| abstract |
A hot-melt composition comprising n [A] a cyclopentadiene-type resin having a bromine number of not more than 70 and a softening point of 50° to 170°C., said resin being the polymerization reaction product of 90 to 40% by weight of (I) a monomer containing a cyclopentadiene skeleton with 10 to 60% by weight of (II) at least one polar unsaturated monomer selected from the group consisting of (i) organic unsaturated cyano compounds containing 3 to 6 carbon atoms, (ii) alkenyl alkanoates derived from aliphatic monocarboxylic acids containing 1 to 4 carbon atoms and vinyl alcohol or allyl alcohol, and (iii) unsaturated carboxylic acid esters derived from unsaturated carboxylic acids containing 3 to 4 carbon atoms and aliphatic alcohols containing 1 to 6 carbon atoms, and n [B] an ethylenic copolymer. |