| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyisocyanate composition used as a curing agent of a two-pack polyurethane composition excellent in adhesion to substrates. <P>SOLUTION: The polyisocyanate composition comprises (A) a polyisocyanate compound comprising an aliphatic diisocyanate and/or an alicyclic diisocyanate, (B) an isocyanate-group-containing silane coupling agent, and optionally (C) at least one alkoxysilane compound selected from the group consisting of a tetraalkoxysilane represented by Si(OR)<SB>4</SB>(wherein Rs, which may be the same or different from each other, are each a 1-10C alkyl group or an aryl group), a condensate thereof, a derivative thereof, and a derivative of the condensate. <P>COPYRIGHT: (C)2008,JPO&INPIT |
