| 摘要 |
A hot-melt composition which comprises specific amounts of: (a) an ethylene copolymer resin; (b) a modified aromatic petroleum resin with a specific weight-average molecular weight obtained by copolymerizing (1) a polymerizable ingredient contained in a fraction resulting from the thermal cracking of petroleum hydrocarbons having a specific boiling point range, a specific vinyltoluene content, and a specific indene content, (2) beta -phellandrene or turpentine oil containing beta -phellandrene, and (3) a phenol compound in a specific proportion with the aid of a Friedel-Crafts catalyst; and (c) a wax. The composition has excellent thermal stability and improved high-temperature bonding properties. It is usable in a hot-melt coating material, printing ink, adhesive, sealant, etc.
|
