| 摘要 |
<p>The present invention relates to processes and products which have been obtained with, on the one hand, a natural component which is oil of cashew-nut shell and, on the other hand, di- and/or polyisocyanates. Since the oil is comprised of a mixture of a biphenol and a fatty acid, both having a benzene ring with phenol group and side chains with one to three double bonds, the isocyanates may react three different levels: a) the COOH of the acid; b) the phenolic OH; c) the double bond of the chains.</p> |
