| 摘要 |
<p>A hot-melt composition comprising (a) an ethylenic copolymer resin, (b) a modified aromatic petroleum resin having a particular weight-average molecular weight and prepared by copolymerizing (1) a polymerizable component prepared by thermal cracking of a petroleum hydrocarbon having particular boiling temperature range, vinyltoluene content, and indene content, (2) a turpentine oil having a particular diene value, and (3) a phenol compound in particular proportions in the presence of a Friedel-Crafts catalyst, and (c) a particular amount of a wax. The composition can be used as a hot-melt paint, printing ink, adhesive, sealant, and the like and possesses excellent heat stability and improved heat-resistant adhesiveness.</p> |
