators and Reagents; D008043:Linseed Oil; D010150:Paint; D010860:Pigments, Biological; D011091:Polyesters / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism; D016958:Pseudomonas putida / Q000378:metabolism*
D005223:Fats; D005227:Fatty Acids; D007202:Indicators and Reagents; D010860:Pigments, Biological; D011091:Polyesters; D008043:Linseed Oil; C013698:tallow