Rigid polyurethane foam prepared from a rape seed oil based polyol

By Yanhong Hu, Yun Gao, De-ning Wang, C. Hu, Stella Zu, Lieve Vanoverloop, D. Randall. 2002

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Physical Properties of Polyurethanes Produced from Polyols from Seed Oils: I. Elastomers (2007, methodology): “Other oils such as soybean oil- and rapeseed oil-based polyols have been used to make PU foams as well [ 7 , 9]. Due to the hydrophobic nature of the triacylglycerols (TAG), the predominant component in vegetable oils, the produced polymers have some excellent chemical and physical properties such a”
From Vegetable Oils to Polyurethanes: Synthetic Routes to Polyols and Main Industrial Products (2012, background): “77 However, several issues are raised when using polyfunctional molecules: 78 • ”
Polyurethane Foams Obtained from Castor Oil-based Polyol and Filled with Wood Flour (2009, background): “Although the hydroxyl amount in the unmodified oil is not high enough to formulate rigid polyurethanes, castor oil can be reacted with triethanolamine (alcoholysis) in order to increase the groups capable of reacting with isocyanates [5].”