| 摘要 |
<p>PCT No. PCT/EP95/04868 Sec. 371 Date Jun. 19, 1997 Sec. 102(e) Date Jun. 19, 1997 PCT Filed Dec. 11, 1995 PCT Pub. No. WO96/20309 PCT Pub. Date Jul. 4, 1996Cellulose-containing, optionally wood-containing materials which have been obtained using water-dispersible polyisocyanates which in turn have been prepared by reaction of the following starting components: a) modified polyisocyanates of the formula (I) in which: R1 denotes an aliphatic hydrocarbon radical having 2 to 18 carbon atoms; a cycloaliphatic hydrocarbon radical having 4 to 15 carbon atoms; an aromatic hydrocarbon radical having 6 to 15 carbon atoms or an araliphatic hydrocarbon radical having 8 to 15 carbon atoms, R2 denotes an aliphatic hydrocarbon radical which has 10 to 35 carbon atoms and optionally contains double bonds, R3 denotes a hydrocarbon radical which is at least divalent and can also be heterocyclic, with inclusion of the ester oxygen or amide nitrogen from X, where R=H or C1-C4-alkyl, or R is a constituent of a cyclic structure, n denotes a number >/=2 and y denotes a number >/=1, b) non-modified polyisocyanates, c) polyethylene oxide polyether alcohols optionally containing ester groups, d) optionally cycloaliphatic and/or aliphatic amines which optionally contain ether, ester or amide groups, have at least one functional group which is reactive towards isocyanates and contain at least one tertiary amino group and/or ammonium group.</p> |
