| 摘要 |
<p>Derivatized solid epoxy resins (I), are new. Derivatized solid epoxy resins of formula (I), are new. R1a, R2a : H or CH 3; X : H or a keto-oxirane unit of formula (II); R 1>(m+q+1) isocyanate group terminated polyurethane prepolymer, obtained after removing all the terminated permanent isocyanate group; R 2>a blockage group, which is eliminated above 100[deg] C; R 4>primary or secondary hydroxyl group containing aliphatic, cycloaliphatic, aromatic or araliphatic epoxide after removing hydroxide- and epoxide- group; p : 1-3; either m, q : greater than or equal to 0; or m+q : 1-8; and s : 2-12. Independent claims are included for: (1) a composition comprising (I); (2) the preparation of (I); (3) a pasted article, obtained by pasting the article with the composition and heating the pasted material to 100-220[deg] C, preferably 120-200?C; and (4) a foamed article, obtained by partially filling the cavities of the article with the composition and heating the pasted material at 100-220[deg] C, preferably 120-200[deg] C. [Image] [Image].</p> |
