Polyurethanes made from hydroxy-methyl containing fatty acids or alkyl esters of such fatty acids

Abstract From the Canadian patent

Polyurethane polymers are made from a reaction mixture that contains a polyisocyanate, a hydroxylmethyl-containing fatty acid or ester and another , polyol, polyamine or aminoalcohol. The carboxylic acid or ester group on the hydroxymethyl~containing fatty acid or ester are capable of engaging in a variety of reactions with the polyisocyanate and/or amine or hydroxyl groups present in the reaction mixture. This allows for good quality high molecular , weight polymers to be produced even though the hydroxymethyl-containing fatty acid or ester tends to be a low functionality material.